Genotypic richness of Phragmites australis negatively impacts ecosystem multifunctionality in the coastal wetland of Yellow River Delta, China

The study of the relationship between genetic diversity and ecosystem functions (EFs) primarily focuses on the relationship between species diversity and EFs, with less emphasis on investigating the connection between genetic diversity and EFs, particularly in relation to ecosystem multifunctionalit...

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Main Authors: Liwen Zhang, Lianjun Zhao, Siqun Lan, Lin Chen, Guangxuan Han
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Global Ecology and Conservation
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Online Access:http://www.sciencedirect.com/science/article/pii/S2351989425002100
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author Liwen Zhang
Lianjun Zhao
Siqun Lan
Lin Chen
Guangxuan Han
author_facet Liwen Zhang
Lianjun Zhao
Siqun Lan
Lin Chen
Guangxuan Han
author_sort Liwen Zhang
collection DOAJ
description The study of the relationship between genetic diversity and ecosystem functions (EFs) primarily focuses on the relationship between species diversity and EFs, with less emphasis on investigating the connection between genetic diversity and EFs, particularly in relation to ecosystem multifunctionality. We conducted an outdoor common garden experiment to manipulate the genotypic richness of Phragmites australis and investigate its relationship with ecosystem multifunctionality in the coastal wetland of the Yellow River Delta. Our findings revealed that the impact of genotypic richness of P. australis on EFs varied in the coastal wetland of the Yellow River Delta, particularly with regards to soil bacterial richness, where P. australis genetic richness has been found to exert a significantly negative effect. The analysis further demonstrated that as genotypic richness increased, there was a corresponding decreasing trend in the average multifunctionality index. This could be attributed to competitions among genotypes leading to a reduction in ecosystem multifunctionality. Furthermore, when considering different thresholds (the proportion of EF reaching their maximum value) for EF (20 %, 40 %, and 60 %), higher genotypic richness led to an increased number of EFs attaining the maximum value. However, at the higher level (80 %) threshold, higher genotypic richness reduced the number of EFs reaching the maximum value. Our study demonstrated that an increase in plant genotypic richness may reduce ecosystem multifunctionality. It suggests that the introduction of new genotypes into an ecosystem may potentially reduce its multifunctionality, thus caution should be exercised when introducing new genotypes.
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spelling doaj-art-8e8ddb5186ac4db3a10ab2ad5af2d7a62025-08-20T01:55:33ZengElsevierGlobal Ecology and Conservation2351-98942025-08-0160e0360910.1016/j.gecco.2025.e03609Genotypic richness of Phragmites australis negatively impacts ecosystem multifunctionality in the coastal wetland of Yellow River Delta, ChinaLiwen Zhang0Lianjun Zhao1Siqun Lan2Lin Chen3Guangxuan Han4Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity, College of Life Sciences, Tianjin Normal University, Tianjin 300387, PR China; Corresponding authors.CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), YICCAS, Yantai, Shandong 264003, PR China; Yellow River Delta Field Observation and Research Station of Coastal Wetland Ecosystem, YICCAS, Yantai, Shandong 264003, PR China; Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, 264003, PR China; School of Resources and Environmental Engineering, Ludong University, Yantai, Shandong 264025, PR ChinaCAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), YICCAS, Yantai, Shandong 264003, PR China; Yellow River Delta Field Observation and Research Station of Coastal Wetland Ecosystem, YICCAS, Yantai, Shandong 264003, PR China; Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, 264003, PR China; School of Resources and Environmental Engineering, Ludong University, Yantai, Shandong 264025, PR ChinaCAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), YICCAS, Yantai, Shandong 264003, PR China; Yellow River Delta Field Observation and Research Station of Coastal Wetland Ecosystem, YICCAS, Yantai, Shandong 264003, PR China; Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, 264003, PR China; College of Environment and Planning, Liaocheng University, Liaocheng, Shandong 252000, PR ChinaCAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), YICCAS, Yantai, Shandong 264003, PR China; Yellow River Delta Field Observation and Research Station of Coastal Wetland Ecosystem, YICCAS, Yantai, Shandong 264003, PR China; Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, 264003, PR China; Corresponding authors.The study of the relationship between genetic diversity and ecosystem functions (EFs) primarily focuses on the relationship between species diversity and EFs, with less emphasis on investigating the connection between genetic diversity and EFs, particularly in relation to ecosystem multifunctionality. We conducted an outdoor common garden experiment to manipulate the genotypic richness of Phragmites australis and investigate its relationship with ecosystem multifunctionality in the coastal wetland of the Yellow River Delta. Our findings revealed that the impact of genotypic richness of P. australis on EFs varied in the coastal wetland of the Yellow River Delta, particularly with regards to soil bacterial richness, where P. australis genetic richness has been found to exert a significantly negative effect. The analysis further demonstrated that as genotypic richness increased, there was a corresponding decreasing trend in the average multifunctionality index. This could be attributed to competitions among genotypes leading to a reduction in ecosystem multifunctionality. Furthermore, when considering different thresholds (the proportion of EF reaching their maximum value) for EF (20 %, 40 %, and 60 %), higher genotypic richness led to an increased number of EFs attaining the maximum value. However, at the higher level (80 %) threshold, higher genotypic richness reduced the number of EFs reaching the maximum value. Our study demonstrated that an increase in plant genotypic richness may reduce ecosystem multifunctionality. It suggests that the introduction of new genotypes into an ecosystem may potentially reduce its multifunctionality, thus caution should be exercised when introducing new genotypes.http://www.sciencedirect.com/science/article/pii/S2351989425002100Genotypic diversityMultifunctionalityNutrient cyclingProductivityBacterial diversity
spellingShingle Liwen Zhang
Lianjun Zhao
Siqun Lan
Lin Chen
Guangxuan Han
Genotypic richness of Phragmites australis negatively impacts ecosystem multifunctionality in the coastal wetland of Yellow River Delta, China
Global Ecology and Conservation
Genotypic diversity
Multifunctionality
Nutrient cycling
Productivity
Bacterial diversity
title Genotypic richness of Phragmites australis negatively impacts ecosystem multifunctionality in the coastal wetland of Yellow River Delta, China
title_full Genotypic richness of Phragmites australis negatively impacts ecosystem multifunctionality in the coastal wetland of Yellow River Delta, China
title_fullStr Genotypic richness of Phragmites australis negatively impacts ecosystem multifunctionality in the coastal wetland of Yellow River Delta, China
title_full_unstemmed Genotypic richness of Phragmites australis negatively impacts ecosystem multifunctionality in the coastal wetland of Yellow River Delta, China
title_short Genotypic richness of Phragmites australis negatively impacts ecosystem multifunctionality in the coastal wetland of Yellow River Delta, China
title_sort genotypic richness of phragmites australis negatively impacts ecosystem multifunctionality in the coastal wetland of yellow river delta china
topic Genotypic diversity
Multifunctionality
Nutrient cycling
Productivity
Bacterial diversity
url http://www.sciencedirect.com/science/article/pii/S2351989425002100
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