山东湿地水鸟食性和迁徙规律的研究

对山东湿地水鸟食性和迁徒规律的研究表明,在物理环境因素和外来干扰一致或趋同的条件下,水鸟的数量分布(y)与底栖动物的生物量(x)呈线性相关关系y=-3.606+0.2157x。迁徙性鸟类特别是旅鸟构成了湿地鸟类的主体。不同水鸟的迁徙期、迁徙高峰出现的时间不同,但其迁徙的时间及顺序较为固定,各物种高峰期一般持续约15～30d。一般小型鸟类居留时间较短,迁徙时间较早;大中型鸟类居留时间较长,迁徙时间也较迟。水鸟的迁徙以家族为单位,一般成鸟先开始迁飞,幼鸟迁飞紧随其后。

Feeding Habits and Migrating Patterns of Wetland Water Birds in Shandong

The feeding habits of water birds was studied, results indicated that when the physical environmental conditions are or tend to be inconsistent with the external interference, the number of water birds (y) is linearly correlated with the amount of underwater inhabited organisms (x) with the equation: y=_3.606 0.2157 x. Migrant birds, especially passing migrant birds, constitute the majority of wetland birds. Different water bird species have different durations and peaks of migration, but the time and sequence of migration of different species are relatively stable. The peak period of all species generally last for 15- 30 days. Usually small birds have shorter stays and early migrations. Medium and large birds have longer stays and later migrations. Migration of water birds is family based, mature birds migrate first and followed by the younger ones.