Surviving at the highest and coldest: nutritional and chemical components of fallback foods for Yunnan snub-nosed

1. The food availablility index between two lichen groups (Bryoria spp. and Usnea longissima) and leaes, and the temperature. 2. The nutritional and chemical components of 27 lichen samples. 3. The diet of asian colobines. 4. The feeding times spend on different lichen groups.