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

doi:10.17520/biods.2017340

Abstract

Abstract:

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

Yiming Hu, Weiqi Li, Zhigang Jiang, Wulin Liu, Jianchao Liang, Yizhou Lin, Zhiwen Huang, Haihua Qin, Kun Jin, Huijian Hu. A wild yak survey in Chang Tang of Tibet Autonomous Region and Hoh Xil of Qinghai Province[J]. Biodiv Sci, 2018, 26(2): 185-190.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2017340

https://www.biodiversity-science.net/EN/Y2018/V26/I2/185

Figures/Tables 3

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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
西藏 Tibet	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

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
西藏 Tibet	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

省份 Province	分布区 Distribution	经纬度 Locality	面积 Area (km²)	密度 Density (inds./km²)	种群数量 Population size	数据来源 Sources
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
西藏 Tibet	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
青海 Qinghai	祁连山-疏勒南山 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

省份 Province	分布区 Distribution	经纬度 Locality	面积 Area (km²)	密度 Density (inds./km²)	种群数量 Population size	数据来源 Sources
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
西藏 Tibet	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
青海 Qinghai	祁连山-疏勒南山 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