摘要
2015～2017年,对天目溪中华秋沙鸭越冬种群进行了监测。结果发现,中华秋沙鸭种群大小出现最多的年份是2016年(10只),最少是2015年(5只);其平均雄雌性比为1∶3. 82。中华秋沙鸭主要栖息于较开阔的河道,河宽30～60 m,附近有沙洲存在;水体较浅,水深40～60 cm;水流平缓,水的流速为0. 3～0. 5 m/s。中华秋沙鸭对人为干扰很敏感。人为干扰主要有捕鱼活动、采砂活动及家鸭养殖等。目前天目溪中华秋沙鸭保护工作中亟待解决的问题是实施沙场整治、禁止捕鱼和取消河道养鸭,同时应建立中华秋沙鸭监测网络,开展保护宣传,提高当地居民的保护意识。
We monitored a Chinese merganser(Mergus squamatus)wintering population in Tianmu River during 2015-2017.The largest population of Chinese merganser was recorded in 2016(10 individuals),the smallest was in 2015(5 individuals),and the average male-female ratio was 1:3.82.They mainly inhabited broad river with width of 30-60 m and a sandbar nearby.Water depths were shallow at 40-60 cm and the water surface were flat.The flow rate was 0.3-0.5 m/s.Mergansers were sensitive to human disturbance mainly including fishing,dredging and duck breeding.We recommend renovation of sandbars and banning of fishing and river duck breeding to enhance protection of Chinese merganser in Tianmu River.At the same time,a monitoring network for Chinese merganser should be established,and conservation awareness should be raised among local residents to enhance protection.
作者
梅爱君
刘佳
鲁庆斌
高欣
徐卫南
Mei Aijun;Liu Jia;Lu Qingbin;Gao Xin;Xu Weinan(School of Animal Science and Technology,Zhejiang Universityof Agroforestry,Hangzhou,311300,China;Forestry Bureau of Lin an District,Zhejiang Province,Hangzhou,311300,China)
出处
《野生动物学报》
北大核心
2018年第4期958-961,共4页
CHINESE JOURNAL OF WILDLIFE
基金
浙江省临安区政府支持项目(L20170203)
浙江省林业科学研究院项目(H20160007)
关键词
中华秋沙鸭
天目溪
种群特征
栖息地
人为干扰
Chinese merganser
Tianmu River
Population characteristics
Habitat
Human disturbance
