The evolution of multimale groups in Verreaux's sifaka, or how to test an evolutionary demographic model

The evolution of multimale groups in Verreaux's sifaka, or how to test an evolutionary demographic model
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Verreaux sifaka 中多雄性群体的进化,或如何测试进化人口模型

DOI:
10.1093/beheco/ars053
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发表时间:
2012
期刊:
影响因子:
2.4
通讯作者:
Kappeler
Kappeler
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Johnstone;Kappeler

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社会进化研究的理论进展突出了研究群体形成与人口动态的重要性。为了满足这一需求,开发了一些人口统计学上明确的模型。我们parameterized这样一个模型来研究多雄性协会在Verreaux的狐猴(Propithecus verreauxi),一个昼夜狐猴生活在小的多雄性多雌性群体的演变。我们使用长期的人口统计数据,从人口在马达加斯加西部,以估计不同的男性行为策略的健身前景。我们的研究结果表明,分散的雄性狐猴,而不是寻找自己的繁殖领土(浮动),更好地加入一个既定的群体作为一个下属有限的生殖机会,主要是因为他们可能后来上升到主导地位。相比之下,男性居民不应该接受潜在的移民,因为我们找不到任何可衡量的好处,生活在一个多人组为他们。因此,居民和浮动男性之间的群体成员资格的冲突,我们认为,浮动至少偶尔赢得这场冲突,因为他们有更多的收益从加入比居民站在失去分享他们的领土。
Theoretical advances in the study of social evolution have highlighted the importance of studying group formation in conjunction with population dynamics. To address this need, a number of demographically explicit models have been developed. We parameterize such a model to study the evolution of multimale associations in Verreaux's sifaka (Propithecus verreauxi), a diurnal lemur living in small multimale–multifemale groups. We use long-term demographic data from a population in western Madagascar to estimate the fitness prospects of different male behavioral strategies. Our results indicate that dispersing male sifaka, rather than searching for a breeding territory of their own (floating), do better joining an established group as a subordinate with limited reproductive opportunities, mainly because they may later ascend to the dominant position. By contrast, resident males should not accept potential immigrants because we could not find any measurable benefit of living in a multimale group for them. There is thus a conflict over group membership between resident and floater males, and we suggest that floaters at least occasionally win this conflict because they have more to gain from joining than residents stand to lose by sharing their territory.
DOI: 10.1002/evan.20243
发表时间: 2010-03
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发表时间: 1991
期刊:
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DOI: --
发表时间: 2011
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期刊: BEHAVIORAL ECOLOGY
影响因子: 2.4
作者:
Cant, Michael A.;English, Sinead
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DOI: 10.1007/978-3-642-22514-7_5
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影响因子: 1.4
作者:
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通讯作者: C. Fichtel