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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| Format: | Article |
| Language: | English |
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Elsevier
2021-02-01
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| Series: | Ecological Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X20310645 |
| _version_ | 1818425795479076864 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-14T14:19:37Z |
| format | Article |
| id | doaj.art-5cc6b605c4884615a02e44a1b5c5a1ac |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-12-14T14:19:37Z |
| publishDate | 2021-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-5cc6b605c4884615a02e44a1b5c5a1ac2022-12-21T22:58:06ZengElsevierEcological Indicators1470-160X2021-02-01121107125Chrysophyte stomatocysts and their associations with environmental variables in three peatlands in the subtropical monsoon climate zone of ChinaXue Bai0Jolanta Piątek1Konrad Wołowski2Zhao-Jun Bu3Xu Chen4Hubei Key Laboratory of Critical Zone Evolution, School of Earth Sciences, China University of Geosciences, Wuhan 430074, ChinaDepartment of Phycology, W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, PL-31-512 Kraków, PolandDepartment of Phycology, W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, PL-31-512 Kraków, PolandInstitute for Peat and Mire Research, State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University, Changchun 130024, ChinaHubei Key Laboratory of Critical Zone Evolution, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China; Corresponding author.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.http://www.sciencedirect.com/science/article/pii/S1470160X20310645Subtropical peatlandChrysophyte stomatocystDepth to water tableFunctional groupBioindicator |
| spellingShingle | 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 Ecological Indicators Subtropical peatland Chrysophyte stomatocyst Depth to water table Functional group Bioindicator |
| title | 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_short | 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 |
| topic | Subtropical peatland Chrysophyte stomatocyst Depth to water table Functional group Bioindicator |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X20310645 |
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