嘉陵江中游阆中段冬季水鸟多样性

Diversity of Winter Waterbirds in Langzhong Section of the Middle Reaches of the Jialing River

2015年1月至2019年1月采用固定样线法对嘉陵江中游阆中段冬季水鸟进行了调查,共记录到30种水鸟,隶属7目9科。调查中发现四川省重点保护物种有小??、黑颈??、凤头??,普通鸬鹚和黑水鸡5种。嘉陵江阆中段冬季水鸟的优势种为斑嘴鸭和骨顶鸡2种,共占观察水鸟总数的40.95%。研究显示人为干扰程度高的样线鸟类多样性较低,表明人为干扰是导致该区域鸟类多样性较低的主要原因。

From January 2015 to January 2019, fixed line transects method was used to investigate the winter waterbirds diversity and abundance in Langzhong section of the middle reaches of the Jialing River. A total of 30 species of waterfowls was recorded, belonging to seven orders and nine families. Five Sichuan provincial key protected birds, including Gallinula chloropus, Phalacrocorax carbo, Podiceps cristatus, Podiceps nigricollis, Trachybaptus ruficollis, were recorded. Anas poecilorhyncha and Gallinula chloropus were dominant species of waterfowls in Langzhong section of the Jiangling River, accounting for 40.95% of the total number of observed waterfowls. This study showed that the waterbirds diversity in the line transects with more serious human disturbance was lower,indicating that human disturbance was the main reason for the lower birds diversity in this region.