群间信号在灵长类装饰品进化中的作用。

IF 3.4 1区 生物学 Q2 EVOLUTIONARY BIOLOGY Evolution Letters Pub Date : 2024-08-17 eCollection Date: 2024-12-01 DOI:10.1093/evlett/qrae045
Cyril C Grueter, Stefan Lüpold
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引用次数: 0

摘要

群居的哺乳动物在不同程度上以各种方式与邻近的群体相互作用。由于通过传统手段(社会知识)在更广泛的社会环境中导航可能具有挑战性,我们假设群体之间的社会空间动态对个体身份、质量和竞争能力的表型标记施加了强烈的选择。装饰物是性选择的装饰特征,具有深远的信号潜力。在这里,我们在贝叶斯框架下研究了144种灵长类动物在装饰、家庭范围使用和相遇率方面的两性二态性之间的联系。我们发现,家庭范围重叠(邻居之间的共享空间)是群体间互动复杂性的一个指标(但不一定是雄性-雄性竞争),与装饰的二态性呈正相关。我们发现组间相遇率没有明显的影响。我们还发现,当有较大的主场重叠时,群体间的相互作用是不那么激动的。综上所述,这些发现表明,迄今为止,装饰品在向其家庭群体以外的同类发出信号方面发挥着未被充分认识的作用。
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The role of between-group signaling in the evolution of primate ornamentation.

Gregarious mammals interact to varying degrees and in a variety of ways with neighboring groups. Since navigating this wider social environment via conventional means (social knowledge) may be challenging, we hypothesize that between-group socio-spatial dynamics have exerted strong selection on phenotypic markers of individual identity, quality, and competitive ability. Ornaments are sexually selected decorative traits with far-reaching signaling potential. Here, we examined the links between sexual dimorphism in ornamentation, home range use and encounter rates across 144 primate species in a Bayesian framework. We show that home range overlap (shared space among neighbors), an indicator of the complexity of between-group interactions (but not necessarily male-male competition), is positively associated with dimorphism in ornamentation. We find no clear effect for between-group encounter rates. We also find that inter-group interactions were less agonistic when there was greater home range overlap. Taken together, these findings indicate that ornaments play a hitherto underappreciated role in signaling to conspecifics outside the realms of their home groups.

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来源期刊
Evolution Letters
Evolution Letters EVOLUTIONARY BIOLOGY-
CiteScore
13.00
自引率
2.00%
发文量
35
审稿时长
10 weeks
期刊介绍: Evolution Letters publishes cutting-edge new research in all areas of Evolutionary Biology. Available exclusively online, and entirely open access, Evolution Letters consists of Letters - original pieces of research which form the bulk of papers - and Comments and Opinion - a forum for highlighting timely new research ideas for the evolutionary community.
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