Species-Level Versus Community-Level Responses to Microhabitat Type and Diversity in an Experimental Plant Community

Soil heterogeneity has been theoretically predicted to promote plant performance, but empirical evidence is often mixed. By focusing on a gradient of microhabitats (single, three and six types of microhabitats), we tested the hypothesis that increasing the number of microhabitats promotes the divers...

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Main Authors: Bing Hu, Zhu-Wen Xu, Wei Xue, Fei-Hai Yu
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/14/10/803
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author Bing Hu
Zhu-Wen Xu
Wei Xue
Fei-Hai Yu
author_facet Bing Hu
Zhu-Wen Xu
Wei Xue
Fei-Hai Yu
author_sort Bing Hu
collection DOAJ
description Soil heterogeneity has been theoretically predicted to promote plant performance, but empirical evidence is often mixed. By focusing on a gradient of microhabitats (single, three and six types of microhabitats), we tested the hypothesis that increasing the number of microhabitats promotes the diversity and productivity of plant communities. We created different types of microhabitats by adding different forms of nitrogen (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi>NH</mi></mrow><mn>4</mn><mo>+</mo></msubsup></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi>NO</mi></mrow><mn>3</mn><mo>−</mo></msubsup></mrow></semantics></math></inline-formula> and glycine) or combinations of these nitrogen in an even or patchy way. Community biomass, but not evenness, differed in different types of single-microhabitat. Increasing the number of microhabitat types did not alter community growth or evenness, but it increased the difference in the relative abundance of plant species within the community. These results suggest that microhabitat diversity can influence plant competitive hierarchies, and that this effect can lead to changed community growth, but may not be decisive for plant evenness.
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spelling doaj.art-e01b72014ec94e2ea53d62e0420ecf212023-11-23T23:47:56ZengMDPI AGDiversity1424-28182022-09-01141080310.3390/d14100803Species-Level Versus Community-Level Responses to Microhabitat Type and Diversity in an Experimental Plant CommunityBing Hu0Zhu-Wen Xu1Wei Xue2Fei-Hai Yu3Key Lab Grassland Ecology, School of Ecology & Environment, Inner Mongolia University, Hohhot 010021, ChinaKey Lab Grassland Ecology, School of Ecology & Environment, Inner Mongolia University, Hohhot 010021, ChinaInstitute of Wetland Ecology & Clone Ecology/Zhejiang Provincial Key Laboratory of Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, ChinaInstitute of Wetland Ecology & Clone Ecology/Zhejiang Provincial Key Laboratory of Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, ChinaSoil heterogeneity has been theoretically predicted to promote plant performance, but empirical evidence is often mixed. By focusing on a gradient of microhabitats (single, three and six types of microhabitats), we tested the hypothesis that increasing the number of microhabitats promotes the diversity and productivity of plant communities. We created different types of microhabitats by adding different forms of nitrogen (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi>NH</mi></mrow><mn>4</mn><mo>+</mo></msubsup></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mrow><mi>NO</mi></mrow><mn>3</mn><mo>−</mo></msubsup></mrow></semantics></math></inline-formula> and glycine) or combinations of these nitrogen in an even or patchy way. Community biomass, but not evenness, differed in different types of single-microhabitat. Increasing the number of microhabitat types did not alter community growth or evenness, but it increased the difference in the relative abundance of plant species within the community. These results suggest that microhabitat diversity can influence plant competitive hierarchies, and that this effect can lead to changed community growth, but may not be decisive for plant evenness.https://www.mdpi.com/1424-2818/14/10/803community evennessproductivitymulti-microhabitatnitrogen formsplant diversitysoil heterogeneity
spellingShingle Bing Hu
Zhu-Wen Xu
Wei Xue
Fei-Hai Yu
Species-Level Versus Community-Level Responses to Microhabitat Type and Diversity in an Experimental Plant Community
Diversity
community evenness
productivity
multi-microhabitat
nitrogen forms
plant diversity
soil heterogeneity
title Species-Level Versus Community-Level Responses to Microhabitat Type and Diversity in an Experimental Plant Community
title_full Species-Level Versus Community-Level Responses to Microhabitat Type and Diversity in an Experimental Plant Community
title_fullStr Species-Level Versus Community-Level Responses to Microhabitat Type and Diversity in an Experimental Plant Community
title_full_unstemmed Species-Level Versus Community-Level Responses to Microhabitat Type and Diversity in an Experimental Plant Community
title_short Species-Level Versus Community-Level Responses to Microhabitat Type and Diversity in an Experimental Plant Community
title_sort species level versus community level responses to microhabitat type and diversity in an experimental plant community
topic community evenness
productivity
multi-microhabitat
nitrogen forms
plant diversity
soil heterogeneity
url https://www.mdpi.com/1424-2818/14/10/803
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AT feihaiyu specieslevelversuscommunitylevelresponsestomicrohabitattypeanddiversityinanexperimentalplantcommunity