Plant-soil feedback and the maintenance of diversity in Mediterranean-climate shrublands
Plant-soil feedback and the maintenance of diversity in Mediterranean-climate shrublands
复制标题
植物-土壤反馈与地中海气候灌丛多样性的维持
DOI：
10.1126/science.aai8291
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发表时间：
2017-01-13
期刊：
影响因子：
56.9
通讯作者：
Laliberte, Etienne
中科院分区：
文献类型：
--
作者：
Teste, Francois P.;Kardol, Paul;Laliberte, Etienne
Soil biota influence plant performance through plant-soil feedback, but it is unclear whether the strength of such feedback depends on plant traits and whether plant-soil feedback drives local plant diversity. We grew 16 co-occurring plant species with contrasting nutrient-acquisition strategies from hyperdiverse Australian shrublands and exposed them to soil biota from under their own or other plant species. Plant responses to soil biota varied according to their nutrient-acquisition strategy, including positive feedback for ectomycorrhizal plants and negative feedback for nitrogen-fixing and nonmycorrhizal plants. Simulations revealed that such strategy-dependent feedback is sufficient to maintain the high taxonomic and functional diversity characterizing these Mediterranean-climate shrublands. Our study identifies nutrient-acquisition strategy as a key trait explaining how different plant responses to soil biota promote local plant diversity.
