Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem

Autores
Sahade, Ricardo Jose; Lagger, Cristian Fabian; Torre, Luciana; Momo, Fernando; Monien, Patrick; Schloss, Irene Ruth; Barnes, David K. A.; Servetto, Natalia; Tarantelli, Soledad; Tatian, Marcos; Zamboni, Nadia; Abele, Doris
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Antarctic Peninsula (AP) is one of the three places on Earth that registered the most intense warming in the last 50 years, almost five times the global mean. This warming has strongly affected the cryosphere, causing the largest ice-shelf collapses ever observed and the retreat of 87% of glaciers. Ecosystem responses, although increasingly predicted, have been mainly reported for pelagic systems. However, and despite most Antarctic species being benthic, responses in the Antarctic benthos have been detected in only a few species, and major effects at assemblage level are unknown. This is probably due to the scarcity of baselines against which to assess change. We performed repeat surveys of coastal benthos in 1994, 1998, and 2010, analyzing community structure and environmental variables at King George Island, Antarctica. We report a marked shift in an Antarctic benthic community that can be linked to ongoing climate change. However, rather than temperature as the primary factor, we highlight the resulting increased sediment runoff, triggered by glacier retreat, as the potential causal factor. The sudden shift from a ?filter feeders?ascidian domination? to a ?mixed assemblage? suggests that thresholds (for example, of tolerable sedimentation) and alternative equilibrium states, depending on the reversibility of the changes, could be possible traits of this ecosystem. Sedimentation processes will be increasing under the current scenario of glacier retreat, and attention needs to be paid to its effects along the AP.
Fil: Sahade, Ricardo Jose. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Lagger, Cristian Fabian. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Torre, Luciana. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Momo, Fernando. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. Universidad Nacional de Lujan. Instituto de Ecologia y Desarrollo Sustentable; Argentina
Fil: Monien, Patrick. Institute for Chemistry and Biology of the Marine Environment; Alemania. Universitat Bremen; Alemania
Fil: Schloss, Irene Ruth. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Barnes, David K. A.. British Antarctic Survey; Reino Unido
Fil: Servetto, Natalia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Tarantelli, Soledad. Universidad Nacional de Cordoba. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Diversidad Biologica y Ecologica. Cat.de Ecologia Marina; Argentina
Fil: Tatian, Marcos. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Zamboni, Nadia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Abele, Doris. Alfred Wegener Institute; Alemania
Materia
Antarctica
Climatic change
Glacier retreat
Benthic community
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7934
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/7934
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystemSahade, Ricardo JoseLagger, Cristian FabianTorre, LucianaMomo, FernandoMonien, PatrickSchloss, Irene RuthBarnes, David K. A.Servetto, NataliaTarantelli, SoledadTatian, MarcosZamboni, NadiaAbele, DorisAntarcticaClimatic changeGlacier retreatBenthic communityhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Antarctic Peninsula (AP) is one of the three places on Earth that registered the most intense warming in the last 50 years, almost five times the global mean. This warming has strongly affected the cryosphere, causing the largest ice-shelf collapses ever observed and the retreat of 87% of glaciers. Ecosystem responses, although increasingly predicted, have been mainly reported for pelagic systems. However, and despite most Antarctic species being benthic, responses in the Antarctic benthos have been detected in only a few species, and major effects at assemblage level are unknown. This is probably due to the scarcity of baselines against which to assess change. We performed repeat surveys of coastal benthos in 1994, 1998, and 2010, analyzing community structure and environmental variables at King George Island, Antarctica. We report a marked shift in an Antarctic benthic community that can be linked to ongoing climate change. However, rather than temperature as the primary factor, we highlight the resulting increased sediment runoff, triggered by glacier retreat, as the potential causal factor. The sudden shift from a ?filter feeders?ascidian domination? to a ?mixed assemblage? suggests that thresholds (for example, of tolerable sedimentation) and alternative equilibrium states, depending on the reversibility of the changes, could be possible traits of this ecosystem. Sedimentation processes will be increasing under the current scenario of glacier retreat, and attention needs to be paid to its effects along the AP.Fil: Sahade, Ricardo Jose. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; ArgentinaFil: Lagger, Cristian Fabian. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; ArgentinaFil: Torre, Luciana. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; ArgentinaFil: Momo, Fernando. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. Universidad Nacional de Lujan. Instituto de Ecologia y Desarrollo Sustentable; ArgentinaFil: Monien, Patrick. Institute for Chemistry and Biology of the Marine Environment; Alemania. Universitat Bremen; AlemaniaFil: Schloss, Irene Ruth. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaFil: Barnes, David K. A.. British Antarctic Survey; Reino UnidoFil: Servetto, Natalia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; ArgentinaFil: Tarantelli, Soledad. Universidad Nacional de Cordoba. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Diversidad Biologica y Ecologica. Cat.de Ecologia Marina; ArgentinaFil: Tatian, Marcos. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; ArgentinaFil: Zamboni, Nadia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; ArgentinaFil: Abele, Doris. Alfred Wegener Institute; AlemaniaAAAS2015-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7934Sahade, Ricardo Jose; Lagger, Cristian Fabian; Torre, Luciana; Momo, Fernando; Monien, Patrick; et al.; Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem; AAAS; Science Advances; 1; 10; 11-2015; 1-82375-2548enginfo:eu-repo/semantics/altIdentifier/url/http://advances.sciencemag.org/content/1/10/e1500050info:eu-repo/semantics/altIdentifier/doi/10.1126/sciadv.1500050info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:43:49Zoai:ri.conicet.gov.ar:11336/7934instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:43:49.915CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem
title Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem
spellingShingle Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem
Sahade, Ricardo Jose
Antarctica
Climatic change
Glacier retreat
Benthic community
title_short Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem
title_full Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem
title_fullStr Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem
title_full_unstemmed Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem
title_sort Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem
dc.creator.none.fl_str_mv Sahade, Ricardo Jose
Lagger, Cristian Fabian
Torre, Luciana
Momo, Fernando
Monien, Patrick
Schloss, Irene Ruth
Barnes, David K. A.
Servetto, Natalia
Tarantelli, Soledad
Tatian, Marcos
Zamboni, Nadia
Abele, Doris
author Sahade, Ricardo Jose
author_facet Sahade, Ricardo Jose
Lagger, Cristian Fabian
Torre, Luciana
Momo, Fernando
Monien, Patrick
Schloss, Irene Ruth
Barnes, David K. A.
Servetto, Natalia
Tarantelli, Soledad
Tatian, Marcos
Zamboni, Nadia
Abele, Doris
author_role author
author2 Lagger, Cristian Fabian
Torre, Luciana
Momo, Fernando
Monien, Patrick
Schloss, Irene Ruth
Barnes, David K. A.
Servetto, Natalia
Tarantelli, Soledad
Tatian, Marcos
Zamboni, Nadia
Abele, Doris
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Antarctica
Climatic change
Glacier retreat
Benthic community
topic Antarctica
Climatic change
Glacier retreat
Benthic community
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Antarctic Peninsula (AP) is one of the three places on Earth that registered the most intense warming in the last 50 years, almost five times the global mean. This warming has strongly affected the cryosphere, causing the largest ice-shelf collapses ever observed and the retreat of 87% of glaciers. Ecosystem responses, although increasingly predicted, have been mainly reported for pelagic systems. However, and despite most Antarctic species being benthic, responses in the Antarctic benthos have been detected in only a few species, and major effects at assemblage level are unknown. This is probably due to the scarcity of baselines against which to assess change. We performed repeat surveys of coastal benthos in 1994, 1998, and 2010, analyzing community structure and environmental variables at King George Island, Antarctica. We report a marked shift in an Antarctic benthic community that can be linked to ongoing climate change. However, rather than temperature as the primary factor, we highlight the resulting increased sediment runoff, triggered by glacier retreat, as the potential causal factor. The sudden shift from a ?filter feeders?ascidian domination? to a ?mixed assemblage? suggests that thresholds (for example, of tolerable sedimentation) and alternative equilibrium states, depending on the reversibility of the changes, could be possible traits of this ecosystem. Sedimentation processes will be increasing under the current scenario of glacier retreat, and attention needs to be paid to its effects along the AP.
Fil: Sahade, Ricardo Jose. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Lagger, Cristian Fabian. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Torre, Luciana. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Momo, Fernando. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. Universidad Nacional de Lujan. Instituto de Ecologia y Desarrollo Sustentable; Argentina
Fil: Monien, Patrick. Institute for Chemistry and Biology of the Marine Environment; Alemania. Universitat Bremen; Alemania
Fil: Schloss, Irene Ruth. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Barnes, David K. A.. British Antarctic Survey; Reino Unido
Fil: Servetto, Natalia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Tarantelli, Soledad. Universidad Nacional de Cordoba. Facultad de Cs.exactas Fisicas y Naturales. Departamento de Diversidad Biologica y Ecologica. Cat.de Ecologia Marina; Argentina
Fil: Tatian, Marcos. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Zamboni, Nadia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina
Fil: Abele, Doris. Alfred Wegener Institute; Alemania
description The Antarctic Peninsula (AP) is one of the three places on Earth that registered the most intense warming in the last 50 years, almost five times the global mean. This warming has strongly affected the cryosphere, causing the largest ice-shelf collapses ever observed and the retreat of 87% of glaciers. Ecosystem responses, although increasingly predicted, have been mainly reported for pelagic systems. However, and despite most Antarctic species being benthic, responses in the Antarctic benthos have been detected in only a few species, and major effects at assemblage level are unknown. This is probably due to the scarcity of baselines against which to assess change. We performed repeat surveys of coastal benthos in 1994, 1998, and 2010, analyzing community structure and environmental variables at King George Island, Antarctica. We report a marked shift in an Antarctic benthic community that can be linked to ongoing climate change. However, rather than temperature as the primary factor, we highlight the resulting increased sediment runoff, triggered by glacier retreat, as the potential causal factor. The sudden shift from a ?filter feeders?ascidian domination? to a ?mixed assemblage? suggests that thresholds (for example, of tolerable sedimentation) and alternative equilibrium states, depending on the reversibility of the changes, could be possible traits of this ecosystem. Sedimentation processes will be increasing under the current scenario of glacier retreat, and attention needs to be paid to its effects along the AP.
publishDate 2015
dc.date.none.fl_str_mv 2015-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/7934
Sahade, Ricardo Jose; Lagger, Cristian Fabian; Torre, Luciana; Momo, Fernando; Monien, Patrick; et al.; Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem; AAAS; Science Advances; 1; 10; 11-2015; 1-8
2375-2548
url http://hdl.handle.net/11336/7934
identifier_str_mv Sahade, Ricardo Jose; Lagger, Cristian Fabian; Torre, Luciana; Momo, Fernando; Monien, Patrick; et al.; Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem; AAAS; Science Advances; 1; 10; 11-2015; 1-8
2375-2548
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://advances.sciencemag.org/content/1/10/e1500050
info:eu-repo/semantics/altIdentifier/doi/10.1126/sciadv.1500050
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv AAAS
publisher.none.fl_str_mv AAAS
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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