2001～2008年中华秋沙鸭弋阳越冬区种群数量的变化
Study on Population Quantity of Mergus squamatus in Yiyang Wintering Habitat from 2001 to 2008
方弟安 1章志琴 1罗朝晖 1王艾平 1吴检1
作者信息
- 1. 上饶师范学院生命科学系,江西,上饶,334001
- 折叠
摘要
2001～2008年,通过对江西省上饶市弋阳越冬区中华秋沙鸭种群数量和越冬区生态因子进行研究,结果发现,2001～2005年间,中华秋沙鸭的种群数量在逐渐减少:而在2006～2008年间,又呈显著增加的变化趋势.且中华秋沙鸭在越冬区的生活不稳定,常沿河流逐步迁徙,只作短暂停留,越冬区的范围分布较散.越冬区生态因子的改变和人为干扰是其种群数量下降的主要原因,而其生境的改善和食物来源的丰富与其种群数量的增加有着密切的关系.
Abstract
Population change of Mergus squamatus and zoology factors of habitat were studied in Yiyang wintering habitat,Shangrao city,Jiangxi province from 2001 to 2008. The results showed that M. squamalus population had declined slowly from 2001 to 2005,but increased remarkably from 2006 to 2008. They lived in wintering habitat unstably,always migrated along the riverside and settled shortly. Their wintering habitat was distributed dispersedly. The important factors contributing to the M. squamatus population decline were change of wintering habitat zoology factors and man-made disturbance. The improvement of its living condition and the enrichment of its food source both had consanguineous relation with its population quantity.
关键词
中华秋沙鸭/弋阳越冬区/种群数量Key words
Mergus squamatus/Yiyang wintering habitat/population quantity引用本文复制引用
基金项目
江西省教育厅青年计划项目(GJJ09618)
上饶师范学院科研基金(SR200603086)
出版年
2009
国家科技期刊平台
NSTL
维普
万方数据