青海湖黑颈鹤的种群数量及分布

Numbers and distribution of Black-necked Cranes (Grus nigricollis)at Qinghai Lake

摘要: 2009—2012 年对青海湖区域黑颈鹤(Grus nigricollis)种群数量和分布进行调查。结果表明,该区域种群数量最高值为104只,出现在2010年的繁殖后期。参与繁殖的黑颈鹤的数量最高为18对,出现在2012年的繁殖期。青海湖黑颈鹤分布地点相对固定,在4年的调查中共记录到3个迁徙到达后的集中地点,分别是泉湾湿地、甘子河湿地和沙岛;4个迁徙离开前的集群地点,分别是沙柳河口、那仁湿地、泉湾湿地和甘子河湿地。2009和2012年共记录到黑颈鹤在青海湖的繁殖地点13个,其中4年内固定的繁殖地点有9个,分别是泉湾湿地、仙女湾、沙柳河口、那仁湿地、甘子河湿地、沙岛、小泊湖、倒淌河湿地和黑马河湿地。

Abstract: We surveyed Black-necked Cranes (Grus nigricollis)from 2009-2012 at the Qinghai Lake area. The highest number was 104 in 2010 at the end of the breeding season. Eighteen breeding pairs of Black-necked Cranes, the highest counts among all years, were recorded in 2012. Right after arriving in Qinghai Lake, the cranes mainly moved around at Quanwan, Ganzihe, and Shadao, while before departure for wintering areas they congregated at Shaliuhe, Naren, Quanwan, and Ganzihe. There were a total of 13 breeding sites of the cranes from 2009-2012. Among the 13, nine were used every year, including Quanwan, Xiannuwan, Shaliuhe, Naren, Ganzihe, Shadao, Xiaopohu, Daotanghe, and Heimahe.