Results 11 to 20 of about 262,620 (263)
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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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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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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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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Scientific Reports, 2017 Antennal and abdominal transcriptomes of males and females of the coconut hispine beetle Brontispa longissima were sequenced to identify and compare the expression patterns of genes involved in odorant reception and detection.
Shu-Ying Bin +5 more
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Biogeography: Are Tropical Species Less Specialised? [PDF]
Current Biology, 2012 Species richness increases from the poles to the tropics, which has led to the view that interactions in tropical species are more specialised. A new study on pollinators and seed dispersers finds that tropical interactions are in fact less specialised.
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Acta Amazonica, 2005 Studies on nutritional status and leaf traits were carried out in two tropical tree species Swietenia macrophylla King (mahogany) and Dipetryx odorata Aubl. Willd.
José Francisco de C. Gonçalves +5 more
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Pesquisa Agropecuária Brasileira, 2005 This study was carried out to assess the genetic variability of ten "cagaita" tree (Eugenia dysenterica) populations in Southeastern Goiás. Fifty-four randomly amplified polymorphic DNA (RAPD) loci were used to characterize the population genetic ...
Maria Imaculada Zucchi +6 more
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