江西爬行动物多样性及地理区划

采用资料法结合调查数据,对江西省爬行动物物种多样性进行统计,共计4目15科51属90种。游蛇科种类最多,地理分布型中南中国型比例最高。对各保护区的统计结果显示官山爬行动物种类最多,丰富度指数最高,其次为赣江源和九岭山。对保护区面积、最高峰海拔以及温度和降水2个气候因子与物种数和丰富度指数的相关性检验结果显示多数组间无明显关系,但物种数随最高峰海拔增大而增大,呈显著正相关,丰富度指数与降水呈显著正相关。采用聚类分析方法对江西两爬动物进行了分区,结合地形和行政区划特点,将江西省重新划分为3个地理区:中部平原山地区、西北山地区和东南山地区。

Diversity of Reptiles in Jiangxi Province and Their Geographic Zoning

The reptiles diversity in Jiangxi Province was calcultated through document and investigated da-ta.There are 90 species belonging to 4 orders,15 families and 51 genus.Colubridae compose the main part of reptiles and South China type is the most common geographical distribution style in Jiangxi. Guanshan Moun-tain,Ganjiangyuan Mountain,and Jiulingshan Mountain have the largest amount of species and abundance in-dex of reptiles.The correlation between species amount,abundance index and altitude,climate factors and area size was analyzed,the results indicated no clear relationship between them except for that between species a-mount and highest altitude and that between abundance index and precipitation,they were both positively cor-related with each other.The zoogeographic division was studied using cluster analysis method.According to the results,the landform characteristics and administrative division,Jiangxi Province can be divided into three geo-graphic zones:the plain and mountain zone in the middle part which consists of the area around Poyang lake and the Luoxiao Mountain range;the northwest mountain zone, which consists of Jiuling Mountain range, the southwest mountain zone containing the Wuyi Mountain range and the Nanling Mountain zone.