关键词: 西藏, 褐家鼠, 分布

Abstract:

Objective To determine whether there is distribution of Rattus norvegicus within the Tibet Autonomous Region. Methods Rats were captured using mice traps and made into specimens. Results From July to October, 1974, 15 rat species were found and 80 specimens were made in Lhasa city and Shannan mount areas. A R. norvegicus was captured in Bayi town of Linzhi city, and the specimen is deposited in the Animal Specimen Collection of the Grassland Research Institute of Chinese Academy of Agricultural Sciences. The captured rat was male, 182 g in weight, 195 mm in body length, 167 mm in tail length, 34 mm in hind foot length, 20 mm in ear length, 43.4 mm in skull length, 42.0 mm in cranial base length, 17.5 mm in nasal bone length, 19.8 mm in zygomatic width, 6.7 mm in inter-orbital width, 18.5 mm in hind head width, 13.9 mm in toothspace, and 7.7 mm in upper dentition. The other R. norvegicus was captured in Cuona county on the southern slope of the Himalayas, whereas the specimen was not retained. Conclusion R. norvegicus was found in Linzhi and Cuona county.

Key words: Tibet, Rattus norvegicus, Distribution