连云港小岛山春季鸟类多样性研究

Diversity of spring birds in Small Island Hill,Lianyungang City

2019年3—5月,利用样线法对连云港小岛山春季鸟类多样性进行了调查研究。春季共记录到鸟类50种121552只,隶属于13目21科,其中广布种有31种,古北种有9种,东洋种有10种;候鸟23种、留鸟12种、旅鸟13种;国家重点保护鸟类11种,江苏省重点和国家保护的“三有”鸟类39种。小岛山鸟类多样性为1.17,均匀度为0.3,优势度为0.47,鸟类组成以鹈形目鹭科鸟类为主,占春季鸟类总数的97.94%,夜鹭、白鹭、牛背鹭是小岛山的优势鸟种。小岛山是鹭鸟等夏候鸟在城市中的重要栖息地,是城市生态系统的重要组成部分,对城市鸟类起着“避难所”和生态缓冲区的作用。

From March to May of 2019,the diversity of the spring birds in the Small Island Hill Lianyungang City was studied.A total of 121552 birds has been recorded in the investigation area using line-transect method,50 species were identified which belong to 13 families of 21 orders,including 31 of widespread species,9 Palaearctic species,10 Oriental species,23 visitor birds,12 residents and 13 migrants.Among the different kinds of birds,11 species are on the China’s National Protected Animals List and 39 species are protected by the list of Key Protection of terrestrial wildlife in Jiangsu Province,also include by the state as the list of terrestrial wildlife with important ecological,scientific and social value.The Shannon Wiener,Pielou and Berger parker index of birds in the area are 1.17,0.3 and 0.47 respectively.The bird community was dominated by egrets accounting for 97.94%of the total number of spring birds.Black-crowned night heron,little egret and cattle egret were the dominant bird species in Small Island Hill,which is showed to be the essential habitat of summer visitor birds in the city,such as herons.And as an important part of urban ecosystem,Small Island Hill provides a refuge and acts as an ecological buffer zone for urban birds.