Climatic niche divergence drives patterns of diversification and richness among mammal families.
Climatic niche divergence drives patterns of diversification and richness among mammal families.
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DOI：
10.1038/s41598-018-27068-y
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发表时间：
2018-06-08
影响因子：
4.6
通讯作者：
Baselga A
中科院分区：
文献类型：
--
作者：
Castro-Insua A;Gómez-Rodríguez C;Wiens JJ;Baselga A
进化生物学的一个主要目标是了解为什么进化枝在物种丰富度上存在巨大差异。这一挑战的关键是揭示进化枝之间多样化率（物种形成 - 灭绝）变化的相关性。在这里，我们探讨了 92 个陆生哺乳动物科的多样化率与物种和进化枝的气候生态位之间的关系。我们使用经过时间校准的哺乳动物分子系统发育和 3335 个物种的气候数据。我们表明，哺乳动物科之间净多样化率的巨大差异可以通过生态位差异（59%）和生态位变化率（51%）来解释。多样化率反过来解释了科间物种丰富度的大部分差异（79%）。与预期相反，多样化模式不能用进化枝地理范围的差异来解释，也不能用它们的气候生态位位置（即它们主要是热带还是温带）来解释。总体而言，这些结果表明，通过气候生态位差异形成的物种可能有助于推动大规模的多样化和丰富度模式。我们的结果有助于解释脊椎动物主要进化枝的多样化模式，并表明类似的基本原理可以解释许多陆地进化枝的多样化。
A major goal of evolutionary biology is to understand why clades differ dramatically in species richness. A key to this challenge is to uncover the correlates of variation in diversification rate (speciation – extinction) among clades. Here, we explore the relationship between diversification rates and the climatic niches of species and clades among 92 families of terrestrial mammals. We use a time-calibrated molecular phylogeny of mammals and climatic data from 3335 species. We show that considerable variation in net diversification rates among mammal families is explained by niche divergence (59%) and rates of niche change (51%). Diversification rates in turn explain most variation in species richness among families (79%). Contrary to expectations, patterns of diversification are not explained by differences in geographic range areas of clades, nor by their climatic niche position (i.e. whether they are primarily tropical or temperate). Overall, these results suggest that speciation through climatic niche divergence may help drive large-scale patterns of diversification and richness. Our results help explain diversification patterns in a major clade of vertebrates, and suggest that similar underlying principles may explain the diversification of many terrestrial clades.
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影响因子：
2.9
作者：
Kozak, Kenneth H.;Wiens, John J.
通讯作者：
Wiens, John J.
DOI：
10.1073/pnas.0905137106
发表时间：
2009-11-17
影响因子：
11.1
作者：
Holt, Robert D.
通讯作者：
Holt, Robert D.
影响因子：
8.8
作者：
Fritz, Susanne A.;Bininda-Emonds, Olaf R. P.;Purvis, Andy
通讯作者：
Purvis, Andy
影响因子：
3.3
作者：
Jansa, Sharon A.;Barker, F. Keith;Voss, Robert S.
通讯作者：
Voss, Robert S.
影响因子：
4.8
作者：
Cooney, Christopher R.;Seddon, Nathalie;Tobias, Joseph A.
通讯作者：
Tobias, Joseph A.