Sexual Interference in the Golden Snub-Nosed Monkey (Rhinopithecus roxellana): A Test of the Sexual Competition Hypothesis in a Polygynous Species
Sexual Interference in the Golden Snub-Nosed Monkey (Rhinopithecus roxellana): A Test of the Sexual Competition Hypothesis in a Polygynous Species
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金丝猴（Rhinopithecus roxellana）的性干扰：对一夫多妻制物种中性竞争假说的检验。
DOI：
10.1002/ajp.20908
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发表时间：
2011-04-01
影响因子：
2.4
通讯作者：
Li, Bao-Guo
中科院分区：
文献类型：
--
作者：
Qi, Xiao-Guang;Yang, Bin;Li, Bao-Guo
性干扰（SI）被定义为其他个体对交配对的任何干扰，已在几种灵长类动物中报道过。人们普遍认为，成功的骚扰者通过增加与生殖伴侣的接触以及减少竞争对手的交配成功率来提高交配成功率。尽管灵长类动物性冲突理论强调雄性之间的性交配竞争，但据报道，雌性也会主动扰乱交配伙伴之间的交配。在这项研究中，我们对居住在中国秦岭山区的金丝猴（Rhinopithecus roxellana）的多层群体进行了 SI 调查。 2007 年 9 月至 2008 年 5 月，对组成多级部队的 11 个单男单位 (OMU) 进行了行为观察。在此期间，记录在案的 652 起 OMU 内性接触事件中，有 17.1% 存在轻度或攻击性骚扰。性骚扰通常由单个人实施（91.9%），并且在 75.7% 的案例中，骚扰者是成年或亚成年女性。女性骚扰的频率与居住在 OMU 中的成年和亚成年女性的数量呈正相关，并导致以射精结束的交配次数显着减少。我们发现，女性接受的 SI 量并不是其生殖成功的重要预测因素。然而，在交配季节怀孕的雌性对其他雌性的骚扰程度高于未怀孕的雌性。我们评估了性竞争假说和激素调节攻击假说在解释雌性金丝猴 SI 模式方面的实力。是。 J.普里马托尔。 73: 366-377, 2011。(C) 2010 Wiley-Liss, Inc.
Sexual interference (SI), which is defined as any disturbance directed to a mating pair by other individuals, has been reported in several primate species. It is widely suggested that successful harassers experience improved mating success by increasing their access to reproductive partners as well as by reducing the mating success of rivals. Although theories of primate sexual conflict highlight male intra-sexual mating competition, females also are reported to actively disrupt copulations between mating partners. In this study, we investigated SI in a multilevel troop of Golden snub-nosed monkeys (Rhinopithecus roxellana) inhabiting the Qinling Mountains, China. Behavioral observations of 11 one-male units (OMU) that comprised the multilevel troop were conducted from September 2007 to May 2008. During this period 17.1% of 652 documented intra-OMU sexual encounters were characterized either by mild or aggressive forms of harassment. Sexual harassment was typically performed by a single individual (91.9%), and in 75.7% of cases the harasser was an adult or sub-adult female. The frequency of female harassment was positively correlated with the number of adult and sub-adult females residing in an OMU, and resulted in a significant decrease in matings ending in ejaculation. We found that the amount of SI a female received was not a significant predictor of her reproductive success. However, females who conceived during the mating season directed higher levels of harassment at other females than females who did not conceive. We evaluate the strength of the sexual competition hypothesis and the hormonally modulated aggression hypothesis in explaining patterns of SI in female Golden snub-nosed monkeys. Am. J. Primatol. 73: 366-377, 2011. (C) 2010 Wiley-Liss, Inc.