Results 11 to 20 of about 940,447 (307)
Migration and Species Diversity in the Tropics [PDF]
Proceedings of the National Academy of Sciences, 1974 If the young of a dominant species are subjected to disproportionately heavy predation, this, together with a limitation on food, can promote a high species diversity. This is seen among tropical birds, which are simultaneously exposed to both conditions to a far greater degree than are Temperate Zone species.
P H, Klopfer +3 more
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Environmental Synergisms and Extinctions of Tropical Species [PDF]
Conservation Biology, 2009 Abstract: Environmental synergisms may pose the greatest threat to tropical biodiversity. Using recently updated data sets from the International Union for Conservation of Nature (IUCN) Red List, we evaluated the incidence of perceived threats to all known mammal, bird, and amphibian species in tropical forests.
Laurance, William F., Useche, Diana C.
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Inferring species interactions in tropical forests [PDF]
Proceedings of the National Academy of Sciences, 2009 We present 2 distinct and independent approaches to deduce the effective interaction strengths between species and apply it to the 20 most abundant species in the long-term 50-ha plot on Barro Colorado Island, Panama. The first approach employs the principle of maximum entropy, and the second uses a stochastic birth–death model.
VOLKOV I +3 more
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Herbicide Selectivity in Tropical Ornamental Species [PDF]
Planta Daninha, 2016 ABSTRACT This study evaluated the selectivity of herbicides applied post-emergence on ornamental plants of Alpinia purpurata, Strelitzia reginae and Heliconia psittacorum. The study was conducted in two seasons. The experimental design was completely randomized with four replications.
Queiroz, J. R. G. +2 more
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Predicting species diversity in tropical forests [PDF]
Proceedings of the National Academy of Sciences, 2000 A fundamental question in ecology is how many species occur within a given area. Despite the complexity and diversity of different ecosystems, there exists a surprisingly simple, approximate answer: the number of species is proportional to the size of the area raised to some exponent. The exponent often turns out to be roughly 1/4.
Plotkin, Joshua B +12 more
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Global analysis of threat status reveals higher extinction risk in tropical than in temperate bird sister species [PDF]
, 2019 Given increasing pressures upon biodiversity, identification of species’ traits related to elevated extinction risk is useful for more efficient allocation of limited resources for nature conservation.
Reif, Jiří, Štěpánková, Klára
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Upscaling species richness and abundances in tropical forests [PDF]
Science Advances, 2017 We provide a framework to upscale biodiversity in tropical forests from local samples of species richness and abundances.
A. Tovo +7 more
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Coffee and Cocoa Research Journal, 2018 Shade-trees with energy use in coffee plantations are an important alternative to increase profitability in groforestry systems. The aim of this study was to investigate gross calorific value (GCV) of 15 shade-tree species in coffee plantations in Costa ...
Roger Moya +2 more
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Palm phytoliths of mid-elevation Andean forests [PDF]
, 2018 Palms are one of the most common tropical plant groups. They are widespread across lowland tropical forests, but many are found in higher altitudes have more constrained environmental ranges.
Huisman, Seringe N. +2 more
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Food Reward and Distance Influence the Foraging Pattern of Stingless Bee, Heterotrigona itama
Insects, 2018 Beekeeping with stingless bee provides new opportunities to improve the incomes of many households in Malaysia through the sale of honey and other bee products. While Heterotrigona itama is one of the most commonly cultured species of stingless bees, its
Norasmah Basari +2 more
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