Biodiversity Science ›› 2018, Vol. 26 ›› Issue (2): 185-190.doi: 10.17520/biods.2017340

• Orginal Article • Previous Article     Next Article

A wild yak survey in Chang Tang of Tibet Autonomous Region and Hoh Xil of Qinghai Province

Yiming Hu1, 2, 3#, Weiqi Li2, 3#, Zhigang Jiang2, 3, Wulin Liu4, Jianchao Liang1, Yizhou Lin5, Zhiwen Huang1, Haihua Qin1, Kun Jin6, *(), Huijian Hu1, *()   

  1. 1 Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou 510260
    2 Institute of Zoology, Chinese Academy of Sciences, Beijing 100101
    3 University of Chinese Academy of Sciences, Beijing 100049
    4 Forestry Inventory and Planning Institute of the Tibet Autonomous Region, Lhasa 850000
    5 Guangzhou Yilin Ecological Monitoring Limited Company, Guangzhou 510075
    6 Research Institute of Forest Ecology Environment and Protection, Chinese Academy of Forestry, Beijing 100091
  • Received:2017-12-09 Accepted:2018-02-20 Online:2018-05-05
  • Jin Kun,Hu Huijian;
  • About author:

    # Co-first authors

The wild yak (Bos grunniens), which is endemic to the Qinghai-Tibet Plateau, mainly distributed in Chang Tang region of Tibet, Hoh Xil and Sanjiangyuan regions of Qinghai and Altun Mountain of Xinjiang. In this study, we used field data and data from the published literatures to estimate the population of wild yaks as well as their distribution in the Qinghai-Tibet Plateau and the adjacent areas in China. Field surveys were conducted in Chang Tang of Tibet, Hoh Xil of Qinghai between 2012 and 2014. According to our field survey, there were 11,222-21,072 wild yaks in Chang Tang of Tibet, and 659-1,793 in Hoh Xil of Qinghai. Although our results indicate that the population of wild yak has increased since 1990s, the distribution area of wild yak is shrinking. With the changing of the global climate and the intensifying of human activities on the Qinghai-Tibet Plateau, stronger actions to protect the endemic species in this area are still needed.

Key words: Bos grunniens, Qinghai-Tibet Plateau, population, distribution, conservation

Table 1

Distribution, density and population size of wild yaks in China: field data"

省份 Province 分布区 Distribution 经纬度 Latitude & longitude 面积 Area (km2) 密度 Density (inds./km2) 种群数量 Population size
西藏 Tibet 阿里 Ngari 32°10°-36°32°N, 79°42°-92°05°E 134,000 0.014 ± 0.005 1,859 ± 713
那曲 Nagchu 105,000 0.136 ± 0.040 14,288 ± 4,212
青海 Qinghai 可可西里 Hoh Xil 34.19°-36.16° N , 89.25°-94.05° E 45,000 0.027 ± 0.0126 1,226 ± 567

Table 2

Distribution, density and population size of wild yaks in China: literature data"

Area (km2)
密度 Density
Population size
西藏 Tibet 仲巴 Zhongba 29°09°-31°48° N, 82°00°-84°45° E 12,368 0.065 810±160 Shi et al, 2016
昂仁措勤 Angrencuoqin 29°10°-31°00° N,
85°09°-87°45° E
15,617 0.021 314±80 Shi et al, 2016
青海 Qinghai 三江源
The Three River Source region
31°39°-36°12° N,
89°45°-102°2° E
65,000 0.032 2,087 Shi et al, 2016
Qilian Mountain-Shulenan Mountain
38°28°N, 97°45° E 45,000 0.009 392 Shi et al, 2016
新疆 Xinjiang 阿尔金山
Altun Mountains
36°00°-37°49° N
87°10°-91°18° E
45,000 0.33±0.094 14,850±4,227 路飞英等, 2015
甘肃 Gansu 祁连山-肃南, 肃北
Qilian Mountain-northern and southern Gansu
32°11°-42°57° N,
92°13°-108°46° E
454,430 130 Shi et al, 2016

Fig. 1

Distribution of wild yaks in China"

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