广西北部湾沿海地区鸟类居留型变化分析

Analysis on the Changes of Bird Residential Types in Beibu Gulf Coastal Area of Guangxi

对近30a来在广西北部湾沿海地区的鸟类监测资料进行汇总分析。广西北部湾沿海地区共有18种鸟类的居留型发生了变化,占该区鸟类总物种数(343种)的5.2%,其中由夏候鸟变成留鸟的有6种,由冬候鸟变成留鸟的有8种,由旅鸟变成冬候鸟的有4种。广西北部湾沿海地区的鸟类群落已对全球气候变化做出了响应,更深入的研究有待于进一步的监测和观察。

The data obtained in bird monitoring in Beibu Gult coastal area of Guangxi tor nearly 30 years were summarized and analyzed. The residential types of 18 bird species in Beibu Gulf coastal area of Guangxi have changed, accounting for 5.2 percent of the total number of bird species （343 species） in this area. Among them, 6 species of summer migrants and 8 winter migrant species became residents,and 4 passenger species became winter migrants. These changes represent a way that the birds respond to global climate change, and also the important basis for reflecting the effect tendency of climate change to biodiversity. Deeper researches need further monitoring and observation.