ACG organism elsewhere		"Acu–a, R. A. 1987.  Comparaci—n de la ultraestructura de la c‡scara del hueveo de la tortuga Rhinoclemmys pulcherrima con la de los huevos de otros reptiles.  Rev. Biol. Trop. 35:41-48."
ACG study		"Adams, P. A. 1987.  Studies in neotropical Chrysopidae (Neuroptera) III.  Notes on Nodita amazonica Navas and N. oenops, n. sp.  Neuroptera International 4:287-294."
ACG study		"Adams, P. A. 1989.  A new genus of Berothidae from tropical america, with two new species.  Ms. in press."
ACG organism elsewhere		"Aldrich, J. R. and M. S. Blum.  1978.  Aposematic aggregation of a bug (Hemiptera: Coreidae):  the defensive display and formation of aggregations.  Biotropica 10:58-61."
ACG study		"Allen, W. H. 1988.  Biocultural restoration of a tropical forest.  BioScience 38:156-161."
ACG study		"Alvarado, A., A. Stam and J. Readgead 1982.  Crescentia alata and vertisol distribution in burned savannah in Guanacaste, Costa Rica.  Tropical Biology, an ecological approach 82-1, OTS unpublished report."
ACG organism elsewhere		"Alvarenga, S. and E. M. Flores.  Morfolog’a y germinaci—n de la semilla de caoba, Swietenia macrophylla King (Meliaceae).  Rev. Biol. Trop. 36:261-267.  "
ACG organism elsewhere		"Aragon, A.  1975.  Informe sobre la practica ganadera en Hacienda La Pacifica, Canas C.R."
ACG study		"Augspurger, C. K., M. A. Geber and J. P. Evans.  1985.  Reproductive output and biomass allocation in Sesbania emerus in a tropical swamp.  Amer. J. Bot. 72(7):1136-1143."
ACG organism elsewhere		"Austin, D. F.  1977.  Ipomoea carnea Jacq. vs. Ipomoea fistulosa Mart. ex Choisy. ms."
ACG study		"AzŽma, J. and J. Tournon 1980.  La PŽninsula de Santa Elena, Costa Rica: un massif ultrabasique charriŽ en marge pacifique de l'AmŽrique Centrale.  C. R. Acad. Sc. Paris, t. 290, SŽrie D:9-12."
ACG study		"AzŽma, J. and J. Tournon 1982.  40.  The Guatemalan Margin, the Nicoya Complex, and the origin of the Caribbean Plate.  Aubouin, J., von Huene, et al., eds., Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, Washington, D.C., vol. 67:739-745."
ACG study		"AzŽma, J., G. Glacon and J. Tournon 1981.  Nouvelles donnŽes sur le PalŽocŽne ‡ ForaminifŽres planctoniques de la bordure pacifique du Costa Rica (AmŽrique Centrale).  C. R. somm. Soc. GŽol. France, Fasc. 3:85-88."
ACG study		"AzŽma, J., J. Tournon, and A. Desmet 1985.  DŽcouverte de matŽriel ocŽanique du Lias-Dogger infŽrieur dans la pŽninsule de Santa Elena (Costa Rica, AmŽrique Centrale).  C. R. Acad. Sc. Paris, t. 300, SŽrie II, no. 15:759-764."
ACG habitat elsewhere		"Baker, H. G. 1970.  Evolution in the tropics.  Biotropica 2:101-111."
ACG organism elsewhere		"Baker, H. G.  1970.  Two cases of bat-pollination in Central America.  Revista de Biologia Tropical 17:187-197."
ACG organism elsewhere		"Baker, H. G.  1973.  Evolutionary relationships between flowering plants and animals in American and African tropical forests.  In Tropical forest ecosystems in Africa and South America:  a comparative review, B. J. Meggers, E. S. Ayensu and W. D. Duckworth eds., Smithsonian Institution Press, Washington, D. C., pp. 145-159."
ACG organism elsewhere		"Baker, H. G.  1975.  Sugar concentrations in nectars from hummingbird flowers.  Biotropica 7:37-41."
ACG organism elsewhere		"Baker, H. G.  1976.  ""Mistake"" pollination as a reproductive system, with special reference to the Caricaceae.  In Tropical trees:  variation, breeding and conservation, J. Burley and B. T. Styles eds., Academic Press, London, pp. 161-169."
ACG organism elsewhere		"Baker, H. G.  1977.  Non-sugar constituents of nectar.  Apidologie 8:349-356."
ACG organism elsewhere		"Baker, H. G. 1978.  Chemical aspects of the pollination biology of woody plants in the tropics.  In Tropical trees as living systems, P. B. Tomlinson and M. H. Zimmerman eds., Cambridge University Press, Cambridge, pp. 57-82."
ACG habitat elsewhere		"Baker, H. G.  1978.  Invasion and replacement in Californian and neotropical grasslands.  In Plant relations in pastures, J. R. Wilson ed., CSIRO, East Melbourne, pp. 367-384."
ACG organism elsewhere		"Baker, H. G. and I. Baker. 1973.  Amino acids in nectar and their evolutionary significance.  Nature 241:543-545."
ACG organism elsewhere		"Baker, H. G. and I. Baker . 1973.  Some anthecological aspects of the evolution of nectar-producing flowers, particularly amino acid production in nectar.  In Taxonomy and ecology, V. H. Heywood ed., Academic Press, London, pp. 243-264."
ACG organism elsewhere		"Baker, H. G. and I. Baker.  1975.  Studies of nectar constitution and pollinator-plant coevolution.  In Animal and plant coevolution, L. E. Gilbert and P. H. Raven eds., University of Texas Press, Austin, pp. 100-140."
ACG organism elsewhere		"Baker, H. G., I. Baker and P. A. Opler.  1973.  Stigmatic exudates and pollination.  In Pollination and dispersal, N. B. M. Brantjes and H. F. Linskens eds., Dept. of Botany, University of Nijmegan, Netherlands, pp. 47-60."
ACG organism elsewhere		"Baker, H. G., K. S. Bawa, G. W. Frankie and P. A. Opler.  1980.  Reproductive biology of plants in tropical forests.  In Tropical forest ecosystems, F. B. Golley ed., Springer Verlag."
ACG organism elsewhere		"Baker, H. G., P. A. Opler and I. Baker.  1978.  A comparison of the amino acid complements of floral and extrafloral nectars.  Bot. Gaz. 139:322-332."
ACG organism elsewhere		"Barone, J. A. 1998.  Host-specificity of folivorous insects in a moist tropical forest.  Journal of Animal Ecology 67:400-409."
ACG organism elsewhere		"Barrett, S. C. H.  1977.  The breeding system of Pontederia rotundifolia L., a tristylous species.  New Phytol. 78:209-220."
ACG organism elsewhere		"Barrett, S. C. H.  1977.  Tristyly in Eichhornia crassipes (Mart.) Solms (Water Hyacinth).  Biotropica 9:230-238."
ACG organism elsewhere		"Barrett, S. C. H.  1978.  Breeding systems in Eichhornia and Pontederia, Tristylous genera of the Pontederiaceae.  Dissertation Abstracts International Vol. 38, No. 8."
ACG organism elsewhere		"Barrett, S. C. H.  1978.  Floral biology of Eichhornia azurea (Swartz) Kunth (Pontederiaceae).  Aquatic Botany 5:217-228."
ACG organism elsewhere		"Barrett, S. C. H. 1978.  Heterostyly in a tropical weed: the reproductive biology of the Turnera ulmifolia complex (Turneraceae).  Can. J. Bot. 56:1713-1725. "
ACG organism elsewhere		"Barrett, S. C. H.  1979.  The evolutionary breakdown of tristyly in Eichhornia crassipes (Mart.) Solms (Water Hyacinth).  Evolution 33:499-510."
ACG organism elsewhere		"Bawa, K. S.  1973.  Chromosome numbers of tree species of a lowland tropical community.  J. Arnold Arboretum 54:422-434."
ACG organism elsewhere		"Bawa, K. S.  1974.  Breeding systems of tree species of a lowland tropical community.  Evolution 28:85-92."
ACG organism elsewhere		"Bawa, K. S.  1976.  Breeding of tropical hardwoods: an evaluation of underlying bases, current status and future prospects.  In Tropical trees: variation, breeding and conservation, J. Burley and B. T. Styles eds., Academic Press, London, pp. 43-59."
ACG organism elsewhere		"Bawa, K. S.  1976.  Cytogenetics of tropical forest trees: progress and prospects.  Proc. XI IUFRO World Congress, Section 2, Oslo."
ACG organism elsewhere		"Bawa, K. S.  1977.  The reproductive biology of Cupania guatemalensis Radlk. (Sapindaceae).  Evolution 31:52-63."
ACG organism elsewhere		"Bawa, K. S.  1980.  Evolution of dioecy in flowering plants.  Ann. Rev. Ecol. Syst. 11:15-39."
ACG organism elsewhere		"Bawa, K. S.  1982.  Patterns of flowering in tropical plants.  In Handbook of experimental pollination biology, C. E. Jones and R. J. Little eds., Van Nostrand & Co., New York (in press)."
ACG organism elsewhere		"Bawa, K. S. and C. J. Webb.  1982.  Floral variation in Muntingia calabura (Elaeocarpaceae): sexual differentation in species with hermaphroditic flowers.  Submitted to Evolution."
ACG organism elsewhere		"Bawa, K. S. and C. J. Webb.  1982.  Flower, fruit and seed abortion in tropical forest trees: implications for the evolution of paternal and maternal reproductive strategies.  Manuscript."
ACG organism elsewhere		"Bawa, K. S. and J. H. Beach.  1981.  Evolution of sexual systems in flowering plants.  Ann. Mo. Bot. Gard. 68:254-274."
ACG organism elsewhere		"Bawa, K. S. and P. A. Opler.  1975.  Dioecism in tropical forest trees.  Evolution 29:167-179."
ACG organism elsewhere		"Bawa, K. S. and P. A. Opler.  1977.  Spatial relationships between staminate and pistillate plants of dioecious tropical forest trees.  Evolution 31:64-68."
ACG organism elsewhere		"Bawa, K. S. and P. A. Opler.  1978.  Why are pistillate inflorescences of Simarouba glauca eaten less than staminate inflorescences?  Evolution 32:673-676."
ACG organism elsewhere		"Bawa, K. S., C. J. Webb and A. F. Tuttle.  1982.  The adaptive significance of monoecism in Cnidosculus urens (Euphorbiaceae).  Bot. J. Linn. Soc. (in press)."
ACG organism elsewhere		"Beach, J. H. and K. S. Bawa.  1981.  Role of pollinators in the evolution of dioecy from distyly.  Evolution 34:1138-1142."
ACG study		"Bell, E. A. and D. H. Janzen.  1971.  Medical and ecological considerations of L-DOPA and 5-HTP in seeds.  Nature 229:136- 137."
ACG study		"Bell, E. A., M. Y. Qureshi, R. J. Pryce, D. H. Janzen, P. Lemke and J. Clardy.  1980.  2,4-Methanoproline (2-Carboxy-2,4- methanopyrrolidine) and 2,4-Methanoglutamic Acid (1-Amino-1, 3- dicarboxycyclobutane) in seeds of Ateleia herbert-smithii Pitier (Leguminosae).  Journal of the American Chemical Society 102:1409-1412."
ACG study		"Benirschke, K., J.  Berger, D. H. Janzen, W. Hallwachs, G. K. Meffe, N. Myers, W. D. Newmark, D. S. Woodruff, and J. Bradbury 1998.  Letter to the editor: Wildlife conservation in Kenya. Science 280:1510."
ACG organism elsewhere		"Bentley, B. L. 1976.  Plants bearing extrafloral nectaries and the associated ant community: interhabitat differences in the reduction of herbivore damage.  Ecology 57:815-820."
ACG organism elsewhere		"Bentley, B. L. 1977.  Extrafloral nectaries and protection by pugnacious bodyguards.  Ann. Rev. Ecol. Syst. 8:407-427."
ACG organism elsewhere		"Bentley, B. L. 1977.  The protective function of ants visiting the extrafloral nectaries of Bixa orellana (Bixaceae).  J. Ecol. 65:27-38."
ACG organism elsewhere		"Bentley, B. L.  1979.  Extrafloral nectaries: bait for scarecrows.  Natural History, (in press)."
ACG organism elsewhere		"Bentley, B. L.  1979.  Foraging patterns of ants visiting extrafloral nectaries: the effects of plant life-form.  (Manuscript submitted to J. of Tropical Ecology.)"
ACG organism elsewhere		"Bentley, B. L. 1979.  The role of nectaries in agricultural systems.  In The biology of nectaries, T. Elias and B. Bentley eds., Columbia University Press, (in press)."
ACG study		"Bergoeing, J. P.  1978.  Peninsula de Santa Elena, Costa Rica.  Estudio geomorfologico preliminar.  Informe Semestral, Instituto Geografica Nacional, July to December, pp. 19-30."
ACG study		"Bergoeing, J. P., L. G. Brenes and E. Malavassi.  1983.  Geomorfologia del Pacifico Norte de Costa Rica (explicacion del mapa geomorfologico 1:100,000).  Oficina de Publicaciones, Universidad de Costa Rica, Ciudad Universitaria, 110 pp."
ACG study		"Bernays, E. A., and Janzen, D. H. 1988.  Saturniid and sphingid caterpillars:  two ways to eat leaves.  Ecology 69:1153-1160."
ACG study		"Bills, G. F., A. Y. Rossman and J. D. Polishook 1994.  Rediscovery of Albosynnema elegans and Solheimia costaspora.  Sydowia 46(1):1-11."
ACG study		"Bills, G. F. and J. D. Polishook 1994.  Abundance and diversity of microfungi in leaf litter of a lowland rain forest in Costa Rica.  Mycologia 86(2):187-198."
ACG study		"Bleiler, J. A., Rosenthal, G. A., and Janzen, D. H. 1988.  Biochemical ecology of canavanine-eating seed predators.  Ecology 69:427-433."
ACG organism elsewhere		"Bolstad, P. V. and K. S. Bawa.  1982.  Self-incompatibility in Gmelina arborea L. (Verbenaceae).  Silv. Genet. (in press)."
ACG study		"Bonaccorso, F. J. and D. C. Turner.  1979.  Seasonal variation in the structure and diversity of tropical dry forest bat communities (in preparation)."
ACG study		"Bonaccorso, F. J. and T. J. Gush 1987.  Feeding behaviour and foraging strategies of captive phyllostomid fruit bats: an experimental study.  J. Animal Ecology 56:907-920. "
ACG study		"Bonoff, M. B. and D. H. Janzen.  1980.  Small terrestrial rodents in 11 habitats in Santa Rosa National Park, Costa Rica.  Brenesia 17:163-174."
ACG organism elsewhere		"Borchert, R. and H. Honda 1984.  Control of development in the bifurcating branch system of Tabebuia rosea.  A computer simulation.  Bot. Gazette 145:184-195."
ACG organism elsewhere		"Borchert, R. and P. B. Tomlinson 1984.  Architecture and adaptive geometry of the tropical tree, Tabebuia rosea.  American Journal of Botany 71:958-969."
ACG study		"Boucher, D. H.  1981.  Seed predation by mammals and forest dominance by Quercus oleoides, a tropical lowland oak.  Oecologia 49:409- 414."
ACG habitat elsewhere		"Bourgeois, W. W., D. W. Cole, H. Reikerk and S. P. Gessel.  1972.  Geology and soils of comparative ecosystem study areas, Costa Rica.  Contribution no. 11, Institute of Forest Products, College of Forest Resources, University of Washington, 41 pp."
ACG organism elsewhere		"Bradbury, J. W. and S. L. Vehrencamp.  1976.  Social organization and foraging in emballonurid bats.  I.  Field Studies.  Behav. Ecol. Sociobiol. 4:337-381."
ACG organism elsewhere		"Bradbury, J. W. and S. L. Vehrencamp.  1976.  Social organization and foraging in emballonurid bats.  II.  A model for the determination of group size.  Behav. Ecol. Sociobiol. 1:383-404."
ACG organism elsewhere		"Bradbury, J. W. and S. L. Vehrencamp.  1977.  Social organization and foraging in emballonurid bats.  III.  Mating Systems.  Behav. Ecol. Sociobiol. 2:1-17."
ACG organism elsewhere		"Bradbury, J. W. and S. L. Vehrencamp.  1977.  Social organization and foraging in emballonurid bats.  IV.  Parental investment patterns.  Behav. Ecol. Sociobiol. 2:19-29."
ACG study		"Brooks, S. J. 1989.  New dragonflies (Odonata) from Costa Rica.  Tijdschrift voor Entomologie 132:163-176."
ACG study		"Brooks, S. J. 1989.  Odonata collected from Guanacaste National Park, Costa Rica, July 1988.  Notulae Odonatologicae 3:49-64.  "
ACG study		"Brusca, R. C. and E. W. Iverson.  A guide to the marine isopod Crustacea of Pacific Costa Rica.  Rev. Biol. Trop. 33(Supl. 1):1-77."
ACG habitat elsewhere		"Bullock, S. H., H. A. Mooney, and E. Medina 1995.  Seasonally dry tropical forests.  Cambridge University Press, New York, 450 pp."
ACG organism elsewhere		"Burcham, J. 1988.  Fish communities and environmental characteristics of two lowland streams in Costa Rica.  Rev. Biol. Trop. 36:273-285."
ACG study		"Burnham, R. J. 1997.  Stand characteristics and leaf litter composition of a dry forest hectare in Santa Rosa National Park, Costa Rica.  Biotropica 29(4):384-395."
ACG study		"Burns, J. M. 1996.  Genitalia and the proper genus:  Codatractus gets mysie and uvydixa --in a compact cyda group--as well as a hysterectomy, while Cephise gets part of Polythrix (Hesperiidae: Pyrginae).   J. Lepidop. Soc. 50:173-216."
ACG study		"Carroll, C. R. and D. H. Janzen.  1973.  Ecology of foraging by ants.  Ann. Rev. Ecol. Syst. 4:231-257."
ACG habitat elsewhere		"Ceballos, G. and A. Garc’a 1995.   Conserving neotropical biodiversity: the role of dry forests in western Mexico.  Conservation Biology 9:1349-1356."
ACG organism elsewhere		"Censky, E. J. and C. J. McCoy 1988.  Female reproductive cycles of five species of snakes (Reptilia: Colubridae) from the Yucatan Peninsula, Mexico.  Biotropica 20:326-333."
ACG study		"Chapman, C. A. 1988.  Patterns of foraging and range use by three species of neotropical primates.  Primates 29:177-194."
ACG study		"Chapman, C. A. 1989.  Primate seed dispersal: the fate of dispersed seeds.  Biotropica 21:148-154. "
ACG study		"Chapman, C. A. and L. J. Chapman 1990.  Density and growth of some tropical dry forest trees: comparisons between successional forest types.  Bulletin of the Torrey Botanical Club 117:226-231."
ACG study		"Chapman, C. A., L. J. Chapman and K. E. Glander 1989.  Primate populations in northwestern Costa Rica: potential for recovery.  Primate Conservation 10:37-44. "
ACG study		"Chapman, C. A., R. W. Wrangham and L. J. Chapman 1995.  Comparative sociology of spider monkeys and chimpanzees:  ecological constraints on group size.  Ecological Monographs (in press)."
ACG organism elsewhere		"Chazdon, R. L.  1978.  Ecological aspects of the distribution of C4 grasses in selected habitats of Costa Rica.  Biotropica 10:265- 269."
ACG organism elsewhere		"Chemsak, J. A. 1972.  A new seed-inhabiting cerambycid from Costa Rica.  Pan-Pac. Ent. 48:150-152."
ACG study		"Chemsak, J. A. 1986.  New Onciderini from Santa Rosa National Park, Costa Rica (Coleoptera: Cerambycidae).  J. New York Ent. Soc. 94:16-19."
ACG study		"Ciccio, J. F. 1977.  Tabersonina y cornonaridina en semillas de plantas del genero Stemmadenia (Apocynaceae).  Brenesia 12/13:21-24."
ACG study		"Ciccio, J. F. and M. Guzman  1976.  Aceites de semillas de plantas del genero Stemmadenia (Apocynaceae).  Brenesia 9:31-36."
ACG organism elsewhere		"Clark, M. R. and K. E. Glander.  1981.  Adoption of infant howling monkeys (Alouatta palliata).  American Journal of Primatology 1:469-472."
ACG organism elsewhere		"Clark, M. R., E. L. Zucker and N. J. Scott.  1986.  Population trends of the mantled howler groups of La Pacifica, Guanacaste, Costa Rica.  American Journal of Primatology 11:79-88."
ACG study		"Clark, S. M. 1993.  A new genus and two new species of Luperini (Coleoptera: Chrysomelidae: Galerucinae) from Costa Rica.  Insecta Mundi 7:215-218."
ACG study		"Clark, W. E. 1988.  Revision of the weevil genus Loncophorus Chevrolat (Coleoptera: Curculionidae, Anthonominae).  Quaestiones Entomologicae 24:465-520.  "
ACG study		"Clark, W. E. and H. R. Burke.  1986.  A new neotropical species of Anthonomus (Coleoptera: Curculionidae) associated with Bombacopsis quinata (Bombacaceae).  Proc. Entomol. Soc. Wash. 88:320-327."
ACG study		"Clegg, D. O., E. E. Conn and D. H. Janzen.  1979.  Developmental fate of the cyanogenic glucoside linamarin in Costa Rican wild lima bean seeds.  Nature 278:343-344."
ACG study		"Coghlan, A. 1994.  Costa Rican tree roots out plantation pests.  New Scientist.  16 Apr 1994:8."
ACG study		"Conant, R.  1984.  A new subspecies of the pit viper, Agkistrodon bilineatus (Reptilia: Viperidae) from Central America.  Proc. Biol. Soc. Wash. 97(1):135-141."
ACG organism elsewhere		"Conklin, N. L. 1987.  The potential nutritional value to cattle of some tropical browse species from Guanacaste, Costa Rica.  Ph. D. Thesis, Cornell University, 329 pp.  "
ACG organism elsewhere		"Conklin, N. L. 1989.  Using fodder trees to formulate rations for ruminants - the practical application of the chemical values generated by a nutrition laboratory.  Ms."
ACG organism elsewhere		"Conklin, N. L., R. E. McDowell and P. J. Van Soest 1989.  Ranking twenty-two tropical browse species from Guanacaste, Costa Rica, for their potential nutritional value to cattle.  Ms. submitted to Turrialba. "
ACG organism elsewhere		"Corea, E. A. and I. G. Chacon.  1984.  Descripcion y observaciones preliminares del comportamiento y habitat de une nueva subespecie de Morpho polyphemus (Lepidoptera: Morphinae) de Costa Rica.  Brenesia 22:183-188."
ACG organism elsewhere		"Cornaby, B. W.  1974.  Carrion reduction by animals in contrasting tropical habitats.  Biotropica 6:51-63."
ACG study		"Cornelius, S. E.  1986.  The sea turtles of Santa Rosa National Park.  INCAFO, Madrid, Spain, 64 pp."
ACG study		"Cornelius, S. E. and D. C. Robinson 1987.  Post-nesting movements of female Olive Ridley Turtles tagged in Costa Rica.  Vida Silvestre Neotropica l:12-23."
ACG study		"Corrales, J. F. and M. E. Epstein 1997.  Review of Costa Rican Venadicodia, with descriptions of two new species and localities for V. ruthea (Lepidoptera: Limacodidae).  Revista de Biologia Tropical 45(3):1093-1105."
ACG study	marine	"Cortes, J. 1996/1997 Comunidades coralinas y arrecifes del Area de Conservacion Guanacaste, Costa Rica.  Revista de Biologia Tropical 44/45:623-625."
ACG organism elsewhere		"Coville, R. E., G. W. Frankie and S. B. Vinson.  1983.  Nests of Centris segregata (Hymenoptera: Anthophoridae) with a review of the nesting habits of the genus.  J. Kans. Entomol. Soc. 56:109- 122."
ACG organism elsewhere	ant-plant mutualisms	"Cronin, G. 1998.  Between-species and temporal variation in Acacia-ant-herbivore interactions.  Biotropica 30:135-139."
ACG organism elsewhere		"Crow, G. E. and D. I. Rivera 1986.  Aquatic vascular plants of Palo Verde National Park, Costa Rica.  Uniciencia 3:71-78."
ACG organism elsewhere		"Crow, G. E., D. I. Rivera and C. Charpentier 1987.  Aquatic vascular plants of two Costa Rican ponds.  Selbyana 10:31-35."
ACG habitat elsewhere		"Cuperus, H. J.  1973.  Planificaci—n du Domaine ""La Pacifica"" Ca–as Institute d'economie rural EPEZ, Zurich."
ACG study		"Dangerfield, P. C., J. B. Whitfield, M. J. Sharkey, D. H. Janzen and I. Mercado. 1996. Hansonia, a new genus of cardiochiline Braconidae (Hymenoptera) from Costa Rica, with notes on its biology.  Proc. Entomol. Soc. Wash. 98: 592-596."
ACG study		"Darkin-Rattray, S. J. et al 1996.  Apicidin: a novel antiprotozoal agent that inhibits parasite histone deacetylase.  Proc. Natl. Acad. Sci. 93:13143-13147. "
ACG organism elsewhere		"Daubenmire, R. 1972.  Ecology of Hyparrhenia rufa (Nees) Stapf. in derived savanna in northwestern Costa Rica.  Journal of Applied Ecology 9:11-23."
ACG habitat elsewhere		"Daubenmire, R.  1972.  Phenology and other characteristics of tropical semi-deciduous forest in northwestern Costa Rica.  Journal of Ecology 60:147-170."
ACG habitat elsewhere		"Daubenmire, R. 1972.  Some ecological consequences of converting forest to savanna in northwestern Costa Rica.  Tropical Ecology 13:31-51."
ACG habitat elsewhere		"Daubenmire, R. 1973.  Standing crops and primary production in savanna derived from semi-deciduous forest in Costa Rica.  Botanical Gazette 133:395-401."
ACG study		"Davis, D. R., Clayton, D. H., Janzen, D. H., and Brooke, A. P. 1986.  Neotropical Tineidae, II: biological notes and descriptions of two new moths phoretic on spiny pocket mice in Costa Rica (Lepidoptera:  Tineoidea).   Proceedings of the Entomological Society of Washington  88:98-109."
ACG study	parasitoids	"Delvare, G. and Z. Boucek 1992.  On the New World Chalcididae (Hymenoptera).  Memoirs of the American Entomological Institute No. 53:1-"
ACG study		"Dengo, G.  1962.  Estudio geologico de la region de Guanacaste, Costa Rica.  Instituto Geografico National, San Jose, Costa Rica."
ACG organism elsewhere		"Derr, J. A. 1979.  Coevolution of the habitat ""template"" and the life history of a tropical seed-feeding insect.  Manuscript submitted to Ecology."
ACG organism elsewhere		"Derr, J. A.  1979.  The nature of variation in the life history of a colonizing insect species.  Manuscript submitted to Evolution."
ACG organism elsewhere		"Derr, J. A. and J. K. Ord.  1979.  Feeding preferences of a tropical seed-feeding insect: an analysis of a distribution of insects and seeds in the field.  To appear in J. K. Ord, G. P. Patil, and C. Taillie (eds).  Statistical Distributions in Ecological Work.  Statistical Ecology Vol. S. Fairland, Maryland: International Co-operative Publishing House."
ACG organism elsewhere		"Derr, J. A. and J. K. Ord.  1979.  Field estimates of insect colonization II.  To appear in Patil, G. P. and M. Rosenzweig (eds.) Contemporary Quantitative Ecology and Related Econometrica.  Statistical Ecology Vol. S12."
ACG organism elsewhere		"Derr, J. A. and J. K. Ord.  1979.  Field estimates of insect colonization.  June J. Anim. Ecol. (in press)."
ACG study		"DeVries, P. J.  1978.  A record of Agrias amydon (Nymphalidae) from Costa Rica.  J. Lep. Soc. 32:310."
ACG study		"Dodson, C. D., Stermitz, F. R., Castro C., O., and Janzen, D. H. 1987.  Neolignans from fruits of Ocotea veraguensis.  Phytochemistry 26:2037-2040."
ACG organism elsewhere		"Downhower, J. and D. E. Wilson.  1973.  Wasps as a defense mechanism of katydids.  Amer. Midl. Nat. 89:451-455."
ACG habitat elsewhere		"Elizondo C., L. H. and Q. JimŽnez M. 1988.  La sabana arbolada ""El Escobio"", Liberia, Guanacaste, Costa Rica.  Rev. Biol. Trop. 36:175-185."
ACG study		"Etse, J. T., A. I. Gray and P. G. Waterman 1987.  Chemistry in the Annonaceae, XXIV.  Kaurane and kaur-16-ene diterpenes from the stem bark of Annona reticulata.  Journal of Natural Products 50:979-983. "
ACG study		"Etse, J. T. and P. G. Waterman 1986.  Alkaloids and an acetylenic lactone from the stem bark of Sapranthus palanga.  Phytochemistry 25:1903-1905."
ACG study		"Etse, J. T. and P. G. Waterman 1986.  Chemistry in the Annonaceae, XXII.  14-hydroxy-25-desoxyrollinicin from the stem bark of Annona reticulata.  Journal of Natural Products 49:684-686."
ACG study		"Evans, S. V., Fellows, L. E., Janzen, D. H., Chambers, J., and Hider, R. C. 1985.  Erythro-gamma-hydroxyhomo-L-arginine:  an amino acid from seed of Lonchocarpus costaricensis, and its preferential interaction with borate.  Phytochemistry 24:1289-1292."
ACG habitat elsewhere		"Ewel, J. J.  1977.  Differences between wet and dry successional tropical ecosystems.  Geo-Eco-Trop 1:103-117."
ACG habitat elsewhere		"Ewel, J. J.  1980.  Tropical succession: manifold routes to maturity.  Biotropica 12(1):in press."
ACG study		"Fedigan, L. M., L. Fedigan and C. Chapman 1985.  A census of Alouatta palliata and Cebus capucinus monkeys in Santa Rosa National Park, Costa Rica.  Brenesia 23:309-322."
ACG study		"Fellows, L. E., E. A. Bell, T. S. Lee and D. H. Janzen 1979.  Tetrahydrolathyrine: a new amino acid from seeds of Lonchocarpus costaricensis.  Phytochemistry 18:1333-1335.  "
		"Fenton, M. B. and T. H. Fleming.  1976.  Ecological interactions between bats and nocturnal birds.  Biotropica 8:104-110."
ACG organism elsewhere		"Fitch, H. S. and R. W. Henderson.  1978.  Ecology and exploitation of Ctenosaura similis.  Univ. Kansas Sci. Bull. 51:483-500."
ACG organism elsewhere		"Fleming, T. H.  1973.  The number of rodent species in two Costa Rican forests.  J. Mammal. 54:518-521."
ACG organism elsewhere		"Fleming, T. H.  1974.  Social organization in two species of Costa Rican heteromyid rodents.  J. Mammal. 55:543-560."
ACG organism elsewhere		"Fleming, T. H.  1974.  The population ecology of two species of Costa Rican heteromyid rodents.  Ecology 55:493-510."
ACG organism elsewhere		"Fleming, T. H.  1975.  The role of small mammals in tropical ecosystems.  In Productivity investigations of small mammals.  IBP series, Cambridge Univ. Press. (Chapt. 12)."
ACG organism elsewhere		"Fleming, T. H.  1977.  Growth and development of two species of tropical heteromyid rodents.  Amer. Midl. Natur. 98:109-123."
ACG organism elsewhere		"Fleming, T. H.  1977.  The response of two species of tropical heteromyid rodents to reduced food and water availability.  J. Mammal. 58:102-106."
ACG study		"Fleming, T. H.  1979.  Do tropical frugivores compete for food?  Amer. Zool. 20:in press."
ACG study		"Fleming, T. H.  1979.  Neotropical mammals: faunal origins, community composition, abundance, and function.  In Trans. Sixth Aberdeen- Hall Sympos., A. G. Marshall ed., Malesian Ecology."
ACG study		"Fleming, T. H.  1981.  Fecundity, fruiting pattern, and seed dispersal in Piper amalago (Piperaceae), a bat-dispersed tropical shrub.  Oecologia 51:42-46."
ACG study		"Fleming, T. H.  1981.  Los mamiferos del Parque Nacional Santa Rosa.  Serie Materiales de Ensenaza No. 1, Universidad Estatal a Distancia, San Jose, Costa Rica, 13 pp."
ACG study		"Fleming, T. H.  1982.  The foraging strategies of plant-visiting bats.  In The ecology of bats, T. H. Kunz ed., Plenum Press, NY, (Chapt. 8)."
ACG study		"Fleming, T. H.  1983.  Life history accounts of Liomys salvini, Heteromys desmarestianus, Carollia perspicillata, and Piper species.  In Costa Rican natural history, D. H. Janzen ed., Univ. Chicago Press, Chicago, pp. 474-477, 457-458."
ACG study		"Fleming, T. H.  1985.  A day in the life of a Piper-eating bat.  Natural Hist. 94(6):52-56."
ACG study		"Fleming, T. H.  1985.  Coexistence of five sympatric Piper (Piperaceae) species in a Costa Rican dry forest.  Ecology  66:688-700."
ACG study		"Fleming, T. H. 1988.   Secular changes in Costa Rican rainfall:  correlation with elevation.  Journal of Tropical Ecology 22:87-91.  "
ACG study		"Fleming, T. H. 1988.  The short-tailed fruit bat.  University of Chicago Press, Chicago, 365 pp."
ACG study		"Fleming, T. H. and A. E. Perry.  1980.  Ant and rodent predation on small, animal-dispersed seeds in a dry tropical forest.  Brenesia 17:11-22."
ACG study		"Fleming, T. H. and C. F. Williams 1990.  Phenology, seed dispersal, and recruitment in Cecropia peltata (Moraceae) in Costa Rican tropical dry forest.  Journal of Tropical Ecology 6: 163-178."
ACG study		"Fleming, T. H. and E. R. Heithaus.  1981.  Frugivorous bats, seed shadows and the structure of tropical forests.  Biotropica 13:45-53."
ACG organism elsewhere		"Fleming, T. H. and G. J. Brown.  1975.  An experimental analysis of seed hoarding and burrowing behavior in two species of Costa Rican heteromyid rodents.  J. Mammal. 56:301-315."
ACG study		"Fleming, T. H. and J. S. Heywood.  1986.  Low genetic diversity in three Costa Rican species of Piper.  Biotropica: in press."
ACG organism elsewhere		"Fleming, T. H. and R. S. Hooker.  1975.  Anolis cupreus: the response of a lizard to tropical seasonality.  Ecology 56:1243-1261."
ACG study		"Fleming, T. H., C. F. Williams, F. J. Bonaccorso and L. H. Herbst.  1985.  Phenology, seed dispersal, and colonization in Muntingia calabura, a neotropical pioneer tree.  Amer. J. Botany 72:383- 391."
ACG study		"Fleming, T. H., E. R. Heithaus and W. B. Sawyer.  1977.  An experimental analysis of the food location behavior of frugivorous bats.  Ecology 58:619-627."
ACG organism elsewhere		"Fleming, T. H., E. T. Hooper and D. E. Wilson.  1972.  Three Central American bat communities: structure, reproductive cycles and movement patterns.  Ecology 53:555-569."
ACG organism elsewhere		"Flores, E. M. and C. E. Benavides 1990.  Germinaci—n y morfolog’a de la pl‡ntula de Hymenaea courbaril L. (Caesalpinaeae).  Rev. Biol. Trop. 38:91-98."
ACG organism elsewhere		"Flores, E. M., D. I. Rivera y N. M. V‡squez 1986.  Germinaci—n y desasrrolla de la pl‡ntula de Cassia grandis L. (Caesalpinioideae).  Rev. Biol. Trop. 34:289-296."
ACG study		"Flowers, R. W. 1991.  Aggregations of Cassidinae (Chrysomelidae) in Santa Rosa and Guanacaste National Parks, Costa Rica.  Biotropica 23:308-310."
ACG study		"Flowers, R. W. and D. H. Janzen 1997.  Feeding records of Costa Rican leaf beetles (Coleoptera: Chrysomelidae).  Florida Entomologist 80(3):334-366."
ACG organism elsewhere		"Forsythe, A. 1980.  Nest site and habitat selection by the social wasp, Metapolybia azteca Araujo (Hymenoptera: Vespidae).  Brenesia 17:157-162."
ACG organism elsewhere		"Foster, M. S.  1971.  Plumage and behavior of a juvenal Gray-headed Kite.  Auk 88:163-166."
ACG organism elsewhere		"Foster, M. S.  1975.  The overlap of molting and breeding in some tropical birds.  Condor 77:304-314."
ACG organism elsewhere		"Foster, M. S.  1976.  Nesting biology of the long-tailed manakin.  Wilson Bulletin 88:400-420."
ACG organism elsewhere		"Foster, M. S.  1977.  Ecological and nutritional effects of food scarcity on a tropical frugivorous bird and its fruit source.  Ecology 58:73-85."
ACG organism elsewhere		"Foster, M. S.  1977.  Odd couples in manakins, a study of social organization and cooperative breeding in Chiroxiphia linearis.  Amer. Natur. 111:845-853."
ACG organism elsewhere		"Foster, M. S.  1978.  Total frugivory in tropical passerines: a reappraisal.  Tropical Ecology 19:131-154."
ACG organism elsewhere		"Foster, M. S. and N. K. Johnson.  1974.  Notes on birds of Costa Rica.  Wilson Bulletin 86:58-63."
ACG organism elsewhere		"Foster, M. S. and R. Timm.  1976.  Tent-making by Artibeus jamaicensis (Chiroptera: Phyllostomatidae) with comments on plants used by bats for tents.  Biotropica 8:265-269."
ACG study		"Foster, M. S. and R. W. McDiarmid.  1982.  Nutritional value of the aril of Trichilia cuneata a bird-dispersed fruit.  Biotropica: in press."
ACG organism elsewhere	freshwater aquatic	"Foster, M. S. and R. W. McDiarmid.  1982.  Study of aggregative behavior of Rhinophrynus dorsalis tadpoles: design and analysis.  Herpetologica: in press."
ACG organism elsewhere		"Fournier, L. A.  y M. E. Herrera de Fournier 1986.  Fenolog’a y ecofisiolog’a de Gliricidia sepium (Jacq.) Steud., ""Madero negro"" en Ciudad Colon, Costa Rica.  Rev. Biol. Trop. 34:283-288."
ACG study		"Franke, O. F. and S. A. Stockwell 1987.  Scorpions (Arachnida) from Costa Rica.  Special Publications of the Museum, Texas Tech University, No. 25, 64 pp.  "
ACG organism elsewhere		"Frankie, G. W.  1973.  A simple field technique for marking bees with fluorescent powders.  Ann. Entomol. Soc. Am. 66:690-691."
ACG habitat elsewhere		"Frankie, G. W. 1975.  Tropical forest phenology and pollinator plant coevolution.  In Coevolution of animals and plants,  L. E. Gilbert and P. H. Raven, eds., University of Texas Press, Austin, pp. 192-209."
ACG habitat elsewhere		"Frankie, G. W. 1976.  Pollination of widely dispersed trees by animals in Central America, with an emphasis of bee pollination systems.  In Variation, breeding and conservation of tropical forest trees, J. Burley and B. T. Styles, eds., Academic Press, London, England, pp. 151-159."
ACG organism elsewhere		"Frankie, G. W. and H. G. Baker.  1974.  The importance of pollinator behavior in the reproductive biology of tropical trees.  An. Inst. Biol. Univ. Nal. Auton. Mexico 45, Ser. Botanica 1:1-10."
ACG habitat elsewhere		"Frankie, G. W. and R. E. Coville 1979.  An experimental study on the foraging behavior of selected solitary bee species in the Costa Rican dry forest.  J. Kans. Ent. Soc. 52:591-602."
ACG organism elsewhere		"Frankie, G. W. and W. A. Haber 1983.  Why bees move among mass-flowering neotropical trees.  In Handbook of experimental pollination biology, C. E. Jones and R. J. Little, eds., Van Nostrand Reinhold, Inc., New York, pp. 361-372."
ACG habitat elsewhere		"Frankie, G. W., H. G. Baker, and P. A. Opler 1974.  Comparative phenological studies of trees in tropical wet and dry forests in the lowlands of Costa Rica.  J. Ecol. 62:881-919.  "
ACG habitat elsewhere		"Frankie, G. W., H. G. Baker and P. A. Opler.  1974.  Tropical plant phenology: application for study in community ecology.  In Phenology and seasonality modeling, H. Lieth ed., Springer- Verlag, New York, pp. 287-296."
ACG organism elsewhere		"Frankie, G. W., P. A. Opler, and K. S. Bawa 1976.  Foraging behavior of solitary bees: implications for outcrossing of a neotropical forest tree species.  J. Ecol. 64:1049-1057."
ACG organism elsewhere		"Frankie, G. W., S. B. Vinson, and R. E. Coville.  1980.  Territorial behavior of Centris adani and its reproductive function in the Costa Rican dry forest (Hymenoptera: Anthophoridae).  J. Kans. Ent. Soc. 53:837-857."
ACG organism elsewhere		"Frankie, G. W., S. B. Vinson, L. E. Newstrom and J. F. Barthell 1988.  Nest site and habitat preferences of Centris bees in the Costa Rican dry forest.  Biotropica 20:301-310."
ACG organism elsewhere		"Frankie, G. W., W. A. Haber, H. G. Baker and I. Baker.  1982.  A possible chemical explanation for differential foraging by anthophorid bees on individuals of Tabebuia rosea in the Costa Rican dry forest.  Brenesia 19/20:397-405."
ACG habitat elsewhere		"Frankie, G. W., W. A. Haber, P. A. Opler and K. S. Bawa.  1983.  Characteristics and organization of the large bee pollination system in the Costa Rican dry forest.  In Handbook of experimental pollination biology, C. E. Jones and R. J. Little, eds., Van Nostrand Reinhold, Inc., New York, pp. 411-447."
ACG study		"Freeland, W. J. and D. H. Janzen.  1974.  Strategies in herbivory by mammals: the role of plant secondary compounds.  Amer. Natur. 108:269-289."
ACG study		"Freese, C. H.  1975.  Censusing Alouatta palliata, Ateles geoffroyi, and Cebus capucinus in the Costa Rican dry forest.  In Neotropical primates: field studies and conservation, R. W. Thorington and P. G. Heltne eds., National Academy of Sciences, Washington, D. C. pp. 4-9."
ACG study		"Freese, C. H.  1975.  Notes on nesting in the double-striped thick- knee (Burhinus bistriatus) in Costa Rica.  Condor 77:353-354."
ACG study	ant-plant mutualisms	"Freese, C. H.  1976.  Predation on swollen-thorn acacia ants by white- faced monkeys Cebus capucinus.  Biotropica 8:278-281."
ACG study		"Freese, C. H.  1977.  Food habits of the whited-faced capuchins Cebus capucinus L. (Primates: Cebidae) in Santa Rosa National Park, Costa Rica.  Brenesia 10/11:43-56."
ACG study		"Freese, C. H.  1978.  The behavior of white-faced capuchins (Cebus capucinus) at a dry-season waterhole.  Primates 19:275-286."
ACG study		"Freese, C. H. and J. R. Oppenheimer.  1981.  The capuchin monkeys, genus Cebus.  In Ecology and behavior of neotropical primates, A. F. Coimbra-Filho and R. A. Mittermeier eds., Academia Brasileira de Ciencias, Rio de Janeiro, Brazil, pp. 331-390."
ACG study		"Frehner, M. and E. E. Conn 1987.  The linamarin beta-glucosidase in Costa Rican wild lima beans (Phaseolus lunatus L.) is apoplastic.  Plant Physiology 84:1296-1300."
ACG study		"G‡mez, R. 1991.  Biodiversity conservation through facilitation of its sustainable use: Costa RicaÕs National Biodiversity Institute.  TREE 6:377-378."
ACG study		"G‡mez, R. 1991.  El Instituto Nacional de Biodiversidad de Costa Rica:  poniendo la biodiversidad a trabajar sostenidamente para la sociedad.  Biodiversity 7 (1&2):86-88."
ACG organism elsewhere		"Gardner, A. L., R. K. Laval and D. E. Wilson.  1970.  The distributional status of some Costa Rican bats.  J. Mamm. 51:712-729."
ACG study		"Gaston, K. J. and I. D. Gauld 1993.  How many species of pimplines (Hymenoptera: Ichneumonidae) are there in Costa Rica?  J.  Tropical Ecology 9:491-499."
ACG study		"Gaston, K. J., I. D. Gauld and P. Hanson 1996.  The size and composition of the hymenopteran fauna of Costa Rica.  Journal of Biogeography 23:105-113."
ACG study		"Gates Clarke, J. F. 1983.  A new species of Eomichla from Costa Rica (Oecophoridae).  J. Lep. Soc. 37:155-159."
ACG study	parasitoids	"Gauld, I.D. 1985. The phylogeny, classification and evolution of parasitic wasps of the subfamily Ophioninae (Ichneumonidae). Bulletin of the British Museum (Natural History) Entomology, 51: 61-185."
ACG organism elsewhere		"Gauld, I. D. 1988.  Evolutionary patterns of host utilization by ichneumonoid parasitoids (Hymenoptera: Ichneumonidae and Braconidae).  Biol. J. Linn. Soc. 35:351-377."
ACG study		"Gauld, I. D. 1988.  The species of the Enicospilus americanus complex (Hymenoptera: Ichneumonidae) in eastern North America.  Systematic Entomology 13:31-53."
ACG study	parasitoids	"Gauld, I.D. 1988b. A survey of the Ophioninae (Hymenoptera: Ichneumonidae) of tropical Mesoamerica with special reference to the fauna of Costa Rica. Bulletin of the British Museum (Natural History) Entomology, 57: 1-309."
ACG study	parasitoids	"Gauld, I. D. 1988c.  Evolutionary patterns of host utilization by ichneumonid parasitoids.  Biological Journal of the Linnean Society 35:351-377.  "
ACG study	parasitoids	"Gauld, I.D. 1991. The Ichneumonidae of Costa Rica, 1. Memoirs of the American Entomological Institute, 47: 1-589."
ACG study		"Gauld,  I. D. and D. H. Janzen 1994.  The classification, evolution and biology of the Costa Rican species of Cryptophion (Hymenoptera: Ichneumonidae).  Zoological Journal of the Linnean Society 110:297-324."
ACG study		"Gauld, I. D. and D. Lanfranco 1987.  Los gŽneros de Ophioninae de Centro y SudamŽrica.  Revista de Biolog’a Tropical 35:257-267."
ACG study		"Gauld, I. D., K. J. Gaston and D. H. Janzen 1992.  Plant allelochemicals, tritrophic interactions and the anomalous diversity of tropical parasitoids: the ÒnastyÓ host hypothesis.  Oikos 65:353-357.  "
ACG organism elsewhere		"Gentry, A. H.  1969.  A comparison of some leaf characteristics of tropical dry forest and tropical wet forest in Costa Rica.  Turrialba 19:419-428."
ACG study		"Gentry, A. H.  1978.  Anti-pollinators for mass-flowering plants?  Biotropica 10:68-69."
ACG study		"Gerhardt, K. 1993.  Tree seedling development in tropical dry abandoned pasture and secondary forest in Costa Rica.  J. Veg. Sci. 4:95-102."
ACG study		"Gerhardt, K. 1994.  Seedling development of four tree species in secondary tropical dry forest in Guanacaste, Costa Rica.  Ph.D.  Thesis, Uppsala University, Sweden."
ACG study		"Gerhardt, K. 1996.  Germination and development of sown mahogany (Swietenia macrophylla King) in secondary tropical dry forest habitats in Costa Rica.  Journal of Tropical Ecology 12:275-289. "
ACG study		"Gerhardt, K. and Dag Fredriksson 1995.  Biomass allocation by broad-leaf mahogany seedlings, Swietenia macrophylla (King), in abandoned pasture and secondary dry forest in Guanacaste, Costa Rica.  Biotropica 27(2):174-182."
ACG habitat elsewhere		"Gill, D. E. 1988.  A naturalist's guide to the OTS Palo Verde Field Station, el Refugio de Fauna Silvestre ""Dr. Rafael Lucas Rodriguez Caballero"", and Lomas Barbudal Biological Reserve, Guanacaste Province, Costa Rica.  Home published, D. E. Gill, Department of Zoology, University of Maryland, College Park, Maryland 20742, 107 pp.  "
ACG organism elsewhere		"Gill, G. E., R. T. Fowler and S. A. Mori 1998.  Pollination biology of Symphonia globulifera (Clusiaceae) in central French Guiana.  Biotropica 30:139-144"
ACG organism elsewhere		"Glander, K. E.  1975.  Habitat and resource utilization: an ecological view of social organization in mantled howling monkeys.  University of Chicago, Ph.D. thesis, 267 pp."
ACG organism elsewhere		"Glander, K. E. 1975.  Habitat description and resource utilization: a preliminary report on mantled howling monkey ecology.  In Socioecology and psychology of primates, R. H. Tuttle, ed., Mouton, The Hague/Paris, pp. 37-57."
ACG study		"Glander, K. E.  1977.  Poison in a monkey's Garden of Eden.  Nat. Hist. 86:34-41."
ACG study		"Glander, K. E.  1978.  Drinking from arboreal water sources by mantled howling monkeys (Alouatta palliata Gray).  Folia primat. 29:206- 217."
ACG study		"Glander, K. E.  1978.  Howling monkey feeding behavior and plant secondary compounds: a study of strategies.  In Ecology of arboreal folivores, G. G. Montgomery ed., Smithsonian Institution Press, Washington, D. C., pp. 561-573."
ACG organism elsewhere		"Glander, K. E.  1979.  Feeding associations between howling monkeys and basilisk lizards.  Biotropica 11:235-236."
ACG study		"Glander, K. E.  1980.  Reproduction and population growth in free-ranging mantled howling monkeys.  Amer. J. Phy. Anth. 53:25-36."
ACG study		"Glander, K. E.  1981.  Feeding patterns in mantled howling monkeys.  In Foraging behavior, A. C. Kamil and T. D. Sargent eds., Garland Press, New York, pp. 231-257."
ACG study		"Gomez, L. D. 1977. Un Melocactus Link & Otto (Cactaceae) nuevo para Centroamerica. Brenesia 10/11:127-133."
ACG study		"Gomez P., L. D. 1996.  Basidiomicetes de Costa Rica: Xerocomus, Chalciporus, Pulveroboletus, Boletellus, Xanthoconium (Agaricales: Boletaceae).  Rev. Biol. Trop. 44(Supple.4): 59-89.  "
ACG habitat elsewhere		"Gomez P., L. D.  (fecha?).  Bibiliograf’a geol—gica y paleontol—gica de Centroamerica y el Caribe.  Departamento de Histor’a Natural, Museo Nacional de Costa Rica, San JosŽ, Costa Rica.  123 pp."
ACG study		"Good, D. A. and D. B. Wake 1993.  Systematic studies of the Costa Rican moss salamanders, genus Nototriton, with descriptions of three new species.    Herpetological Monographs 7:131-159. "
ACG study		"Goodnight, C. J. and M. L. Goodnight.  1983.  Opiliones of the family phalangodidae found in Costa Rica.  J. Arachnol., 11:201-242."
ACG study		"Gorton, R. E.  1978.  Observations on the nesting behavior of Mischocyttarus immarginatus (Rich.) (Vespidae: Hymenoptera) in a dry forest in Costa Rica.  Insectes Sociaux 25:197-204."
ACG organism elsewhere		"Grant Trigueros, R.  1977.  Produccion camparada entre hibrido Pardo Suizo y Brahman encastado.  Tesis de grado de ing. agr.  Universidad de C. R. Fac. de Agronomia."
ACG organism elsewhere		"Greene, H. W. and R. W. McDiarmid.  1981.  Coral snake mimcry: does it occur.  Science 213(4513):1207-1212."
ACG organism elsewhere		"Gudmundson, L.  1983.  Hacendados, politicos y precaristas:  la ganaderia y el Latifundismo Guanacasteco 1800-1950.  Editorial Costa Rica, San Jose, 255 pp."
ACG organism elsewhere		"Haber, W. A. 1993.  Seasonal migration of monarchs and other butterflies in Costa Rica.  In Biology and conservation of the monarch butterfly.  Los Angeles Co. Mus. Nat. Hist, Los Angeles.  pp. 201-207."
ACG organism elsewhere		"Haber, W. A. and G. W. Frankie 1989.  A tropical hawkmoth community: Costa Rican dry forest Sphingidae.  Biotropica 21:155-172. "
ACG organism elsewhere		"Haber, W. A. and G. W. Frankie.  Year?  Pollination ecology of Luehea (Tiliaceae) in Costa Rican dry forest: significance of adapted and non-adapted pollinators.  Submitted to Oecologia."
ACG organism elsewhere		"Hagnauer, H. R.  1977.  Die Einrichtung einer Herde mit kombiniertem Zuchtziel auf Fleisch und Milch in den Tropen.  Tesis de grado Escuela Politecnica Federal, Zuerich, Suiza."
ACG organism elsewhere		"Hagnauer, W. et al.  1978.  Die bedeutung der europaischen zweinutzungsrassen fur die entwicklung der rindviehproduktion in den tropen am beispiel lateinamerikas.  Landw. Mbl. 56:269-279."
ACG organism elsewhere		"Hamilton, L. D. and R. D. Montgomerie 1989.  Population demography and sex ratio in a neotropical damselfly (Odonata: Coenagrionidae) in Costa Rica.  Journal of Tropical Biology 5:159-171."
ACG habitat elsewhere		"Harris, S. A., A. M. Neumann and P. A. D. Stouse, Jr.  1971.  The major soil zones of Costa Rica.  Soil Sci. 112:439-447."
ACG study		"Harrison, J. V.  1953.  The geology of the Santa Elena peninsula in Costa Rica, Central America.  Proc. Seventh Pacific Science Congress, vol. 2, pp. 102-114."
ACG habitat elsewhere		"Harrison, J. V.  1956.  East and west lines in Costa Rica.  XX Congreso Geologico Interamericano, Mexico.  Resume, p. 281-282."
ACG organism elsewhere		"Hatheway, W. H. and H. G. Baker.  1970.  Reproductive strategies in Pithecellobium and Enterolobium - further information.  Evolution 24:253-254."
ACG habitat elsewhere		"Heithaus, E. R.  1973.  Species diversity and resource partitioning in four neotropical plant-pollinator communities.  Ph.D. Thesis.  Department of Biological Sciences, Stanford University."
ACG organism elsewhere		"Heithaus, E. R.  1974.  The role of plant-pollinator interactions in determining community structure.  Ann. Mo. Bot. Gard. 61:675- 691."
ACG habitat elsewhere		"Heithaus, E. R. 1979.  Community structure of neotropical flower visiting bees and wasps: diversity and phenology.  Ecology 60:190-202."
ACG habitat elsewhere		"Heithaus, E. R. 1979.  Flower visitation records and resource overlap of bees and wasps in northwest Costa Rica.  Brenesia 16:9-52."
ACG habitat elsewhere		"Heithaus, E. R. 1979.  Flower-feeding specialization in wild bee and wasp communities in seasonal neotropical habitats.  Oecologia 42:179-194."
ACG organism elsewhere		"Heithaus, E. R. 1982.  Coevolution of bats and plants.  In Biology of bats, T. Kunz ed., Plenum Press, New York, pp. 327-367."
ACG study		"Heithaus, E. R. and T. H. Fleming.  1978.  Foraging movements of a frugivorous bat, Carollia perspicillata (Phyllostomatidae).  Ecol. Monogr. 48:127-143."
ACG organism elsewhere		"Heithaus, E. R., E. Stashko and P. K. Anderson.  1982.  Cumulative effects of plant-animal interactions on seed production by Bauhinia ungulata, a neotropical legume.  Ecology (in press)."
ACG organism elsewhere		"Heithaus, E. R., P. A. Opler and H. G. Baker.  1974.  Bat activity and pollination of Bauhinia pauletia: plant-pollinator coevolution.  Ecology 55:412-419. "
ACG organism elsewhere		"Heithaus, E. R., T. H. Fleming and P. A. Opler.  1975.  Foraging patterns and resource utilization in seven species of bats in a seasonal tropical forest.  Ecology 56:841-854."
ACG organism elsewhere		"Heltne, P. G., D. C. Turner and N. J. Scott, Jr.  1975.  Comparison of census data on Alouatta palliata from Costa Rica and Panama.  In Neotropical primates: field studies and conservation, R. W. Thorington and P. G. Heltne eds., National Academy of Sciences, Washington, D. C., pp. 10-19."
ACG study		"Heppner, J. B. 1980.  A new Parochromolopis (Epermeniidae) from Costa Rica.  Journal of the Lepidopterists Society 34:48-50."
ACG study		"Herbst, L. H.  1986.  The role of nitrogen from fruit pulp in the nutrition of the frugivorous bat  Carollia perspicillata.  Biotropica 18(1):39-44."
ACG organism elsewhere		"Hernandez, H. M. 1989.  Systematics of Zapoteca (Leguminosae).  Annals of the Missouri Botanical Garden 76:781-862."
ACG study		"Herrera, C. M. 1989.  Vertebrate frugivores and their interaction with invertebrate fruit predators: supporting evidence from a Costa Rican dry forest.  Oikos  54:185-188."
ACG organism elsewhere		"Herrero, M. V. and G. V. Odell 1988.  Algunas caracter’sticas de los venenos y secreciones digestivas de Aphonopelma seemanni y Sphaerobothria hoffmanni (Araneae: Theraphosidae) de Costa Rica.  Rev. Biol. Trop. 36:241-246."
ACG organism elsewhere	freshwater aquatic	"Heyer, W. R., R. W. McDiarmid and D. L. Weigmann.  1975.  Tadpoles, predation and pond habitats in the tropics.  Biotropica 7:100- 111."
ACG study		"Hodges, R. W. 1985.  A new species of Dichomeris from Costa Rica (Lepidoptera: Gelechiidae).  Proceedings of the Entomological Society of Washington 87:456-459."
ACG habitat elsewhere		"Holdridge, L. R., W. C. Grenke, W. H. Hatheway, T. Liang and J. A. Tosi.  1971.  Forest environments in tropical life zones: a pilot study.  Pregamon Press, Oxford."
ACG study		"Holzenthal, R. W. 1988.  New species and records of Costa Rican Polycentropus (Trichoptera: Polycentropodidae).  Journal of the New York Entomological Society 96:332-344."
ACG study		"Holzenthal, R. W. 1988.  Systematics of neotropical Triplectides (Trichoptera: Leptoceridae).  Annals of the Entomological Society of America 81:187-208."
ACG study		"Howard, F.W. and M. A. Solis 1989.  Distribution, life history, and host plant relationships of mahogany webworm, Macalla thyrsisalis (Lepidoptera: Pyralidae).  Florida Entomologist 72:469-479."
ACG study		"Howe, H. F. and G. A. Vander Kerckhove.  1979.  Fecundity and seed dispersal of a tropical tree.  Ecology 60:180-189."
ACG study		"Howell, D. J.  1974.  Acoustic behavior and feeding in glossophagine bats.  J. Mammalogy 55:293-308."
ACG study		"Howell, D. J.  1976.  Weight loss and temperature regulation in clustered versus individual Glossophaga .  Comp. Biochem. Physiol. 53A:197-199."
ACG study		"Howell, D. J.  1977.  Time sharing and body partitioning in bat-plant pollination systems.  Nature 270:509-510."
ACG organism elsewhere		"Howell, D. J. and D. Burch.  1974.  Food habits of some Costa Rican bats.  Rev. Biol. Trop. 21:281-294."
ACG study		"Hubbell, S. P.  1979.  Tree dispersion, abundance, and diversity in a tropical dry forest.  Science 203:1299-1309."
ACG study		"Hubbell, S. P.  1980.  Seed predation and the coexistence of tree species in tropical forests.  "
ACG study		"Hubbell, S. P. and L. K. Johnson.  1977.  Competition and nest spacing in a tropical stingless bee community.  Ecology 58:949-963."
ACG study		"Hubbell, S. P. and L. K. Johnson.  1978.  Comparative foraging behavior of six stingless bee species exploiting a standardized resource.  Ecology 59:1123-1136."
ACG study		"Hubbell, S. P. et al.  1979.  Foraging by bucket-brigade in leaf- cutter ants.  Biotropica 12:210-213."
ACG organism elsewhere		"Hunter, J. R. 1987.  Reforestation with Bombacopsis quinatum (Jaq.) Dugand (Bombacaceae) in Costa Rica by means of vegetative reproduction.  Rev. Biol. Trop. 35:195-201."
ACG study	freshwater aquatic	"Jackson, J. K. and B. W. Sweeney 1995.  Egg and larval development times for 35 species of tropical stream insects from Costa Rica.  Journal of the North American Benthological Society 14:115-130. "
ACG study	freshwater aquatic	"Jackson, J. K. and B. W. Sweeney 1995.  Present status and future directions of tropical stream research.  Journal of the North American Benthological Society 14:5-11."
ACG organism elsewhere	ant-plant mutualisms	"Janzen, D. H.  1966.  Coevolution of mutualism between ants and acacias in Central America.  Evolution 20:249-275."
ACG organism elsewhere	ant-plant mutualisms	"Janzen, D. H.  1967.  Fire, vegetation structure, and the ant x acacia interaction in Central America.  Ecology 48:26-35."
ACG habitat elsewhere		"Janzen, D. H.  1967.  Synchronization of sexual reproduction of trees with the dry season in Central America.  Evolution 21:620-637."
ACG habitat elsewhere		"Janzen, D. H.  1967.  Why mountain passes are higher in the tropics.  Amer. Natur. 101:233-249."
ACG habitat elsewhere		"Janzen, D. H.  1968.  Host plants as islands in evolutionary and contemporary time.  Amer. Natur.  102:592-595."
ACG organism elsewhere		"Janzen, D. H.  1968.  Reproductive behavior in the Passifloraceae and some of its pollinators in Central America.  Behavior 32:33-48."
ACG organism elsewhere	ant-plant mutualisms	"Janzen, D. H.  1969.  Birds and the ant x acacia interaction in Central America, with notes on birds and other myrmecophytes.  Condor 71:240-256."
ACG organism elsewhere		"Janzen, D. H.  1969.  Seed-eaters versus seed size, number, toxicity and dispersal.  Evolution 23:1-27."
ACG organism elsewhere		"Janzen, D. H.  1970.  Altruism by coatis in the face of predation by Boa constrictor.  J. Mammalogy 51:387-389."
ACG habitat elsewhere		"Janzen, D. H.  1970.  Herbivores and the number of tree species in tropical forests.  Amer. Natur. 104:501-528."
ACG organism elsewhere		"Janzen, D. H.  1970.  Jacquinia pungens, a heliophile from the understory of tropical deciduous forest.  Biotropica 2:112-119."
ACG habitat elsewhere		"Janzen, D. H.  1970.  The unexploited tropics.  Bull. Ecol. Soc. Amer. 51:4-7."
ACG organism elsewhere		"Janzen, D. H.  1971.  Escape of Cassia grandis L. beans from predators in time and space.  Ecology 52:964-979."
ACG organism elsewhere		"Janzen, D. H.  1971.  Escape of juvenile Dioclea megacarpa (Leguminosae) vines from predators in a deciduous tropical forest.  Amer. Natur. 105:97-112."
ACG habitat elsewhere		"Janzen, D. H.  1971.  Seed predation by animals.  Ann. Rev. Ecol. Syst.  2:465-492."
ACG organism elsewhere		"Janzen, D. H.  1971.  The fate of Scheelea rostrata fruits beneath the parent tree: predispersal attack by bruchids.  Principes 15:89- 101."
ACG organism elsewhere		"Janzen, D. H.  1972.  Escape in space by Sterculia apetala seeds from the bug Dysdercus fasciatus in a Costa Rican deciduous forest.  Ecology 53:350-361."
ACG habitat elsewhere		"Janzen, D. H.  1972.  Interfield and interplant spacing in tropical insect control.  Proceedings Annual Tall Timbers Conf. on ecol. animal control by habitat management.  February 24-25, 1972:1-6."
ACG habitat elsewhere		"Janzen, D. H.  1972.  The uncertain future of the tropics.  Natural History 9:80-89. "
ACG habitat elsewhere		"Janzen, D. H.  1972.  Whither tropical ecology?  In Challenging biological problems, J. A. Behnke, ed., Oxford Univ. Press New York, pp. 281-296."
ACG organism elsewhere		"Janzen, D. H.  1973.  Comments on host-specificity of tropical herbivores and its relevance to species richness.  In Taxonomy ecology, V. H. Heywood ed., Systematics Assoc. Spec. vol. no. 5, Academic Press, London pp. 201-211."
ACG study		"Janzen, D. H.  1973.  Community structure of secondary compounds in plants.  Pure and Applied Chemistry 34:529-538."
ACG organism elsewhere	ant-plant mutualisms	"Janzen, D. H. 1973.  Dissolution of mutualism between Cecropia and Azteca ants.  Biotropica 5:15-28."
ACG habitat elsewhere		"Janzen, D. H.  1973.  Host plants as islands.  II.  Competition in evolutionary and contemporary time.  Amer. Natur. 107:786-790."
ACG habitat elsewhere		"Janzen, D. H.  1973.  Sweep samples of tropical foliage insects: description of study sites, with data on species abundances and size distributions.  Ecology 54:659-686."
ACG habitat elsewhere		"Janzen, D. H.  1973.  Sweep samples of tropical foliage insects:  effects of seasons, vegetation types, elevation, time of day, and insularity.  Ecology 54:687-708."
ACG habitat elsewhere		"Janzen, D. H.  1973.  Tropical Agroecosystems.  These habitats are misunderstood by the temperature zones, mismanaged by the tropics.  Science 182:1212-1219."
ACG organism elsewhere	ant-plant mutualisms	"Janzen, D. H.  1974.  Swollen-thorn acacias of Central America.  Smithsonian Contributions to Botany, no. 13, 131 pp."
ACG organism elsewhere		"Janzen, D. H.  1974.  The deflowering of Central America.  Natural History 83:48-53."
ACG study		"Janzen, D. H.  1974.  The role of the seed predator guild in a tropical deciduous forest, with some reflections on tropical biological control.  In Biology in pest and disease control, D. P. Jones and M. E. Solomon eds., Blackwell, Oxford, 398 pp."
ACG study		"Janzen, D. H.  1975.  Behavior of Hymenaea courbaril when its predispersal seed predator is absent.  Science 189:145-147."
ACG study		"Janzen, D. H.  1975.  Ecology of plants in the tropics.  Edward Arnold, London, 66 pp."
ACG study	parasitoids	"Janzen, D. H.  1975.  Interactions of seeds and their insect predators/parasitoids in a tropical deciduous forest.  In Evolutionary strategies of parasitic insects and mites.  P. W. Price ed., Plenum Press, New York, pp. 154-186."
ACG study		"Janzen, D. H.  1975.  Intra- and inter-habitat variations in Guazuma ulmifolia (Sterculiaceae) seed predation by Amblycerus cistelinus (Bruchidae) in Costa Rica.  Ecology 56(4):1009-1013."
ACG study	ant-plant mutualisms	"Janzen, D. H.  1975.  Pseudomyrmex nigropilosa: a parasite of a mutualism.  Science 188:936-937."
ACG habitat elsewhere		"Janzen, D. H. 1976.  Sweep samples of tropical deciduous forest foliage-inhabiting insects: seasonal changes and inter-field differences in adult bugs and beetles.  Revista de Biolog’a Tropical 24:149-161."
ACG study		"Janzen, D. H.  1976.  The depression of reptile biomass by large herbivores.  Amer. Natur. 110:371-400."
ACG habitat elsewhere		"Janzen, D. H.  1976.  The microclimate differences between a deciduous forest and adjacent riparian forest in Guanacaste Province, Costa Rica.  Brenesia, 8:29-33."
ACG study		"Janzen, D. H.  1976.  The occurrence of the human warble fly (Dermatobia hominis) in the dry deciduous forest lowlands of Costa Rica.  Biotropica 8:210."
ACG study		"Janzen, D. H.  1976.  Two patterns of pre-dispersal seed predation by insects on Central American deciduous forest trees.  In Tropical trees: variation, breeding and conservation, J. Burley and B. T. Styles eds., Academic Press, London, pp. 179-188."
ACG organism elsewhere		"Janzen, D. H. 1976.  Why bamboos wait so long to flower.  Annual Review of Ecology and Systematics 7:347-391."
ACG organism elsewhere		"Janzen, D. H. 1976.  Why do bamboos wait so long to flower?  In Tropical trees.  Variation, breeding and conservation, J. Burley and B. T. Styles, eds.,  Academic Press, London, pp. 135-139."
ACG study		"Janzen, D. H.  1976.  Why tropical trees have rotten cores.  Biotropica 8:110."
ACG study		"Janzen, D. H.  1977.  A note on optimal mate selection by plants.  Amer. Natur. 111:365-371."
ACG study		"Janzen, D. H.  1977.  Additional land at what price?  Responsible use of the tropics in a food-population confrontation.  Proc. Am. Phytopath. Soc. Vol. 3, 1976."
ACG organism elsewhere		"Janzen, D. H.  1977.  Developmental demography of Bauhinia pauletia.  Brenesia 12/13:105-111."
ACG study		"Janzen, D. H.  1977.  How southern cowpea weevil larvae (Bruchidae: Callosobruchus maculatus) die on nonhost seeds.  Ecology 58:921- 927."
ACG study		"Janzen, D. H.  1977.  Intensity of predation of Pithecellobium saman (Leguminosae) seeds by Merobruchus columbinus and Stator limbatus (Bruchidae) in Costa Rican deciduous forest.  Tropical Ecology 18:162-176."
ACG study		"Janzen, D. H.  1977.  Promising directions of study in tropical animal- plant interactions.  Ann. Mo. Bot. Gard. 64:706-736."
ACG study		"Janzen, D. H.  1977.  The interaction of seed predators and seed chemistry.  In Colloques Internationauz de C.N.R. S., V. Labeyrie ed., Paris, pp. 415-428."
ACG study		"Janzen, D. H.  1977.  Use of Santa Rosa National Park and Corcovado National Park, Costa Rica, by biologists.  Mimeographed hand- out, 25 pp."
ACG organism elsewhere		"Janzen, D. H.  1977.  Variation in seed weight in Costa Rican Cassia grandis (Leguminosae).  Tropical Ecology 18:177-186."
ACG study		"Janzen, D. H.  1977.  Why are there so many species of insects?  Proc. V International Congress of Entomology, Washington, D. C.  1976:84-94."
ACG study		"Janzen, D. H.  1977.  Why don't ants visit flowers?  Biotropica 9:252."
ACG study		"Janzen, D. H.  1977.  Why fruits, rot, seeds mold, and meat spoils.  Amer. Natur. 111:691-713."
ACG study		"Janzen, D. H.  1978.  Complications in interpreting the chemical defenses of trees against tropical arboreal plant-eating vertebrates.  In Ecology of arboreal folivores, G. G. Montgomery ed., Smithsonian Institution Press, pp. 73-84."
ACG organism elsewhere		"Janzen, D. H.  1978.  Defoliation heterogeneity over Costa Rican highways.  Environmental Conservation 5:246."
ACG study		"Janzen, D. H.  1978.  Inter- and Intra-crop variation in seed weight of Costa Rican Ateleia herbert-smithii Pitt. (Leguminosae).  Brenesia 14/15:311-323."
ACG habitat elsewhere		"Janzen, D. H.  1978.  Predation intensity on eggs on the ground in two Costa Rican forests.  Amer. Midl. Natur. 100:467-470."
ACG organism elsewhere		"Janzen, D. H.  1978.  Reduction of seed predation on Bauhinia pauletia (Leguminosae) through habitat destruction in a Costa Rican deciduous forest.  Brenesia 14/15:325-335."
ACG study		"Janzen, D. H.  1978.  Seeding patterns of tropical trees.  In Tropical trees as living systems, P. B. Tomlinson and M. H. Zimmerman eds., Cambridge University Press, New York, pp. 83-128."
ACG study		"Janzen, D. H.  1978.  The ecology and evolutionary biology of seed chemistry as related to seed predation.  In Biochemical aspects of plant and animal coevolution, J. B. Harborne ed., Academic Press, London, pp. 163-206."
ACG study		"Janzen, D. H.  1979.  Ecology of tropical regions.  In Plants, people and environment, P. E. Kaufman and J. D. LaCroix, eds., Macmillan, New York, pp. 111-140."
ACG study		"Janzen, D. H. 1979.  How many babies do figs pay for babies?  Biotropica 11:48-50."
ACG study		"Janzen, D. H.  1979.  How many parents do wasps from a fig have?  Biotropica 11:127-129."
ACG study		"Janzen, D. H.  1979.  How to be a fig.  Annual Review of Ecology and Systematics 10:13-51."
ACG study		"Janzen, D. H.  1979.  Natural history of Phelypera distigma (Boheman), Curculionidae, a Costa Rican defoliator of Guazuma ulmifolia Lam. (Sterculiaceae).  Brenesia 16:213-219."
ACG study		"Janzen, D. H. 1979.  New horizons in the biology of plant defenses.  In Herbivores.  Their interaction with secondary plant metabolites, G. A. Rosenthal and D. H. Janzen, eds.,  Academic Press, New York, pp. 331-350."
ACG study		"Janzen, D. H. 1979.  Puede usarse la expresion ""seleccion r y K"" en la ecolog’a de los insectos?  In Topicos de ecolog’a contempor‡nea, J. Rabinovich and G. Halffter, eds.,  Fondo de cultura econ—mica, Mexico, pp. 129-136."
ACG study		"Janzen, D. H.  1979.  Why food rots.  Natural History Mag. 88:60-66."
ACG study		"Janzen, D. H.  1980.  Heterogeneity of potential food abundance for tropical small land birds.  In Migrant birds in the neotropics, A. Keast and E. S. Morton, eds., Smithsonian Institution Press, Washington, D. C.  pp. 545-552."
ACG study		"Janzen, D. H.  1980.  Specificity of seed-attacking beetles in a Costa Rican deciduous forest.  Journal of Ecology 68:929-952."
ACG study		"Janzen, D. H.  1980.  Two potential coral snake mimics in a tropical deciduous forest.  Biotropica 12:77-78."
ACG study		"Janzen, D. H.  1980.  Use of Santa Rosa National Park and Corcovado National Park, Costa Rica, by biologists.  34 pp.  Mimeo."
ACG study		"Janzen, D. H.  1981.  Bee arrival at two Costa Rican female Catasetum orchid inflorescences, and a hypothesis on euglossine population structure.  Oikos 36:177-183."
ACG study		"Janzen, D. H.  1981.  Differential visitation of Catasetum orchid male and female flowers.  Biotropica 13 (supplement):77."
ACG study		"Janzen, D. H.  1981.  Digestive seed predation by a Costa Rican Baird's tapir.  Biotropica 13 (supplement):59-63."
ACG study		"Janzen, D. H.  1981.  Enterolobium cyclocarpum seed passage rate and survival in horses, Costa Rican Pleistocene seed dispersal agents.  Ecology 62:593-601."
ACG study		"Janzen, D. H.  1981.  Evolutionary physiology of personal defense.  In Physiological Ecology, C. R. Townsend and P. Calow, eds., Blackwell, Oxford, England, p. 145-164."
ACG study		"Janzen, D. H.  1981.  Ficus ovalis seed predation by an orange-chinned parakeet (Brotogeris jugularis) in Costa Rica.  The Auk 98:841-844."
ACG study		"Janzen, D. H.  1981.  Guanacaste tree seed-swallowing by Costa Rican range horses.  Ecology 62:587-592."
ACG study		"Janzen, D. H.  1981.  Lectins and plant-herbivore interactions.  Recent Advances in Phytochemistry 15:241-258."
ACG study		"Janzen, D. H.  1981.  Patterns of herbivory in a tropical deciduous forest.  Biotropica 13:271-282."
ACG study		"Janzen, D. H.  1981.  The defenses of legumes against herbivores.  In Advances in legume systematics, R. M. Polhill and P. H. Raven, eds., Royal Botanic Gardens, Kew, England, pp. 951-977."
ACG study	parasitoids	"Janzen, D. H. 1981.  The peak of North American ichneumonid species-richness lies between 38¡ and 42¡ N.  Ecology 62:532-537."
ACG study		"Janzen, D. H.  1982.  Attraction of Liomys mice to horse dung and the extinction of this response.  Animal Behaviour 30:483-489."
ACG study		"Janzen, D. H.  1982.  Cenizero tree (Leguminosae: Pithecellobium saman) delayed fruit development in Costa Rican deciduous forests.  American Journal of Botany 69:1269-1276."
ACG study		"Janzen, D. H. 1982.  Citation classic:  Seed predation by animals.  Current Contents 13 (10):18."
ACG study		"Janzen, D. H.  1982.  Cleogonus weevil seed predation on Andira can be predicted by fruit punctures.  Brenesia 19/20:591-593."
ACG study		"Janzen, D. H.  1982.  Differential seed survival and passage rates in cows and horses, surrogate Pleistocene dispersal agents.  Oikos 38:150-156."
ACG study		"Janzen, D. H.  1982.  Ecological distribution of chlorophyllous developing embryos among perennial plants in a tropical deciduous forest.  Biotropica 14:232-236."
ACG study		"Janzen, D. H.  1982.  Fruit traits, and seed consumption by rodents, of Crescentia alata (Bignoniaceae) in Santa Rosa National Park, Costa Rica.  American Journal of Botany 69:1258-1268."
ACG study		"Janzen, D. H.  1982.  Fruits for famished mammoths.  Garden 1982(July- August):12-14, 32."
ACG study		"Janzen, D. H.  1982.  Guia para la identificacion de mariposas nocturnas de la familia Saturniidae del Parque Nacional Santa Rosa, Guanacaste, Costa Rica.  Brenesia 19/20:255-299."
ACG study		"Janzen, D. H.  1982.  Horse response to Enterolobium cyclocarpum (Leguminosae) fruit crop size in a Costa Rican deciduous forest pasture.  Brenesia 19/20:209-219."
ACG study		"Janzen, D. H.  1982.  How and why horses open Crescentia alata fruits.  Biotropica 14:149-152."
ACG study		"Janzen, D. H.  1982.  Investigaciones biologicas en el Parque Nacional Santa Rosa y el Parque Nacional Corcovado, Costa Rica.  In Primer Simposio de Parques Nacionales y Reservas Biologicas, Serie Miscellenea No. 5, Universidad Estatal a Distancia, San Jose, Costa Rica, pp. 126-138."
ACG study		"Janzen, D. H.  1982.  Natural history of guacimo fruits (Sterculiaceae: Guazuma ulmifolia) with respect to consumption by large mammals.  American Journal of Botany 69:1240-1250."
ACG study		"Janzen, D. H.  1982.  Removal of seeds from horse dung by tropical rodents: influence of habitat and amount of dung.  Ecology 63:1887-1900."
ACG study		"Janzen, D. H.  1982.  Seed removal from fallen guanacaste fruits (Enterolobium cyclocarpum) by spiny pocket mice (Liomys salvini).  Brenesia 19/20:425-429."
ACG study		"Janzen, D. H.  1982.  Seeds in tapir dung in Santa Rosa National Park, Costa Rica.  Brenesia 19/20:129-135."
ACG study		"Janzen, D. H.  1982.  Simulation of Andira fruit pulp removal by bats reduces seed predation by Cleogonus weevils.  Brenesia 19/20:165-170."
ACG study		"Janzen, D. H. 1982.  The relationship of basic research to the development of the technologies that will sustain tropical forest resources. 35 page report to USA Office of Technology Assessment."
ACG study		"Janzen, D. H. 1982.  Variation in average seed size and fruit seediness in a fruit crop of a guanacaste tree (Leguminosae:  Enterolobium cyclocarpum).  American Journal of Botany 69:1169-1178."
ACG study		"Janzen, D. H. 1982.  Weight of seeds in 1-3 seeded fruits of Lonchocarpus costaricensis (Leguminosae), a Costa Rican wind-dispersed tree.  Brenesia 19/20:363-368."
ACG study		"Janzen, D. H.  1982.  Wild plant acceptability to a captive Costa Rican Baird's tapir.  Brenesia 19/20:99-128."
ACG study		"Janzen, D. H.  1983.  Dispersal of seeds by vertebrate guts.  In Coevolution, D. J. Futuyma and M. Slatkin, eds., Sinauer Associates, Sunderland, Massachusetts, pp. 232-262."
ACG study		"Janzen, D. H. 1983.  Erblichia odorata Seem. (Turneraceae) is a larval host plant of Eueides procula vulgiformis (Nymphalidae:  Heliconiini) in Santa Rosa National Park, Costa Rica.  Journal of the Lepidopterists' Society 37:70-77."
ACG study		"Janzen, D. H. 1983.  Food webs:  who eats what, why, how, and with what effects in a tropical forest?  In Tropical Rain Forest Ecosystems, F. B. Golley, ed.,  Elsevier Scientific Publishing Company, Amsterdam, pp. 167-182."
ACG study		"Janzen, D. H. 1983.  Larval biology of Ectomyelois muriscis (Pyralidae:  Phycitinae), a Costa Rican fruit parasite of Hymenaea courbaril (Leguminosae:  Caesalpinioideae).  Brenesia 21:387-393."
ACG study		"Janzen, D. H.  1983.  No park is an island: increase in interference from outside as park size decreases.  Oikos 41:402-410."
ACG study		"Janzen, D. H.  1983.  Physiological ecology of fruits and their seeds.  Encyclopedia of Plant Physiology, New Series, Volume 12C, Physiological Plant Ecology III (O. L. Lange, P. S. Nobel, C. B. Osmond, and H. Ziegler eds.)  Springer-Verlag Berlin, Heidelberg pp. 625-655."
ACG study		"Janzen, D. H.  1983.  Seasonal change in abundance of large nocturnal dung beetles (Scarabaeidae) in a Costa Rican deciduous forest and adjacent horse pasture.  Oikos 41:274-283."
ACG study		"Janzen, D. H.  1983.  Seed and pollen dispersal by animals: convergence in the ecology of contamination and sloppy harvest.  Biological Journal of the Linnean Society 20:103-113."
ACG study		"Janzen, D. H. 1983.  The Pleistocene hunters had help.  American Naturalist 121:598-599."
ACG study		"Janzen, D. H. 1984.  Costa Rican parks:  a researcher's view.  The Nature Conservancy News 34 (1):24-25."
ACG study		"Janzen, D. H. 1984.  Dispersal of small seeds by big herbivores:  foliage is the fruit.  American Naturalist 123:338-353."
ACG study		"Janzen, D. H. 1984.  Natural History of Hylesia lineata (Saturniidae:  Hemileucinae) in Santa Rosa National Park, Costa Rica.  Journal of the Kansas Entomological Society 57:490-514."
ACG study		"Janzen, D. H. 1984.  The most coevolutionary animal of them all.   Crafoord Lectures, Royal Swedish Academy of Sciences, Stockholm, Sweden, 1984,  pp. 2-20."
ACG study		"Janzen, D. H.  1984.  Two ways to be a tropical big moth: Santa Rosa saturniids and sphingids.  Oxford Surveys in Evolutionary Biology 1:85-140."
ACG study		"Janzen, D. H.  1984.  Weather-related color polymorphism of Rothschildia lebeau (Saturniidae).  Bulletin of the Entomological Society of America 30(2):16-20."
ACG study		"Janzen, D. H.  1985.  A host plant is more than its chemistry.  Illinois Natural History Bulletin 33:141-174."
ACG study		"Janzen, D. H. 1985.  Coevolution as a process.  What parasites of animals and plants do not have in common.  In Coevolution of Parasitic Arthropods and Mammals, K. C. Kim, ed.,  John Wiley and Sons, New York, pp. 83-99."
ACG study		"Janzen, D. H. 1985.  Degradation of tropical forests:  a dialogue.  Bulletin of the Entomological Society of America 31 (spring):12-13."
ACG study		"Janzen, D. H. 1985.  Forward to reprinting of Thomas Belt 1874.  In The Naturalist in Nicaragua, The University of Chicago Press, Chicago, pp. v-vii."
ACG study		"Janzen, D. H.  1985.  Mangroves: where's the understory?  Journal of Tropical Ecology 1:89-92."
ACG study		"Janzen, D. H. 1985.  On ecological fitting.  Oikos 45:308-310."
ACG study		"Janzen, D. H.  1985.  Spondias mombin is culturally deprived in megafauna-free forest.  Journal of Tropical Ecology 1:131-155."
ACG study		"Janzen, D. H. 1985.  The natural history of mutualisms.  In The Biology of Mutualism, D. H. Boucher, ed.,  Croom Helm, London, pp. 40-99."
ACG study		"Janzen, D. H. 1986.  A tropical Christmas catalogue.  Bulletin of the Ecological Society of America 67:299."
ACG study		"Janzen, D. H. 1986.  Biogeography of an unexceptional place:  what determines the saturniid and sphingid moth fauna of Santa Rosa National Park, Costa Rica, and what does it mean to conservation biology?  Brenesia 25/26:51-87."
ACG study		"Janzen, D. H. 1986.  Blurry catastrophes.  Oikos 47:1-2."
ACG organism elsewhere		"Janzen, D. H. 1986.  Disruption and recovery of intra-crown fruiting synchrony in a Cassia grandis (Leguminosae) tree.  Brenesia 25/26:179-185."
ACG study		"Janzen, D. H. 1986.  Does a hectare of cropland equal a hectare of wild host plant?  American Naturalist 128:147-149."
ACG study		"Janzen, D. H. 1986.  Extinction:  the next wave.  Science News 130:259."
ACG study		"Janzen, D. H. 1986.  Guanacaste National Park - a tropical Christmas catalog.  Biotropica 18:272."
ACG study		"Janzen, D. H. 1986.  Guanacaste National Park:  tropical ecological and cultural restoration .  Editorial Universidad Estatal a Distancia, San JosŽ, Costa Rica, 103 pp."
ACG study		"Janzen, D. H. 1986.  Lost plants.  Oikos 46:129-131."
ACG study		"Janzen, D. H. 1986.  Mice, big mammals, and seeds: it matters who defecates what where.  In Frugivores and seed dispersal, A. Estrada and T. H. Fleming, eds., Dr. W.  Junk Publishers, Dordrecht, Holland, pp. 251-271."
ACG study		"Janzen, D. H. 1986.  Science is forever.  Oikos 46:281-283."
ACG study		"Janzen, D. H. 1986.  Seeds as products.  Oikos 46:1-2."
ACG study		"Janzen, D. H. 1986.  The eternal external threat.  In Conservation biology:  the science of scarcity and diversity, M. E. Soule, ed.,  Sinauer Associates, Sunderland, Mass, pp. 286-303."
ACG study		"Janzen, D. H. 1986.  The future of tropical ecology.  Annual Review of Ecology and Systematics 17:305-324."
ACG study		"Janzen, D. H. 1987.  Conservation and Agricultural Economics.  Science 236:1159."
ACG study		"Janzen, D. H. 1987.  Editorial.  Conservation Biology 1:95."
ACG study		"Janzen, D. H. 1987.  Forest restoration in Costa Rica.  Science 235:15."
ACG study		"Janzen, D. H. 1987.  Habitat sharpening.  Oikos 48:3-4."
ACG study		"Janzen, D. H. 1987.  How moths pass the dry season in a Costa Rican dry forest.  Insect Science and its Application 8:489-500."
ACG study		"Janzen, D. H. 1987.  How to grow a tropical national park:  basic philosophy for Guanacaste National Park, northwestern Costa Rica.  Experientia 43:1037-1038."
ACG study	parasitoids	"Janzen, D. H.  1987.  Insect diversity of a Costa Rican dry forest: why keep it, and how?  Biological Journal of the Linnean Society 30:343-356."
ACG study		"Janzen, D. H. 1987.  Oh, I forgot about zoos.  Oikos 48:241-242."
ACG study	parasitoids	"Janzen, D. H.  1987.  When, and when not to leave.  Oikos 49:241-243.  "
ACG study	ant-plant mutualisms	"Janzen, D. H. 1988.  Book Review.  The evolutionary ecology of ant-plant mutualisms.  American Scientist 76:91."
ACG study		"Janzen, D. H. 1988.  Book Review.  The open research problems in the life sciences under tropical conditions.  Quarterly Review of Biology 63:114."	
ACG study		"Janzen, D. H. 1988.  Buy Costa Rican beef.  Oikos 51:257-258."	
ACG study		"Janzen, D. H. 1988.  Complexity is in the eye of the beholder.  In Tropical Rainforests: Diversity and Conservation, F. Almeda and C. M. Pringle, eds.,  California Academy of Science and AAAS, San Francisco, pp. 29-51."	
ACG study		"Janzen, D. H. 1988.  Ecological characterization of a Costa Rican dry forest caterpillar fauna. Biotropica 20:120-135."	
ACG study		"Janzen, D. H. 1988.  Guanacaste National Park Project, Annual Report, Jessie Smith Noyes Foundation, p. 39."	
ACG study		"Janzen, D. H. 1988.  Guanacaste National Park:  Tropical ecological and biocultural restoration.  In Rehabilitating damaged ecosystems, Vol. II, J. J. Cairns, ed.,  CRC Press, Boca Raton, Florida, pp. 143-192."	
ACG study		"Janzen, D. H. 1988.  Letters.  CO2 reduction and reforestation.  Science 242:1493."	
ACG study		"Janzen, D. H. 1988.  Letters.  Conservation Biology 2:309-310."	
ACG study		"Janzen, D. H. 1988.  Management of habitat fragments in a tropical dry forest:  growth.  Annals of the Missouri Botanical Garden 75:105-116."	
ACG study		"Janzen, D. H. 1988.  On the broadening of insect-plant research.  Ecology 69:905."	
ACG study		"Janzen, D. H. 1988.  The migrant moths of Guanacaste.  Orion Nature Quarterly 7:38-41."	
ACG study		"Janzen, D. H. 1988.  There are differences between tropical and extra-tropical national parks.  Oikos 51:121-123."	
ACG study		"Janzen, D. H. 1988.  Tropical dry forests:  the most endangered major tropical ecosystem.  In  Biodiversity,  E. O. Wilson, ed.,  National Academy Press, Washington, D. C., pp. 130-137."	
ACG study		"Janzen, D. H. 1988.  Tropical ecological and biocultural restoration.  Science 239:243-244."	
ACG study		"Janzen, D. H. 1989.  Affirmative action for insects in tropical national parks.  In The evolutionary "	"ecology of plants, J. H. Bock and Y. B. Linhart, eds.,  Westview Press, Boulder, Colorado, pp. 579-588."
ACG study		"Janzen, D. H. 1989.  Editorial.  Conservation Biology 3:109-110."	
ACG study		"Janzen, D. H. 1989.  El eslab—n entre la conservaci—n y el desarrollo sostenible:  Maribel G‡mez Mata.  Revista de Filosf’a Universidad de Costa Rica.  27:333-337."
ACG study		"Janzen, D. H. 1989.  La biodiversidad y la sostenibilidad de Costa Rica.  In Memoria 1er Congreso.  Estrategia de conservacion para el desarrolo sostenible de Costa Rica,  Ministerio de Recursos Naturales, San Jose, Costa Rica, pp. 329-337."
ACG study		"Janzen, D. H. 1989.  Natural history of a wind-pollinated Central American dry forest legume tree (Ateleia herbert-smithii Pittier).  Monographs in Systematic Botany from the Missouri Botanical Garden 29:293-376."
ACG study		"Janzen, D. H. 1990.  An abandoned field is not a tree fall gap.  Vida Silvestre Neotropical 2:64-67."
ACG study		"Janzen, D. H. 1990.  Sustainable society through applied ecology:  the reinvention of the village.  In Race to save the tropics, R. Goodland, ed.,  Island Press, Washington, D. C. Forward, pp. xi-xiv."
ACG study		"Janzen, D. H. 1991.  How to save tropical biodiversity.  American Entomologist 37:159-171."
ACG study		"Janzen, D. H. 1992.  A dry tropical forest ecosystem restored. Earth Summit Times, New York Daily News, PO Box 1475, Grand Central Station, New York, NY  10163, Issue 28, April 1, 1992, p. 1."
ACG study		"Janzen, D. H. 1992.  A south-north perspective on science in the management, use, and economic development of biodiversity.  In Conservation of biodiversity for sustainable development, O. T. Sandlund, K. Hindar, and A. H. D. Brown, eds.,  Scandinavian University Press, Oslo, pp. 27-52."
ACG study		"Janzen, D. H. 1992.  Costa Rica desde el punto de vista de un extranjero.   God, money and the rainforest.  Saving life on earth.  Proceedings of the first congress, Apr. 20-22, 1992, San Jose, Costa Rica, Center for Environmental Study, Grand Rapids, Michigan  pp. 53-58."
ACG study		"Janzen, D. H. 1992.  Ecoturismo:  una caminata guiada adentro el sistema de invernaderos de la corporaci—n Costa Rica.   Manuscript for the ""II Simposio Internacional de Ecologia, Turismo y Municipio"", 4-6 May 1992, San Jose, Costa Rica."
ACG study		"Janzen, D. H. 1992.  On conserving Costa Rica's tropical forests.  Calypso Log 19 (4):14-15, 22."
ACG study		"Janzen, D. H. 1992.  The neotropics.  A broad look at prospects for restoration in Central and South America raises some basic questions about methods, about goals, and about the restorationist's role in evolution.  Restoration and Management Notes 10:8-13."
ACG study		"Janzen, D. H. 1992.  Tropical reforestation: the Guanacaste Project.   Proceedings of the First Pan American Furniture Manufacturers' Symposium on Tropical Hardwoods, 1991, Grand Rapids, Michigan,  pp. 25-36."
ACG study		"Janzen, D. H. 1992   What does tropical society want from the taxonomist?  In Hymenoptera and Biodiversity,  J. LaSalle and I. D. Gauld, eds., Hymenoptera and Biodiversity, CAB International, Wallingford, UK, pp. 295-307.  pp. 295-307.  "
ACG study	parasitoids	"Janzen, D. H. 1993.  Caterpillar seasonality in a Costa Rican dry forest.  In: Caterpillars. Ecolgical and evolutionary constraints on foraging.  Eds. N. E. Stamp and T. M. Casey, Chapman and Hall, New York, pp. 448-477."
ACG study		"Janzen, D. H. 1993.  Taxonomy: universal and essential infrastructure for development and management of tropical wildland biodiversity.  In Proceedings of the Norway/UNEP Expert Conference on Biodiversity, Trondheim, Norway, O. T. Sandlund and P. J. Schei, eds., NINA, Trondheim, Norway, pp. 100-113."
ACG study		"Janzen, D. H. 1994.  Priorities in tropical biology.  Trends in Ecology and Evolution 9:365-367."
ACG study		"Janzen, D. H. 1994.  Wildland biodiversity management in the tropics: where are we now and where are we going?  Vida Silvestre Neotropical 3(1):3-15."
ACG study		"Janzen, D. H. 1995.  Neotropical restoration biology.  Vida Silvestre Neotropical 4(1):3-9."
ACG study		"Janzen, D. H. 1996.  On the importance of systematic biology in biodiversity development.  ASC Newsletter 24:17, 23-28."
ACG study		"Janzen, D. H. 1996.  Prioritization of major groups of taxa for the All Taxa Biodiversity Inventory (ATBI) of the Guanacaste Conservation Area in northwestern Costa Rica, a biodiversity development project.  ASC Newsletter 24 (4): 45, 49-56."
ACG study		"Janzen, D. H. 1997.  Causes and consequences of biodiversity loss: liquidation of natural capital and biodiversity resource development in Costa Rica.  In Biodiversity and human health, eds. F. Grifo and J. Rosenthal, Island Press, Washington, D. C. pp. 302-311.  "
ACG study		"Janzen, D. H. 1997.  The carbon crop.  Science 277:883."
ACG study		"Janzen, D. H. 1997.  Wildland biodiversity management in the tropics.  In Biodiversity II, eds. M. L. Reaka-Kudla, D. E. Wilson and E. O. Wilson.  Joseph Henry Press, Washington, D.C., pp. 411-431."
ACG study		"Janzen, D. H. 1998.  Conservation analysis of the Santa Elena property, Peninsula Santa Elena, northwestern Costa Rica.  Unpublished report to the Government of Costa Rica, 129 pp. + 4 Appendices."
ACG study		"Janzen, D. H. 1998.  Gardenification of wildland nature and the human footprint.  Science 279:1312-1313."
ACG habitat elsewhere		"Janzen, D. H. and C. M. Pond.  1975.  A comparison, by sweep sampling, of the arthropod fauna of secondary vegetation in Michigan, England and Costa Rica.  Trans. R. Ent. Soc. Lond. 127:33-50."
ACG organism elsewhere		"Janzen, D. H. and C. M. Pond.  1976.  Food and feeding behavior of a captive Costa Rican least pigmy owl.  Brenesia 9:71-80."
ACG organism elsewhere		"Janzen, D. H. and D. Wilson.  1974.  The cost of being dormant in the tropics.  Biotropica 6:260-262."
ACG study		"Janzen, D. H., and Hallwachs, W. 1982.  The hooded skunk, Mephitis macroura, in lowland northwestern Costa Rica.  Brenesia 19/20:549-552."
ACG study		"Janzen, D. H. and Hallwachs, W. 1992.  Costa Rica's national biodiversity inventory:  the role of the parataxonomists and the experiences of the first two parataxonomist training courses, 1989 and 1990 (Final report to US/AID), 42 pp."
ACG study		"Janzen, D. H. and Hallwachs, W. 1992.  La restauraci—n de la biodiversidad tropical:  experiencias del Area de Conservaci—n Guanacaste y posibles aplicaciones en MŽxico.  In MŽxico ante los retos de la biodiversidad, J. Sarukhan, R. Dirzo, and compilers, eds.,  Comisi—n Nacional para el Conocimiento y Uso de la Biodiversidad, Mexico, pp. 243-250."
ACG study		"Janzen, D. H. and I. D. Gauld 1997.  Patterns of use of large moth caterpillars (Lepidoptera: Saturniidae and Sphingidae) by ichneumonid parasitoids (Hymenoptera) in Costa Rican dry forest.  In Forests and insects, eds. A. D. Watt, N. E. Stork and M. D. Hunter, Chapman & Hall, London, pp. 251-271. "
ACG study		"Janzen, D. H., and M. L. Higgins. 1979.  How hard are Enterolobium cyclocarpum (Leguminosae) seeds?  Brenesia 16:61-67."
ACG study		"Janzen, D. H. and Martin, P. S. 1982.  Pleistocene seed dispersal.  Science 216:6."
ACG organism elsewhere	ant-plant mutualisms	"Janzen, D. H. and McKey, D. 1977.  Musanga cecropiodes is a Cecropia without its ants.  Biotropica 9:57."
ACG study		"Janzen, D. H. and P. G. Waterman 1984.  A seasonal census of phenolics, fibre and alkaloids in foliage of forest trees in Costa Rica: some factors influencing their distribution and relation to host selection by Sphingidae and Saturniidae.  Biol. J. Linn. Soc. 21:439-454."
ACG study		"Janzen, D. H. and P. S. Martin.  1982.  Neotropical anachronisms: the fruits the gomphotheres ate.  Science 215:19-27."
ACG study		"Janzen, D. H. and R. G‡mez 1997.  Assessing information needs for sustainable use and conservation of biodiversity.  In Biodiversity information: needs and options, eds. D. L. Hawksworth, P. M. Kirk and S. Dextre Clarke, CAB International, Wallingford, Oxon, UK, pp. 21-29."
ACG study		"Janzen, D. H. and R. Liesner.  1980.  Annotated check-list of plants of lowland Guanacaste Province, Costa Rica, exclusive of grasses and non-vascular cryptograms.  Brenesia 18:15-90."
ACG habitat elsewhere		"Janzen, D. H. and T. W. Schoener.  1968.  Differences in insect abundance and diversity between wetter and drier sites during a tropical dry season.  Ecology 49:96-110."
ACG study		"Janzen, D. H. and Vazquez-Yanes, C. 1988.  Tropical forest seed ecology.  In Rain Forest Regeneration and Management, M. Hadley, ed.,  Biology International, Special Issue 18:28-33."
ACG study		"Janzen, D. H. and V‡zquez-Yanes, C. 1991.  Aspects of tropical seed ecology of relevance to management of tropical forest wildlands.  In Rainforest regeneration and management, A. Gomez-Pompa, T. C. Whitmore, and M. Hadley, eds.,  UNESCO, Paris, pp. 137-157."
ACG study		"Janzen, D. H. and W. Hallwachs.  1982.  The hooded skunk, Mephitis macroura, in lowland northwestern Costa Rica.  Brenesia 19/20:549-552."
ACG study		"Janzen, D. H. and  W. Hallwachs 1992.  Costa Rica's national biodiversity inventory: the role of the parataxonomists and the experiences of the first two parataxonomist training courses, 1989 and 1990.  Final report to US/AID, 42 pp."
ACG study		"Janzen, D. H. and W. Hallwachs 1992.  Training parataxonomists for Costa RicaÕs national biodiversity inventory: the experiences of the first predominantly female course (1992).  Final report to INBio and US-AID, 45 pp."
ACG study		"Janzen, D. H. and W. Hallwachs 1993.  Highlights of the NSF-sponsored ÒAll Taxa Biodiversity Inventory WorkshopÓ, 16-18 April 1993, Philadelphia. "
ACG study		"Janzen, D. H. and W. Hallwachs 1994.  All Taxa Biodiversity Inventory (ATBI) of Terrestrial Systems.  A generic protocol for preparing wildland biodiversity for non-damaging use.  Report of a NSF Workshop, 16-18 April 1993, Philadelphia, Pennsylvania, 132 pp."
ACG study		"Janzen, D. H. and W. Hallwachs 1994.  Ethical aspects of the impact of humans on biodiversity.  In Man and his environment.  Tropical forests and the conservation of species, ed. G. B. Marini-Bettolo.   Pontificiae Academiae Scientiarum Scripta Varia 84:227-255."
ACG study		"Janzen, D. H. and W. Hallwachs 1998.  Inventory - preparing biodiversity for non-damaging use by society.  Foreward to: Protocols for an All Taxa Biodiversity Inventory of fungi in a Costa Rican conservation area, eds. A. Y. Rossman, R. E. Tulloss, T. E. OÕDell, and R. G. Thorn, Parkway Publishers, Boone, North Carolina, USA, 195 pp.  "
ACG study		"Janzen, D. H., and Waterman, P. G. 1984.  A seasonal census of phenolics, fibre and alkaloids in foliage of forest trees in Costa Rica:  some factors influencing their distribution and relation to host selection by Sphingidae and Saturniidae.  Biological Journal of the Linnean Society 21:439-454."
ACG habitat elsewhere		"Janzen, D. H., Ataroff, M., Farinas, M., Reyes, S., Rincon, N., Soler, A., Soriano, P., and Vera, M. 1976.  Changes in the arthropod community along an elevational transect in the Venezuelan Andes.  Biotropica 8:193-203."
ACG organism elsewhere		"Janzen, D. H., D. G. Lynn, L. E. Fellows and W. Hallwachs.  1982.  The indole alkaloid, hypaphorine and Pterocarpus seed protection.  Phytochemistry 21:1035-1037."
ACG study		"Janzen, D. H., Demment, M. W., and Robertson, J. B. 1985.  How fast and why do germinating guanacaste seeds (Enterolobium cyclocarpum) die inside cows and horses.  Biotropica 17:322-325."
ACG study		"Janzen, D. H., ed. 1983.  Costa Rican natural history .  University of Chicago Press, Chicago, 816 pp."
ACG study		"Janzen, D. H., Fellows, L. E., and Waterman, P. G. 1990.  What protects Lonchocarpus (Leguminosae) seeds in a Costa Rican dry forest?  Biotropica 22:272-285."
ACG study		"Janzen, D. H., H. B. Juster and E. A. Bell.  1977.  Toxicity of secondary compounds to the seed-eating larvae of the bruchid beetle Callosobruchus maculatus.  Phytochemistry 16:223-227."
ACG study		"Janzen, D. H., Hallwachs, R. Gamez, A. Sittenfeld, and J. Jimenez 1993.  Research management policies: permits for collecting and research in the tropics.  In Biodiversity Prospecting, W. V. Reid, et al, eds., World Resources Institute, Washington, D. C., pp. 131-157.  "
ACG study		"Janzen, D. H., Juster, H. B., and Liener, I. E. 1976.  Insecticidal action of the phytohemagglutinin in black beans on a bruchid beetle.  Science 192:795-796."
ACG organism elsewhere		"Janzen, D. H., Miller, G. A., Hackforth-Jones, J., Pond, C. M., Hooper, K., and Janos, D. P. 1976.  Two Costa Rican bat-generated seed shadows of Andira inermis (Leguminosae).   Ecology 56:1068-1075."
ACG study		"Janzen, D. H., P. DeVries, D. E. Gladstone, M. L. Higgins and T. M. Lewinson 1980.  Self- and cross-pollination of Encyclia cordigera (Orchidaceae) in Santa Rosa National Park, Costa Rica.  Biotropica 12:72-74."
ACG study		"Janzen, D. H., P. J. DeVries, M. L. Higgins and L. S. Kimsey.  1982.  Seasonal and site variation in Costa Rican euglossine bees at chemical baits in lowland deciduous and evergreen forests.  Ecology 63:66-74."
ACG study		"Janzen, D. H., Ryan, C. A., Leiner, I. E., and Pearce, G. 1986.  Potentially defensive proteins in mature seeds of 59 species of tropical Leguminosae.  Journal of Chemical Ecology 12:1469-1480."
ACG study	ant-plant mutualisms	"Janzen, D. H., S. T. Doerner and E. E. Conn.  1980.  Seasonal constancy of intra-population variation of HCN content of Costa Rican Acacia farnesiana foliage.  Phytochemistry 19:2022-2023."
ACG study		"Janzen, D. H., W. Hallwachs, J. Jimenez and R. G‡mez 1993.  The role of the parataxonomists, inventory managers and taxonomists in Costa RicaÕs national biodiversity inventory.  In Biodiversity Prospecting, W. V. Reid, et al,  eds., World Resources Institute, Washington, D. C., pp. 223-254. "
ACG study		"Johnson, C. D and D. H. Janzen.  1982.  Why are seeds of the Central American guanacaste tree, Enterolobium cyclocarpum, not attacked by bruchids except in Panama?  Environmental Entomology 11:373- 377."
ACG study		"Johnson, L. K.  1980.  Alarm response of foraging Trigona fulviventris (Hymenoptera: Apidae) to mandibular gland components of competing bee species.  J. Kan. Ent. Soc. 53:357-362."
ACG study		"Johnson, L. K.  1982.  Sexual selection in a brentid weevil.  Evolution 36:251-262."
ACG study		"Johnson, L. K. and D. F. Wiemer.  1982.  Nerol: an alarm substance of the stingless bee, Trigona fulviventris (Hymenoptera: Apidae).  Journal of Chemical Ecology 8:1167-1181."
ACG study		"Johnson, L. K. and S. P. Hubbell.  1975.  Contrasting foraging strategies and coexistence of two bee species on a single resource.  Ecology 56:1398-1406."
ACG study		"Johnson, N. C. and D. A. Wedin 1997.  Soil carbon, nutrients, and mycorrhizae during conversion of tropical forest to grassland.  Ecological Applications 7(1):171-182."
ACG organism elsewhere		"Jones, C. B.  1979.  Grooming in the mantled howler monkey, Alouatta palliata Gray.  Primates 20:289-292."
ACG organism elsewhere		"Jones, C. B.  1980.  Seasonal parturition mortality and dispersal in the mantled howler monkey, Alouatta palliata Gray.  Brenesia 17:1-10."
ACG organism elsewhere		"Jones, C. B.  1980.  The functions of status in the mantled howler monkey, Alouatta palliata Gray: intraspecific competition for group membership in a folivorous neotropical primate.  Primates 21:389-405."
ACG organism elsewhere		"Jones, C. B.  1981.  Comment on ""Allomothering in Hanuman Langurs"".  Ethology and Sociobiology 2:89-90."
ACG organism elsewhere		"Jones, C. B.  1982.  A field manipulation of spatial relations among male mantled howler monkeys.  Primates 23:130-134."
ACG organism elsewhere		"Karr, J. R., M. F. Willson, and D. J. Moriarty.  1978.  Weights of some Central American birds.  Brenesia 14-15:249-257."
ACG organism elsewhere		"Keeler, K. H.  1975.  Ipomoea carnea Jacq.  (Convolvulaceae) in Costa Rica.  Brenesia 5:1-6."
ACG organism elsewhere		"Keeler, K. H.  1975.  Plant adaptation: insect defense and enzyme variation.  Ph.D. thesis, Univ. Calif., Berkeley."
ACG organism elsewhere		"Keeler, K. H.  1977.  The extrafloral nectaries of Ipomoea carnea (Convolvulaceae).  Amer. J. Bot. 64:1182-1188."
ACG organism elsewhere		"Keeler, K. H.  1978.  Insects feeding at extrafloral nectaries of Ipomoea carnea (Convolvulaceae).  Ent. News 89:163-168."
ACG organism elsewhere	ant-plant mutualisms	"Keeler, K. H.  1981.  Infidelity by acacia-ants.  Biotropica 13:79-80."
ACG organism elsewhere		"Kennedy, H.  1978.  Systematics and pollination of the ""closed- flowered"" species of Calathea (Marantaceae).  University of California Publications in Botany 71, 90 pp."
ACG study		"Khan, M. R., A. I. Gray and P. G. Waterman 1987.  Neolignans from stem bark of Ocotea veraguensis.  Phytochemistry 26:1155-1158. "
ACG study		"Khan, M. R., A. I. Gray and P. G. Waterman 1989.  Kaur-16-en diterpenes from the stem of Lasianthea fruticosa.  Rev. Latinoamer. Qu’m. 20:75-76."
ACG study		"Khan, M. R., A. I. Gray and P. G. Waterman 1990.  Clerodane diterpenes from Zuelania guidonia stem bark.  Phytochemistry (in press)."
ACG study		"Khan, M. R., A. I. Gray, D. R. Reed, I. H. Sadler and P. G. Waterman 1990.  Diterpenes from Zuelania guidonia.  Phytochemistry 29:1609-1614.  "
ACG study		"Khan, M. R., A. I. Gray, I. H. Sadler and P. G. Waterman 1990.  Clerodane diterpenes from Casearia corymbosa stem bark.  Phytochemistry 29:3591-3595."
ACG study		"Kingsolver, J. M. 1980.  Eighteen new species of Bruchidae, principally from Costa Rica, with host records ad distributional notes (Insecta: Coleoptera).  Proceedings of the Biological Society of Washington 93:229-283."
ACG study		"Kingsolver, J. M.  1980.  The quadridentatus group of Acanthoscelides: descriptions of three new species, notes, synonymies, and a new name (Coleoptera, Bruchidae).  Brenesia 17:281-294."
ACG organism elsewhere		"Koford, R. R., B. S. Bowen and S. L. Vehrencamp.  1986.  Habitat saturation in Groove-billed Anis (Crotophaga sulcirostris).  The American Naturalist 127:317-337."
ACG study		"Kramer, E. A. 1996.  Temporal change and patch dynamics of Costa Rican tropical dry forest remnants in an agricultural landscape assessed using remotely sensed thermal data.  Ph.D. thesis, University of Georgia, 131 pp."
ACG organism elsewhere		"Kropf, W.  1973.  Algunas consideraciones Estadisticas sobre la ganaderia de carne.  Practica Inst. de Prod. animal EPFZ, Zuerich publicado por el Banco Central de C. R."
ACG organism elsewhere		"Kropf, W.  1974.  Der Zuwachs von Masttieren in einem Weidemastbetrieb in Costa Rica.  Tesis de grado Inst. de Prod. animal EPFZ, Zuerich."
ACG organism elsewhere		"Kropf, W.  1978.  Influence de facteurs genetiques et non genetiques ainsi que la selection sur le niveau de performance et le rendement d""um troupeau de bovins a viande en zone semi-aride.  Tesis de doctorado EPFZ, Zuerich."
ACG organism elsewhere		"Kropf, W. et al.  1978.  Benefice marginal phenotypique de certains facteurs influencant le rendement du troupeau a viande en zone semi-aride.  IV World conference on animal production.  Buenos Aires, ARG. (in press)."
ACG study		"Langen, T. A. 1994.  Birds of the ACG.  Programa de Investigaci—n, Area de Conservaci—n Guanacaste, Costa Rica. 16 p. ms."
ACG organism elsewhere		"Langenheim, J. H. and C. A. Balser 1975.  Botanical origin of resin objects from aboriginal Costa Rica.  Vinculos 1:72-82."
ACG study		"Langreth, R. 1994.  The world according to Dan Janzen.  Popular Science 245(6):78-82,112-115."
ACG study		"Larsson, F. K. 1989.  Mating patterns in six insect species: effects of weather and population density.  Ph.D. dissertation, Uppsala University, Uppsala, Sweden.  110 pp."
ACG study		"Larsson, F. K. 1989.  Temperature-induced alternative male mating tactics in a tropical digger wasp.  Journal of Insect Behavior 2:849-852."
ACG study		"Larsson, F. K. 1989.  Thermoregulation and activity patterns of the sand wasp Steniolia longirostrata (Say) (Hymenoptera: Sphecidae) in Costa Rica.  Biotropica (in press).    "
ACG study		"Larsson, F. K. and K. Larsson 1989.  Body size and nesting behavior of the sand wasp Stictia heros (Hymenoptera: Sphecidae) in Costa Rica.  J. Trop. Ecol. 5:117-120.  "
ACG organism elsewhere		"Laval, R. K.  1970.  Banding returns and activity periods of some Costa Rican bats.  Southwest. Nat. 15:1-10."
ACG organism elsewhere		"Laval, R. K.  1973.  A revision of the neotropical bats of the genus Myotis.  Sci. Bull., Los Angeles Co. Mus. 15:1-54."
ACG organism elsewhere		"Laval, R. K.  1973.  Systematics of the genus Rhogeessa (Chiroptera: Vespertilionidae).  Occas. Pap. Univ. Kansas Mus. Nat. Hist. 19:1-47.  Available from: Publications Secretary, Museum of Natural History, University of Kansas, Lawrence, Kansas."
ACG organism elsewhere		"Laval, R. K.  1977.  Notes on some Costa Rican bats.  Brenesia 10/11:77-83."
ACG habitat elsewhere		"Laval, R. K. and H. S. Fitch.  1977.  Structure, movements and reproduction in three Costa Rican bat communities.  Occas. Pap. Univ. Kansas Mus. Nat. Hist. 69:1-28. "
ACG study		"Lewin, R. 1988.  Costa Rican biodiversity. Science 242:1637."
ACG organism elsewhere		"Lippold, L. K. 1989.  A census of primates in Cabo Blanco Absolute Nature Reserve, Costa Rica. Brenesia 31(in press)."
ACG organism elsewhere		"Lippold, L. K. 1989.  Primates in Cabo Blanco Absolute Nature Reserve, Costa Rica.  Primate Conservation 9 (in press)."
ACG organism elsewhere		"Lippold, L. K. 1990.  Wet season census at Cabo Blanco Absolute Nature Reserve, Costa Rica.  Brenesia (submitted)."
ACG study		"Lockwood, R., E. R. Heithaus, and T. H. Fleming.  1980.  Food preference and handling behavior of the frugivorous bat Carollia perspicillata.  Oecologia: under review."
ACG organism elsewhere		"Longino, J. T. 1989.  Geographic variation and community structure in an ant-plant mutualism: Azteca and Cecropia in Costa Rica.  Biotropica 21:126-132.  "
ACG organism elsewhere		"Lonsdale, W. M. 1993.  Losses from the seed bank of Mimosa pigra: soil micro-organisms vs. temperature fluctuations.  Journal of Applied Ecology 30:654-660."
ACG study		"Madrigal, R.  1982.  Geologia de Santa Rosa.  UNED, San Jose, Costa Rica, Serie: Miscelanea No. 4, 56 pp."
ACG study		"Mahmoud, E. N. and P. G. Waterman 1985.  Minimiflorin: a new 2'-hydroxyflavanone from Lonchocarpus minimiflorus seeds.   Journal of Natural Products 48:648-650."
ACG study	freshwater aquatic	"Maier, C. T.  1977.  The behavior of Hydrometra championiana (Hemiptera: Hydrometridae) and resource partitioning with Tenagogonus quadrilineatus (Hemiptera: Gerridae).  J. Kans. Ent. Soc. 50:263-271."
ACG study		"Mallory, K. 1992.  Waterhole.  Life in a rescued tropical forest.  Franklin Watts, New York, 59 pp.  "
ACG organism elsewhere		"Mares, M. A. and D. E. Wilson.  1971.  Bat reproduction during the Costa Rican dry season.  Bioscience 21:471-477."
ACG study		"Marsh, P. M. 1988.  Revision of the tribe Odontobraconini in the Western Hemisphere (Hymenoptera: Braconidae: Doryctinae).  Systematic Entomology 13:443-464."
ACG organism elsewhere		"Mart’nez S., G. A. and R. E. Murillo S. 1987.  Desarrollo larval de Cichlasoma nigrofasciatum (Gunther), l868 (Pisces: Cichlidae) en cultivos en laboratorio.  Rev. Biol. Trop. 35:ll3-ll9."
ACG organism elsewhere		"Massey, A. 1987.  A population survey of Alouatta palliata, Cebus capucinus and Ateles geoffroyi at Palo Verde, Costa Rica.  Rev. Biol. Trop. 35:345-347."
ACG study		"McClure, M. S.  1976.  Spatial distribution of pit-making ant lion larvae (Neuroptera: Myrmeleontidae): density effects.  Biotropica 8:179-183."
ACG organism elsewhere		"McCoy, M. B. and C. S. Vaughan 1990.  Seasonal movement, home range, activity and diet of collared peccaries (Tayassu tajacu) in Costa Rican dry forest.  Vida Silvestre Neotropical 2:6-20."
ACG organism elsewhere		"McDiarmid, R. W.  1968.  Populational variation in the frog genus Phrynohyas Fitzinger in Middle America.  Los Angeles County Museum of Natural History, Contrib. in Science 134:1-25."
ACG organism elsewhere		"McDiarmid, R. W. and M. S. Foster.  1975.  Unusual sites for two neotropical tadpoles.  J. Herpetology 9:264-265."
ACG organism elsewhere		"McDiarmid, R. W. and M. S. Foster.  1981.  Breeding habits of the toad Bufo coccifer in Costa Rica, with a description of the tadpole.  Southwestern Natur. 26:353-363."
ACG organism elsewhere		"McDiarmid, R. W., R. E. Ricklefs and M. S. Foster.  1977.  Dispersal of Stemmadenia donnell-smithii (Apocynaceae) by birds.  Biotropica 9:9-25."
ACG organism elsewhere		"McPherson, A. B.  1985.  A biogeographical analysis of factors influencing the distribution of Costa Rican rodents.  Brenesia 23:97-273."
ACG study		"Memmott, J., H. C. J. Godfray and I.D.Gauld 1994.  The structure of a tropical host-parasitoid community.  Journal of Animal Ecology 63:521-540."
ACG study		"Miller, J. S., D. H. Janzen, and J. G. Franclemont 1997.  New species of Euhapigioides, new genus, and Hapigiodes in Hapigiini, new tribe, from Costa Rica, with notes on their life history and immatures (Lepidoptera: Notodontidae).  Tropical Lepidoptera 8(2):81-99."
ACG organism elsewhere		"Monge-N‡jera, J. and B. Morera 1987.  Why is the coyote (Canis latrans) expanding its range?  A critique of the deforestation hypothesis.  Rev. Biol. Trop. 35:169-171."
ACG study		"Monson, M. P., R. W. Holzenthal and G. G. Ahlstrand 1988.  The larva and pupa of Cochliopsyche vazquezae (Trichoptera: Helicopsychidae).  Journal of the North American Benthological Society 7:152-159.  "
ACG habitat elsewhere		"Mora C., S. 1978.  Estudio geologico de los Cerros Barra Honda y alredadores, Nicoya, Guanacaste, Costa Rica.  Direcci—n de Ingenier’a de Energ’a, Instituto Costarricense de Electricidad, San JosŽ, Costa Rica, 132 pp.  "
ACG organism elsewhere		"Mora, J. M. 1987.  Actividad nocturna de Ctenosaura similis (Gray) (Reptilia: Iguanidae) en Palo Verde, Guanacaste, Costa Rica.  Vida Silvestre Neotropica l:81-82. "
ACG organism elsewhere		"Morhardt, J. E., T. H. Fleming, J. A. McCrum, P. Molt and C. Miller.  1975.  Metabolic rates of small homeotherms in a water bath.  Comparative Biochemistry and Physiology 52:355-358."
ACG organism elsewhere		"Moscow, D. and C. Vaughan 1987.  Troop movement and food habits of white-faced monkeys in a tropical dry forest.  Rev. Biol. Trop. 35:287-297."
ACG study		"Mu–oz-Q., F. 1997.  Five new species and a new record of Costa Rican Leptonema Guerin (Trichoptera: Hydropsychidae).  Proceedings of the Entomological Society of Washington 99(1):115-132."
ACG study		"Mu–oz-Q., F.  and R. W. Holzenthal 1993.  New species and records of Costa Rican Austrotinodes (Trichoptera: Ecnomidae).  Proc. Entomol. Soc. Wash. 94(4):564-573."
ACG habitat elsewhere		"Murphy, P. G. and A. E. Lugo 1986.  Ecology of tropical dry forest.  Annual Review of Ecology and Systematics 17:67-88."
ACG habitat elsewhere		"Nepstad, D. C., C. Uhl and E. A. S. Serrao 1991.  Recuperation of a degraded Amazonian landscape: forest recovery and agricultural restoration. Ambio 20:248-255."
ACG habitat elsewhere		"Nepstad, D. C., C. Uhl and E. A. Serrao 1990.  Surmounting barriers to forest regeneration in abandoned, highly degraded pastures: a case study from Paragominas, Par‡, Brazil.  In Alternatives to deforestation,  A. Anderson, ed., Columbia University Press, New York, pp. 215-229.  "
ACG study	freshwater aquatic	"Newbold, J. D., B. W. Sweeney, J. K. Jackson, and L. A. Kaplan 1995.  Concentrations and export of solutes from six mountain streams in northwestern Costa Rica.  Journal of the North American Benthological Society 14:21-27."
ACG study		"Newcomer, M. W. and D. D. De Farcy.  1985.  White-faced capuchin (Cebus capucinus) predation on a nestling coati (Nasua narica).  J. Mamm., 66(1):185-186."
ACG study		"Noyes, J. S. and H. Ren 1995.  Encyrtidae of Costa Rica (Hymenoptera: Chalcioidea): the genus Aenasius Walker, parasitoids of mealybugs (Homoptera: Pseudococcidae).  Bull. Nat. Hist. Mus. Lond. (Entomol.) 64:117-163.  "
ACG study		"Nu–ez, M. 1996.  Fructification of Polyporaceae s.l. (Basidiiomycotina) along a gradient of altitude and humidity in the Guanacaste Conservation Area (Costa Rica).  Journal of Tropical Ecology 12:893-898."
ACG study		"Oliveira, P. S.,  M. Galetti, F. Pedroni and L. P. C. Morellato 1995.  Seed cleaning by Mycocepurus  ants (Attini) facilitates germination in Hymenaea courbaril (Caesalpiniaceae).  Biotropica 27:518-522."
ACG study		"Olson, E. J. 1995.  Seasonal change in growth and survivorship of a neotropical dry forest caterpillar, Rothschildia lebeau (Saturniidae).  Ms. in press"
ACG study		"Olsson, A.  1922.  The miocene of northern Costa Rica, part 1-2.  Bull. Amer. Paleont. 9(39):179-460."
ACG habitat elsewhere		"Opler, P. A.  1978.  Interaction of plant life history components as related to arboreal herbivory.  In Ecology of arboreal folivores, G. G. Montgomery ed., Smithsonian Institute Press, Washington, D. C. pp. 23-31."
ACG organism elsewhere		"Opler, P. A.  1981.  Polymorphic mimicry of polistine wasps by a neotropical neuropteran.  Biotropica 13:165-176."
ACG organism elsewhere		"Opler, P. A.  1982.  Nectar production in a tropical ecosystem: quantity and timing for different pollinators.  In Biology of nectaries, Elias and Bentley eds., Columbia Univ. Press (in press)."
ACG organism elsewhere		"Opler, P. A. and K. S. Bawa.  1978.  Sex ratios in tropical forest trees.  Evolution.  32:812-821."
ACG habitat elsewhere		"Opler, P. A., G. W. Frankie and H. G. Baker.  1976.  Rainfall as a factor in the release, timing, and synchronization of anthesis by tropical trees and shrubs.  Jour. Biogeography 3:231-236."
ACG habitat elsewhere		"Opler, P. A., G. W. Frankie and H. G. Baker.  1980.  Comparative phenological studies of treelet and shrub species in tropical wet and dry forests in the lowlands of Costa Rica.  J. Ecol. 68:167-188."
ACG organism elsewhere		"Opler, P. A., H. G. Baker and G. W. Frankie.  1975.  Reproductive biology of some Costa Rican Cordia species (Boraginaceae).  Biotropica 7:234-247."
ACG habitat elsewhere		"Opler, P. A., H. G. Baker and G. W. Frankie.  1977.  Recovery of tropical lowland forest ecosystems.  In Recovery and restoration of damaged ecosystems, J. Cairns Jr., K. L. Dickson and E. E. Herricks eds., University Press of Virginia, Charlottesville, VA., pp. 379-421."
ACG organism elsewhere		"Opler, P. A., H. G. Baker and G. W. Frankie.  1980.  Plant reproductive characteristics during secondary succession in neotropical lowland forest ecosystems.  Biotropica suppl. 40-46."
ACG study		"Otis, G. W. and R. E. Buskirk.  1986.  Annual growth bands in a tropical dry forest cactus, Lemaireocereus aragonii.  Cactus and Succulent Journal (U.S.) 58:25-29."
ACG habitat elsewhere		"Parker, T. A., III, A. H. Gentry, R. B. Foster, L. H. Emmons, and J. V. Remsen, Jr. 1993.  The lowland dry forests of Santa Cruz, Bolivia:  A global conservation priority.  Conservation International, RAP Working Papers 4, 104 pp."
ACG organism elsewhere		"Parsons, J. J. 1970.  The ÒAfricanizationÓ of the New World tropical grasslands.  Beitrage zur Geographie Tropen und Subtropen.  Festschrift fur Herbert Wilhelm.  Tubinger Geographischer Studien 34:141-153."
ACG study		"Perry, A. E. and T. H. Fleming.  1980.  Ant and rodent predation on small, animal-dispersed seeds in a dry tropical forest.  Brenesia 17:11-22."
ACG organism elsewhere		"Pescador, A. 1989.  Larval growth and survival of Hylesia lineata (Saturniidae: Hemileucinae) caterpillars in a tropical deciduous forest.  Ms.  27 pp."
ACG study		"Pfaffenberger, G. S. and D. H. Janzen.  1984.  Life history and morphology of first and last larval instars of Costa Rican Caryedes brasiliensis Thunberg (Coleoptera: Bruchidae).  The Coleopterists Bulletin 38:267-281."
ACG study		"Phillips, E. and M. A. Solis 1996.  Neurophyseta (Lepidoptera: Crambidae) de Costa Rica.  Revista de Biolog’a Tropical 44(2):692-717."
ACG study		"Pitkin, L.M. 1993.  Neotropical emerald moths of the genera Nemoria, Lissochlora and Chavarriella, with particular reference to the species of Costa Rica (Lepidoptera: Geometridae, Geometrinae).  Bull. Nat. Hist. Mus. Lond (Ent.) 62(2):39-159.  "
ACG study		"Plotkin, P. T., R. A. Byles, D. C. Rostal and D. W. Owens 1995.  Independent versus socially facilitated oceanic migrations of the olive ridley, Lepidochelys olivacea.  Marine Biology 122:137-143."
ACG habitat elsewhere		"Pool, D. J., S. C. Snedaker and A. E. Lugo.  1977.  Structure of mangrove forests in Florida, Puerto Rico, Mexico, and Costa Rica.  Biotropica 9:195-212."
ACG study		"Porter, C.  1986.  A new arboricolous Thyreodon from Costa Rica (Hymenoptera: Ichneumonidae: Ophioninae).  Psyche 93:133-139."
ACG habitat elsewhere		"Portig, W. H.  1965.  Central American rainfall.  Geogr. Rev. 55:68- 90."
ACG organism elsewhere		"Rauscher, M. D. and N. L. Fowler.  1979.  Intersexual aggression and nectar defense in Chauliognathus distinquendus (Coleoptera: Cantharidae).  Biotropica 11:96-100."
ACG organism elsewhere		"Ray, G. J. and B. J. Brown 1994.  Seed ecology of woody species in a Caribbean dry forest.  Restoration Ecology 2:156-163."
ACG habitat elsewhere		"Ray, G. J. and B. J. Brown 1994.  Seed ecology of woody species in a Caribbean dry forest.  Restoration Ecology 2:156-163."
ACG habitat elsewhere		"Ray, G. J. and B. J. Brown 1995.  Restoring Caribbean dry forests: evaluation of tree propagation techniques.  Restoration Ecology 3:86-94."
ACG study		"Rehr, S. S., D. H. Janzen and P. P. Feeny.  1973.  L-DOPA in legume seeds: a chemical barrier to insect attack.  Science 181:81-82."
ACG study		"Rehr, S. S., E. A. Bell, D. H. Janzen and P. P. Feeny.  1973.  Insecticidal amino acids in legume seeds.  Biochemical systematics 1:63-67."
ACG study		"Rehr, S. S., P. P. Feeny and D. H. Janzen.  1973.  Chemical defense in Central American non-ant-acacias.  Jour. Anim. Ecol. 42:405-416."
ACG organism elsewhere		"Reich, P. and R. Borchert 1982.  Phenology and ecophysiology of the tropical tree, Tabebuia neochrysantha (Bignoniaceae).  Ecology 63:294-299."
ACG organism elsewhere		"Reich, P. B. and R. Borchert 1984.  Water stress and phenology of trees in a tropical deciduous forest in Costa Rica.  Journal of Ecology 72:61-74. "
ACG study		"Reid, W. V., S. A. Laird, R. G‡mez, A. Sittenfeld, D. H. Janzen, M. A. Gollin and C. Juma, eds. 1993.  Biodiversity Prospecting.  World Resources Institute, Washington, D.C. 341 pp."
ACG organism elsewhere		"Ribeiro, S. P., H. R. Pimenta and G. W. Fernandes 1994.  Herbivory by chewing and sucking insects on Tabebuia ochracea.  Biotropica 26:302-307"
ACG study		"Robin, C. and J. Tournon 1978.  Spatial relations of andesitic and alkaline provinces in Mexico and Central America.  Can. J. Earth Sci. 15:1633-1641."
ACG study		"Rockwood, L. 1973.  The effect of defoliation on seed production of six Costa Rican tree species.  Ecology 54:1363-1369."
ACG organism elsewhere		"Rockwood, L. L.  1971.  Population ecology of leaf-cutter ants in Guanacaste.  Organization for Tropical Studies News 71:4-5."
ACG organism elsewhere		"Rockwood, L. L.  1972.  Studies on animal-plant interactions in a seasonal tropical environment.  Ph.D. thesis, University of Chicago, 244 pp."
ACG organism elsewhere		"Rockwood, L. L.  1973.  Distribution, density and dispersion of two species of Atta (Hymenoptera: Formicidae) in Guanacaste Province, Costa Rica.  Jour. of Animal Ecol. 42:803-817."
ACG organism elsewhere		"Rockwood, L. L.  1973.  The effect of defoliation on seed production of six Costa Rican tree species.  Ecology 54:1363-1369."
ACG organism elsewhere		"Rockwood, L. L.  1974.  Seasonal changes in the susceptibility of Crescentia alata leaves to the flea beetle, Oedionychus sp.  Ecology 55:142-148."
ACG organism elsewhere		"Rockwood, L. L.  1975.  The effects of seasonality of foraging in two species of leaf-cutting ants (Atta) in Guanacaste Province, Costa Rica.  Biotropica 7:176-193."
ACG organism elsewhere		"Rockwood, L. L.  1976.  Plant selection and foraging in two species of leaf-cutting ants (Atta).  Ecology 57:48-61."
ACG organism elsewhere		"Rockwood, L. L.  1977.  Foraging patterns and plant selection on Costa Rican leaf-cutting ants.  J. New York Ent. Soc. 85:222-233."
ACG organism elsewhere		"Rockwood, L. L. and K. E. Glander.  1979.  Howling monkeys and leaf- cutting ants: comparative foraging in a tropical deciduous forest.  Biotropica 11:1-10."
ACG study		"Rosenthal, G. A. and D. H. Janzen.  1983.  Arginase and L-canavanine metabolism by the bruchid beetle, Caryedes brasiliensis.  Ent. exp. and appl. 34:336-337."
ACG study		"Rosenthal, G. A. and D. H. Janzen.  1985.  Ammonia utilization by the bruchid beetle, Caryedes brasiliensis (Bruchidae).  Journal of Chemical Ecology 11:539-544."
ACG study		"Rosenthal, G. A. and D. H. Janzen 1983.  Avoidance of nonprotein amino acid incorporation into protein by the seed predator Caryedes brasiliensis (Bruchidae).  Journal of Chemical Ecology 9:1353-1361."
ACG study		"Rosenthal, G. A. and D. H. Janzen, eds.  1979.  Herbivores.  Their interaction with secondary plant metabolites .  Academic Press, New York., 718 pp."
ACG study		"Rosenthal, G. A., C. G. Hughes and D. H. Janzen.  1982.  L-canavanine, a dietary nitrogen source for the seed predator Caryedes brasiliensis (Bruchidae).  Science 217:353-355."
ACG study		"Rosenthal, G. A., Dahlman, D. L, and Janzen, D. H.  1978.  L-canaline detoxification: a seed predator's biochemical mechanisms.  Science 202:528-529."
ACG study		"Rosenthal, G. A., Dahlman, D. L., and Janzen, D. H. 1976.  A novel means for dealing with L-canavanine, a toxic metabolite.  Science 192:256-258."
ACG study		"Rosenthal, G. A., Dahlman, D. L., and Janzen, D. H. 1978.  L-canaline detoxification:  a seed predator's biochemical mechanism.  Science 202:528-529."
ACG study		"Rosenthal, G. A., Hughes, C. G., and Janzen, D. H. 1982.  L-canavanine, a dietary nitrogen source for the seed predator Caryedes brasiliensis (Bruchidae).  Science 217:353-355."
ACG study		"Rosenthal, G. A., Janzen, D. H., and Dahlman, D. L. 1977.  Degradation and detoxification of canavanine by a specialized seed predator.  Science 196:658-660."
ACG study		"Rowell, C. H. F. 1995.  New and little known taxa of Rhytidochrotinae (Acrididae, Orthoptera) from Costa Rica.  Revue Suisse de Zoologie 102:553-583."
ACG habitat elsewhere		"Sabogal, C. 1992.  Regeneration of tropical dry forests in Central America, with examples from Nicaragua.  Journal of Vegetation Science 3:407-416."
ACG study		"Salvatore, M.  J., A. B. King, A. C. Graham, H. R. Onishi, K. F. Bartizal, G. K. Abruzzo, C. J. Gill, H. G. Ramjit, S. M. Pitzenberger, and K. M. Witherup 1998.  Antibacterial activity of Lonchocarpol A.  Journal of Natural Products 61:640-642."
ACG study		"Sandlund, O. T.  1991.  Costa RicaÕs INBio: towards sustainable use of natural biodiversity.  Norwegian Institute for Nature Research (NINA).  Notat 007:1-25."
ACG study		"Sasa, M. and A. Solorzano 1995.  The reptiles and amphibians of Santa Rosa National Park, Costa Rica, with comments about the herpetofauna of xerophytic areas.  Herpetological Natural History 3(2):113-125."
ACG organism elsewhere		"Sauer, J. D.  1975.  Remnant seashore vegetation.  Madro–o 23:174-181."
ACG organism elsewhere		"Sauer, J. D.  1979.  Living fences in Costa Rican agriculture.  Turrialba 29:255-261."
ACG organism elsewhere		"Savage, J. M.  1966.  The origins and history of the Central American herpetofauna.  Copeia 4:719-766."
ACG organism elsewhere		"Savage, J. M.  1968.  A new red-eyed tree-frog (family Hylidae) from Costa Rica, with a review of the Hyla uranochroa group.  Bull. So. Calif. Acad. Sci. 67:1-20."
ACG organism elsewhere		"Savage, J. M.  1968.  The Dendrobatid frogs of Central America.  Copeia 4:745-766."
ACG organism elsewhere		"Savage, J. M.  1972.  The harlequin frogs, genus Atelopus of Costa Rica and western Panama.  Herpetologica 28:77-93."
ACG organism elsewhere		"Savage, J. M.  1973.  A preliminary handlist of the herpetofauna of Costa Rica.  Univ. So. Calif., Los Angeles, CA, 17 pp."
ACG organism elsewhere		"Savage, J. M.  1975.  Systematics and distribution of the Mexican and Central American stream frogs related to Eleutherodactylus rugulosus.  Copeia 2:254-306."
ACG organism elsewhere		"Savage, J. M.  1975.  Type localities for species of amphibians and reptiles described from Costa Rica.  Rev. Biol. Trop. 22:71-122."
ACG organism elsewhere		"Savage, J. M.  1976.  A preliminary handlist of the herpetofauna of Costa Rica.  Universidad de Costa Rica, Costa Rica, 2nd ed. 20 pp."
ACG habitat elsewhere		"Savage, J. M.  1976.  Introduccion.  Simposio international sobre la ecologia de la conservacion y del desarrollo en el Istmo Centroamericano.  Rev. Biol. Trop. 24(Supl. 1):1-4."
ACG organism elsewhere		"Savage, J. M. and M. H. Wake.  1972.  Geograhic variation and systematics of the middle American caecilians, genera Dermophis and Gymnopis.  Copeia 4:680-695."
ACG organism elsewhere		"Savage, J. M. and S. B. Emerson.  1970.  Central American frogs allied to Eleutherodactylus bransfordii (Cope): a problem of polymorphism.  Copeia 4:623-644."
ACG organism elsewhere		"Savage, J. M. and W. R. Heyer.  1967.  Variation and distribution in the tree-frog genus Phyllomedusa.  Beitrge zur Neotropischen Fauna 5:111-131."
ACG organism elsewhere		"Savage, J. M. and W. R. Heyer.  1969.  The tree-frogs (family Hylidae) of Costa Rica: diagnosis and distribution.  Rev. Biol. Trop. 16:1-127."
ACG organism elsewhere		"Schemske, D. W.  1975.  Territoriality in a nectar feeding northern oriole in Costa Rica.  Auk 92:594-595."
ACG organism elsewhere		"Schemske, D. W.  1975.  Time budget and foraging site preference of the cinnamon hummingbird in Costa Rica.  Condor 77:216-217."
ACG organism elsewhere		"Schemske, D. W.  1980.  Floral ecology and hummingbird pollination of Combretum farinosum in Costa Rica.  Biotropica 12:169-181."
ACG organism elsewhere		"Schmidt, A. T. 1988.  Uso de Baculovirus erinnyis para el control biologico del gusano cachon de la yuca.  Yuca Boletin Informativo, vol. 12:1.  "
ACG habitat elsewhere		"Schoener, T. W. and D. H. Janzen.  1968.  Notes on environmental determinants of tropical versus temperate insect size patterns.  Amer. Natur. 102:207-224."
ACG habitat elsewhere		"Schomer, B., B. Randall, et al 1982.  Preliminary report of the 1982 National Spelelogical Society Expedition to Costa Rica to study the caves of Barra Honda National Park in Guanacaste Province.  pp. 1-30.  Unpublished report."
ACG study		"Schroeder, D. R. and F. R. Stermitz 1985.  Isolation and synthesis of bishordeninyl terpene alkaloids.  Some experiments relating to the natural occurrence of formal diels-alder adducts.  Tetrahedron 41:4309-4320."
ACG organism elsewhere		"Schwaegli, J.  1974.  Die Organisation der Rindermast auf einem Betrieb in Costa Rica.  Tesis de Agronomo tropical.  Escuela Tropical Basil, Suiza."
ACG organism elsewhere		"Scott, N. J., Jr.  1969.  The zoogeography of the snakes of Costa Rica.  Doctoral Dissertation."
ACG organism elsewhere		"Scott, N. J., Jr.  1976.  The abundance and diversity of the herpetofaunas of tropical forest litter.  Biotropica 8:41-58."
ACG organism elsewhere		"Scott, N. J., Jr., A. F. Scott and L. A. Malmgren.  1976.  Capturing and marking howler monkeys (Alouatta palliata) for field behavioral studies.  Primates 17:527-533."
ACG organism elsewhere		"Scott, N. J., Jr., L. A. Malmgren and K. E. Glander.  1978.  Grouping behaviour and sex ratio in mantled howling monkeys.  In Recent advances in primatology, D. J. Chivers and J. Herbert eds., Academic Press, London, pp. 183-185."
ACG organism elsewhere		"Scriber, J. M. and R. C. Lederhouse 1996.  Illustrated field notes on Papilio astyalus in Costa Rica (Lepidoptera: Papilionidae).  Tropical Lepidoptera 7:119-120."
ACG study	ant-plant mutualisms	"Seigler, D. S., E. E. Conn, J. E. Dunn and D. H. Janzen.  1979.  Cyanogenesis in Acacia farnesiana.  Phytochemistry 18:1389-1390."
ACG habitat elsewhere		"Shane, D. R.  1980.  Hoofprints on the forest: an inquiry into the beef cattle industry in the tropical forest areas of Latin America.  Prepared for: Office of Environmental Affairs, U. S. Dept. of State, Washington, D. C., 205 pp."
ACG study		"Sharkey, M. J. and D. H. Janzen 1995.  Review of the world species of Sigalaphus (Hymenoptera: Braconidae: Sigalaphinae) and biology of Sigalaphus romeroi, new species.  Journal of Hymenoptera Research.  4:99-109."
ACG study		"Sheehan, W.1984.  Nesting biology of the sand wasp Stictia heros (Hymenoptera: Sphecidae: Nyssoniae) in Costa Rica.  Journal of the Kansas Entomological Society 57:377-386."
ACG organism elsewhere		"Silander, J. A.  1978.  Density-dependent control of reproductive success in Cassia biflora.  Biotropica 10:292-296."
ACG organism elsewhere		"Simberloff, D., L. King, P. Dillon, S. Lowrie, D. Lorence and E. Schilling.  1978.  Holes in the doughnut theory: the dispersion of ant-lions.  Brenesia 1415:13-46."
ACG study	parasitoids	"Sime, K. R. and A. V. Z. Brower 1998.  Explaining the latitudinal gradient anomaly in ichneumonid species richness: evidence from butterflies.  Journal of Animal Ecology 67:387-399."
ACG study		"Singh, S. B., et al 1996.  Apicidins: novel cyclic tetrapeptides as coccidiostats and antimalarial agents from Fusarium pallidoroseum.  Tetrahedron Letters 37:8077-8080.  "
ACG study		"Sittenfeld, A. and R. G‡mez 1991.  Merck deal with Costa RicaÕs INBio offers model for future.  Business and the Environment 2:1. "
ACG study		"Sittenfeld, A. and R. G‡mez 1992.  Building partnerships to save tropical biodiversity: the INBio-Merck agreement.  Network 18:4.  "
ACG study		"Sittenfeld, A. and R. Villers 1993.  Exploring and preserving biodiversity in the tropics: the Costa Rican case.  Current Opinion in Biotechnology 4:280-285."
ACG organism elsewhere		"Smith, S. M.  1976.  Predatory behavior of young turquoise-browed motmots, Eumomota superciliosa.  Behaviour 56:306-320."
ACG organism elsewhere		"Smith, S. M.  1977.  The behavior and vocalizations of young turquoise-browed motmots.  Biotropica 9:127-130."
ACG habitat elsewhere		"Smith, S. M.  1978.  The impact of the O.T.S. on the ecology of Costa Rica.  Texas Journal of Science 30:282-289."
ACG organism elsewhere		"Sole, C. V.  1982.  Animales y plantas comunes de las costas de Costa Rica.  UNED, San Jose, Costa Rica, Serie Educacion Ambiental No. 6, 147 pp."
ACG organism elsewhere		"Sol—rzano, A. 1989.  Distribuci—n y aspectos reproductivos de la mano de piedra Bothrops nummifer (Serpentes: Viperidae), en Costa Rica.  Rev. Biol. Tropical 37:133-137."
ACG organism elsewhere		"Sol—rzano, A. and L. Cerdas 1988.  Biolog’a reproductiva de la cascabel centroamericana Crotalus durissus durissus (Serpentes: Viperidae) en Costa Rica.  Rev. Biol. Trop. 36:221-226."
ACG organism elsewhere		"Sol—rzano, A. and L. Cerdas. 1988.  Ciclos reproductivos de la serpiente coral Micrurus nigrocinctus (Serpentes: Elapidae) en Costa Rica.  Rev. Biol. Trop. 36:235-239.  "
ACG organism elsewhere		"Sol—rzano, A. and L. Cerdas.  1989.  Reproductive biology and distribution of the terciopelo, Bothrops asper Garman (Serpentes: Viperidae), in Costa Rica.  Herpetologica 45:444-450."
ACG organism elsewhere		"Sol—rzano, A., JosŽ Mar’a GutiŽrrez and L. Cerdas.  1988.  Bothrops ophryomegas Bocourt (Serpentes: Viperidae) en Costa Rica: distribuci—n, lepidosis, variaci—n sexual y cariotipo.  Rev. Biol. Trop. 36:187-190."
ACG organism elsewhere		"Soto, R. 1988.  Geometry, biomass allocation and leaf-span of Avicennia germinans (L.) (L.) Avicenniaceae) along a salinity gradient in Salinas, Puntarenas, Costa Rica.  Rev. Biol. Trop. 36:309-323.  "
ACG organism elsewhere		"Soto, R. y L. F. Corrales 1987.  Variac’on de algunas caracter’sticas foliares de Avicennia germinans (L.) L. (Avicenniaceae) en un gradiente clim‡tico y de salinidad.  Rev. Biol. Trop. 35:245-256."
ACG organism elsewhere		"Spight, T. M.  1976.  Censuses of rocky shore prosobranchs from Washington and Costa Rica.  Veliger 18:309-317."
ACG organism elsewhere		"Spight, T. M.  1977.  Diversity of shallow-water gastropod communities on temperate and tropical beaches.  Amer. Natur. 111:1077-1097."
ACG organism elsewhere		"Stahl, B. 1989.  A synopsis of Central American Theophrastaceae.  Nordic Journal of Botany 9:15-30.  "
ACG study	freshwater aquatic	"Standley, L. J. and B. W. Sweeney 1995.  Organochlorine pesticides in stream mayflies and terrestrial vegetation of undisturbed tropical catchments exposed to long-range atmospheric transport.  Journal of the North American Benthological Society 14:38-49."
ACG study		"Starr, C. K. 1988.  The ins and outs of a tropical social wasp nest.  Proc. Ent. Soc. Wash. 91:26-28.  "
ACG study		"Starr, C. K. 1988.  The nesting association of the social wasps Mischocyttarus immarginatus and Polybia spp. in Costa Rica.  Biotropica 20:171-173."
ACG organism elsewhere		"Starrett, P. H. and J. M. Savage.  1973.  The systematic status and distribution of Costa Rican glass frogs, genus Centrolenella (family Centrolenidae), with description of a new species.  Bull. So. Calif. Acad. Sci. 72:7-77."
ACG study		"Stevens, G. C. 1987.  Lianas as structural parasites: the Bursera simaruba example.  Ecology 68:77-81.  "
ACG study		"Stewart, J. L., G. E. Allison and A. J. Simons 1996.  Gliricidia sepium.  Genetic resources for farmers.  Tropical Forestry Papers (Oxford Forestry Institute, University of Oxford) 33:1-125."
ACG habitat elsewhere		"Stout, J. and J. H. Vandermeer.  1975.  Comparison of species richness for stream-inhabiting insects in tropical and mid-latitude streams.  Amer. Natur. 109:263-280."
ACG organism elsewhere		"Stowe, K. A. 1995.  Intracrown distribution of herbivore damage on Laguncularia racemosa in a tidally influenced riparian habitat.  Biotropica 27:509-512."
ACG habitat elsewhere		"Strong, D. R., Jr.  1977.  Insect species richness: hispine beetles of Heliconia latispatha.  Ecology 58:573-582."
ACG habitat elsewhere		"Strong, D. R., Jr.  1977.  Rolled-leaf hispine beetles (Chrysomelidae) and their Zingiberales host plants in Middle America.  Biotropica 9(3):156-169."
ACG organism elsewhere		"Suter, C.  1969.  Von der vogelwelt der Hacienda La Pacifica.  CIBA Blatter 223. Basel."
ACG study	freshwater aquatic	"Sweeney, B. W., J. K. Jackson and D. H. Funk 1995.  Semivoltinism, seasonal emergence, and adult size variatioin in a tropical stream mayfly (Euthyplocia hecuba).  Journal of the North American Benthological Society 14:131-146."
ACG organism elsewhere		"Talbot, J. J. and J. M. Savage.  1978.  The giant anoline lizards of Costa Rica and western Panama.  Copeia 3:480-492."
ACG organism elsewhere		"Thomas, D. W., D. Cloutier, M. Provencher, and C. Houle.  1988.  The shape of bird- and bat-generated seed shadows around a tropical fruiting tree.  Biotropica 20:347-348. "
ACG study		"Tucker, S. C. 1990.  Loss of floral organs in Ateleia (Leguminosae: Papilionoideae: Sophoreae).  American Journal of Botany 77:750-761."
ACG organism elsewhere		"Turner, D. C.  1975.  The Vampire Bat: a field study in behaviour and ecology.  Johns Hopkins University Press, Baltimore.  145 pp."
ACG habitat elsewhere		"Uhl, C. and R. Buschbacher 1985.  A disturbing synergism between cattle ranch burning practices and selective tree harvesting in the eastern Amazon.  Biotropica 17:265-268.  "
ACG organism elsewhere		"Uhl, Natalie W. and H. E. Moore, Jr.  1977.  Correlations of inflorescence, flower structure, and floral anatomy with pollination in some Pa