Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1098/rspb.2016.0608 |
Plant-soil feedbacks promote negative frequency dependence in the coexistence of two aridland grasses | |
Chung, Y. Anny; Rudgers, Jennifer A. | |
通讯作者 | Chung, Y. Anny |
来源期刊 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
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ISSN | 0962-8452 |
EISSN | 1471-2954 |
出版年 | 2016 |
卷号 | 283期号:1835 |
英文摘要 | Understanding the mechanisms of species coexistence is key to predicting patterns of species diversity. Historically, the ecological paradigm has been that species coexist by partitioning resources: as a species increases in abundance, self-limitation kicks in, because species-specific resources decline. However, determining coexistence mechanisms has been a particular puzzle for sedentary organisms with high overlap in their resource requirements, such as plants. Recent evidence suggests that plant-associated microbes could generate the stabilizing self-limitation (negative frequency dependence) that is required for species coexistence. Here, we test the key assumption that plant microbe feedbacks cause such self-limitation. We used competition experiments and modelling to evaluate how two common groups of soil microbes (rhizospheric microbes and biological soil crusts) influenced the self-limitation of two competing desert grass species. Negative feedbacks between the dominant plant competitor and its rhizospheric microbes magnified self-limitation, whereas beneficial interactions between both plant species and biological soil crusts partly counteracted this stabilizing effect. Plant microbe interactions have received relatively little attention as drivers of vegetation dynamics in dry land ecosystems. Our results suggest that microbial mechanisms can contribute to patterns of plant coexistence in arid grasslands. |
英文关键词 | plant-soil feedback competition and coexistence stabilizing mechanisms negative frequency dependence semiarid grassland biological soil crust |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000382430800007 |
WOS关键词 | ARBUSCULAR-MYCORRHIZAL FUNGI ; SEPTATE ROOT ENDOPHYTES ; 2-SPECIES COMPETITION ; SPECIES COEXISTENCE ; POPULATION-DYNAMICS ; SEMIARID GRASSLANDS ; DESERT GRASSLAND ; DIVERSITY ; COMMUNITIES ; METAANALYSIS |
WOS类目 | Biology ; Ecology ; Evolutionary Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195755 |
作者单位 | Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA |
推荐引用方式 GB/T 7714 | Chung, Y. Anny,Rudgers, Jennifer A.. Plant-soil feedbacks promote negative frequency dependence in the coexistence of two aridland grasses[J],2016,283(1835). |
APA | Chung, Y. Anny,&Rudgers, Jennifer A..(2016).Plant-soil feedbacks promote negative frequency dependence in the coexistence of two aridland grasses.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,283(1835). |
MLA | Chung, Y. Anny,et al."Plant-soil feedbacks promote negative frequency dependence in the coexistence of two aridland grasses".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 283.1835(2016). |
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