陕西省青头潜鸭的分布现状

Distribution Status of the Baer’s Pochard in Shaanxi Province

青头潜鸭(Aythya baeri)是世界极危级物种(CR),目前全球数量不足1000只,中国是其主要分布地。结合近年野外实地观察,对青头潜鸭在陕西省的分布状况进行了总结。2017至2021年青头潜鸭见于陕西省西安市浐灞生态保护区雁鸣湖、韩城市潘庄、榆林市红碱淖国家级自然保护区、凤翔县东风水库、西安市未央区天玑湖、华阴市罗敷湖和宝鸡市千渭之会湿地。目前青头潜鸭在陕西省的分布地仅在秦岭以北的渭河流域、黄河中游湿地和北部的榆林长城风沙区。首次发现青头潜鸭在陕西榆林刘家海子内进行繁殖。这是迄今为止所发现陕西省境内青头潜鸭繁殖的唯一记录,为青头潜鸭的保护与研究提供了基础资料。

Estimated at less than 1000 individuals,the Baer’s Pochard(Aythya baeri)is a critically endangered(CR)species,and has been receiving widely attention in the world.China is one of the main distribution ranges for this species,here we summarized the distribution of Baer’s Pochard in Shaanxi Province based on field observations.The bird was found at Yanming Lake in Chanba Ecological Reserve of Xi’an City,Panzhuang village in Hancheng City,National Nature Reserve of Hongjiannao in Yulin,Dongfeng reservoir in Fengxiang County,Tianji Lake in Weiyang District Xi’an City,Luofu Lake in Huayin City Shaanxi Province and Qianweizhihui Wetland in Baoji City,Shaanxi Province from 2017 to 2021(Table 1).The results showed that the distribution of Baer’s Pochard was only in the Weihe River basin to the north of Qinling Mountains,the wetlands in the middle reaches of the Yellow River and Yulin Great Wall sandstorm area in the North of Shaanxi Province.The Baer’s Pochard was first found of breeding at Liujiahaizi in Yulin.Our work provides basic information for future protection and research of this critically endangered species in Shaanxi Province.