摘要
通过对丹顶鹤越冬期间在盐城国家级自然保护区内人工湿地的夜栖地调查,得出鹤群夜栖分布数量及其动态规律,进而提出对该种群与夜栖地的管理举措。该项工作主要借助望远镜、GPS、照相机,采用直接计数法统计数量,往年数据则引用参考文献。结果表明:人工湿地中丹顶鹤的夜栖分布数量随着环境的改变而改变,其中安全度和水位为其主要限制因子。因此控制人工湿地冬季水位,俣护栖息环境不受人为影响是丹顶鹤安全越冬的主要保护措施。本文根据上述研究结果,提出了管理建议。
Quantitative distribution in night and its dynamic regularities of the red - crowned crane on the artificial wetland in Yancheng national nature reserve in winter was surveyed by the statistical method of direct counting their number using telescopes, GPS and cameras.Results indicated that the quantitative distribution of wintering cranes in night varied with changes in the environment and among factors influencing, degree of safety and the water level were main ones.Therefore, control of the water in the artificial wetland in winter and protection of the wetland against human disturbance should be the main protective measures. Management suggestions were discussed.
基金
江苏省科技发展计划项目(BS2006534)
江苏省滩涂生物资源与环境保护重点建设实验室资金项目(JLCBE05040)子项目
江苏盐城科技发展计划项目(YZ2005010)
关键词
丹项鹤
人工湿地
夜栖地
分布动态
越冬期
Red- crowned crane
Artificial wetland
Night quantitative distribution
