Study on Population Quantity of Mergus squamatus in Yiyang Wintering Habitat from 2001 to 2008
Study on Population Quantity of Mergus squamatus in Yiyang Wintering Habitat from 2001 to 2008
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Wu Jian
中科院分区：
文献类型：
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作者：
Wu Jian
2001 ~ 2008年对江西省上饶市宜阳越冬地中华秋沙鸭种群动态及生境生态因子进行了研究。结果表明：中华秋沙鸭种群在2001 ~ 2005年呈缓慢下降趋势，2006 ~ 2008年明显增加。结果表明，鳞背角金龟的越冬栖息地分布较分散，越冬栖息地生态因子的变化和人为因素的影响是导致鳞背角金龟种群数量下降的重要因素。生活条件的改善和食物来源的丰富与其种群数量密切相关。
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.squamatus 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.