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The effects of Xanthosoma spp. (Araceae) temperature, scent, and flowers on the mating frequency of Cyclocephala sexpunctata (Scarabaeidae)




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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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Effect of color and height on oviposition preference and attraction of volant insects




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




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Species specific Müllerian body production and anti-herbivore defense in the Azteca- Cecropia mutualism




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Effects of habitat on avian antipredator behavior




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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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Precipitation variation and its effects on the reproductive success and survival of Lepanthes jimenezii (Orchidaceae)




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Effect of colony size on age structure and behavior of Metabus gravidus (Araneidae) in the Monteverde Cloud Forest




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Assessing the effects of new and old conservation policies in Costa Rica




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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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Seed toughness in Persea americana (Lauraceae) and Dioclea reflexa (Papilionaceae) and feeding behavior in agoutis (Dasyprocta punctata)




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The effects of farming practices on nectar quality and quantity in Coffea spp




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




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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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Maternal defensive behavior of Umbonia ataliba treehoppers




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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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Oviposition preference and larval growth rates of Caligo memnon (Nymphalidae : Brassolinae)




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Effects of trail traffic on egg-predation by mammal populations in the Monteverde Cloud Forest Preserve




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The role of size and defensive compounds in mate choice by Nyssodesmus python (Polydesmida: Platyrhacidae)




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Effects of weather conditions on pollinator behavior at Stachytarpheta jamaicensis (Verbenaceae)




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Effect of herbivory on succession of forest light gaps




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Effect of color and territoriality on hummingbird visitation to feeders in Monteverde, Costa Rica




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Leaf toughness and cyanide defense of Passiflora dioscoreifolia in varied light habitats




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The effect of whey on the growth and survival of Isthmohyla pseudopuma tadpoles




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The mosaic effect habitat fragmentation and microhabitat partitioning among three wren species in San Luis, Costa Rica




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Amphibian adaptability to habitat transformation and the effect of rainfall during the dry season on their activity pattern




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




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Nectarivorous bat (Anoura geoffroyi, Glossophaga soricina and Hylonycteris underwoodi) preference for nectar quality




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




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Defense mechanisms of Nyssodesmus python (Polydesmidae)




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




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Effects of forest fragmentation on stem length, age, and reproduction on an understory palm species Chamaedorea pinnatifrons (Arecaceae)




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Effects of ecotourism on mammal diversity in the Monteverde cloud forest preserve




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Feeder position preferences in response to potential and artificial predators in hummingbirds




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The effects of phosphorus, copper, and plant age on mycorrhizal abundance in orchid roots




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Pit-trap construction decisions by wormlions (Diptera Vermileonidae) effects of substrate moisture and larval density




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Effect of ground temperature and nest differences on productivity and worker size in Atta cephalotes (Hymenoptera Formicidae)




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Habitat preference of Leptonema sp. (Trichoptera : Hydropsychidae) on tropical waterfalls




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Non-vocal sounds produced by the wings of Inca doves, Columbina inca, and seasonal effects on communication behavior in Costa rican dry-moist lowland forest




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Effects of resource partitioning on the behavior and foraging activity of the Coppery headed emerald and the purple throated mountain gem hummingbirds (Trochilidae)




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Effect of Cecropia polyphlebia, Cecropia obtusifolia, and Bidens pilosa on human lung capacity




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Duet response songs and territorial defense in the gray-breasted wood wren (Henicorhina leucostica Troglodytidae)




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The effect of land use on stream water quality in San Luis and Cañitas