NDLI: Differences in the Activity Budgets of Yunnan Snub-Nosed Monkeys (Rhinopithecus bieti) by Age-Sex Class at Xiangguqing in Baimaxueshan Nature Reserve, China

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Differences in the Activity Budgets of Yunnan Snub-Nosed Monkeys (Rhinopithecus bieti) by Age-Sex Class at Xiangguqing in Baimaxueshan Nature Reserve, China

Content Provider	Semantic Scholar
Author	Li, Yanhong Li, Dayong Ren, Baoping Li, Baoguo Krzton, Ali Li, Ming
Copyright Year	2014
Abstract	The activity budgets of primates reflect their survival strategy. Despite existing data on the activity budgets of Yunnan snub-nosed monkeys (Rhinopithecus bieti), little is known about how activity budgets vary between age-sex classes. This study provides the first detailed activity budgets subdivided by age-sex class, based on observations of the largest habituated group of R. bieti at Xiangguqing in Baimaxueshan Nature Reserve. This study was conducted from June 2008 to May 2009. We found that adult females spent more time feeding (44.8%) than adult males (39.5%), juveniles (39.1%) and infants (14.2%). Females allocated significantly more time to feeding than to any other activity. Adult males allocated more time to miscellaneous activities (12.5%) than adult females (3.8%). Juveniles allocated less time to grooming than adults. Infants were being groomed 6.9% of the time, the highest proportion among all age-sex classes. Adults spent more time feeding, while immature individuals allocated more time to moving and other activities. There are several reasons why activity budgets can vary by age-sex class: (1) differential reproductive investment between males and females; (2) developmental differences among the age categories, and (3) social relationships between members of different age-sex classes, particularly dominance. These variations in activity budgets among the different age-sex classes may become a selective pressure in this species.
Starting Page	335
Ending Page	342
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1159/000368831
Alternate Webpage(s)	https://www.karger.com/Article/Pdf/368831
PubMed reference number	25591874
Alternate Webpage(s)	https://doi.org/10.1159/000368831
Journal	Medline
Volume Number	85
Journal	Folia Primatologica
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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