【摘要】 1997年 1 2月～ 1 998年 3月对山西五鹿山保护区的褐马鸡种群密度进行了调查。越冬期和繁殖期的种群密度分别为 1 2 67只 km2 和 7 3 9只 km2 。通过对三个地区繁殖密度的比较 ,发现五鹿山地区种群密度偏低。这可能与该地区栖息地的质量日益恶化有关。更多还原

【Abstract】 Population size of Brown-eared Pheasant was surveyed in Wulushan Nature Reserve from December in 1997 to March in 1998. Population densities are 1267 ind./km2和739 ind./km2 respectively in winter and spring. Compared with Luyashan and Pangquangou Nature Reserve, the breeding density in Wulushan Nature Reserve is lower than the two others, which may be related to habitats deterioration.更多还原