摘要
盐城沿海獐分布的北限为射阳和滨海县交界的扁担河口，南限以如东和海安交界的北凌港闸为界。分属射阳、大丰、东台、海安４县，该区域中獐种群已被隔离成几个小种群。现存数量估计为８５０—１５２３头。种群的季节波动很大，繁殖前后种群数量相差近一倍。野外种群性比平均为♀：♂＝１００：７７．３。成幼比＝１．１９：１．００；８月份调查，平均每头母獐育仔１．５３头。该分布区獐喜欢选择有斑块状高草相嵌的矮草草滩栖息。盐城地区獐数量因滩涂围垦和开发而急速下降，急需采取有力对策加以保护。
The present paper aims at describing some aspects on current status, distribution and habitat use of the Chinese water deer (Hydrotes inermis) in Norther Jiangsu Coastal Area.At present, the Chinese water deer distribute from mouth of Biandan River to the Bailinflood gate along the narrow coastsl area in Sheyang, Dafeng, Dengtai and Haian County(27-41 °N, 111-122°E). The population was separated into several small groups.According to the investigation, the population size varied from 850-1523 individuals and is decreasing because of habitat loss.The sex ratio of male to female is 77.3: 100. The ratio of fawn to adult was 1.19: 1.00.Average natality is l.53 per adult female according to investigation conducted in August.Water deer selected habitat of short grass with patches of tall grass for rest.
基金
亚洲湿地局研究基金
中国自然科学基金
关键词
獐
种群数量
分布
栖息地
Water deer, Population size, Distribution, Habitat
