The comparative biogeography of Philippine geckos challenges predictions from a paradigm of climate‐driven vicariant diversification across an island archipelago

The comparative biogeography of Philippine geckos challenges predictions from a paradigm of climate‐driven vicariant diversification across an island archipelago
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菲律宾壁虎的比较生物地理学挑战了气候驱动的整个岛屿群岛的替代多样化范式的预测

DOI:
10.1111/evo.13754
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发表时间:
2019
期刊:
影响因子:
3.3
通讯作者:
Brown, Rafe M.
Brown, Rafe M.
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Oaks, Jamie R.;Siler, Cameron D.;Brown, Rafe M.

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生物地理学的一个主要目标是了解气候变化等大规模环境过程如何影响多样性。一个经常被提及但很少被检验的过程是“物种泵”模型,在该模型中,气候引起的栖息地连接周期振荡驱动了反复的共种化。例如,在过去的300万年里,由于与冰川旋回相关的海平面变化,菲律宾群岛的景观一再合并和破碎。这种反复的气候驱动的变异被认为是共同分布在岛屿上的进化谱系的物种形成模型。这个模型预测的物种形成时间暂时集中在间冰期海平面上升使岛屿破碎的时间周围。为了验证这一预测,我们收集了16对岛壁虎种群的比较基因组数据。我们在全似然,贝叶斯模型选择框架中分析这些数据,以测试对之间的共享发散时间。我们的研究结果对物种泵模型预测提供了支持,支持另一种解释,即每对壁虎种群独立分化。这些结果表明,气候驱动的景观破碎化的反复发作并不是菲律宾群岛壁虎类蜥蜴物种形成的重要机制。
A primary goal of biogeography is to understand how large-scale environmental processes, like climate change, affect diversification. One often-invoked but seldom tested process is the “species-pump” model, in which repeated bouts of cospeciation are driven by oscillating climate-induced habitat connectivity cycles. For example, over the past three million years, the landscape of the Philippine Islands has repeatedly coalesced and fragmented due to sea-level changes associated with glacial cycles. This repeated climate-driven vicariance has been proposed as a model of speciation across evolutionary lineages codistributed throughout the islands. This model predicts speciation times that are temporally clustered around the times when interglacial rises in sea level fragmented the islands. To test this prediction, we collected comparative genomic data from 16 pairs of insular gecko populations. We analyze these data in a full-likelihood, Bayesian model-choice framework to test for shared divergence times among the pairs. Our results provide support against the species-pump model prediction in favor of an alternative interpretation, namely that each pair of gecko populations diverged independently. These results suggest the repeated bouts of climate-driven landscape fragmentation have not been an important mechanism of speciation for gekkonid lizards across the Philippine Archipelago.
分层贝叶斯分析揭示了下加利福尼亚州哺乳动物和爬行动物的两波多样化浪潮
DOI: 10.1098/rsbl.2007.0368
发表时间: 2007
期刊: Biology Letters
影响因子: 3.3
作者:
A. Leaché;S. Crews;M. Hickerson
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DOI: 10.1111/evo.12523
发表时间: 2014-12-01
期刊: EVOLUTION
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DOI: 10.1093/sysbio/syy063
发表时间: 2019-05-01
期刊: Systematic biology
影响因子: 6.5
作者:
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DOI: --
发表时间: 1937
期刊:
影响因子: --
作者:
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来自菲律宾中部锡布延岛的新壁虎
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
Rafe M. Brown;Cameron D. Siler;C. Oliveros;A. Diesmos;A. Alcala
通讯作者: A. Alcala