...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Primates >Mating behavior of adolescent male chimpanzees (Pan troglodytes) at Ngogo, Kibale National Park, Uganda
【24h】

Mating behavior of adolescent male chimpanzees (Pan troglodytes) at Ngogo, Kibale National Park, Uganda

机译：乌干达基巴莱国家公园Ngogo的青少年雄性黑猩猩（Pan穴居动物）的交配行为

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Male mating tactics vary extensively in many primates. Some variation occurs because adolescent males often are sexually active but cannot invest heavily in mating effort because of their limited ability to compete directly with adults and because they are still investing in growth; consequently, most of their mating attempts may be surreptitious and/or with females whose fecundity is low. Chimpanzees (Pan trogolodytes) have a complex mating system: most copulations occur between estrous females with full sexual swelling and multiple males in group settings where the potential for sperm competition is high, but males sometimes mate-guard females, and sometimes male-female pairs mate exclusively with each other while avoiding other males during "consortships." Among other factors, dominance ranks, coalition formation, and variation in male-female association influence male mating and reproductive success. Mating effort increases from adolescence into prime adulthood. At Gombe and Mahale, adolescent males copulated more with nulliparous than with parous females, and mostly when females were unlikely to be ovulating, partly because of low adult male interest in nulliparous females and partly because of aggression from or avoidance of adult males. Adolescents thus had low probabilities of siring infants. However, adolescents are known to have gained some paternity at Gombe and in other populations, and their mating behavior deserves more study. I present data on mating by adolescent males in an unusually large chimpanzee community at Ngogo, Kibale National Park, Uganda. Adolescents at Ngogo also copulated more with nulliparous than parous females and mostly copulated outside of periovulatory periods. Also, they directed less aggression at estrous females than did adult males. However, they gained lower shares of copulations than reported for Gombe and Mahale, regardless of female parity, and received more aggression from adult males. These differences might partly reflect the influence of variation in the number of males per community on male mating tactics.
机译：在许多灵长类动物中，雄性交配策略差异很大。发生某些变化是因为青春期的男性经常性活跃，但由于与成年人直接竞争的能力有限以及他们仍在投资于成长而无法投入大量的精力进行交配;因此，他们的大多数交配尝试都是秘密的和/或雌性繁殖力低的雌性。黑猩猩（Pan trogolodytes）的交配系统很复杂：大多数交配发生在发情充分，性膨胀的雌性雌性与多头雄性雄性成群的情况下，而后者的精子竞争潜力很高，但是雄性有时会与雌性交配，雌雄对有时只在彼此交配的同时在“交配”中避开其他雄性。在其他因素中，优势等级，联盟形成以及男女关系的变化会影响男性的交配和生殖成功。交配努力从青春期增加到成年期。在贡贝和马哈莱，青春期的男性与未产卵的女性相比，与未交配的女性的交往更多，主要是因为女性不太可能排卵，部分原因是成年男性对未产卵女性的兴趣低，部分是由于对成年男性的攻击或回避。因此，青少年的婴儿存活率较低。但是，众所周知，青少年在贡贝（Gombe）和其他人口中获得了一定的亲子关系，其交配行为值得进一步研究。我提供了乌干达基巴莱国家公园Ngogo一个非常大的黑猩猩社区中青春期雄性交配的数据。在Ngogo的青少年中，未婚女性的交往比雌性女性要多，并且大多数在排卵期外进行交配。而且，他们对发情女性的攻击要比成年男性少。但是，无论女性是否平等，她们获得的交配比例均低于贡贝和马哈莱的交配比例，而且成年男性的侵略性更高。这些差异可能部分反映了每个社区中男性数量的变化对男性交配策略的影响。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号