宁夏贺兰山国家级自然保护区鸟类区系组成及其特征研究

Structure and Characteristics of Avifauna in Helan Mountain National Nature Reserve of Ningxia

对宁夏贺兰山国家级自然保护区的鸟类进行了调查,共记录到鸟类196种,隶属17目41科。其中留鸟54种,夏候鸟84种,旅鸟53种,冬候鸟5种。繁殖鸟(夏候鸟和留鸟)138种。记录鸟类种数占宁夏地区鸟类总数的61.3%。鸟类区系组成以古北界种类为主,共160种,东洋界鸟类24种,广布型11种。古北界成分以北方型和中亚型占优势,有一定东北型成分,反映出蒙新区西部荒漠亚区特点。

Investigation was carried out on the birds ocrring in the Helan Mountain National Nature Reserve. One hundred and six species of birds were ovserbed, belonging to 17 orders and 41 families, including 54 species of residents birds, 84 summer visitors, 53 migrants, 5 winter visitors, and 138 breeding birds （summer visitors and residents）. The number of the bird species observed accounted for 61.3% of the bird species occurring in Ningxia region. The avifauna was mainly composed of Palaearctic birds, 160 species in total, 24 species were oriental breeding birds, 11 species were wide-distributed birds. The element of the north and mid-Asia plays an important role in the Palaearctic realm, including some north-eastern species, which reflects the characteristics of the sub desert in the west of Mongo-Xinjiang region.