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当前位置: 首页 > 文章 > 新疆河狸的栖居条件、家域及洞巢分布格局 林业科学研究 1992 (5) 565-569
Position: Home > Articles > Habitat Conditions, Home Range and Burrow Distribution Pattern of Beavers in Xinjiang Autonomous Region Forest Research 1992 (5) 565-569

新疆河狸的栖居条件、家域及洞巢分布格局

作  者：
于长青;邵闻;葛炎;贾陈喜
单  位：
山东大学生物系;山东省林业厅科教处;新疆维吾尔自治区青河县布尔根河狸保护站;新疆维吾尔自治区青河县布尔根河狸保护站 中国林业科学研究院林业研究所;新疆大学生物系90级研究生
关键词：
河狸;栖居条件;家域;洞巢分布格局
摘  要：
新疆河狸优先选择水深137 cm、岸高101 cm左右及沿岸河谷林丰盛的河段掘洞栖居;河谷林密度、水源及地形条件是决定其栖息地适度的主要因子。新疆河狸的家域平均为1.2km(沿河岸长),每个家域平均拥有洞巢22个,洞巢沿河岸呈集团分布,且主要集中于越冬洞(巢)附近。河狸家族的领域即为越冬洞(巢)周围的洞巢密集区,平均长480m。新疆河狸种群通过其领域性及繁殖力的抑制与否来调节种群密度,其最大环境容纳量约为每公里河段1个家族。河谷林密度是新疆河狸的种群限制因子。
译  名：
Habitat Conditions, Home Range and Burrow Distribution Pattern of Beavers in Xinjiang Autonomous Region
作  者：
Yu Changqing(The Research Institute of Forestry CAF)Ge Yan(The Burgen River Beaver Researve of Xinjiang)Shao Wen(The Forestry Department of Shandong Province)Jia Cheaxi(Biology Department of Xinjiang University)
关键词：
beaver (Castor fiber) habitat conditions home range burrow and lodge distribution pattern
摘  要：
Studies in the Burgen River Beaver Researve in 1989 stated that the beavers always selected places with depth of around 137cm of the water and height of around 101 cm of the bank with abundant trees to dig burrows and build lodges. Stand density, water and topographic conditions were the primary factors determining the fitness of a habitat. The average home range of a beaver colony was 1.2km along the river, containing 22 burrows and lodges which showed clumped distribution pattern and concentrated near the overwintering burrow (or lodge). It's concluded that the clumped trees is the main reason resulting in the clumped burrows and lodges. The area concentrated with burrows and lodges near the overwintering burrow is the territory of a beaver colony averaging 480 m along the river. The beaver's carrying capacity is about one colony per kilometer along the river. Stand density is the limiting factor of the beavers.

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