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Characteristics and driving mechanisms of species beta diversity in desert plant communities

Species dissimilarity (beta diversity) primarily reflects the spatio–temporal changes in the species composition of a plant community. The correlations between β diversity and environmental factors and spatial distance can be used to explain the magnitudes of environmental filtering and dispersal. H...

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Detalles Bibliográficos
Autores principales: Jiang, Lamei, Lv, Guanghui, Gong, Yanming, Li, Yan, Wang, Hengfang, Wu, Deyan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7799812/
https://www.ncbi.nlm.nih.gov/pubmed/33428688
http://dx.doi.org/10.1371/journal.pone.0245249
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author Jiang, Lamei
Lv, Guanghui
Gong, Yanming
Li, Yan
Wang, Hengfang
Wu, Deyan
author_facet Jiang, Lamei
Lv, Guanghui
Gong, Yanming
Li, Yan
Wang, Hengfang
Wu, Deyan
author_sort Jiang, Lamei
collection PubMed
description Species dissimilarity (beta diversity) primarily reflects the spatio–temporal changes in the species composition of a plant community. The correlations between β diversity and environmental factors and spatial distance can be used to explain the magnitudes of environmental filtering and dispersal. However, little is known about the relative roles and importance of neutral and niche-related factors in the assemblage of plant communities with different life forms in deserts. We found that in desert ecosystems, the β diversity of herbaceous plants was the highest, followed by that of shrubs and trees. The changes in the β diversity of herbs and shrubs had stronger correlations with the environment, indicating that community aggregation was strongly affected by niche processes. The soil water content and salt content were the key environmental factors affecting species distributions of the herb and shrub layers, respectively. Spatial distance explained a larger amount of the variation in tree composition, indicating that dispersal limitation was the main factor affecting the construction of the tree layer community. The results suggest that different life forms may determine the association between organisms and the environment. These findings suggest that the spatial patterns of plant community species in the Ebinur Lake desert ecosystem are the result of the combined effects of environmental filtering and dispersal limitation.
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spelling pubmed-77998122021-01-22 Characteristics and driving mechanisms of species beta diversity in desert plant communities Jiang, Lamei Lv, Guanghui Gong, Yanming Li, Yan Wang, Hengfang Wu, Deyan PLoS One Research Article Species dissimilarity (beta diversity) primarily reflects the spatio–temporal changes in the species composition of a plant community. The correlations between β diversity and environmental factors and spatial distance can be used to explain the magnitudes of environmental filtering and dispersal. However, little is known about the relative roles and importance of neutral and niche-related factors in the assemblage of plant communities with different life forms in deserts. We found that in desert ecosystems, the β diversity of herbaceous plants was the highest, followed by that of shrubs and trees. The changes in the β diversity of herbs and shrubs had stronger correlations with the environment, indicating that community aggregation was strongly affected by niche processes. The soil water content and salt content were the key environmental factors affecting species distributions of the herb and shrub layers, respectively. Spatial distance explained a larger amount of the variation in tree composition, indicating that dispersal limitation was the main factor affecting the construction of the tree layer community. The results suggest that different life forms may determine the association between organisms and the environment. These findings suggest that the spatial patterns of plant community species in the Ebinur Lake desert ecosystem are the result of the combined effects of environmental filtering and dispersal limitation. Public Library of Science 2021-01-11 /pmc/articles/PMC7799812/ /pubmed/33428688 http://dx.doi.org/10.1371/journal.pone.0245249 Text en © 2021 Jiang et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Jiang, Lamei
Lv, Guanghui
Gong, Yanming
Li, Yan
Wang, Hengfang
Wu, Deyan
Characteristics and driving mechanisms of species beta diversity in desert plant communities
title Characteristics and driving mechanisms of species beta diversity in desert plant communities
title_full Characteristics and driving mechanisms of species beta diversity in desert plant communities
title_fullStr Characteristics and driving mechanisms of species beta diversity in desert plant communities
title_full_unstemmed Characteristics and driving mechanisms of species beta diversity in desert plant communities
title_short Characteristics and driving mechanisms of species beta diversity in desert plant communities
title_sort characteristics and driving mechanisms of species beta diversity in desert plant communities
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7799812/
https://www.ncbi.nlm.nih.gov/pubmed/33428688
http://dx.doi.org/10.1371/journal.pone.0245249
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