摘要
安徽升金湖是白琵鹭（Ｐｌａｔａｌｅａｆｅｌｌ。、ｏｒｏｄｉａ）的主要越冬地之一．每年越冬数量２００～３００只．每年１０月下旬迁抵。翌年４月上中旬北迁．历１４５天左右。白琵鸳越冬期集群活动。个体越冬行为表现出很强的一致性。日（６：００～１９：００）平均觅食、休息、理羽时间分别为１８小时、８５小时、１１小时。１０：００～１５：００为觅食高峰。觅食地水深５～２０ｃｍ，休息地水深小于１０Ｃｍ或为水边陆地。夜宿地与休息地生境相；可食物为小鱼、虾、腹足类及蠕虫、觅食成功率１６±１３，５次／５ｍｉｎ。
. shenaiing lake, in Anhui Province. is one of the main wintering area forSpoonbill Plalaca leucorodia. The yearly wintering number changes from 200 to 300Spoonbills arrive in Shengiin Lake during the last ten days of October and leave duringthe t'irst ten days of April the following year. wintering in Shenaiin Lake for about 145days. Wintering Spoonbills move in groups and the activities of single Spoonbill have astrong similarity. In average, during daytime from 06: 00 to 19:00h, they spend 1. 8hours I'oraging. 8. 5 hours resting and 1. I hours preening. The hours fornl 10:00h to 15:00h are their main tbraging time. Wintering spoonbills forage only in water, the deptho f which range ti^om 5 cm to 20,cm. They rest in water less than 10 cm depth or on landnear water. The water depth of overnight roosting areas range from 5 cm to 10 cm. Theprey items include small fishes. shrimps. spiral shells and worms. Wintering Spoonbillscatch an average of 16 13. 5 prey items per five minutes observation period.
出处
《国土与自然资源研究》
1999年第1期69-71,共3页
Territory & Natural Resources Study
基金
中国野生动物保护协会1992年资助课题
关键词
升金湖
白琵鹭
越冬生态
shengin lake
spoonbill
wintering ecology
