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Predation on artificial nests in open habitats of central Brazil: effects of time and egg size Biota Neotropica
Oliveira,Cleyton Washington da Silva; Almeida,Glaudson Pereira; Paiva,Luciana Vieira de; França,Leonardo Fernandes.
The accuracy of artificial nests in representing natural patterns of nest predation has been widely studied in temperate regions and egg size is one of the most tested sources of bias. In the neotropics, experiments with artificial nests usually used larger than natural eggs, despite suggestions in literature that the eggs should be similar to those of the local species. Here, we tested the hypothesis of spatial-temporal variation in predation risk of artificial nests in relation to egg size. We used quail (Coturnix coturnix; large), Chestnut-bellied Seed-finch (Oryzoborus angolensis; small) and plasticine (both sizes) eggs placed in artificial nests. We analyzed daily nest survival using models in the Program MARK. The best-fit model included the effects...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bird; Cerrado; Neotropical savanna; Nest success; Reproduction.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000100016
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