The relative contributions of climate, soil, diversity and interactions to leaf trait variation and spectrum of invasive Solidago canadensis.

IF 2.2 2区 环境科学与生态学 Q1 Agricultural and Biological Sciences BMC Ecology Pub Date : 2019-06-15 DOI:10.1186/s12898-019-0240-1
Li-Jia Dong, Wei-Ming He
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引用次数: 16

Abstract

Background: Invasive plants commonly occupy diverse habitats and thus must adapt to changing environmental pressures through altering their traits and economics spectra, and addressing these patterns and their drivers has an importantly ecological and/or evolutionary significance. However, few studies have considered the role of multiple biotic and abiotic factors in shaping trait variation and spectra. In this study, we determined seven leaf traits of 66 Solidago canadensis populations, and quantified the relative contributions of climate, soil properties, native plant diversity, and S. canadensis-community interactions (in total 16 factors) to leaf trait variation and spectrum with multimodel inference.

Results: Overall, the seven leaf traits had high phenotypic variation, and this variation was highest for leaf dry matter content and lowest for leaf carbon concentration. The per capita contribution of climate to the mean leaf trait variation was highest (7.5%), followed by soil properties (6.2%), S. canadensis-community interactions (6.1%), and native plant diversity (5.4%); the dominant factors underlying trait variation varied with leaf traits. Leaf production potential was negatively associated with leaf stress-tolerance potential, and the relative contributions to this trade-off followed in order: native plant diversity (7.7%), climate (6.9%), S. canadensis-community interactions (6.2%), and soil properties (5.6%). Climate, diversity, soil, and interactions had positive, neutral or negative effects.

Conclusions: Climate, soil, diversity, and interactions contribute differentially to the leaf trait variation and economics spectrum of S. canadensis, and their relative importance and directions depend on plant functional traits.

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气候、土壤、多样性和相互作用对入侵加拿大一枝黄花叶片性状变异和光谱的相对贡献
背景:入侵植物通常占据多样化的栖息地,因此必须通过改变其性状和经济光谱来适应不断变化的环境压力,研究这些模式及其驱动因素具有重要的生态和/或进化意义。然而,很少有研究考虑到多种生物和非生物因素在性状变异和光谱形成中的作用。本研究通过对66个加拿大一枝黄花居群的7个叶片性状的测定,通过多模型推理,量化了气候、土壤性质、本土植物多样性和群落间相互作用(共16个因子)对叶片性状变异和光谱的相对贡献。结果:总体而言,7个叶片性状存在较大的表型变异,其中干物质含量变异最大,碳浓度变异最小。气候对平均叶片性状变异的人均贡献最大(7.5%),其次是土壤性质(6.2%)、加拿大南芥-群落相互作用(6.1%)和本地植物多样性(5.4%);性状变异的主导因子因叶片性状而异。叶片生产潜力与叶片抗逆性潜力呈负相关,对这种权衡的相对贡献依次为:本地植物多样性(7.7%)、气候(6.9%)、加拿大南芥-群落相互作用(6.2%)和土壤性质(5.6%)。气候、多样性、土壤和相互作用有积极、中性或消极的影响。结论:气候、土壤、多样性和相互作用对加拿大草叶片性状变异和经济谱的影响存在差异,其相对重要性和方向取决于植物功能性状。
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来源期刊
BMC Ecology
BMC Ecology ECOLOGY-
CiteScore
5.80
自引率
4.50%
发文量
0
审稿时长
22 weeks
期刊介绍: BMC Ecology is an open access, peer-reviewed journal that considers articles on environmental, behavioral and population ecology as well as biodiversity of plants, animals and microbes.
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