Ecosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake

Lake level or water depth are key physical variables known to respond dramatically to climate change, especially in arid regions, and their fluctuations exert substantial influences on lake biodiversity and ecosystem functioning. However, it is unclear how multiple ecosystem functions (i.e., ecosyst...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Weizhen Zhang, Ruirui Chen, Fanfan Meng, Haijun Yuan, Mengdie Geng, Longjuan Cheng, Huaqun Yin, Bin Xue, Jianjun Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Water depth Sediment Microbial communities Ecosystem multifunctionality Semiarid region Lake Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/a44fb6dd9ce74126ac47e7bd5eac328c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a44fb6dd9ce74126ac47e7bd5eac328c
record_format	dspace
spelling	oai:doaj.org-article:a44fb6dd9ce74126ac47e7bd5eac328c2021-12-01T05:02:27ZEcosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake1470-160X10.1016/j.ecolind.2021.108314https://doaj.org/article/a44fb6dd9ce74126ac47e7bd5eac328c2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21009791https://doaj.org/toc/1470-160XLake level or water depth are key physical variables known to respond dramatically to climate change, especially in arid regions, and their fluctuations exert substantial influences on lake biodiversity and ecosystem functioning. However, it is unclear how multiple ecosystem functions (i.e., ecosystem multifunctionality, EMF) respond to changes in water depth and how aquatic community attributes, such as species richness, evenness and community compositions, are linked to EMF along water depth gradients. Lake Hulun, a representative of semiarid-region lake in China, has experienced serious lake area shrinkage over the past 20 years. Here, we explored the water-depth patterns of three microbial taxonomic groups of bacteria, archaea and fungi and nine ecosystem functions related to nutrient cycling in Lake Hulun. We further examined the relative importance of different community attributes on EMF variations. We found that the community compositions of bacteria, archaea and fungi showed consistent water-depth decay patterns, and EMF and most individual ecosystem functions involved in C, N, P and S cycling increased with water depth. Further, EMF was predominantly mediated by microbial evenness and community composition, but not species richness, as predicted by the traditional theory of biodiversity-ecosystem functioning relationships. In addition, water depth indirectly affected the relationships between the microbial community and EMF via sediment nutrient contents. These findings indicate that the water depth changes under climate change could substantially alter ecosystem structure and functioning in arid regions. We further emphasize the necessity of including multiple community attributes in biodiversity-EMF relationship research to clarify the biotic and abiotic forces underlying EMF variations.Weizhen ZhangRuirui ChenFanfan MengHaijun YuanMengdie GengLongjuan ChengHuaqun YinBin XueJianjun WangElsevierarticleWater depthSedimentMicrobial communitiesEcosystem multifunctionalitySemiarid regionLakeEcologyQH540-549.5ENEcological Indicators, Vol 132, Iss , Pp 108314- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Water depth Sediment Microbial communities Ecosystem multifunctionality Semiarid region Lake Ecology QH540-549.5
spellingShingle	Water depth Sediment Microbial communities Ecosystem multifunctionality Semiarid region Lake Ecology QH540-549.5 Weizhen Zhang Ruirui Chen Fanfan Meng Haijun Yuan Mengdie Geng Longjuan Cheng Huaqun Yin Bin Xue Jianjun Wang Ecosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake
description	Lake level or water depth are key physical variables known to respond dramatically to climate change, especially in arid regions, and their fluctuations exert substantial influences on lake biodiversity and ecosystem functioning. However, it is unclear how multiple ecosystem functions (i.e., ecosystem multifunctionality, EMF) respond to changes in water depth and how aquatic community attributes, such as species richness, evenness and community compositions, are linked to EMF along water depth gradients. Lake Hulun, a representative of semiarid-region lake in China, has experienced serious lake area shrinkage over the past 20 years. Here, we explored the water-depth patterns of three microbial taxonomic groups of bacteria, archaea and fungi and nine ecosystem functions related to nutrient cycling in Lake Hulun. We further examined the relative importance of different community attributes on EMF variations. We found that the community compositions of bacteria, archaea and fungi showed consistent water-depth decay patterns, and EMF and most individual ecosystem functions involved in C, N, P and S cycling increased with water depth. Further, EMF was predominantly mediated by microbial evenness and community composition, but not species richness, as predicted by the traditional theory of biodiversity-ecosystem functioning relationships. In addition, water depth indirectly affected the relationships between the microbial community and EMF via sediment nutrient contents. These findings indicate that the water depth changes under climate change could substantially alter ecosystem structure and functioning in arid regions. We further emphasize the necessity of including multiple community attributes in biodiversity-EMF relationship research to clarify the biotic and abiotic forces underlying EMF variations.
format	article
author	Weizhen Zhang Ruirui Chen Fanfan Meng Haijun Yuan Mengdie Geng Longjuan Cheng Huaqun Yin Bin Xue Jianjun Wang
author_facet	Weizhen Zhang Ruirui Chen Fanfan Meng Haijun Yuan Mengdie Geng Longjuan Cheng Huaqun Yin Bin Xue Jianjun Wang
author_sort	Weizhen Zhang
title	Ecosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake
title_short	Ecosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake
title_full	Ecosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake
title_fullStr	Ecosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake
title_full_unstemmed	Ecosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake
title_sort	ecosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a44fb6dd9ce74126ac47e7bd5eac328c
work_keys_str_mv	AT weizhenzhang ecosystemfunctioningislinkedtomicrobialevennessandcommunitycompositionalongdepthgradientinasemiaridlake AT ruiruichen ecosystemfunctioningislinkedtomicrobialevennessandcommunitycompositionalongdepthgradientinasemiaridlake AT fanfanmeng ecosystemfunctioningislinkedtomicrobialevennessandcommunitycompositionalongdepthgradientinasemiaridlake AT haijunyuan ecosystemfunctioningislinkedtomicrobialevennessandcommunitycompositionalongdepthgradientinasemiaridlake AT mengdiegeng ecosystemfunctioningislinkedtomicrobialevennessandcommunitycompositionalongdepthgradientinasemiaridlake AT longjuancheng ecosystemfunctioningislinkedtomicrobialevennessandcommunitycompositionalongdepthgradientinasemiaridlake AT huaqunyin ecosystemfunctioningislinkedtomicrobialevennessandcommunitycompositionalongdepthgradientinasemiaridlake AT binxue ecosystemfunctioningislinkedtomicrobialevennessandcommunitycompositionalongdepthgradientinasemiaridlake AT jianjunwang ecosystemfunctioningislinkedtomicrobialevennessandcommunitycompositionalongdepthgradientinasemiaridlake
_version_	1718405618275975168

Ecosystem functioning is linked to microbial evenness and community composition along depth gradient in a semiarid lake

Ejemplares similares