Shrub species identity modulates plant–arthropod diversity coupling across a dryland aridity gradient

IF 6.3 1区 环境科学与生态学 Q1 ECOLOGY
Rentao Liu, Zhixia Guo, Josep Peñuelas, Marcelo Sternberg
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引用次数: 0

Abstract

灌木物种身份调节植物-节肢动物多样性在旱地干旱梯度上的耦合
灌木是旱地重要的生态系统工程师,但其对生物多样性的影响因物种特性和气候胁迫的不同而有正有负。在了解灌木物种身份如何调节植物-节肢动物生物多样性及其在干旱梯度上的耦合方面,仍然存在一个关键的知识缺口。为了解决这一差距,我们研究了原生油蒿、人工柠条和邻近开放空间形成的微生境中草本植物和地面节肢动物的多样性以及土壤特性。本研究沿着中国北方明显的干旱梯度连续三年进行。结果表明,在高干旱度条件下,柠条灌木对草本植物多样性的抑制作用为中性,而油麻灌木对草本植物多样性的抑制作用随着干旱度的增加而增强。相比之下,两种灌木物种在整个干旱梯度上都不影响节肢动物的多样性。此外,在三个微生境中,植物-节肢动物的多样性耦合一致密切。在干旱梯度上,柠条灌丛保持稳定的高耦合,而油料灌丛保持低耦合,与开放空间相当。其中,耦合沿干旱减小,显示出一个阈值(~270 mm),低于该阈值,耦合减弱。合成。总之,这些结果表明,灌木物种身份是植物和节肢动物多样性及其在干旱梯度上的耦合的决定性调节因子。柠条保持稳定的高耦合策略,而油松在干旱化过程中采取低耦合策略。这些发现为将灌木特性纳入旱地生态系统气候适应性恢复策略提供了机制基础。
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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 We do not publish papers concerned solely with cultivated plants and agricultural ecosystems.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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