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The use of macroinvertebrates as water quality indicators along two streams in a disturbed landscape in Cañitas, 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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Aquatic macro-invertebrate community composition differences between the Atlantic and Pacific watersheds in Monteverde, Costa Rica




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




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Floral color change and maintenance of old flowers in Lantana camara (Verbenaceae)




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




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Mist frequency and butterfly emergence from the chrysalis: Implications for tropical cloud forest climate change




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




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Pollination syndrome and nectar protection in Brugmansia suaveolens (Solanaceae)




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




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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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Macroinvertebrate diversity in Heliconia tortuosa along an elevational gradient




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Buttresses as microhabitats for leaf-litter macroinvertebrates




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




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




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




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Upslope movements of bird species in four life zones in Monteverde as a result of directional climate change




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Change in biodiversity in the inflorescence of Xanthosoma robustum (Araceae) during the flowering period




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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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Optimal energy allocation and behavior modification in provisioning Crawfordapis luctuosa




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Diversity of macroinvertebrate feeding guilds along a stream order continuum in San Luis Valley, Costa Rica




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




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Responses to prey size in Metabus gravidus (Araneae: Araneidae) provide evidence for optimal foraging




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Sleep site selection in three species of Norops lizards (Squamata Polychrotidae) in the San Luis Valley, Puntarenas, Costa Rica




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Supernormal stimulus as a mimicry strategy the case for Epidendrum radicans (Orchidaceae)




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




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




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Understanding the effects of secondary succession on soil nutrient concentration and soil macro-invertebrates




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The abundance of the vector insect, Triatoma dimidiata (Reduviidae) and the ecology of infection with Trypanosoma cruzi




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Effects of Trichoderma harzianum perimeter applications on preventing Mycena citricolor in Coffea arabica plots




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Climate change and Uredinales (rust fungi) on Pleurothallid orchids in Monteverde




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Trail width and epiphyllous coverage of Chamaedorea spp




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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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Anthropogenic impacts upon neotropical mammal communities




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Discharge and drift of benthic macroinvertebrates in a tropical montane stream




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Evidence for floral mimicry in Epidendrum radicans (Orchidaceae) with Asclepias curassavica (Apocynaceae) and Lantana camara (Verbenaceae)




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Foraging patterns of male Tiaris olivacea (Yellow-Faced Grassquits) in different flock sizes




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Effects of fragmentation and human disturbance on mammal communities in San Luis and Monteverde, Costa Rica




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Ithomiinae visitation to a source of Pyrrolizidine Alkaloids (Ageratum cf. reedii) and proximity to mating leks




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Macroinvertebrate communities and streambed substrates of a dammed stream in Monteverde, Costa Rica




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High variation in impact in point source pollution on water quality and macroinvertebrate communities in a tropical highland stream




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Stream site selection of Hyalinobatrachium fleischmanni (Centrolenidae)




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Worker size, load mass, speed, and foraging efficiency in Atta cephalotes




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Dung beetle response in relationship to manure location




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Quercus Anpotius, Ilex Marilandica folio longo angusto salicis, Willow Oak; Picus Maximus rostro Albo, Largest White-Billed Wood-pecker.




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A map of Carolina, Florida and the Bahama Islands with the Adjascent Parts




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Magnolia altissima, The Laurel-Tree of Carolina




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Manifesto




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Frank Reade, Jr., and his magnetic gun-carriage; or, Working for the U. S. mail