Stress relief may promote the evolution of greater phenotypic plasticity in exotic invasive species: a hypothesis.
Stress relief may promote the evolution of greater phenotypic plasticity in exotic invasive species: a hypothesis.
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压力缓解可能促进外来入侵物种更大表型可塑性的进化：一个假设
DOI：
10.1002/ece3.1424
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发表时间：
2015-03
影响因子：
2.6
通讯作者：
Peng, Shao L.
中科院分区：
文献类型：
--
作者：
Huang, Qiao Q.;Pan, Xiao Y.;Fan, Zhi W.;Peng, Shao L.
关键词：
入侵生态学家经常发现，外来入侵者的进化比来自本土的同种种群更具可塑性。然而，一个悬而未决的问题是，为什么一些外来入侵者甚至可以进化成更具塑料性，因为塑料可能会有成本。对塑性的利益和成本的调查表明，应力可能会限制塑性的表达（从而减少塑性的利益），并加剧塑性的成本（尽管这种可能性可能并不普遍适用）。因此，适应性可塑性的进化更有可能在压力环境中受到限制。引入新范围后，外来物种可能会经历更有利的生长条件（例如，因为从天敌释放）。因此，我们假设，任何因素缓解压力的范围内引入可能会促进外来入侵者进化增加适应性可塑性，降低成本，增加可塑性的好处。经验证据在很大程度上与这一假设一致。这一假设有助于我们理解为什么入侵物种往往被发现在一个子集的环境更具竞争力。对这一假设的检验不仅可以帮助我们理解是什么导致了某些外来入侵者的可塑性增强，而且还可以告诉我们，在一般的压力环境中，成本（除非非常小）是否更有可能抑制适应性可塑性的进化。
Invasion ecologists have often found that exotic invaders evolve to be more plastic than conspecific populations from their native range. However, an open question is why some exotic invaders can even evolve to be more plastic given that there may be costs to being plastic. Investigation into the benefits and costs of plasticity suggests that stress may constrain the expression of plasticity (thereby reducing the benefits of plasticity) and exacerbate the costs of plasticity (although this possibility might not be generally applicable). Therefore, evolution of adaptive plasticity is more likely to be constrained in stressful environments. Upon introduction to a new range, exotic species may experience more favorable growth conditions (e.g., because of release from natural enemies). Therefore, we hypothesize that any factors mitigating stress in the introduced range may promote exotic invaders to evolve increased adaptive plasticity by reducing the costs and increasing the benefits of plasticity. Empirical evidence is largely consistent with this hypothesis. This hypothesis contributes to our understanding of why invasive species are often found to be more competitive in a subset of environments. Tests of this hypothesis may not only help us understand what caused increased plasticity in some exotic invaders, but could also tell us if costs (unless very small) are more likely to inhibit the evolution of adaptive plasticity in stressful environments in general.
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DOI：
10.1196/annals.1438.008
发表时间：
2008-01-01
期刊：
YEAR IN EVOLUTIONARY BIOLOGY 2008
影响因子：
--
作者：
Callahan, Hilary S.;Maughan, Heather;Steiner, Ulrich K.
通讯作者：
Steiner, Ulrich K.
影响因子：
56.9
作者：
Callaway, RM;Aschehoug, ET
通讯作者：
Aschehoug, ET
影响因子：
64.8
作者：
Mitchell, CE;Power, AG
通讯作者：
Power, AG
影响因子：
1.9
作者：
Alpert, P;Simms, EL
通讯作者：
Simms, EL
影响因子：
56.9
作者：
Agrawal, AA
通讯作者：
Agrawal, AA