哀牢山北段大中山候鸟聚集地秋季夜间迁徙鸟类多样性

Diversity of Autumn Nocturnal Migrating Bird in Dazhongshan Bird-banding Site,Northern Ailao Mountains

环志是研究迁徙鸟类的重要途径。云南省哀牢山北段大中山是鸟类迁徙的重要通道,但缺乏具体的研究数据。1997年、2010年和2011年秋季夜间迁徙鸟类环志研究的结果表明,哀牢山北段大中山捕获到的夜间鸟类有108种2330只,分属10目24科。其中,以雀形目鸟类为主,占总捕获数量的78.3%,捕获优势种为树鹨(占捕获数量的16.95%)、红喉姬鹟(13.39%)、红尾伯劳(9.83%)、红喉歌鸲(8.71%)和栗鹀(4.80%);水禽占捕获鸟类总种数的16.7%,与云南其他地点的研究结果相似。由于水禽是传播禽流感的主要载体,候鸟聚集地存在传播禽流感的风险,春季也有候鸟翻越哀牢山,因此有必要开展春季鸟类环志工作。

Bird-banding is one of key approaches to study migrating birds. There was little data in detail on migrating birds of Dazhongshan, an important bird migrating corridor in Northern Ailao Mountains, Yunnan province. Results based on bird-banding in 1997, 2010 and 2011 indicated that 2330 autumn migrating birds in total, belonging to 108 species, 24 families and 10 orders, were captured in Dazhongshan bird-banding site, northern Ailao Mountains, Yunnan province. Among the captured bird species, 78.3% belonged to Passerines; the dominant species were Anthus hodgsoni （accounting for 16.95% of captured individuals）, Ficedula parva （ 13.39% ）, Lanius cristatus （9.83%）, Luscinia calliope （8.71%） and Emberiza rutila （4.80%） ; and 16.7% were water birds. The results were similar with those found in the other bird- banding sites. The authors argued that the potential bird-flu risk in bird-banding sites were caused by water birds which were main carriers of bird-flu, and that spring bird-banding is necessary due to the fact that migrating birds flew over the Ailao Mountains in spring.