Dormancy in Metacommunities

Dormancy in Metacommunities
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元社区中的休眠

DOI:
--
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发表时间:
2019
影响因子:
2.9
通讯作者:
J. Lennon
J. Lennon
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Nathan I. Wisnoski;M. Leibold;J. Lennon

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虽然后居生态学提高了我们的理解如何分散影响群落结构和动态的空间尺度,它还没有充分考虑休眠。休眠是一种可逆的代谢活动减少的状态,它使代谢活动在一定时间内得以分散。休眠也是一个元性水平的过程,因为它可以与空间扩散协变,并影响跨空间尺度的多样性。我们开发了一个框架,整合分散和休眠,专注于他们所表现出的协变,预测休眠如何修改的重要性,物种的相互作用,分散,和历史偶然性的metacoptimities。我们使用实证和建模的方法来证明这个框架的效用。我们研究了案例研究的微型甲壳类动物在短暂的池塘,休眠的基础metacompatiity动态,并确定限制凤梨居住的无脊椎动物的扩散和休眠策略。使用模拟,我们发现,休眠可以改变经典的metacperity模式的多样性的方式,依赖于分散休眠协变和时空环境的变化。我们建议,休眠也可能促进进化介导的优先级效应,如果当地适应种子银行防止殖民化的传播有限的物种。最后,我们提出了可测试的预测休眠的影响,其中一些可能会从根本上改变我们的理解metacompatibility生态。
Although metacommunity ecology has improved our understanding of how dispersal affects community structure and dynamics across spatial scales, it has yet to adequately account for dormancy. Dormancy is a reversible state of reduced metabolic activity that enables temporal dispersal within the metacommunity. Dormancy is also a metacommunity-level process because it can covary with spatial dispersal and affect diversity across spatial scales. We develop a framework to integrate dispersal and dormancy, focusing on the covariation they exhibit, to predict how dormancy modifies the importance of species interactions, dispersal, and historical contingencies in metacommunities. We used empirical and modeling approaches to demonstrate the utility of this framework. We examined case studies of microcrustaceans in ephemeral ponds, where dormancy underlies metacommunity dynamics, and identified constraints on the dispersal and dormancy strategies of bromeliad-dwelling invertebrates. Using simulations, we showed that dormancy can alter classic metacommunity patterns of diversity in ways that depend on dispersal-dormancy covariation and spatiotemporal environmental variability. We propose that dormancy may also facilitate evolution-mediated priority effects if locally adapted seed banks prevent colonization by more dispersal-limited species. Last, we present testable predictions for the implications of dormancy in metacommunities, some of which may fundamentally alter our understanding of metacommunity ecology.
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