Ancient geological dynamics impact neutral biodiversity accumulation and are detectable in phylogenetic reconstructions
Ancient geological dynamics impact neutral biodiversity accumulation and are detectable in phylogenetic reconstructions
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DOI：
10.1111/geb.13326
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发表时间：
2021-06-05
影响因子：
6.4
通讯作者：
Travis，Justin M. J.
中科院分区：
文献类型：
--
作者：
Herrera-Alsina，Leonel;Algar，Adam C.;Travis，Justin M. J.
陆块不断受到构造活动的改造，陆块的分裂和碰撞被认为产生或抑制了生态机会，改变了物种形成、扩散和灭绝的速度。然而，过去地质事件的特征在多大程度上保留在现代生物多样性模式中，或者被最近的生态动态所抹杀，仍然没有得到解决。我们的目标是识别指纹的不同情况下的地质活动的系统发育树和地理范围大小distribution.LocationGlobal.Time periodGeological time.Major taxa studyedTheoretical predictions for any taxa.MethodsWe进行了空间上明确的模拟范围的演变，物种形成和灭绝的三个不同的地质情况下，在他们的地质历史不同的中性模型。我们设置了一个限制的数量的人口，当地可以共存，其中，沿着与陆地的地理边界，影响的范围expansion.ResultsOur的结果表明，类似的大小，年龄和生态限制的区域将不同的丰富性和宏观进化模式的基础上的地质历史的陆地解体和碰撞，即使在没有物种的生态差异，即中性。当陆块碰撞时，区域丰富度更高，谱系表现出更相似的物种形成率和系统发育树比地质静止的情况下更平衡。严格的本地限制共存产生较低的区域多样性，但在一般情况下不影响我们的能力，区分地质scenaries.Main conclusionsThese研究结果提供了另一种解释存在的一些热点的多样性在高地质活动的地区。虽然共存物种数量的限制在很大程度上影响了区域多样性，但其对系统发育模式的贡献低于人均物种形成和灭绝率的变化。重要的是，这些研究结果表明，推断过去的地质历史的分布和范围的大小。
AimLandmasses have been continuously modified by tectonic activity, the breakup and collision of landmasses is thought to have generated or suppressed ecological opportunities, altering the rates of speciation, dispersal and extinction. However, the extent to which the signatures of past geological events are retained in modern biodiversity patterns—or obliterated by recent ecological dynamics—remains unresolved. We aim to identify the fingerprint of different scenarios of geological activity on phylogenetic trees and geographic range size distributions.LocationGlobal.Time periodGeological time.Major taxa studiedTheoretical predictions for any taxa.MethodsWe conducted spatially explicit simulations under a neutral model of range evolution, speciation and extinction for three different geological scenarios that differed in their geological histories. We set a limit on the number of populations that locally can coexist, which, along with the geographic boundaries of landmasses, influences the rate of range expansion.ResultsOur results demonstrate regions of similar size, age and ecological limits will differ in richness and macroevolutionary patterns based solely on the geological history of landmass breakup and collision even in the absence of species’ ecological differences, that is, neutrality. When landmasses collide, regional richness is higher, lineages exhibit more similar rates of speciation and phylogenetic trees are more balanced than in the geologically static scenario. Stringent local limits to coexistence yield lower regional diversity but in general do not affect our ability to distinguish geological scenarios.Main conclusionsThese findings provide an alternative explanation for existence of some hotspots of diversity in areas of high geological activity. Although a limit on the number of coexisting species largely influences regional diversity, its contribution to phylogenetic patterns is lower than variation in per‐capita rates of speciation and extirpation. Importantly, these findings demonstrate the potential for inferring past geological history from distributions of phylogenies and range sizes.