Adding more ecology into species delimitation:: Ecological niche models and phylogeography help define cryptic species in the black salamander (Aneides flavipunctatus)
Adding more ecology into species delimitation:: Ecological niche models and phylogeography help define cryptic species in the black salamander (Aneides flavipunctatus)
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DOI：
10.1080/10635150701703063
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发表时间：
2007-12-01
影响因子：
6.5
通讯作者：
Apodaca, Joseph J.
中科院分区：
文献类型：
--
作者：
Rissler, Leslie J.;Apodaca, Joseph J.
能够有效和准确地界定物种是系统学最基本和最重要的方面之一，因为物种是地理学，生态学和保护的基本分析单位。我们提出了一个理论基础和方法相结合的生态位建模，空间上明确的环境数据分析，并在物种界定的遗传学，我们使用我们的方法在一个实证的例子，重点是Aneides flavipunctatus，黑蝾螈（尾：Plethodontidae），在加州。我们评估了种群间遗传、环境和地理距离之间的关系。我们使用公共数据库中的11个气候变量和点位置数据来创建生态位模型。潜在的接触区之间的parapatric谱系的适用性也进行了评估，使用生态位建模的数据。部分线粒体基因组的系统发育分析揭示了形态学上隐藏的线粒体谱系在这个物种。此外，我们发现，模式的遗传分化与生态位的分歧。我们的工作表明，使用空间分析的环境数据和遗传学物种划界的易用性和实用性，特别是对于显示细尺度特有性和神秘物种的群体。
Being able to efficiently and accurately delimit species is one of the most basic and important aspects of systematics because species are the fundamental unit of analysis in biogeography, ecology, and conservation. We present a rationale and approach for combining ecological niche modeling, spatially explicit analyses of environmental data, and phylogenetics in species delimitation, and we use our methodology in an empirical example focusing on Aneides flavipunctatus, the black salamander (Caudata: Plethodontidae), in California. We assess the relationships between genetic, environmental, and geographic distance among populations. We use 11 climatic variables and point locality data from public databases to create ecological niche models. The suitability of potential contact zones between parapatric lineages is also assessed using the data from ecological niche modeling. Phylogenetic analyses of portions of the mitochondrial genome reveal morphologically cryptic mitochondrial lineages in this species. In addition, we find that patterns of genetic divergence are strongly associated with divergence in the ecological niche. Our work demonstrates the ease and utility of using spatial analyses of environmental data and phylogenetics in species delimitation, especially for groups displaying fine-scaled endemism and cryptic species.