Biodiversity Science ›› 2009, Vol. 17 ›› Issue (4): 414-422.doi: 10.3724/SP.J.1003.2009.09001

Special Issue: Conservation Biology: Status Quo and Challenges

• Special Issue • Previous Article     Next Article

Population densities and number of khulan and goitred gazelle in Mt. Kalamaili Ungulate Nature Reserve

Hongjun Chu1, Zhigang Jiang2*, Yan Ge3, Feng Jiang3, Yongshan Tao3, Chen Wang4   

  1. 1 Wildlife Conservation Office of Altay Prefecture, Forestry Bureau of Altay Prefecture, Altay, Xinjiang 836500
    2 Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Bei-jing 100101
    3 Altay Management Station of Mt. Kalamaili Ungulate Nature Reserve, Altay, Xinjiang 836500
    4 Xinjiang Research Center for Breeding Przewalski’s Horse, Urumqi, Xinjiang 830000
  • Received:2009-01-06 Revised:2009-05-28 Online:2009-07-20

From September 2006 to December 2007, we surveyed population densities of khulan (Equus hemionus) and goitred gazelle (Gazella subgutturosa sairensis) in the Mt. Kalamaili Ungulate Nature Reserve using the distance sampling method. Total length of the transect lines for investigating khulan was 6,696.4 km, altogether, we recorded 7,758 khulan. Total length of the transect lines for investigating goitred gazelle was 8,428.84 km, and we recorded 8,586 goitred gazelles. We estimated the density and encounter rates of khulan and goitred gazelle with the interactive computer program Distance 5.0. From spring to autumn, the encounter rate (the number of observed individuals/km) of khulan varied between 0.058–0.092 in-dividuals/km, whereas that of goitred gazelle varied between 0.096–0.342 individuals/km. Suitable habitat for khulan in Kalamaili Ungulate Nature Reserve was 5,800 km2, we estimated population densities of khu-lan as 0.55 ± 0.20 individuals/km2 in spring, 0.60 ± 0.13 individuals/km2 in summer, 0.78 ± 0.19 individuals/ km2 in autumn, and 0.54 ± 0.14 individuals/ km2 in winter in the survey area, respectively. There were 3,379 khulan in spring, 3,965 khulan in summer, 5,318 khulan in autumn, and 3,829 khulan in winter, respectively. Suitable habitat for goitred gazelle were 10,000 km2 in spring and winter, 12,000 km2 in summer, and 15,000 km2 in autumn. We estimated the population densities of goitred gazelle as 1.14 ± 0.18 individuals/km2 in spring, 0.95 ± 0.12 individuals/km2 in summer, 1.08 ± 0.18 individuals/km2 in autumn, and 1.54 ± 0.31 indi-viduals/km2 in winter, respectively. We calculated the numbers of goitred gazelle as 14,286 in spring, 6,628 in summer, 8,337 in autumn, and 19,677 in winter. We gave recommendation of using the survey transects and survey data as baseline data for long-term monitoring on klulan and goitred gazelle in the Mt. Kalamaili Ungulate Nature Reserve.

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