Plant soil feedback strength in relation to large-scale plant rarity and phylogenetic relatedness

Ecology
Anne KempelEric Allan

Abstract

Understanding why some species are rare while others are common remains a central and fascinating question in ecology. Recently, interactions with soil organisms have been shown to affect local abundances of plant species within communities, however, it is not known whether they might also drive patterns of rarity at large scales. Further, little is known about the specificity of soil-feedback effects, and whether closely related plants share more soil pathogens than more distantly related plants. In a multi-species soil-feedback experiment (using 19 species) we tested whether regionally and locally rare species differed in their response to soil biota. Regional rarity was measured using range size or IUCN status and local rarity by typical abundance within an area. All species were grown on soils trained by a variety of regionally and locally rare and common species, which also varied in their degree of relatedness to the target. We found that, in general, regionally rare species suffered more than twice as much from soil biota than regionally common species. Soil cultured by regionally rare species also had a more negative effect on subsequent plant growth, suggesting they may have also accumulated more pathogens. Local rarit...Continue Reading

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Citations

Nov 20, 2018·The New Phytologist·Jonathan A Bennett, John Klironomos
Jun 1, 2019·Ecology Letters·Kerri M CrawfordJames D Bever
Mar 15, 2020·Annals of the New York Academy of Sciences·Cathy D CollinsMichelle H Hersh
Jul 4, 2020·The New Phytologist·Elizabeth M WandragRichard P Duncan
Apr 7, 2019·Nature Communications·Rutger A WilschutStefan Geisen
Jul 30, 2020·Mycorrhiza·Minna-Maarit Kytöviita, Mauritz Vestberg
Apr 24, 2021·Trends in Ecology & Evolution·Madhav P ThakurT Martijn Bezemer

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