Genetic diversity of Rhinopithecus roxellana in Shennongjia National Nature Reserve as estimated by non-invasive DNA technology Study on Habitat Forest Type and Plant Diversity of Sichuan Snub-nosed Monkey in Shennongjia National Nature Reserve Distribution of Wildlife Surveyed with Infra-Red Cameras in the Shennongjia National Nature Reserve Numerical classification and ordination of forest communities in habitat of Sichuan Snub-nosed Monkey in Hubei Shennongjia National Nature Reserve