【作者】 马志军；

【Author】 MA Zhi-Jun(Department of Biology, Beijing Normal University, Beijing 100875. China)

【机构】 北京师范大学生物学系；

【摘要】 对盐城生物圈保护区丹顶鹤越冬期的生境变迁及生境选择进行了研究.近年来,丹顶鹤的数量不断增加,其生境逐渐向保护区南部滩涂地区转移,分布形式由原来的连续分布变为岛屿状分布,生境类型由以原生湿地为主变为以人工或半人工湿地为主.丹顶鹤的生境主要有盐田,水产品养殖塘,芦苇地,草滩,盐蒿滩,麦田六种类型.在越冬的不同时期,丹顶鹤的生境利用处于变动之中.通过Neu方法对丹顶鹤生境选择的分析表明:丹顶鹤对草滩具有明显的正选择性,对盐田和麦田具有负选择性,对芦苇地无明显的选择性.在干旱季节,丹顶鹤对水产品养殖塘有着明显的正选择性.人类活动是影响丹顶鹤生境选择的主要原因之一.更多还原

【Abstract】 The habitat selection and evolution of Red-crowned Crane Grus japonensis were studiedin this article. The number of Red-crowned Crane keeps increasing in the recent years. Its habitats move to the tidal lands in the south of the Reserve; Its distribution changes from continuous to island form; its habitat type changes from original wetlands to artificial wetlands and semi-artificial wetlands. Six types of habitats are recorded in our study: saltworks , aquicultural ponds, reed lands, grassy tidal lands, lands with Saltliving Wormwood, and wheat fields. In the different wintering period, The habitats of Red-crowned Crane keep changing. Using Neu method, Analysis on the habitat selection of Red-crowned Crane shows that grassy tidal lands are positively selected, saltworks and wheat fields are negatively selected by the Red-crowned Crane. Red-crowned Crane has no apparent selectivity to reed lands. In dry weather, Red-Crowned Crane has positive selectivity to aquicultural ponds. Human activity is one of the main factors influencing the habitat selection of Red-crowned Crane更多还原