Variations and factors characterizing ecological niches of species in a stable grassland plant community

To explore the primary factors affecting the ecological niches in a plant community, four dominant shrub species (Sophora viciifolia, Periploca sepium, Buddleja alternifolia, Clematis fruticosa) and six dominant grass species (Bothriochloa ischaemum, Artemisia sacrorum, Stipa bungeana, Cleistogenes...

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Autores principales:	Hongwei Xu, Xiukang Wang, Qing Qu, Zhiyuan Yang, Minggang Wang, Guobin Liu, Sha Xue
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Relative importance value Niche breadth Plant nutrients Soil nutrients Soil microbial diversity Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/242c75a423b8413d867380ffbd67ab34
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spelling	oai:doaj.org-article:242c75a423b8413d867380ffbd67ab342021-12-01T04:54:24ZVariations and factors characterizing ecological niches of species in a stable grassland plant community1470-160X10.1016/j.ecolind.2021.107846https://doaj.org/article/242c75a423b8413d867380ffbd67ab342021-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21005112https://doaj.org/toc/1470-160XTo explore the primary factors affecting the ecological niches in a plant community, four dominant shrub species (Sophora viciifolia, Periploca sepium, Buddleja alternifolia, Clematis fruticosa) and six dominant grass species (Bothriochloa ischaemum, Artemisia sacrorum, Stipa bungeana, Cleistogenes squarrosa, Stipa grandis, Lespedeza bicolor) were selected from a stable grassland community in the Loess Plateau (China). The relative importance value and niche breadth were used as comprehensive quantitative indices to characterize the status, role, and degree of dominance of plant species in the community. We found that relative importance value and niche breadth were higher overall in shrub species than in most grass species, except B. ischaemum. Meanwhile, the relative importance value was significantly correlated with plant phosphorus concentration, plant carbon:nitrogen ratio, rhizosphere soil organic carbon, rhizosphere soil total nitrogen, rhizosphere soil total phosphorus, rhizosphere bacterial α-diversity. A stepwise regression analysis indicated that, among the plant and rhizosphere characteristics of these species, only their rhizosphere bacterial α-diversity and plant root carbon concentration primarily influence ecological niche patterns of these plant species in the community. In summary, our study reveals that shrub species occupy more advantageous ecological niches than grass species in a stable community due to the active rhizosphere interactions, providing a new opportunity to disentangle the mechanisms underlying the plant community assembly in grassland.Hongwei XuXiukang WangQing QuZhiyuan YangMinggang WangGuobin LiuSha XueElsevierarticleRelative importance valueNiche breadthPlant nutrientsSoil nutrientsSoil microbial diversityEcologyQH540-549.5ENEcological Indicators, Vol 128, Iss , Pp 107846- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Relative importance value Niche breadth Plant nutrients Soil nutrients Soil microbial diversity Ecology QH540-549.5
spellingShingle	Relative importance value Niche breadth Plant nutrients Soil nutrients Soil microbial diversity Ecology QH540-549.5 Hongwei Xu Xiukang Wang Qing Qu Zhiyuan Yang Minggang Wang Guobin Liu Sha Xue Variations and factors characterizing ecological niches of species in a stable grassland plant community
description	To explore the primary factors affecting the ecological niches in a plant community, four dominant shrub species (Sophora viciifolia, Periploca sepium, Buddleja alternifolia, Clematis fruticosa) and six dominant grass species (Bothriochloa ischaemum, Artemisia sacrorum, Stipa bungeana, Cleistogenes squarrosa, Stipa grandis, Lespedeza bicolor) were selected from a stable grassland community in the Loess Plateau (China). The relative importance value and niche breadth were used as comprehensive quantitative indices to characterize the status, role, and degree of dominance of plant species in the community. We found that relative importance value and niche breadth were higher overall in shrub species than in most grass species, except B. ischaemum. Meanwhile, the relative importance value was significantly correlated with plant phosphorus concentration, plant carbon:nitrogen ratio, rhizosphere soil organic carbon, rhizosphere soil total nitrogen, rhizosphere soil total phosphorus, rhizosphere bacterial α-diversity. A stepwise regression analysis indicated that, among the plant and rhizosphere characteristics of these species, only their rhizosphere bacterial α-diversity and plant root carbon concentration primarily influence ecological niche patterns of these plant species in the community. In summary, our study reveals that shrub species occupy more advantageous ecological niches than grass species in a stable community due to the active rhizosphere interactions, providing a new opportunity to disentangle the mechanisms underlying the plant community assembly in grassland.
format	article
author	Hongwei Xu Xiukang Wang Qing Qu Zhiyuan Yang Minggang Wang Guobin Liu Sha Xue
author_facet	Hongwei Xu Xiukang Wang Qing Qu Zhiyuan Yang Minggang Wang Guobin Liu Sha Xue
author_sort	Hongwei Xu
title	Variations and factors characterizing ecological niches of species in a stable grassland plant community
title_short	Variations and factors characterizing ecological niches of species in a stable grassland plant community
title_full	Variations and factors characterizing ecological niches of species in a stable grassland plant community
title_fullStr	Variations and factors characterizing ecological niches of species in a stable grassland plant community
title_full_unstemmed	Variations and factors characterizing ecological niches of species in a stable grassland plant community
title_sort	variations and factors characterizing ecological niches of species in a stable grassland plant community
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/242c75a423b8413d867380ffbd67ab34
work_keys_str_mv	AT hongweixu variationsandfactorscharacterizingecologicalnichesofspeciesinastablegrasslandplantcommunity AT xiukangwang variationsandfactorscharacterizingecologicalnichesofspeciesinastablegrasslandplantcommunity AT qingqu variationsandfactorscharacterizingecologicalnichesofspeciesinastablegrasslandplantcommunity AT zhiyuanyang variationsandfactorscharacterizingecologicalnichesofspeciesinastablegrasslandplantcommunity AT minggangwang variationsandfactorscharacterizingecologicalnichesofspeciesinastablegrasslandplantcommunity AT guobinliu variationsandfactorscharacterizingecologicalnichesofspeciesinastablegrasslandplantcommunity AT shaxue variationsandfactorscharacterizingecologicalnichesofspeciesinastablegrasslandplantcommunity
_version_	1718405650337234944

Variations and factors characterizing ecological niches of species in a stable grassland plant community

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