Journal
INTERNATIONAL JOURNAL OF PRIMATOLOGY
Volume 28, Issue 5, Pages 1075-1083Publisher
SPRINGER
DOI: 10.1007/s10764-007-9204-y
Keywords
birth interval; breeding season; gestation length; mating behavior; reproduction; trachypithecus pileatus
Categories
Ask authors/readers for more resources
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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available