洪泽湖冬春季鱼塘生境中鹬类群落特征与栖息模式

2005年冬季和2006年春季及冬季对洪泽湖东部湿地自然保护区内淮河入洪泽湖河口处(33°06′~33°07′N,118°29′~118°30′E)人工鱼塘生境中鹬类群落进行了研究。设置了4个样地,总面积157hm2。共记录到鹬类19种,其中冬季10种,春季15种。从数量上看,冬季鱼塘中的鸟类总数量远大于春季。在冬春季滞留期间,鹬类种群数量变动比较剧烈,反映了其迁徙集中的特点。鹬类主要在鱼塘生境中休息和觅食,对鱼塘内泥滩和浅水区小生境利用率最高。洪泽湖地区的鱼塘生境和渔业方式使鱼塘成为鹬类冬、春季的重要栖息地。

Wader Bird Community in Winter and Spring at Fish Ponds in Hongzehu Lake Wetlands

The bird species and population size at four sampled fish ponds were recorded in Hongzehu Lake Wetland(33°06'-33°07'N,118°29'-118°30'E)in two winters(2005 and 2006),and one spring(2006).The size of four fish ponds was 157 hm².Total of 19 species of wader birds were recorded during the study period,10 species in winter and 15 species in spring respectively.The quantity of wader birds occurred in winter was much higher than that in spring.The population size of the four major species varied dramatically during their staying period,which indicates that they are on the way of migration.Two behaviors,resting and foraging,were occurred observed at naked mud and shallow water area.The special fishing pattern at the ponds provides winter habitats for the waders.