Group territoriality and the benefits of sociality in the African lion, Panthera leo
Group territoriality and the benefits of sociality in the African lion, Panthera leo
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DOI：
10.1016/j.anbehav.2009.04.024
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发表时间：
2009-08-01
期刊：
影响因子：
2.5
通讯作者：
Packer, Craig
中科院分区：
文献类型：
--
作者：
Mosser, Anna;Packer, Craig
我们分析了坦桑尼亚塞伦盖蒂国家公园 46 个狮群 38 年的数据，发现领地竞争直接影响雌性健康的关键组成部分，而较大的狮群获得并维持了最高质量的栖息地。邻居对雌性繁殖成功和生存有显着的负面影响，而较大的狮群更有可能维持对有争议地区的控制并提高其领地的质量。当狮群有更多邻居时，成年雌狮独处的可能性明显降低，这表明狮群对遭遇风险很敏感。在大多数情况下，群体间领土竞争的影响仅与最近没有分裂（即不密切相关）的狮群有关。总体而言，雄性在群体领地竞争中比预期更重要，雌性死亡率和受伤率与雄性邻居显着相关，这表明雄性可能会利用致命的攻击性来扭转权力平衡，使其有利于自己的骄傲。在猫科动物中，只有狮子始终是群居的，我们的研究表明，领地竞争中的数量优势是狮子群体生活的主要优势，并且可能在狮子社会性的进化中发挥着重要作用。 (C) 2009 年动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
We analysed 38 years of data on 46 lion prides in the Serengeti National Park, Tanzania, and found that territorial competition directly affected critical components of female fitness and that larger prides gained and maintained access to the highest-quality habitat. Neighbours had a significant negative effect on female reproductive success and survival, and larger prides were significantly more likely to maintain control of disputed areas and to improve the quality of their territories. Adult females were significantly less likely to be alone when a pride had more neighbours, suggesting sensitivity to risk of encounter. In most cases, the effects of intergroup territorial competition were associated only with prides that had not recently split (i.e. that were not closely related). Overall, males were more important in group-territorial competition than expected, and female mortality and wounding rates were significantly associated with male neighbours, suggesting that males may use lethal aggression to tip the balance of power in favour of their prides. Within the Felidae, only lions are consistently gregarious, and our research illustrates that numerical advantage in territorial competition is a primary benefit of group living in lions and may have been important in the evolution of lion sociality. (C) 2009 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.