Distribuição da onça-pintada (carnivora: felidae) ao longo de uma paisagem antropizada: implicações para o manejo e conservação da espécie
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2010-02-22
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Universidade Federal de Goiás
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We studied here the determinant factors of jaguar presence in a fragmented landscape, with
implications to design and management of ecological corridors. In the first chapter, we
evaluated the spatially structured effect of the natural preys’ richness on the jaguar occurrence
and livestock depredation, as well as the vegetation cover influence on these processes. Our
results show that jaguar occurrence is strongly determined by preys richness and the spatial
component, showing that preys’ richness raises local quality and spatial aggregation acts in a
positive way to this species. Otherwise, livestock predation, does not present a spatial
component, being directly related to predator’s abundance. For the last, we highlight the
absence of a vegetation cover effect on prey species richness and livestock depredation. In the
second chapter, we test the effect of the area and isolation of natural fragments, agriculture
intensity and spatial structure on jaguar presence. We verify that agriculture may represent a
barrier to the jaguar dispersion and the presence of a larger natural fragment among other
small patches increases the probability of jaguar presence. These results show that this species
is efficient colonizing natural vegetation patches and the stepping stones can be used in
conservation strategies to keep or reestablish connectivity in a landscape for the jaguar.
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GREGORINI, Marina Zanin. Distribuição da onça-pintada (carnivora: felidae) ao longo de uma paisagem antropizada: implicações para o manejo e conservação da espécie. 2010. 93 f. Dissertação (Mestrado em Ecologia e Evolução) - Universidade Federal de Goiás, Goiânia, 2010.