【摘要】 在内蒙古自治区科尔沁右翼前旗与吉林省镇赉县接壤的大岗荒漠草原地带,采用样带法对大鸨进行了数量统计及生态观察。结果表明,本区域内有5个越冬种群,调查到大鸨实体数量61只,数理统计为261只(抽样强度为1.97%)。大鸨主要在农田荒地和矮草原地带栖息、觅食,40 cm以上的高草原仅见逃离隐蔽之用,西伯利亚杏疏林和贝加尔针茅密度大的区域未见有大鸨栖息活动。更多还原

【Abstract】 In Dagang desert steppe that is border of Horqin Right Wing Front Banner in Inner Mongolia Autonomous Region and Zhenlai County of Jin Province,a mathematical statistics and an ecological observation to Otis tarda was conducted by sample strip method.The results show that the region has five wintering populations,related to 61 Otis tarda by the survey and 261 for mathematical statistics(by sampling intensity of 1.97 per cent).Waste farmland and dwarf grassland are main place for its habitat and searching for food,grasslands above 40 cm have the purposes for its fleeing and hiding only,the habitat activities haven’t be seen in sparse woodland of Prunus sibiricus and dense forest of Stipa baicalensis.更多还原