期刊
INTERNATIONAL JOURNAL OF PRIMATOLOGY
卷 28, 期 5, 页码 1075-1083出版社
SPRINGER
DOI: 10.1007/s10764-007-9204-y
关键词
birth interval; breeding season; gestation length; mating behavior; reproduction; trachypithecus pileatus
类别
We studied reproductive behavior of free-ranging capped langurs (Trachypithecus pileatus) in the Pakhui Wildlife Sanctuary, Arunachal Pradesh, India. Four species of primates -Trachypithecus pileatus, Macaca mulatta, M. assamensis, and Nycticebus bengalensis- live there. We studied the mating seasons, mating frequency, copulatory attempts, time spent in copulation, and interval between 2 successive copulations, gestation length, and interbirth interval of 4 groups of capped langurs during 2001-2003. We observed 2 mating seasons in a year. The first was larger, comprising 5 months (September-January), and the second was short, April and May. Mating was intensive in the morning session (0600-1000 h); 57% of total mating events occurred then. The average gestation period was 200 d. November was the most favorable month for breeding. In a year, 107 mating events occurred involving 5 adult females. Average time per mounting attempt is 12 s. Duration of mounting was the maximum in November. Interbirth interval was 23 months and 10 d. The birth season was 129 days, December-April; 53% of births occurred in February and March. Average birth rate is 0.386 birth/female/yr.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据