Germination phenology alters species coexistence outcomes

IF 5.3 1区 环境科学与生态学 Q1 ECOLOGY
Jeff Diez, Jen Schlauch, Elysa DuCharme, Jeremy Collings, Sarah Erskine
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引用次数: 0

Abstract

Abstract Image

发芽物候改变物种共存结果
物种特有的物候对气候变化的反应正在重新调整物种相互作用的时间,然而我们并不完全了解这些变化对物种种群动态和群落组成的影响。在这项研究中,我们通过实验操纵了加利福尼亚南部五种一年生植物的发芽时间,并利用成对竞争实验和共存理论来量化物候变化如何影响物种间的相互作用和共存。我们发现,当物候变化给竞争劣势物种带来优势时,可能有助于促进共存,但在其他情况下,则会促进竞争优势物种占据主导地位。较早的发芽一般会提高物种相对于竞争者的表现,但种内和种间相互作用的相对变化会对生态位和适应性差异产生更复杂的影响。物候差异往往会减少许多物种对的稳定生态位差异,并降低总体共存概率。综述。虽然物种间的物候差异通常被认为是一种生态位分区形式,但物候偏移似乎越来越有可能破坏物种共存的稳定性。物候变化对物种共存的净影响将取决于对种内和种间相互作用影响的复杂组合,而这些影响仍然难以预测。
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来源期刊
Journal of Ecology
Journal of Ecology 环境科学-生态学
CiteScore
10.90
自引率
5.50%
发文量
207
审稿时长
3.0 months
期刊介绍: Journal of Ecology publishes original research papers on all aspects of the ecology of plants (including algae), in both aquatic and terrestrial ecosystems. We do not publish papers concerned solely with cultivated plants and agricultural ecosystems. Studies of plant communities, populations or individual species are accepted, as well as studies of the interactions between plants and animals, fungi or bacteria, providing they focus on the ecology of the plants. We aim to bring important work using any ecological approach (including molecular techniques) to a wide international audience and therefore only publish papers with strong and ecological messages that advance our understanding of ecological principles.
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