Demography, ranging patterns, and activity budgets of black spider monkeys (Ateles paniscus chamek) in the Manu National Park, Peru

Demography, ranging patterns, and activity budgets of black spider monkeys (Ateles paniscus chamek) in the Manu National Park, Peru
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秘鲁马努国家公园黑蜘蛛猴 (Ateles paniscus chamek) 的人口统计、分布模式和活动预算

DOI:
10.1002/ajp.1350150106
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发表时间:
1988
影响因子:
2.4
通讯作者:
M. Symington
M. Symington
中科院分区:
生物学3区
文献类型:
--
作者:
M. Symington

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本文报道了对秘鲁两组黑蜘蛛猴(Ateles Paniscus Chamek)的生态和社会组织的长期野外研究结果。人口学、射程模式和活动预算提供了对该物种中裂变聚变社会组织的一些直接决定因素的洞察,并说明了男性和女性为获得关键资源而使用的不同策略。已知个体的纵向数据为该人群中男性出生时的性交和女性在性成熟时的移民提供了证据。与大多数其他灵长类物种相比,分娩间隔较长(平均为34.5个月),出生几天内观察到的15个婴儿中,有5个在一岁之前死亡或消失。栖息地很大(150-250公顷),而且相当分散;与邻近种群的重叠约为10%-15%。雄性和雌性在它们的范围模式上有很大的不同;雌性,特别是有婴儿的雌性,将它们的大部分范围限制在整个群体范围的20%-33%的“核心区域”内,而雄性在整个群体占据的区域上分布得更均匀。每日路径长度的变化范围几乎是一个数量级,从465米到4070米,平均为1977米。与大多数雌性相比,雄性花在旅行上的时间更多,取食的时间更少。这些结果与以前对Ateles的研究以及其他灵长类物种的类似数据进行了比较,以评估它们对蜘蛛猴裂变-融合社会性进化的影响。讨论了导致蜘蛛猴和黑猩猩非常相似的社会组织进化的生态因素。
Results of a long‐term field study on the ecology and social organization of two groups of black spider monkeys (Ateles paniscus chamek) in Peru are reported. Demography, ranging patterns, and activity budgets provide insight into some of the proximate determinants of fission‐fusion social organization in this species and illustrate the different strategies used by males and females to gain access to critical resources. Longitudinal data on known individuals provide evidence for male natal philopatry and female emigration at sexual maturity in this population. Interbirth intervals are long (mean = 34.5 months) in comparison with most other primate species, and 5 of 15 infants seen within a few days of birth died or disappeared before they were a year old. Home ranges are large (150–250 ha) and fairly discrete; overlap with neighboring groups is on the order of 10–15%. Males and females differed substantially in their ranging patterns; females, particularly those with infants, restricted much of their ranging to a “core area” 20–33% the size of the total group range, whereas males ranged more evenly over the entire area occupied by the group. Daily path length varied over almost an order of magnitude from 465 m to 4,070 m, with a mean of 1977 m. Males spent more time traveling and less time feeding than most females. These results are compared with those obtained in previous studies of Ateles and with similar data from other primate species to assess their implications for the evolution of fission‐fusion sociality in spider monkeys. The ecological factors responsible for the evolution of very similar social organizations in spider monkeys and chimpanzees are discussed.
生物物理学.J.45。
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