Plant-soil feedbacks as drivers of succession: evidence from remnant and restored tallgrass prairies
Plant-soil feedbacks as drivers of succession: evidence from remnant and restored tallgrass prairies
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DOI：
10.1890/es14-00480.1
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发表时间：
2015-09-01
期刊：
影响因子：
2.7
通讯作者：
Bever, James D.
中科院分区：
文献类型：
--
作者：
Bauer, Jonathan T.;Mack, Keenan M. L.;Bever, James D.
植物-土壤反馈可以促进植物物种的共存，并可以预测群落内植物物种的丰富度。在这里，我们测试，如果植物土壤反馈作为驱动程序的次生演替。我们发现，植物物种所经历的反馈强度与该物种的演替阶段呈正相关，表明植物-土壤反馈可以促进演替过程中植物物种丰度的变化。我们没有观察到反馈的强度和植物物种丰富度之间的显着关系，在我们的研究地点，但反馈和演替阶段的正相关关系会产生反馈和植物物种丰富度之间的正相关关系在平衡的社区。这一结果是支持空间明确的模拟模型，表明植物-土壤反馈，以确定物种丰富度随时间的变化和不断增加的强度之间的关系，在演替过程中的反馈和植物物种丰富度的潜力。
Plant-soil feedbacks can contribute to the coexistence of plant species and may predict the abundance of plant species within communities. Here, we test if plant-soil feedbacks act as drivers of secondary succession. We found that the strength of feedback experienced by a plant species was positively correlated with that species' successional stage, indicating that plant-soil feedbacks can contribute to shifts in plant species abundance during succession. We did not observe a significant relationship between strength of feedback and plant species abundance at our study sites, but the positive relationship of feedback and successional stage would generate positive relationships between feedback and the abundance of plant species in communities at equilibrium. This result is supported by spatially explicit simulation models that demonstrate the potential for plant-soil feedbacks to determine changes in species abundance over time and the increasing strength of the relationship between feedback and plant species abundance during succession.