华南部分地区束翅亚目(Odonata:Zygoptera)蜻蜓区系聚类分析

采用类平均法和最近相邻法对位于广东、海南、香港、台湾、澳门等地8个动物地理小区现有分布的蜻蜓目束翅亚目41属进行系统聚类分析。类平均法将澳门、内伶仃、珠江三角洲、黑石顶、尖峰岭、香港、台湾等7个小区依次逐类聚合后在最大距离处与8个小区中地处最北的南岭聚合;南岭类群与其它类群的距离最远;整体呈现基于纬度,即南北向的束翅亚目类群合并。最近相邻法将8个小区先分别聚合成岛屿型(澳门与内伶仃)、山地型(黑石顶和尖峰岭、南岭)、山地与平原混合型(香港和台湾、珠江三角洲),最终聚合成一大类;岛屿型与其它两型的距离最远,联系性最小;整体呈现基于海拔高度的聚合,即主要体现束翅亚目类群垂直分布的差异。

Cluster analysis of Zygoptera (Odonata: Zygoptera) fauna in parts of southern China

41 genera of Zygoptera located in 8 infra-regions in Guangdong,Hainan,Hongkong,Taiwan and Macao were analyzed by distance coefficient average clustering and nearest neighbor clustering.The result of distance coefficient average clustering shows that Nanling group is the farthest group from the polymer converged stage by stage of the other groups.According to the nearest neighbor clustering,Nanling,Heishiding and Jianfengling converged to a group;Pearl River plain,Hongkong and Taiwan converged to another group;the third group converged by Macau and Neilingding Island is the farthest one.As result,the former shows the latitudinal aggregation and the latter shows the aggregation based on altitude.