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| Tardin,Rodrigo H. O.; Especie,Mariana A.; Nery,Mariana F.; D'Azeredo,Felipe T.; Simão,Sheila M.. |
| Differences in distribution, prey species, season and social learning opportunities influence the feeding tactics used by marine mammals. Here, we analyze the coordinated feeding behavior of the Guiana dolphin, Sotalia guianensis (Van Bénéden, 1864, Delphinidae) and its relation to seasonality and the presence of calves. In a total of 201 feeding bouts, we observed four types of coordinated feeding tactics, which differed in frequency and in mean number of engaged individuals. Tactics in which dolphins used their bodies to herd and capture prey were the most frequent, presenting a higher frequency and engaging a higher number of individuals, suggesting that these tactics are better for capturing fishes which form larger schools. Furthermore, the seasons... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behavioral flexibility; Feeding repertoire; Social foraging; Social learning. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000300002 |
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| Aguiar,Lucas M.; Cardoso,Raphael M.; Back,Janaína P.; Carneiro,Eduarda C.; Suzin,Adriane; Ottoni,Eduardo B.. |
| Capuchin monkeys, Sapajus Kerr, 1792, are known for their flexible behavior, including tool use, and their ability to survive in urban forests. We observed capuchin juveniles using wood as hammer and anvil and different materials as sponges (four tool-use events) in two geographically distinct urban populations in Brazil, in 2012: two in Goiânia, Central Brazil and two in Foz do Iguaçu, Southern Brazil. In Goiânia, a male used a detached tree branch as a hammer and a buttress root as an anvil to pound a seed of Terminalia Linnaeus. Another male used a small branch with leaves as a dipping tool to access water inside a tree trunk hole. In Foz do Iguaçu, the capuchins used a small branch and a piece of bread to obtain water by dipping them into tree trunk... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal self-control; Behavioral flexibility; Food provisioning; Urban wildlife; Values of nature conservancy. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000500012 |
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