成年雌性短尾猴性打搅行为的影响因素

Influencing factors of sexual harassment in adult female Tibetan macaques(Macaca thibetana)

在多雄多雌非人灵长类动物中,性打搅行为一直是动物学家研究的热点。与成年雄性个体相比,成年雌性个体的性打搅行为较少有研究报道。于2016年8月—2017年5月对栖息于安徽黄山的短尾猴YA1群15个成年雌性个体进行观察记录,以期探讨成年雌性短尾猴性打搅行为的模式、影响因素及其可能的动机。结果表明:成年雌性短尾猴性打搅行为主要以非接触性打搅模式为主(P<0.05);不同年龄组的成年雌性在性打搅频次上无差异性(P>0.05);成年雌性个体顺位与性打搅发起频次呈正相关关系(P<0.05);成年雌性短尾猴更倾向于打搅其亲缘个体的交配(P<0.05)。结果表明成年雌性短尾猴的性打搅行为与其自身自然属性等无关,社会属性在短尾猴性打搅中可能起着重要作用。研究为揭示成年雌性短尾猴性打搅在群体中的功能提供基础资料。

In non-human primates,sexual harassment behavior has been defined as any response from non-copulatory individuals to ongoing copulatory individuals.However,the motivation of adult females′sexual harassment remains obscure.In this study,we analyzed the variation in patterns and factors of sexual harassment in Tibetan macaques(Macaca thibetana)at Mt.Huangshan,China from August 2016 to May 2017,using all occurrence sampling method.The results showed that the frequency of non-contact harassment was higher compared to the contact harassment(P<0.05);the frequency of sexual harassment among adult females was not significantly influenced by age-class(P>0.05);sexual harassment was positively correlated to social rank(P<0.05);adult females harassed toward kinship than non-kinship individuals more frequently(P<0.05).Our results suggested sexual harassment among adult females in Tibetan macaques is influenced by kinship or social rank.This study will provide some explanations about motivation of sexual harassment by adult females.