Female preferences for male golden snub-nosed monkeys vary with male age and social context

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外文摘要：Age is a key factor affecting sexual selection,as many physical and social traits are age-related.Although studies of primate mate choice often consider particular age-related traits,few consider the collective effects of male age.We tested the hypothesis that female golden snub-nosed mon-keys Rhinopithecus roxellana prefer prime aged males(10-15 years)over younger and older males.We examined a habituated,provisioned troop during a 3-year study in the Qinling Mountains,China.Prime age males were more likely to be resident males of 1-male units(OMUs)than males of other ages.Since females are free to transfer between OMUs,the number of females per OMU can be indicative of female preferences.We examined the number of females per OMU,and found that it increased with resident male age up to 7-8 years,and declined after 12 years,such that prime age resident males had more females than other resident males.Females also initiated extra-unit copulations with high-ranking prime age males at significantly higher rates than with other males.Nevertheless,females tended to transfer from OMUs with high-ranking,older resident males to those with low-ranking,younger resident males.Thus,females appear to use different strategies when choosing social mates and extra-unit mates(i.e.,different social contexts).We speculate that females may perceive early signs of aging in males and trade off the benefits and costs of high rank versus male senescence.This study lays the groundwork for future studies that examine pos-sible direct and indirect benefits of such strategies.

外文关键词：

extra-unit copulationfemale transfermale agemate choice1-male unitRhinopithecus roxellana

作者：

Xi YANG、Carol M.BERMAN、Hanyu HU、Rong HOU、Kang HUANG、Xiaowei WANG、Haitao ZHAO、Chengliang WANG、Baoguo LI、Pei ZHANG

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作者单位：

Shaanxi Key Laboratory for Animal Conservation,College of Life Sciences,Northwest University,Xi'an 710069,China

Department of Anthropology and Graduate Program in Evolution,Ecology and Behavior,State University of New York at Buffalo,NY 14261,USA

Shaanxi Institute of Zoology,Shaanxi Province Academy of Sciences,Xi'an 710032,China

基金：

国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金National Key Program of Research and Development,Ministry of Science and TechnologyStrategic Priority Research Program of the Chinese Academy of SciencesNatural Science Basic Research Plan in Shaanxi Province

项目编号：

317301043177042532071495317704112016YFC0503200XDB310000002019JM-258

出版年：

2022

DOI：

10.1093/cz/zoab044

动物学报(英文版)

中国科学院动物研究所,中国动物学会

动物学报(英文版)

CSCDSCI

影响因子：0.198

ISSN：1674-5507

年,卷(期)：2022.68(2)

参考文献量5