白鹤迁徙动态及其停歇地环境条件研究

在吉林省莫莫格保护区于2000年4－5月对途经此地的白鹤（Grus leucogeranus)种群数量和停歇地环境条件进行研究的结果表明：白鹤于4月3日左右迁来，高峰期在4月下旬，最多数量达到577只（4月27日），5月8日离开莫莫格，停歇期36天。白鹤迁徙活动受风速、气温、降雨等天气条件影响。喜栖湿草甸、浅水湖泡及湖泡中间的“旱堑”。取食鱼类及植物，以植物性食物为主。本文提出了进一步研究和保护白鹤迁徒停歇地的措施。

Migratory dynamics of Siberian crane and environmental conditions at its stop-over site

From April to May 2000, we investigated the number of Siberian crane and environment condition at their stop over site in Momoge Nature Reserve. The Siberian cranes arrive at Momoge Nature Reserve on about April 3 and leave on May 8. The period of stop over is 36 days. Most of the cranes arrive here during the end of April, and the largest number reaches 577 individuals on April 27. The activity of cranes is affected by weather condition, such as wind velocity, temperature, and rainfall. Most cranes are distributed in wet meadow, shallow water and at Hanqian in the middle of ponds. They mainly feed on plants, and also on fish in this area. We offer some recommendations for measures for research and conservation of Siberian crane.