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李忠秋, 蒋志刚, . 2006: 青海布哈河上游地区同域分布的普氏原羚与藏原羚草青期的集群比较. 动物学研究, 27(4): 396-402.
引用本文: 李忠秋, 蒋志刚, . 2006: 青海布哈河上游地区同域分布的普氏原羚与藏原羚草青期的集群比较. 动物学研究, 27(4): 396-402.
LI Zhong-qiu , , JIANG Zhi-gang , *. 2006. Group Patterns of Sympatric Przewalski's Gazelle and the Tibetan Gazelle During the Green Grass Period in Upper Buha River, Tianjun County,Qinghai Province. Zoological Research, 27(4): 396-402.
Citation: LI Zhong-qiu , , JIANG Zhi-gang , *. 2006. Group Patterns of Sympatric Przewalski's Gazelle and the Tibetan Gazelle During the Green Grass Period in Upper Buha River, Tianjun County,Qinghai Province. Zoological Research, 27(4): 396-402.

青海布哈河上游地区同域分布的普氏原羚与藏原羚草青期的集群比较

Group Patterns of Sympatric Przewalski's Gazelle and the Tibetan Gazelle During the Green Grass Period in Upper Buha River, Tianjun County,Qinghai Province

  • 摘要: 2005年6—7月和9月,运用样线法研究了青海省天峻县布哈河上游同域分布的普氏原羚(Procapra przewalskii)和藏原羚(Procapra picticaudata) 的集群行为。该地区的普氏原羚和藏原羚集群类型分为雌性群、雄性群、混合群及母子群。四种集群类型中,雄性群出现的频次均为最高(普氏原羚和藏原羚分别为41%和50%);其次为雌性群(普氏原羚和藏原羚分别为34%和30%);再次为母子群和混合群。比较集群规模发现,除藏原羚母子群显著大于普氏原羚(P=0.015)外,两个种其余集群类型规模差异不显著。集群规模出现频次:单只出现的频次最高(普氏原羚和藏原羚分别为21.9%和18.7%);2—8只,普氏原羚和藏原羚分别为62.6%和67.6%;大于9只,普氏原羚和藏原羚分别仅占15.5%和13.7%。另外,普氏原羚和藏原羚产羔后平均集群规模显著减小(普氏原羚,P=0.014;藏原羚,P=0.008);在雄性群、混合群规模均较产羔前略有增大的情况下,雌性群的规模却显著减小(普氏原羚,P<0.001;藏原羚,P=0.002),成为普氏原羚和藏原羚产羔后集群规模变小的主要原因。布哈河上游同域分布的普氏原羚和藏原羚草青期的集群类型、集群规模相差不大。

     

    Abstract: A survey on the grouping patterns of sympatric Przewalski's gazelle (Procapra przewalskii) and the Tibetan gazelle (Procapra picticaudata) was conducted from June to July and September, 2005 in the upper Buha river, Tianjun county, Qinghai province, China. Group types of the two Chinese endemic gazelles could be classified into female group, male group, mixed group and motheroffspring group. Of these four types, the male groups were 41% and 50% of the total in Przewalski's gazelle and the Tibetan gazelle, respectively. The female groups were 34% and 30% of the total in Przewalski's gazelle and the Tibetan gazelle, respectively. Sizes of different group types of Przewalski's gazelle were not significantly different, expect the mother-offspring groups (P=0.015). The frequency of solitary gazelles, 2-8 individuals and >9 individuals were 21.9%, 62.6% and 15.5% of the total in Przewalski's gazelle respectively and 18.7%, 67.6% and 13.7% of the total in the Tibetan gazelle respectively. While group sizes of the male groups and the mixed groups increased insignificantly after lambing, the female group size decreased significantly in both Przewalski's gazelle and the Tibetan gazelle (Przewalski's gazelle: P<0.001, Tibetan gazelle: P=0.002). Consequently, average group size decreased significantly in both gazelles (Przewalski's gazelle: P=0.014, Tibetan gazelle: P=0.008). There were no significant differences in group patterns between Przewalski's gazelle and the Tibetan gazelle during the green grass period.

     

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