摘要
2005—2010年,在江苏一些比较适合蜻蜓生长的水域附近进行了蜻蜓采集,用静观和网捕法记录采集路线两侧各20 m范围内的蜻蜓,鉴定统计后分析其区系成分及多样性。结果表明:江苏地区现有蜻蜓53种,隶属于11科35属;古北-东洋种类较多,有18种,占总数的33.96%;古北界种类相对较少,只有5种,约占总数的9.43%;江苏地区蜻蜓的多样性指数为3.108,均匀度指数为0.782,优势度指数为0.169,优势集中性指数为0.072;南京和连云港地区蜻蜓的物种丰富度、多样性指数和均匀度指数最高,优势集中性指数最低,这可能与这两地生境的多样性相对较高、适宜蜻蜓生存的生境多有关。
In 2005-2010,an investigation by the methods of static watching and net-catching was conducted on the dragonflies in the places nearby the water areas suitable for dragonfly growth in Jiangsu.The investigation was made in the spaces of 20 metres along the sampling lines,with the Odonata fauna and its diversity identified and calculated.A total of dragonfly 53 species were recorded,belonging to 35 genera and 11 families,among which,Palearctic-Oriental species were richer,owned 18 species and accounted for 33.96% of the total,while Palearctic species were comparatively poor,accounted for 9.43%.The diversity index was 3.108,evenness index was 0.782,and dominance index was 0.169.In Nanjing and Lianyungang,the richness,diversity,and evenness indices were the highest,and the dominance index was the lowest,possibly due to the habitats in the two areas having a higher diversity and more suitable for the dragonfly existence.
出处
《生态学杂志》
CAS
CSCD
北大核心
2011年第7期1375-1381,共7页
Chinese Journal of Ecology
基金
江苏省自然科学基金项目(07KJD180124)
南京晓庄学院"生态学"校级重点建设学科项目(2005-2008)资助
