Sexual Interference in the Golden Snub-Nosed Monkey(Rhinopithecus roxellana):a Test of the Sexual Competition Hypothesis in a Polygynous Species
作者单位：School of Life SciencesNorthwest University
会议名称：《第七届全国野生动物生态与资源保护学术研讨会》
会议日期：2011年
关 键 词：Rhinopithecus roxellana sexual interference female mating competition hormonally modulated aggression
摘 要：Sexual interference which is defined as any disturbance directed to a mating pair by other individuals,has been reported in several primate *** 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 *** the present study,we investigated sexual interference(SI)in a multilevel troop of Golden snub-nosed monkeys(Rhinopithecus roxellana)inhabiting the Qinling Mountains,*** observations of 11 one-male units(OMU)that comprised the multilevel troop were conducted from September 2007 to May *** this period 17.1%of 652 documented intra-OMU sexual encounters were characterized either by mild or aggressive forms of *** 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 *** found that the amount of sexual interference a female received was not a significant predictor of her reproductive ***,females who conceived during the mating season directed higher levels of harassment at other females then females who did not *** evaluate the strength of the sexual competition hypothesis and the hormonally modulated aggression hypothesis in explaining patterns of sexual interference in female Golden snub-nosed monkeys.