期刊
BEHAVIORAL ECOLOGY
卷 24, 期 1, 页码 21-28出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/beheco/ars150
关键词
cooperative hunting; Cryptoprocta ferox; evolution of group-living; fosa; Madagascar mongoose; male sociality; male-male competition
资金
- Deutsche Forschungsgemeinschaft [DFG KA 1082/17-1]
- Fossa Fund of Zoo Duisburg AG
- German Primate Center GmbH (DPZ)
Group-living has been recognized as one of the major transitions in evolution. Male sociality along with solitary females is rare in mammals, but it can provide unique insights into the evolution of sociality and cooperation. Because males compete with each other over females, male cooperation in mammals has been explained by joint defense of females against other males. Here, we demonstrate that the benefits of male cooperative hunting can play a major role in shaping sociality. By quantifying differences in morphology, activity, diet, and mating success, we show that in Madagascar's top predator, the fosa (Cryptoprocta ferox), some males associate to jointly hunt large prey, which allows them to grow bigger than both solitary males and females. These associated males' physical superiority also represents an advantage in contest competition for females, as reflected by higher mating success. Our results demonstrate that enhanced access to food resources by cooperative hunting is a key to physical development and competitiveness in fosas. In contrast to previous findings, we show that male sociality must not be limited to joint defense of territory and females, but that cooperation in food acquisition can favor sociality in sexually dimorphic species.
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