北京玉渊潭公园鸟类群落特征

2005年6月～2006年5月根据季节每月2～4次调查玉渊潭公园鸟类的物种和数量，结合玉渊潭公园所特有的地理位置、自然环境，对公园鸟类群落结构及其季节变化进行分析探讨，结果显示：玉渊潭公园中共记录到鸟类49种，其中迁徙鸟类33种，占67％，留鸟16种，占33％。公园鸟类群落呈现较强季节性，从整体上看，物种数和总数量呈现春秋两个高峰，夏季最低，鸟类总数量的季节变化呈现波动性。

Aves Community in Yuyuantan Park, Beijing

During Jun,2005 to May,2006,the species number and abundance of the bird communities in Yuyuantan Park were surveyed 2 or 4 times every month according to different seasons.49 species were recorded,among them,33 were migrant,accounting for 67% of total avifauna and 16 permanent residents,accounting for 33%.The results showed the bird community structures changed greatly between seasons.The species number and abundance appeared two peaks in spring and autumn but the lowest in summer.The abundance of bird in the park fluctuated between seasons.