Chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of China

Peatlands are critical ecosystems in regulating global carbon cycle and hosting distinctive biodiversity. Chrysophyte stomatocysts, siliceous resting stages of golden-brown algae, are widely distributed in acidic and oligotrophic environments of peatlands. Presently, little knowledge is available on...

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Autores principales:	Xue Bai, Jolanta Piątek, Konrad Wołowski, Zhao-Jun Bu, Xu Chen
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Subtropical peatland Chrysophyte stomatocyst Depth to water table Functional group Bioindicator Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/5cc6b605c4884615a02e44a1b5c5a1ac
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spelling	oai:doaj.org-article:5cc6b605c4884615a02e44a1b5c5a1ac2021-12-01T04:35:52ZChrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of China1470-160X10.1016/j.ecolind.2020.107125https://doaj.org/article/5cc6b605c4884615a02e44a1b5c5a1ac2021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20310645https://doaj.org/toc/1470-160XPeatlands are critical ecosystems in regulating global carbon cycle and hosting distinctive biodiversity. Chrysophyte stomatocysts, siliceous resting stages of golden-brown algae, are widely distributed in acidic and oligotrophic environments of peatlands. Presently, little knowledge is available on the composition and distribution of stomatocysts in subtropical peatlands. This study investigated the communities of moss-inhabiting stomatocysts in three Sphagnum-dominated peatlands in central China, and their association with environmental variables. Fifty-nine stomatocyst morphotypes with two additional formae were identified according to the International Statospore Working Group guidelines, and stomatocyst assemblages were significantly different among the three peatlands. In addition, these stomatocyst morphotypes were classified into eight morphology-based functional groups according to morphological traits, such as types of collar and ornamentation. Redundancy analyses revealed that stomatocyst assemblages at both morphotype- and functional group-level were significantly correlated with depth to water table, oxidation reduction potential, and morphotype-level composition was further related to electronic conductivity and potassium. Generally, cysts with a complex collar preferred dry hummocks, while large cysts with long spines mainly occurred in wet hollows. This study highlights the usage of chrysophyte stomatocysts as potential bioindicators for environmental changes in these subtropical peatlands, as well as similar peaty environments.Xue BaiJolanta PiątekKonrad WołowskiZhao-Jun BuXu ChenElsevierarticleSubtropical peatlandChrysophyte stomatocystDepth to water tableFunctional groupBioindicatorEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107125- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Subtropical peatland Chrysophyte stomatocyst Depth to water table Functional group Bioindicator Ecology QH540-549.5
spellingShingle	Subtropical peatland Chrysophyte stomatocyst Depth to water table Functional group Bioindicator Ecology QH540-549.5 Xue Bai Jolanta Piątek Konrad Wołowski Zhao-Jun Bu Xu Chen Chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of China
description	Peatlands are critical ecosystems in regulating global carbon cycle and hosting distinctive biodiversity. Chrysophyte stomatocysts, siliceous resting stages of golden-brown algae, are widely distributed in acidic and oligotrophic environments of peatlands. Presently, little knowledge is available on the composition and distribution of stomatocysts in subtropical peatlands. This study investigated the communities of moss-inhabiting stomatocysts in three Sphagnum-dominated peatlands in central China, and their association with environmental variables. Fifty-nine stomatocyst morphotypes with two additional formae were identified according to the International Statospore Working Group guidelines, and stomatocyst assemblages were significantly different among the three peatlands. In addition, these stomatocyst morphotypes were classified into eight morphology-based functional groups according to morphological traits, such as types of collar and ornamentation. Redundancy analyses revealed that stomatocyst assemblages at both morphotype- and functional group-level were significantly correlated with depth to water table, oxidation reduction potential, and morphotype-level composition was further related to electronic conductivity and potassium. Generally, cysts with a complex collar preferred dry hummocks, while large cysts with long spines mainly occurred in wet hollows. This study highlights the usage of chrysophyte stomatocysts as potential bioindicators for environmental changes in these subtropical peatlands, as well as similar peaty environments.
format	article
author	Xue Bai Jolanta Piątek Konrad Wołowski Zhao-Jun Bu Xu Chen
author_facet	Xue Bai Jolanta Piątek Konrad Wołowski Zhao-Jun Bu Xu Chen
author_sort	Xue Bai
title	Chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of China
title_short	Chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of China
title_full	Chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of China
title_fullStr	Chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of China
title_full_unstemmed	Chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of China
title_sort	chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/5cc6b605c4884615a02e44a1b5c5a1ac
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Chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of China

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