Terrestrial foraging by cacajao melanocephalus ouakary (primates) in Amazonian Brazil: Is choice of seed patch size and position related to predation risk?
We analyse the behaviour of Cacajao melanocephalus ouakary feeding at patches of germinating seedlings in dried-out flooded forest. Seedlings of Eschweilera tenuifolia (Lecythidaceae) were the most commonly eaten (88.9%). Some seed patches were revisited over several days, while others were consiste...
| Autor principal: | Barnett, Adrian Ashton |
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| Outros Autores: | Almeida, Thais, Spironello, Wilson Roberto, Silva, Welma Sousa, MacLarnon, Ann M., Ross, Caroline |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Folia Primatologica
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17968 |
| Resumo: |
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We analyse the behaviour of Cacajao melanocephalus ouakary feeding at patches of germinating seedlings in dried-out flooded forest. Seedlings of Eschweilera tenuifolia (Lecythidaceae) were the most commonly eaten (88.9%). Some seed patches were revisited over several days, while others were consistently ignored. We tested 3 predictions relating uacari terrestrial foraging behaviour to: (1) arboreal escape route proximity, (2) seed patch size choice and (3) temporal patterns of repeat exploitation. Comparison of fed-at and ignored patches revealed significant preferences for larger patches, and for those close to arboreal refuges but distant from dense ground-based vegetation. Support for these predictions is interpreted as evidence for predation risk-sensitive foraging. © 2012 S. Karger AG, Basel. |