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Human population density effects on soil nematode abundance and nitrogen levels




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Captive breeding causes small body size in Morpho peleides limpida (Nymphalidae : Morphinae)




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Atta cephalotes (Formicidae) as a reliable bioassay for anti-fungal compounds in plants of Monteverde, Costa Rica




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Wing color and mating preferences of Heliconius sara




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Eciton burchellii : polymorphism of submajor caste and foraging efficiency




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Guidelines for sustainable ecotourism in Monteverde, Costa Rica




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The effects of elevation and land use on ant activity and ant species diversity




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Riparian microhabitat selection by Norops oxylophus (Polychrotidae) in San Luis, Costa Rica




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Population abundance, sexual expression, and gender ratios of Marchantia sp. along an elevational gradient in Monteverde, Costa Rica




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Allelopathic effects on leaf litter invertebrates under Dicksonia gigantea (Polypodiopsida : Dicksoniaceae) and Cyathea caracasana var. meridensis (Polypodiopsida: Cyatheaceae)




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Body size and sexual selection in Heliconius charitonius and Heliconius melpomene (Lepidoptera : Nymphalidae)




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Herpetofauna distribution and species richness along an elevational gradient




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Feeding preferences of captive Morpho peleides at the Monteverde Butterfly Garden




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Effect of minima on the velocity of the workers in Atta cephalotes




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Passiflora (Passifloraceae) defenses against Heliconius cydno (Nymphalidae: Heliconiinae) oviposition




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The role of cyanide in oviposition by Heliconius (Nymphalidae : Heliconiinae) on Passiflora (Passifloraceae)




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Mycorrhizal fungi in epiphytic and terrestrial Oerstedella exasperata (Orchidaceae)




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Selection for survival : soil grain size preference and body size in wormlion (Vermilio sp.) larvae affect pit trap construction




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Evidence of subsocial behavior through analysis of prey capture and feeding in a new species of Anelosimus (Araneae : Theridiidae)




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Discrimination of aposematic and novel prey by mature Sceloporus malachiticus




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Patch fidelity behavior in coexisting damselflies : Hetaerina cruentata (Odonata : Calopterygidae) and Argia extranea (Odonata: Coenagrionidae)




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Relationship between floral advertisement and pollinia removal in Oerstedella exasperata (Orchidaceae)




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The effect of wing color on Heliconius melpomene mating behavior and its implications on the evolution of mimicry




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Microclimate effects on cyphellae density in Sticta lichens




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Nutrient availability and protist abundance in cloud forest Bromeliads




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Community composition Coleopteran’s at two different elevational ranges




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Distributions of epiphytic orchids and bromeliads on secondary forest and pasture trees




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Selective bromeliad foraging in Cebus capucinus along a tropical premontane wet forest edge




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Age and sex-related activity in white-nosed coatis (Nasua narica)




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The role of size, social interaction and predation on metachrosis of the green spiny lizard (Sceloporus malachiticus)




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Importance of flower size and yellow coloration as influencing factors in the reproductive success of Pleurothallis sanchoi (Orchidaceae)




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Associative color learning and age in Heliconius butterflies




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Associative learning in relation to foraging of Neotropical stingless bee Trigona




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Bridge building and foraging efficiency in the army ant Eciton burchellii




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Effect of resource manipulation on aggression in the Steely-vented hummingbird (Amazilia saucerrottei)




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Effects of Passiflora cyanide, toughness and leaf age on Heliconius oviposition




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Foliage dwelling insect composition in three stages of forest regeneration




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Foraging efficiency and polymorphism of the submajor caste in E. burchellii




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Optimal foraging in leafcutter ants (Atta cephalotes) selection of leaves based on proximity to the nest




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Plants with specialist relationships show higher rates of asexual reproduction from fragments




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Prey preference of Megaphobema mesomelas (theraphosidae) in relation to prey abundance and chemical defense




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Bee and wasp diversity and abundance along an elevational gradient, Monteverde, Costa Rica




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Coleopteran diversity on an elevational gradient in Monteverde, Puntarenas, Costa Rica




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Effects of novel object versus predator presence on nectarivorous bat foraging behavior




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Forest regeneration under Ficus tuerckheimii and Sideroxylon portoricense in former pasturelands




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Factors affecting herbivory on Daphnopsis americana (Thymelaeaceae)




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Aquatic insect diversity and abundance in relation to dissolved oxygen content in streams in the Tilarán mountain range




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Macroinvertebrate diversity in Heliconia tortuosa along an elevational gradient




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Development of cane toad (Chaunus marinus) tadpoles in the presence of intraspecific and interspecific competition under resource limiting conditions




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Spatial distribution of nectar in Lantana camara and visitation by Heliconius butterflies