中国东部沿海地区春季猛禽迁徙规律与气象关系的研究

Study on the Regularity of Migration of Raptors and Its Relationship with Climate at East China Coast in Spring

１９８７～１９９２年的春季，在中国东部沿海地区猛禽迁徙途中的主要停歇地——山东省长岛、青岛，辽宁省老铁山地区，通过对几种主要猛禽的迁徙规律等生态、生物学特性的观察和环志研究表明：春季猛禽迁徙发生在３月初至６月底，高峰时间出现在３月底至５月上旬。利用天气系统分析和气候统计方法，对部分猛禽迁徙与气象的关系进行了探讨。春季有利于猛禽迁徙的天气条件为风力３～５级偏南风的晴朗天气（南、西南、东南风共占８７％）。早春季节，北方冷空气活动影响到长江中下游地区出现低温降雨天气，对在该地区越冬的猛禽或向北方迁徙至此的猛禽会造成一定伤亡。

In the spring of 1987～1992,studies on the migration ecology and biological characterstics of the main species or raptors had been conducted at their main roosting sites (Qingdao,Changdao of Shangdong Province,Laotieshan of Dalian City,Liaoning Province). According to the research,the north migrating raptors pass through the roosting sites from early March to late June. The migrating peak period is from late March to early May. Through the analysis and statistics of climate,it has shown that the massive migration of raptors in spring will be influenced intensively by climate. The disastrous climatic conditions in early spring will do harm to the overwintering and migrating raptors in this area. The best weather for raptor migration is on sunny days with south wind of 3～5 scale.