Range Friederike
Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania.
Am J Primatol. 2005 Apr;65(4):327-33. doi: 10.1002/ajp.20119.
I tested the hypothesis that free-ranging female mangabeys (Cercocebus torquatus atys) differentiate between males depending on their residence status. Adult males in this species employ two group-membership strategies: they are either full-time residents or part-time residents (i.e., present for several weeks at a time, then gone for several weeks, then present again, etc.). In a playback experiment I tested whether adult females with young infants responded differently to calls of adult males that were group members during the previous mating season as compared to males that belonged to neighboring groups during the mating season or were complete strangers. Males whose calls were played were present residents, part-time residents (absent for at least 3 months), neighbors, or complete strangers. Because infanticide is a potential risk in mangabeys, I predicted that females would respond differently to males that had resided in the group when their infant was conceived than they would to those that had not been present. The females showed a clear difference in their reaction to the playbacks of vocalizations from resident and part-time resident males as opposed to nonresidents.
我检验了一个假设，即自由放养的雌性白颈白眉猴（Cercocebus torquatus atys）会根据雄性的居住状态来区分它们。该物种的成年雄性采用两种群体归属策略：它们要么是全职居住者，要么是兼职居住者（即一次出现几周，然后离开几周，之后再出现等等）。在一项回放实验中，我测试了带着幼崽的成年雌性对白颈白眉猴叫声的反应是否存在差异，这些叫声来自上一个交配季节的群体成员成年雄性，与交配季节属于相邻群体或完全陌生的雄性相比。播放叫声的雄性包括现居居民、兼职居住者（至少缺席3个月）、邻居或完全陌生的个体。由于杀婴在白颈白眉猴中是一种潜在风险，我预测雌性对白颈白眉猴叫声的反应会因雄性在其幼崽受孕时是否居住在群体中而有所不同。与非居住者相比，雌性对白颈白眉猴叫声的反应在对现居和兼职居住雄性的回放与对非居住者（的回放）之间表现出明显差异。
