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| 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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| Zima,Paulo V.Q.; Francisco,Mercival R.. |
| ABSTRACT Several behavioral aspects of the Red-crested Finch Coryphospingus cucullatus (Statius Müller, 1776) are poorly studied. Here we provide reproductive information on 16 active nests. This information may be valuable to elucidate the phylogenetic relationships of this bird, and to design plans to manage it. Nesting activities occurred from October to February. Clutches consisted of two to three eggs (2.06 ± 0.25), which were laid on consecutive days. Incubation usually started the morning the females laid their last egg and lasted 11.27 ± 0.47 days. Hatching was synchronous, or happened at a one-day interval. The nestling stage lasted 12 ± 0.89 days. Only females incubated the eggs and they fed the young more often than the males did. Overall... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Birds; Breeding biology; Nesting; Tachyphoninae. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000400300 |
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| Perrella,Daniel F.; Piacentini,Vitor Q.; Zima,Paulo V.Q.; Biagolini-Jr.,Carlos; Ribeiro-Silva,Lais; Francisco,Mercival R.. |
| ABSTRACT Even though nest architecture has been useful for phylogenetic inferences among the Thamnophilidae (Aves: Passeriformes), the nests of only three out of five species of Myrmoderus (Ridgway, 1909) are known to science. Here we describe the nests, eggs, and nestling of the Squamate Antbird Myrmoderus squamosus (Pelzeln, 1868). Two nests were bulky bottom-supported cups, measuring 7.3 and 12 cm in maximum outside diameter, with a noticeably smaller egg cup, and they were placed within the crown of short, broad-leafed plants. Eggs were short-oval, with chalky white background color, and purple blotches and streaks more concentrated in the large end. One nestling was dark reddish grey, with bluish white feet, pinkish gray tarsi, and a blackish bill... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Myrmeciza; Nest type; Phylogeny; Taxonomy. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100320 |
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| Biagolini-Jr,Carlos; Costa,Mariellen C.; Perrella,Daniel F.; Zima,Paulo V.Q.; Ribeiro-Silva,Lais; Francisco,Mercival R.. |
| ABSTRACT Over the last two decades, several studies have shown that the mating systems of various birds are more complex than previously believed, and paternity tests performed with molecular techniques have proved, for instance, that the commonly observed social monogamy often presents important variations, such as extra-pair paternity. However, data are still largely biased towards temperate species. In our study, at an area of the Brazilian Atlantic Forest, we found broods containing at least one extra-pair young (EPY) in the socially monogamous White-necked Thrush Turdus albicollis (Vieillot, 1818). Paternity tests using six heterologous microsatellite loci revealed that four of 11 broods (36.4%) presented at least one extra-pair young (EPY). This rate... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Cuckoldry; Extra-pair copulation; Infidelity; Social monogamy. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000404002 |
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