Home range and daily ranging distance of Fran(c)ois' langur(Trachypithecus francoisi) in Nonggang Nature Reserve,Guangxi,China
To explore whether Francois' langurs display a specially adapted strategy in karst limestone hills in relationship to foraging and home range, we studied a group of Francois' langurs ( Trachypithecusfrancoisi) over 12 months in Nonggang Nature Reserve, Guangxi, Southwest of China. The group ' s total home range was 28. 75 hm2. They used 8. 35 ± 4. 24 hm2 for home range, with an average daily ranging distance of 661.77 ± 130. 20 m monthly. Home range size and daily ranging distance showed significant seasonal variations. During the rainy season, the group occupied 5.88 ± 1.68 hm2 as home range, with an average daily ranging distance of 589. 93 ± 120. 15 m. During the dry season, they had a home range of 10. 83 ±4. 70 hm2 , with an average daily ranging distance of 733.61 ± 102. 34 m. Further analysis showed that the food availability of fruit and young leaves influenced the group's home range size and daily ranging distance. As the result, the home range of the langurs decreased when fruit and young were abundant, while when fruit and young leaves were scarce and mature leaves abundant, Fran(c)ois' langurs increased home range size and daily ranging distance, which was similar to most of Colobinae primates. The results indicated the special futures of karst limestone habitat weren' t strong enough to force the langurs to evolve a special adaptation strategy.
国家科技期刊平台
NSTL
万方数据
维普
