生物多样性 ›› 2004, Vol. 12 ›› Issue (5): 488-493.  DOI: 10.17520/biods.2004060  cstr: 32101.14.biods.2004060

所属专题： 青藏高原生物多样性与生态安全

• 论文 • 上一篇    下一篇

藏原羚集群行为的初步研究

连新明1,2，苏建平1，张同作1,2，曹伊凡1   

  1. 1 （中国科学院西北高原生物研究所，西宁810001）
    2 (中国科学院研究生院，北京 100039)
  • 收稿日期:2004-03-18 修回日期:2004-07-20 出版日期:2004-09-20 发布日期:2004-09-20
  • 通讯作者: 苏建平

Grouping behavior of the Tibetan gazelle (Procapra picticaudata) in Hoh Xil region, China

LIAN Xin-Ming1,2, SU Jian-Ping1*, ZHANG Tong-Zuo1,2, CAO Yi-Fan1   

  1. 1 Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001
    2 Graduate School of the Chinese Academy of Sciences,Beijing 100039
  • Received:2004-03-18 Revised:2004-07-20 Online:2004-09-20 Published:2004-09-20
  • Contact: SU Jian-Ping

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被引次数

Baidu 29 | CSCD 10

摘要： 2002年10月至2003年12月，在可可西里对藏原羚（Procapra picticaudata）的集群行为进行了初步研究。将其集群划分为雌性群、雄性群、母仔群、雌雄混群和独羚5种类型。共统计藏原羚924群次，计3643只次。其中，雌性群525群次，占56.8%，为最多的集群类型；其余为独羚（26.1%）、雄性群（11.0%）、母仔群（3.0%）和雌雄混群（3.0%）。不同大小集群的比例亦有极显著差异，其中2-10只的集群占70.0%，独羚占26.1%，其余为3.9%；最大集群为17只。另外，选择2-8只的集群的个体数占72.9%，选择8只以上集群的个体数为20.5%，独羚仅占6.6%，选择不同大小集群的个体数的差异也极为显著（P<0.001）。除独羚外，其余4种集群类型的集群大小存在极显著差异。独羚作为一种特殊的集群类型，其雄性个体的比例占到68.1%，这说明雄性个体比雌性更容易形成独羚。总体而言，藏原羚的集群以雌性群为主，最适集群大小为2-8只。

关键词: 分布, 动态, 微生物

AbstractThe Tibetan gazelle (Procapra picticaudata) is an endangered species inhabiting theQinghai-Tibetan Plateau. From October 2002 to December 2003, we observed 924 groups (3643 individuals) of Tibetan gazelles in Hoh Xil region. These groups could be classified into five types.Female groups (525) were the major type, accounting for 56.8%. Solitary gazelle (a special group type), male groups, mother-calf groups and mixed groups made up 26.1%, 11.0%, 3.0% and 3.0%, respectively. Group size ranged from one to 17 individuals. Groups of 2-10 individuals, solitary gazelle groups and larger groups (>10 individuals) accounted for 70.0%, 26.1% and 3.9%, respectively. 72.9% of gazelles were observed in group with sizes of 2-8 individuals, while 20.5% were observed in group sizes > 8 and 6.6% were solitary. A chi-square test showed that the frequencies of individuals in different group sizes were significantly different (P<0.001). Group sizes varied significantly among different group types (Kruskal-Wallis H test,P<0.001). There were significantly more males (68.1%) than females (P<0.001) in solitary groups. To sum up, female group was the main group type of Tibetan gazelles, and the optimal group size was 2-8 individuals.

Key words: distribution, fluctuation, microorganism

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