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江龙玛曲国家湿地公园鸟类物种多样性及分布特点

Species diversity and distribution characteristics on birds in Jianglong Maqu National Wetland Park

  • 摘要: 2021-2022年7月至8月,采用样线调查和样点调查法对西藏江龙玛曲国家湿地公园内鸟类物种多样性及分布特点进行实地调查,共记录到鸟类9目17科34种,种类组成以雀形目、鸻形目、雁形目为主,区系类型以古北种为主。国家重点保护鸟类6种,占总种数的17.64%,其中国家Ⅰ级重点保护鸟类3种,分别为黑颈鹤Grus nigricollis、胡兀鹫Gypaetus barbatus和猎隼Falco cherrug;国家Ⅱ级重点保护鸟类3种,分别为高山兀鹫Gyps himalayensis、大鵟Buteo hemilasius和纵纹腹小鸮Athene noctua。两年的生物多样性指数以及均匀度指数表明,湿地公园内鸟类组成变化不大。3种典型生境鸟类群落物种丰富度从多到少排序为湿地(27种)、草地(21种)、村庄(6种),其中湿地生境鸟类丰富度最高,占总种数的79.41%。

     

    Abstract: The species diversity and distribution characteristics of birds in Jianglong Maqu National Wetland Park, were investigated by line transect and site survey from July to August 2021-2022. A total of 34 species of 9 orders, 17 families were recorded. The species composition was mainly Passeriformes, Charadriiformes and Anseriformes, and the faunal types were mainly Palaearctic. There were 6 species under national key protection, accounting for 17.64% of the total species, including 3 species under national key protection class I, namely Grus nigricollis, Gypaetus barbatus and Falco cherrug. Focus on the protection of national classⅡ 3 species, respectively, Gyps himalayensis, Buteo hemilasius and Athene noctua. The biodiversity index and evenness index of two years showed that there was little change in bird composition in the wetland park. The species richness of the three typical habitats was ranked as wetland (27 species), grassland (21 species), and village (6 species). The bird richness of wetland habitat was the highest, accounting for 79.41% of the total species.

     

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