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Testing camera traps as a potential tool for detecting nest predation of birds in a tropical rainforest environment Rev. Bras. Zool.
Ribeiro-Silva,Lais; Perrella,Daniel F.; Biagolini-Jr,Carlos H.; Zima,Paulo V.Q.; Piratelli,Augusto J.; Schlindwein,Marcelo N.; Galetti Junior,Pedro M.; Francisco,Mercival R..
ABSTRACT Identification of the predators of bird nests is essential to test ecological and evolutionary hypotheses and to make practical management decisions. A variety of nest monitoring devices have been proposed but many remain difficult to set up in the field. The aim of this study was to test camera traps as a potential tool to study predation of natural nests in a tropical rainforest environment. Specifically, we registered the predators, assessed their size range, and we compared the use of one and two cameras per nest. Of 122 nests from 24 bird species, 45 (37%) were depredated, and the cameras recorded the predator species in 29 of the total of depredated nests (64%). We identified predators in eight of 16 depredated nests (50%) in which we used...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Nest monitoring; Nest predators; Nesting success.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100326
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Factors affecting escape distance in birds Rev. Bras. Zool.
Piratelli,Augusto J.; Favoretto,Gabriela R.; Maximiano,Marina F. de Almeida.
ABSTRACT The flight initiation distance has been used either to understand the cost-benefit trade-offs related to the risk of predation or as an important tool for wildlife managers. Although this variable is well-discussed for temperate regions, it is still poorly known in the Neotropics. Here we analyze the escape behavior of birds from southeastern Brazil, comparing an urban to a non-urban area. We tested for the influence of sites (urban vs. non-urban area), approaching (by one vs. two people), daytime (morning vs. afternoon), seasons (breeding vs. non-breeding) and body mass on the determination of the initial (FID) and final (FFD) flight distances across different bird species. We predict that FID will be greater in rural areas and under a greater...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Behavior; Energetic; Neotropical; Predation; Urban.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000600438
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