扎龙自然保护区春季水禽的调查

水禽是扎龙保护区的主要保护对象和湿地生态系统的重要组成部分。为了监测扎龙保护区鸟类的动态变化,2011年3—5月,我们对湿地内迁徙水禽和繁殖水禽的数量和种类等做了系统的调查。调查结果显示:2011年扎龙湿地春季迁徙水禽35种,繁殖水禽46种;迁徙时间从3月中旬持续到5月上旬;扎龙湿地实施补水后,繁殖鹤类的数量较补水前显著增多;与以往的监测数据比较,黑翅长脚鹬等鹬类和白翅浮鸥、须浮鸥等鸥类的数量有逐年增加的趋势,黑水鸡、骨顶鸡以及苍鹭、草鹭等水禽的数量趋于减少。

Investigation on Waterfowls of Zhalong Nature Reserve in Spring

Waterfowls are the main protected objects of Zhalong nature reserve and important component of whole Zhalong wetland ecosystem.In order to monitoring trends of birds of the reserve,the quantity & the kinds of migration birds and breeding one in Zhalong wetland were systematicly investigated from March to May,2011.Result shows that there are 35 kinds of migration birds and 46 kinds of breeding one in the wetland in spring in 2011.The migration period is from mid-March to early May.The breeding cranes quantity increase significantly after pouring water into Zhalong wetland.In contrast to past monitoring data for birds of Zhalong wetland,the quantity of sandpipers including Himantopus mexicanus,and the gulls quantity including Chlidonias leucoptera & Chlidonias hybridus have a increasing trend year by year.On the other hand,the quantity of waterfowls,including Gallinula chloropus,Fulica atra,Ardea cinerea & Ardea purpurea and other waterfowls tend to reduce.