Mudanças sutis na elevação determinam a estrutura das assembleias de morcegos Phyllostomidae na Amazônia central
The spatial distribution of bat species has been linked to environmental factors resulting from landscape variation within ecosystems. However, within the same type of vegetation there are subtle differences that could potentially be associated with variations in bat assemblage composition. In th...
| Autor principal: | Capaverde Junior, Ubirajara Dutra |
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| Grau: | Tese |
| Idioma: | por |
| Publicado em: |
Instituto Nacional de Pesquisas da Amazônia - INPA
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/12297 http://lattes.cnpq.br/5358233020300709 |
| Resumo: |
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The spatial distribution of bat species has been linked to environmental factors resulting from
landscape variation within ecosystems. However, within the same type of vegetation there are
subtle differences that could potentially be associated with variations in bat assemblage
composition. In the present study we evaluated the effect of food availability (fruits and
insects), physical obstruction of vegetation and relief elevation in structuring phyllostomid
bats assemblies in a flooded forest. The bats were captured using eight mist nets within 49
parcels over a 25 km2 section of the Ducke Reserve, central Brazilian Amazonia. In 7056 net-
hours, 1138 individuals were captured belonging to 52 species. Elevation was the most
important variable structuring species composition and abundance of bats assemblages.
Suprisingly, the availability of plants with fruit was only the second most important variable
in explaining assemblage composition in this group of frugivorous bats. Results indicated
that, in general, composition of the understory of bat assemblage is related to local relief,
however, for frugivorous species, food supply has greater influence on species distribution. |