福建省两栖类物种多样性评估

地区性物种多样性评价是当前全球生物多样性研究的重要组成部分。本文采用G-F指数对福建省两栖类物种多样性进行评估，同时利用弦距离类间平均连锁的方法对福建省22个县（市）和5个两栖动物地理省进行聚类分析。结果表时：福建省各县（市）的两栖类物种多样性差异较大，其中武夷山市两栖类物种多样性的G指数，F指数和G-F指数分别为2.978,4.863和0.388。处于华中区的3个地理省（闽北、闽东和闽西地理省）首先聚类，而后与处于华南区的闽中地理省聚类，最后与闽南地理省合并。聚类结果与福建省两栖动物地理区划大体一致，但个别县（市）不太相符，作者建议将大田县划归在华中区的闽西地理省。

Evaluation of amphibian species diversity in Fujian

Evaluation of regional species diversity is an important component in studying global biodiversity. In this paper, amphibian species diversity (ASD) in Fujian Province was evaluated using the G-F index and cluster analysis with chord distance (CRD) to measure between-groups linkages. The analysis was conducted on the amphibian compositions in 22 county or city areas and five zoogeographic divisions. Differences between counties or cities were significant. For the G-index of ASD, Wuyishan scored the highest value (2.465) among the counties or cities; and central Fujian zoogeographic division scored 2.534, the highest value of the five divisions. The G-index, F-index and G-F index of the entire Fujian ASD are 2.978, 4.863 and 0.388, respectively. The cluster analysis based on CRD showed that the northern, eastern, and western Fujian zoogeographic divisions, located in Central China Zoogeographic Region, formed a group, which successively clustered with the central and the southern zoogeographic divisions in the South China Zoogeographic Region. The linkage pattern based on counties or cities is similar to that based on zoogeographic divisions. The author suggests that Datian County, though located in central Fujian, should be placed in the western Fujian zoogeographic division.