Elevational patterns of frog species richness and endemic richness in the Hengduan Mountains, China: geometric constraints, area and climate effects
Elevational patterns of frog species richness and endemic richness in the Hengduan Mountains, China: geometric constraints, area and climate effects
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DOI：
10.1111/j.2006.0906-7590.04802.x
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发表时间：
2006-12-01
期刊：
影响因子：
5.9
通讯作者：
Chen, Jiakuan
中科院分区：
文献类型：
--
作者：
Fu, Cuizhang;Hua, Xia;Chen, Jiakuan
中国，我们研究了横断山区海拔梯度上的蛙类生物多样性。对地方性和非地方性海拔多样性格局分别进行了研究。对这些模式的相互竞争的假设也进行了测试。青蛙、地方性蛙和非地方性蛙的物种丰富度在中等海拔达到峰值。特有物种丰富度的峰值出现在海拔较高的地方，高于总物种丰富度的峰值。特有物种丰富度符合中域模型预测，且与温度呈非线性关系。水和能量是解释非特有物种丰富度海拔格局的最重要变量。一套相互作用的气候和几何因素最好地解释了沿海拔梯度的总物种丰富度格局。我们认为，中域效应是解释海拔丰富度模式的一个重要因素，特别是在地方性较高的地区。
We studied frog biodiversity along an elevational gradient in the Hengduan Mountains, China. Endemic and non-endemic elevational diversity patterns were examined individually. Competing hypotheses were also tested for these patterns. Species richness of total frogs, endemics and non-endemics peaked at mid-elevations. The peak in endemic species richness was at higher elevations than the maxima of total species richness. Endemic species richness followed the mid-domain model predictions, and showed a nonlinear relationship with temperature. Water and energy were the most important variables in explaining elevational patterns of non-endemic species richness. A suite of interacting climatic and geometric factors best explained total species richness patterns along the elevational gradient. We suggest that the mid-domain effect was an important factor to explain elevational richness patterns, especially in regions with high endemism.