我国古代扬子鳄减少原因考证  

Textual Research on the Reason of Chinese Alligator Population Decrease in Ancient Age

作　　者：李晓春[1] 吴孝兵[2] 马陵合[1] 

机构地区：[1]安徽师范大学,芜湖241000 [2]安徽师范大学生命科学学院重要生物资源保护与利用安徽省重点实验室,芜湖241000

出　　处：《动物学杂志》2006年第1期137-142,共6页Chinese Journal of Zoology

基　　金：国家自然科学基金资助项目(No.30270217);安徽省优秀青年基金(No.04043049);安徽省高校生物环境与生态安全省级重点实验室基金及安徽省学术与技术带头专项基金资助

摘　　要：曾经在我国古代黄河、长江流域生存的扬子鳄(Alligator sinensis)如今已成濒危物种,其减少原因在长江流域与黄河流域是有区别的。黄河流域扬子鳄灭绝与栖息地生态恶化有关,而长江流域扬子鳄的减少主要是因古人稻作生产所致,此外气温变化和人类捕杀也影响了它的生存数量。Chinese Alligator（ Alligator sinensis） widely distributed in the valley of Yangtze River and Yellow River historically. However, it has become a critical endangered species. The reasons for its population decrease are different between in the valley of Yangtze River and Yellow River. The extinction of Chinese Alligator in the Yellow River was caused by ecological deterioration of habitat. Paddy cultivation by Chinese ancient people was recognized the main reason for the population decrease in the Yangtze River Valley. Additionally, temperature fluctuation and hunting also influence its population size.

关 键 词：扬子鳄 生态环境 栖息地 

分 类 号：Q915.5[天文地球—古生物学与地层学]