Nest sanitation in cooperatively breeding Carrion Crows
| Autor: | Diana Bolopo, Vittorio Baglione, José M. Marcos, Daniela Canestrari |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | The Auk. 132:604-612 |
| ISSN: | 1938-4254 0004-8038 |
| DOI: | 10.1642/auk-14-233.1 |
| Popis: | A clean nest is important for successful breeding in most bird species, because parasites and bacterial infestations can reduce nestling survival. In cooperatively breeding species, caregivers may either share nest and chick sanitation activities or specialize in different tasks related to chick care, such as food provisioning, nest sanitation, and territory and nest defense. We used video-recorded observations at nests of cooperatively breeding Carrion Crows (Corvus corone corone) to describe sanitation behaviors and analyze the factors that influenced individuals' contributions to each particular task. We then combined data on sanitation and chick provisioning to investigate whether labor was divided within the group and whether individuals specialized in any particular task. Finally, we asked whether nest sanitation was flexible and responded to current conditions—in particular, food availability in the territory. In a controlled experiment, we supplemented 11 territories with food during the ... |
| Databáze: | OpenAIRE |
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