Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13924 |
Effects of phenotypic variation on consumer coexistence and prey community structure | |
Shane L. Hogle; Iina Hepolehto; Lasse Ruokolainen; Johannes Cairns; Teppo Hiltunen | |
2021-11-22 | |
发表期刊 | Ecology Letters |
出版年 | 2021 |
英文摘要 | A popular idea in ecology is that trait variation among individuals from the same species may promote the coexistence of competing species. However, theoretical and empirical tests of this idea have yielded inconsistent findings. We manipulated intraspecific trait diversity in a ciliate competing with a nematode for bacterial prey in experimental microcosms. We found that intraspecific trait variation inverted the original competitive hierarchy to favour the consumer with variable traits, ultimately resulting in competitive exclusion. This competitive outcome was driven by foraging traits (size, speed and directionality) that increased the ciliate's fitness ratio and niche overlap with the nematode. The interplay between consumer trait variation and competition resulted in non-additive cascading effects—mediated through prey defence traits—on prey community assembly. Our results suggest that predicting consumer competitive population dynamics and the assembly of prey communities will require understanding the complexities of trait variation within consumer species. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/342378 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Shane L. Hogle,Iina Hepolehto,Lasse Ruokolainen,et al. Effects of phenotypic variation on consumer coexistence and prey community structure[J]. Ecology Letters,2021. |
APA | Shane L. Hogle,Iina Hepolehto,Lasse Ruokolainen,Johannes Cairns,&Teppo Hiltunen.(2021).Effects of phenotypic variation on consumer coexistence and prey community structure.Ecology Letters. |
MLA | Shane L. Hogle,et al."Effects of phenotypic variation on consumer coexistence and prey community structure".Ecology Letters (2021). |
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