目录摘要...................................................................................................................1关键词................................................................................................................11 前言32 研究区域概况32.1 地理位置及分区32.2 气候42.3 气温43 研究方法43.1 粪便和参照植物采集43.2 溶液配制53.3 粪便及参照植物处理53.4 装片制作53.5 装片判读和分析54 结果与分析64.1 整个繁殖期食物组成及相对密度64.2 植物不同片段在粪便中的百分比95 讨论95.1 斑头雁在繁殖期取食植物95.2 斑头雁在不同阶段的取食植物分析106 结论11参考文献12 致谢................................................................................................................11肃北县盐池湾斑头雁食性分析摘 要： 2019 年 4 月至 6 月，在甘肃盐池湾国家自然保护区采集斑头雁繁殖期粪便，室内采用粪便显微分析方法研究了斑头雁繁殖期的食性。结果表明，斑头雁繁殖期共取食的植物 11 科 19 种，主要取食对象为莎草科植物，在繁殖期内平均占的比例最高，为43.14%，蔷薇科最少，为 1.01%。除莎草科植物以外，在繁殖期不同阶段对其他植物取食偏好有所不同。繁殖前中期取食三脉梅花草叶较多，相对密度为 11.20%,12.43%，繁殖后期取食小眼子菜叶较多，相对密度为 9.13%，繁殖末期取食海韭菜叶等水生植物较多，相对密度为 8.97%。在整个繁殖期内，斑头雁取食叶部占比最高，达到 50% 以上。关键词： 斑头雁；食性；粪便分析；盐池湾Analysis of feeding habits of barnacle goose in Yanchiwan of Subei County1Abstract: From April to June 2019, the feces of the bar-headed goose during the breeding period were collected in Yanchiwan National Nature Reserve, Gansu, and the microscopic analysis of feces was used to study the diet of the bar-headed goose during the breeding period. There are 19 species of 11 plants in the family, the main feeding objects are Cyperaceae plants, with the highest average proportion during the breeding period, 43.14%, and Rosaceae the least, 1.01%. The feeding preference of other...
