Census and Survey of Wild Black-Crested Gibbons (Hylobates concolor concolor) in Yunnan Province, People’s Republic of China

Autor:	Swing-Jing He, Elliot H. Haimoff, Xiao-Jun Yang, Nan Chen
Rok vydání:	1986
Předmět:	Male China biology Hominidae Ecology Elaeocarpaceae Population Dynamics Ecological study Census Evergreen biology.organism_classification Fagaceae Geography Species Specificity Hylobates Animals Female Animal Science and Zoology Ecology Evolution Behavior and Systematics Demography
Zdroj:	Folia Primatologica. 46:205-214
ISSN:	1421-9980 0015-5713
Popis:	Black-crested gibbons (Hylobates concolor concolor) inhabit the subtropical forests of Southern China and Northern Vietnam, and have never previously been the subject of any systematic behavioral or ecological study. This report presents the findings of a three-month census and survey of black-crested gibbons in the Wuliang and Ailao Mountain Game Reserves in Yunnan province, China. The censusing methods used here were similar to those techniques used during other census studies of gibbons. The sites visited were subtropical broadleaf evergreen forests, with trees belonging to the families Fagaceae, Theaceae, Magnoliaceae, Lauraceae and Elaeocarpaceae. A total of 23–25 groups of black-crested gibbons were documented from 4 sites visited, and a group density estimate from all sites averaged 0.82 groups/km2. These gibbons were found to be polygynous with an average family group size of 7-8 animals, comprising 1 adult male, 1-4 adult females and numerous offspring of various ages. Some of the ecological and evolutionary implications of these findings are also presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7c9ae6d1999a8938f53b3a33f0c0d5c https://doi.org/10.1159/000156254 Zobrazit plný text záznamu Plný text ve formátu PDF