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




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Factors influencing dispersal and population structure of phoretic mites in Centropogon solanifolius (Campanulaceae) and Columnea spp. (Gesneriaceae)




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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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Going batty : response of foraging glossophagine bats to auditorily perceived predator presence




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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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Pollen diversity on male Hylonycteris underwoodi (Glossophaginae)




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Determining avian vulnerability to ectoparasites using morphological and natural history traits




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Tropical cloud forest canopy and subcanopy adapt to different light environments by regulating photosynthetic pigments




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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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Mycorrhizal fungi in aerial and terrestrial roots of an epiphytic and two terrestrial species of Orchidaceae




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Phenology and phoretic bat mites of Calyptrogyne brachystachys (Arecaceae) flowers in the Monteverde Cloud Forest




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




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




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Species richness of epiphytic vascular plants living on Catura and Híbrido coffee varieties in San Luís, 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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Foraging efficiency and polymorphism of the submajor caste in E. burchellii




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Fruit presentation and its discovery and removal by frugivorous bats (Phyllostomidae)




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Influence of soil pH on abundance of mycorrhizae in a coffea arabica (Rubiaceae) plantation




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




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




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




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Factors affecting herbivory on Daphnopsis americana (Thymelaeaceae)




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Differences in Atta cephalotes foraging rate and amount of substrate harvested following the introduction of an antifungal agent




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Leaf area, worker size, and number of hitchhiking minima in Atta cephalotes




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Subcaste composition in responses to alarm and non-alarm pheromones on foraging trails of leaf-cutter ant Atta cephalotes (Hymenoptera: Formicidae)




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




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Absence of polarity in trail pheromones and use of sun-compass orientation in leafcutter ants Atta cephalotes




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Rodent island biogeography within a fragmented tropical montane cloud forest mosaic




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Abundance of arbuscular mycorrhizae in epiphytic Orchidaceae : abiotic, biotic and taxonomic factors




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Anthocyanins and delayed greening : Inhibition of leafcutter ants (Atta cephalotes) in Inga punctata (Mimosaceae) and Zygia palmana (Fabaceae)




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Community composition and chlorophyll levels in lichens as indicators of atmospheric pollution in Monteverde, Costa Rica




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How ecotourism is felt throughout the greater Monteverde region with an emphasis on local happiness




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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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Crop size, ripening, and fruit removal in Solanum umbellatum (Solanaceae) by Phyllostomid bats




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




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Leaf choice in Dryas iulia (Nymphalidae Heliconiinae) cyanide content and toughness




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Effect of the parasite Ophryocystis elektroscirrha on asymmetry and wing color of the monarch butterfly, Danaus plexippus




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Effects of inbreeding on morphology and reproduction in Morpho peleides (Nymphalidae)




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Shifts in flowering phenology in response to irregular precipitation and temperature patterns in Monteverde




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Size-related niche-partitioning of epiphytic orchids in Cloud Forest canopies




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Site fidelity in two species of Cyclocephala (Scarabaeidae) to Xanthosoma robumstum (Araceae)




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Functional differences among color morphs of Impatiens walleriana (Balsaminaceae)




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Trail width and epiphyllous coverage of Chamaedorea spp




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Presence of protozoan parasite Ophryocystis elektroscirrha (Neogregarinda: Ophryocystidae) in populations of butterflies in Monteverde, Costa Rica




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Palm epiphylls response to elevation and mist frequency in a Costa Rican cloud forest : A possible bioindicator of local climate change




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Behavioral transitions during metamorphosis: Skototropism’s successors