扎龙湿地恢复初期丹顶鹤孵化期觅食生境选择

Feeding Habitat Selection of Breeding Red-crowned Crane during Initial Recovery Stage of Zhalong Wetland

2002—2005年3—5月,在扎龙国家级自然保护区通过定点观察法、样方法、因子测定法等对丹顶鹤孵化期的觅食生境选择进行了研究,旨在为积累濒危鸟类繁殖生态学的基础资料。研究结果表明:孵化期丹顶鹤对觅食生境的选择具有特异性和非随机性,警戒因子、食物保障因子和生境类型是其觅食生境选择的主要因子。

A research on feeding habitat selection of Red-crowned Cranes （ Grus japonensis） during the breeding period was conducted from March to May during 2002 and 2005 in Zhalong Nature Reserve by the survey methods of fixed-spot observation, scan sampling method, focus sampling method, GPS positioning, plot sampling measurement, and factor measurement. Result shows that during the breeding period, the feeding habitat selection of Red-crowned Cranes has the characteristics of specificity and non-randomicity, and precaution factor, food factor and habitat type are the most important ingredients of feeding habitat selection for Red-crowned Cranes.