期刊
ZOOLOGIA
卷 35, 期 -, 页码 -出版社
SOC BRASILEIRA ZOOLOGIA, UNIV FEDERAL PARANA
DOI: 10.3897/zoologia.35.e14664
关键词
Food biology; food stealing; foraging success; social behavior; wading birds
类别
资金
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [312049/2015-3]
Although the concept of optimal foraging has been extensively discussed, foraging efficiency is difficult to assess in vertebrates. In this study, we determined the foraging efficiency of the Brazilian cormorant, Nannopterum brasilianus Gmelin, 1789, by the direct, ad libitum observation of a group of four to thirteen individuals in an artificial pond at the University of Sao Paulo, Piracicaba, state of Sao Paulo, southeastern Brazil. Although this study was carried out in a highly anthropic environment, we can still conclude that the Brazilian cormorant is a relatively efficient browser and short-term diver. In anthropic environments, foraging success depends on the amount of time these birds spend diving, and stealing food is less common. Stealing occurs at relatively low rates but tends to be an efficient way to get food.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据