Fish-mediated impacts highlight the conservation value of esker kettle lakes

Kettle lakes on eskers, formed during glacial retreat and isolated from surface hydrological networks, represent unique ecosystems that provide high-quality habitats for aquatic biodiversity and offer essential services such as drinking water. However, their ecological integrity is increasingly thre...

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Detalhes bibliográficos
Autores: Grosbois, Guillaume, Hasan, Akib, Noualhaguet, Marion, Montoro Girona, Miguel
Tipo de documento: artigo
Data de publicação:2025
País:España
Recursos:Universidad de Huelva (UHU)
Repositório:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglês
OAI Identifier:oai:ariasmontano.uhu.es:10272/27648
Acesso em linha:https://hdl.handle.net/10272/27648
Access Level:Acceso aberto
Palavra-chave:Biodiversity
Disturbances
Fishless lakes
Food webs
Macroinvertebrate
Waterbird
2401 Biología Animal (Zoología)
2508.05 Hidrobiología
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oai_identifier_str oai:ariasmontano.uhu.es:10272/27648
network_acronym_str ES
network_name_str España
repository_id_str
spelling Fish-mediated impacts highlight the conservation value of esker kettle lakesGrosbois, GuillaumeHasan, AkibNoualhaguet, MarionMontoro Girona, MiguelBiodiversityDisturbancesFishless lakesFood websMacroinvertebrateWaterbird2401 Biología Animal (Zoología)2508.05 HidrobiologíaKettle lakes on eskers, formed during glacial retreat and isolated from surface hydrological networks, represent unique ecosystems that provide high-quality habitats for aquatic biodiversity and offer essential services such as drinking water. However, their ecological integrity is increasingly threatened by fish introductions and forest harvesting. We assessed the effects of fish presence on waterbird and macroinvertebrate communities in esker kettle lakes of Eastern Canada, using these taxa as indicators of ecosystem health. Comparisons were made with clay-belt lakes, the region’s most common and typically fish-bearing waterbodies. Physicochemical conditions differed markedly between esker and clay-belt lakes but not between fishless and fish-bearing esker lakes. Waterbird richness and abundance varied among lake types, with several species negatively affected by fish presence. Macroinvertebrate communities were also shaped by fish, while fish assemblages differed between esker and clay-belt lakes. In esker lakes, fish richness was positively correlated with a forest disturbance index reflecting human access, forestry, agriculture, housing, and recreational activities. Our results highlight the distinctive species assemblages of fishless esker lakes and their high vulnerability to anthropogenic pressures. Protecting these ecosystems is essential for biodiversity conservation, and our findings provide a scientific basis for sustainable management integrating lake and forest ecosystems.Nature Research20252025-01-0120252025-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10272/27648reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/276482026-06-02T14:58:11Z
dc.title.none.fl_str_mv Fish-mediated impacts highlight the conservation value of esker kettle lakes
title Fish-mediated impacts highlight the conservation value of esker kettle lakes
spellingShingle Fish-mediated impacts highlight the conservation value of esker kettle lakes
Grosbois, Guillaume
Biodiversity
Disturbances
Fishless lakes
Food webs
Macroinvertebrate
Waterbird
2401 Biología Animal (Zoología)
2508.05 Hidrobiología
title_short Fish-mediated impacts highlight the conservation value of esker kettle lakes
title_full Fish-mediated impacts highlight the conservation value of esker kettle lakes
title_fullStr Fish-mediated impacts highlight the conservation value of esker kettle lakes
title_full_unstemmed Fish-mediated impacts highlight the conservation value of esker kettle lakes
title_sort Fish-mediated impacts highlight the conservation value of esker kettle lakes
dc.creator.none.fl_str_mv Grosbois, Guillaume
Hasan, Akib
Noualhaguet, Marion
Montoro Girona, Miguel
author Grosbois, Guillaume
author_facet Grosbois, Guillaume
Hasan, Akib
Noualhaguet, Marion
Montoro Girona, Miguel
author_role author
author2 Hasan, Akib
Noualhaguet, Marion
Montoro Girona, Miguel
author2_role author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Biodiversity
Disturbances
Fishless lakes
Food webs
Macroinvertebrate
Waterbird
2401 Biología Animal (Zoología)
2508.05 Hidrobiología
topic Biodiversity
Disturbances
Fishless lakes
Food webs
Macroinvertebrate
Waterbird
2401 Biología Animal (Zoología)
2508.05 Hidrobiología
description Kettle lakes on eskers, formed during glacial retreat and isolated from surface hydrological networks, represent unique ecosystems that provide high-quality habitats for aquatic biodiversity and offer essential services such as drinking water. However, their ecological integrity is increasingly threatened by fish introductions and forest harvesting. We assessed the effects of fish presence on waterbird and macroinvertebrate communities in esker kettle lakes of Eastern Canada, using these taxa as indicators of ecosystem health. Comparisons were made with clay-belt lakes, the region’s most common and typically fish-bearing waterbodies. Physicochemical conditions differed markedly between esker and clay-belt lakes but not between fishless and fish-bearing esker lakes. Waterbird richness and abundance varied among lake types, with several species negatively affected by fish presence. Macroinvertebrate communities were also shaped by fish, while fish assemblages differed between esker and clay-belt lakes. In esker lakes, fish richness was positively correlated with a forest disturbance index reflecting human access, forestry, agriculture, housing, and recreational activities. Our results highlight the distinctive species assemblages of fishless esker lakes and their high vulnerability to anthropogenic pressures. Protecting these ecosystems is essential for biodiversity conservation, and our findings provide a scientific basis for sustainable management integrating lake and forest ecosystems.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-01-01
2025
2025-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10272/27648
url https://hdl.handle.net/10272/27648
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature Research
publisher.none.fl_str_mv Nature Research
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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