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Rapid changes in seed dispersal traits may modify plant responses to global change.
AoB Plants ( IF 2.9 ) Pub Date : 2019-06-15 , DOI: 10.1093/aobpla/plz020
Jeremy S Johnson 1, 2 , Robert Stephen Cantrell 3 , Chris Cosner 3 , Florian Hartig 4 , Alan Hastings 5 , Haldre S Rogers 6 , Eugene W Schupp 7 , Katriona Shea 8 , Brittany J Teller 8 , Xiao Yu 3 , Damaris Zurell 9, 10 , Gesine Pufal 11
Affiliation  

When climatic or environmental conditions change, plant populations must either adapt to these new conditions, or track their niche via seed dispersal. Adaptation of plants to different abiotic environments has mostly been discussed with respect to physiological and demographic parameters that allow local persistence. However, rapid modifications in response to changing environmental conditions can also affect seed dispersal, both via plant traits and via their dispersal agents. Studying such changes empirically is challenging, due to the high variability in dispersal success, resulting from environmental heterogeneity, and substantial phenotypic variability of dispersal-related traits of seeds and their dispersers. The exact mechanisms that drive rapid changes are often not well understood, but the ecological implications of these processes are essential determinants of dispersal success, and deserve more attention from ecologists, especially in the context of adaptation to global change. We outline the evidence for rapid changes in seed dispersal traits by discussing variability due to plasticity or genetics broadly, and describe the specific traits and biological systems in which variability in dispersal is being studied, before discussing some of the potential underlying mechanisms. We then address future research needs and propose a simulation model that incorporates phenotypic plasticity in seed dispersal. We close with a call to action and encourage ecologists and biologist to embrace the challenge of better understanding rapid changes in seed dispersal and their consequences for the reaction of plant populations to global change.

中文翻译:

种子传播性状的快速变化可能会改变植物对全球变化的反应。

当气候或环境条件发生变化时,植物种群必须适应这些新条件,或者通过种子传播追踪其生态位。关于允许局部持久性的生理学和人口统计学参数,大多数讨论了植物对不同非生物环境的适应性。然而,响应于变化的环境条件而进行的快速修饰也会通过植物性状及其分散剂影响种子的分散。由于环境异质性以及种子及其分散剂的散布相关性状的显着表型变异,实证研究这种变化具有挑战性,这是由于散布成功的高度可变性所致。导致快速变化的确切机制通常没有得到很好的理解,但是这些过程的生态影响是成功分散的重要决定因素,应引起生态学家的更多关注,尤其是在适应全球变化的情况下。通过广泛讨论可塑性或遗传学引起的变异性,我们概述了种子传播性状快速变化的证据,并在讨论某些潜在的潜在机制之前,描述了正在研究传播变异性的特定性状和生物学系统。然后,我们解决了未来的研究需求,并提出了一种在种子传播中结合表型可塑性的模拟模型。
更新日期:2019-11-01
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