贵州省8个自然保护区爬行动物分布

Study on the Distribution of Reptiles in Eight Natural Reserves in Guizhou Province

报道了贵州省8个自然保护区86种(亚种)爬行动物的分布状况。对贵州省自然保护区爬行动物种数和区系成分与保护区面积、森林面积、年均温、年均降水量、经度、纬度、海拔低点、海拔高点、相对高差等环境因素进行了相关性分析及t-检验。发现在贵州省爬行动物种数除与保护区面积和森林面积呈极显著正相关外,还与经度显著正相关;华中华南区种数与经度显著正相关;华南区种数与纬度显著负相关,与年均降水量显著正相关。本文还探讨了爬行动物的分布特点,包括经度和纬度地理替代。发现由西向东,西南区种的比例逐渐减少,华中区种和华中及华南区种的比例逐渐增加,呈现经度地带性变化。由北向南古北界东洋界广布种的比例逐渐减少、华中及华南区种和华南区种的比例逐渐增加,呈纬度地带性变化。

Eighty six species of reptiles occurred in 8 natural reserves in Guizhou, China were reported. Analysis was made on the geographic replacement, relationship of species richness and fauna with the size of nature reserve, size of forest, annual mean temperature, annual mean rainfall, elevation, longitude and latitude. The species richness was quite remarkably related with the size of reserves and forest, as well as with longitude. The number of species occurring in central and south China fauna was remarkably related with longitude. The number of species occurring in south China fauna was remarkably related with latitude and annual mean waterfall. From west to east in Guizhou province, the species distributing in southwest China decreased gradually, and that of central China fauna dement, and central and south China element increase gradually. From north to south, the proportion of Palearctic and oriental species decreases gradually, and that of central China element and central and south China species increase gradually.