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Interactive Effects of Copper Contamination and Salinization Across Multiple Genotypes of Daphnia magna.

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Title: Interactive Effects of Copper Contamination and Salinization Across Multiple Genotypes of Daphnia magna.
Authors: Hernandez Villatoro, Andrea Michelle1 (AUTHOR), Piggott, Jeremy J.1 (AUTHOR), Ryan, Adam P.2 (AUTHOR), Luijckx, Pepijn1 (AUTHOR), Carrier‐Belleau, Charlotte1 (AUTHOR) carrierc@tcd.ie
Source: Ecology & Evolution (20457758). Nov2025, Vol. 15 Issue 11, p1-13. 13p.
Subject Terms: *Copper poisoning, *Salinization, *Pollutants, *Ecosystem management, *Biodiversity, Genotypes, Genetic variation, Daphnia magna
Geographic Terms: United States
Abstract: Understanding how organisms respond to multiple environmental stressors is essential for predicting ecosystem impacts in the face of increasing anthropogenic pressures. However, few studies have explicitly examined how genotypes of the same species respond to combined stressors, with the specific objective of disentangling variation both within and across geographic locations. In this study, we examined the individual and combined effects of copper contamination and elevated salinity on multiple genotypes of Daphnia magna from US and French populations. Our findings revealed that copper exposure consistently increased mortality across all genotypes, with US genotypes displaying greater sensitivity than French counterparts. Salinity stress primarily reduced fecundity, and again, US genotypes exhibited lower resilience. Under combined copper and salinity stress, however, US genotypes showed survival benefits, suggesting potential cross‐tolerance mechanisms between these stressors. Moreover, there was substantial variation in the response to both stressors within both locations. This genotype‐specific variation underscores the necessity of considering genetic factors and genotype‐specific sensitivity/tolerance in ecosystem management and conservation strategies, particularly under multiple‐stressor scenarios. Further exploration of the genetic pathways and adaptation potential driving these responses will enhance our ability to support biodiversity and ecosystem resilience amid global environmental change. [ABSTRACT FROM AUTHOR]
Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: GreenFILE
An: 189710373
AccessLevel: 6
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PubTypeId: academicJournal
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  Data: Interactive Effects of Copper Contamination and Salinization Across Multiple Genotypes of Daphnia magna.
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  Data: <searchLink fieldCode="AR" term="%22Hernandez+Villatoro%2C+Andrea+Michelle%22">Hernandez Villatoro, Andrea Michelle</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Piggott%2C+Jeremy+J%2E%22">Piggott, Jeremy J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ryan%2C+Adam+P%2E%22">Ryan, Adam P.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Luijckx%2C+Pepijn%22">Luijckx, Pepijn</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Carrier‐Belleau%2C+Charlotte%22">Carrier‐Belleau, Charlotte</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> carrierc@tcd.ie</i>
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  Data: <searchLink fieldCode="JN" term="%22Ecology+%26+Evolution+%2820457758%29%22">Ecology & Evolution (20457758)</searchLink>. Nov2025, Vol. 15 Issue 11, p1-13. 13p.
– Name: Subject
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  Data: *<searchLink fieldCode="DE" term="%22Copper+poisoning%22">Copper poisoning</searchLink><br />*<searchLink fieldCode="DE" term="%22Salinization%22">Salinization</searchLink><br />*<searchLink fieldCode="DE" term="%22Pollutants%22">Pollutants</searchLink><br />*<searchLink fieldCode="DE" term="%22Ecosystem+management%22">Ecosystem management</searchLink><br />*<searchLink fieldCode="DE" term="%22Biodiversity%22">Biodiversity</searchLink><br /><searchLink fieldCode="DE" term="%22Genotypes%22">Genotypes</searchLink><br /><searchLink fieldCode="DE" term="%22Genetic+variation%22">Genetic variation</searchLink><br /><searchLink fieldCode="DE" term="%22Daphnia+magna%22">Daphnia magna</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22United+States%22">United States</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Understanding how organisms respond to multiple environmental stressors is essential for predicting ecosystem impacts in the face of increasing anthropogenic pressures. However, few studies have explicitly examined how genotypes of the same species respond to combined stressors, with the specific objective of disentangling variation both within and across geographic locations. In this study, we examined the individual and combined effects of copper contamination and elevated salinity on multiple genotypes of Daphnia magna from US and French populations. Our findings revealed that copper exposure consistently increased mortality across all genotypes, with US genotypes displaying greater sensitivity than French counterparts. Salinity stress primarily reduced fecundity, and again, US genotypes exhibited lower resilience. Under combined copper and salinity stress, however, US genotypes showed survival benefits, suggesting potential cross‐tolerance mechanisms between these stressors. Moreover, there was substantial variation in the response to both stressors within both locations. This genotype‐specific variation underscores the necessity of considering genetic factors and genotype‐specific sensitivity/tolerance in ecosystem management and conservation strategies, particularly under multiple‐stressor scenarios. Further exploration of the genetic pathways and adaptation potential driving these responses will enhance our ability to support biodiversity and ecosystem resilience amid global environmental change. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/ece3.72446
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 1
    Subjects:
      – SubjectFull: Copper poisoning
        Type: general
      – SubjectFull: Salinization
        Type: general
      – SubjectFull: Pollutants
        Type: general
      – SubjectFull: Ecosystem management
        Type: general
      – SubjectFull: Biodiversity
        Type: general
      – SubjectFull: Genotypes
        Type: general
      – SubjectFull: Genetic variation
        Type: general
      – SubjectFull: Daphnia magna
        Type: general
      – SubjectFull: United States
        Type: general
    Titles:
      – TitleFull: Interactive Effects of Copper Contamination and Salinization Across Multiple Genotypes of Daphnia magna.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Hernandez Villatoro, Andrea Michelle
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            NameFull: Piggott, Jeremy J.
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            NameFull: Ryan, Adam P.
      – PersonEntity:
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            NameFull: Luijckx, Pepijn
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            NameFull: Carrier‐Belleau, Charlotte
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          Dates:
            – D: 01
              M: 11
              Text: Nov2025
              Type: published
              Y: 2025
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              Value: 15
            – Type: issue
              Value: 11
          Titles:
            – TitleFull: Ecology & Evolution (20457758)
              Type: main
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