Association patterns among male and female spotted hyenas (Crocuta crocuta) reflect male mate choice
Association patterns among male and female spotted hyenas (Crocuta crocuta) reflect male mate choice
复制标题
雄性和雌性斑鬣狗（Crocuta crocuta）之间的关联模式反映了雄性的择偶选择
DOI：
10.1007/s002650100356
复制
发表时间：
2001
影响因子：
2.3
通讯作者：
K. Holekamp
中科院分区：
文献类型：
--
作者：
M. Szykman;A. Engh;R. V. Van Horn;S. Funk;K. Scribner;K. Holekamp
抽象的。虽然雌性动物在选择配偶时往往比雄性动物更谨慎，但性选择理论预测，当雌性繁殖力发生变化时，雄性动物也应该有所选择。雌性斑点鬣狗的繁殖成功率随社会地位的不同而变化很大。因此，我们的目标是确定雄性鬣狗是否优先与高级别的女性，以及男性的偏好是否受到女性生殖状态的影响。成年男性和女性之间的相互作用进行了深入的观察，协会指数计算的所有男女对，在一个自由生活的鬣狗人口在7年的时间。男性发起了最亲和的互动与女性，男性与女性最密切的是可能是肥沃的。高级和中级男性与高级女性的关系最密切，但低级男性与女性在所有等级类别中的关系同样密切。我们使用分子标记来确定在研究期间出生的幼崽的亲子关系，并发现父系与这些幼崽的母亲比非父系更密切，特别是在怀孕前的最后几个月。这些关联数据表明，雄性斑点鬣狗确实表现出选择性的配偶选择，它们更喜欢最有可能使雄性繁殖成功率最大化的雌性。
Abstract. Although female animals tend to be choosier than males in selecting mates, sexual selection theory predicts that males should also be choosy when female fecundity varies. Reproductive success among female spotted hyenas varies greatly with social rank. Our goals were therefore to determine whether male hyenas preferentially associate with high-ranking females, and whether male preferences are affected by female reproductive state. Interactions between adult males and females were observed intensively, and association indices calculated for all male-female pairs, over a 7-year period in one population of free-living hyenas. Males initiated most affiliative interactions with females, and males associated most closely with females that were likeliest to be fertile. High- and middle-ranking males associated most closely with high-ranking females, but low-ranking males associated equally closely with females in all rank categories. We used molecular markers to determine the paternity of cubs born during the study period, and found that sires associated more closely with the mothers of those cubs than did non-sires, particularly during the last months before conception. These association data indicate that male spotted hyenas do indeed exhibit selective mate choice, and that they prefer females likeliest to maximize male reproductive success.
自然群体中遗传标记的亲子分析。
影响因子：
3.3
作者：
Chakraborty,R;Meagher,TR;Smouse,PE
通讯作者：
Smouse,PE