Topological properties of polar food webs

Autores
de Santana, Charles N.; Rozenfeld, Alejandro Fabian; Marquet, Pablo A.; Duarte, Carlos M.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Mean annual temperatures of the Arctic Ocean and Antarctic Peninsula are warming much faster than global mean warming rates, which will likely result in significant biological impacts. Whereas most assessments have been made on individual species, impacts may differ when entire ecosystems are considered, as effects may propagate through ecological interactions such as those in food webs (FWs). The vulnerability of FWs to adverse effects can be estimated from the topology of the networks involved. Here we describe topological characteristics of Arctic and Antarctic marine FWs relevant to their vulnerability to climate change. We analyzed 15 properties of the largest Arctic and Antarctic marine FWs available, and found important topological differences between them. The Arctic FW has greater top to basal and predator to prey species ratios and is more densely connected, with more omnivorous species, than the Antarctic FW. The cumulative degree distribution (CDD; cumulative distribution of the number of links that each species in the food web has) of the Arctic FW follows an exponential decay behavior, whereas that of the Antarctic has a power law cut-off at higher degrees. The differences in the properties analyzed indicate that the Arctic FW has a greater diversity of predators and top species, while the Antarctic has a greater diversity of prey and basal species. The former seems to be more vulnerable to trophic cascade effects resulting from losses of key predator species than the latter. Characteristics of CDDs suggest that the Arctic FW may be more robust against random extinctions of species, although it may be more vulnerable to extinctions affecting the most connected prey species, such as Antarctic krill Euphausia superba, which is the most connected prey species in this trophic network.
Fil: de Santana, Charles N.. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España
Fil: Rozenfeld, Alejandro Fabian. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España. University of Évora; Portugal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Marquet, Pablo A.. Pontificia Universidad Católica de Chile; Chile. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España. The Santa Fe Institute; Estados Unidos
Fil: Duarte, Carlos M.. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España. University of Western Australia; Australia
Materia
ANTARCTIC
ARCTIC
COMPLEX NETWORKS
GLOBAL CHANGE
TROPHIC CASCADE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7024

id CONICETDig_36f83b336e90678dacc9096013c8ec4c
oai_identifier_str oai:ri.conicet.gov.ar:11336/7024
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Topological properties of polar food websde Santana, Charles N.Rozenfeld, Alejandro FabianMarquet, Pablo A.Duarte, Carlos M.ANTARCTICARCTICCOMPLEX NETWORKSGLOBAL CHANGETROPHIC CASCADEhttps://purl.org/becyt/ford/1.2https://purl.org/becyt/ford/1Mean annual temperatures of the Arctic Ocean and Antarctic Peninsula are warming much faster than global mean warming rates, which will likely result in significant biological impacts. Whereas most assessments have been made on individual species, impacts may differ when entire ecosystems are considered, as effects may propagate through ecological interactions such as those in food webs (FWs). The vulnerability of FWs to adverse effects can be estimated from the topology of the networks involved. Here we describe topological characteristics of Arctic and Antarctic marine FWs relevant to their vulnerability to climate change. We analyzed 15 properties of the largest Arctic and Antarctic marine FWs available, and found important topological differences between them. The Arctic FW has greater top to basal and predator to prey species ratios and is more densely connected, with more omnivorous species, than the Antarctic FW. The cumulative degree distribution (CDD; cumulative distribution of the number of links that each species in the food web has) of the Arctic FW follows an exponential decay behavior, whereas that of the Antarctic has a power law cut-off at higher degrees. The differences in the properties analyzed indicate that the Arctic FW has a greater diversity of predators and top species, while the Antarctic has a greater diversity of prey and basal species. The former seems to be more vulnerable to trophic cascade effects resulting from losses of key predator species than the latter. Characteristics of CDDs suggest that the Arctic FW may be more robust against random extinctions of species, although it may be more vulnerable to extinctions affecting the most connected prey species, such as Antarctic krill Euphausia superba, which is the most connected prey species in this trophic network.Fil: de Santana, Charles N.. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; EspañaFil: Rozenfeld, Alejandro Fabian. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España. University of Évora; Portugal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaFil: Marquet, Pablo A.. Pontificia Universidad Católica de Chile; Chile. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España. The Santa Fe Institute; Estados UnidosFil: Duarte, Carlos M.. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España. University of Western Australia; AustraliaInter-Research2013-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7024de Santana, Charles N.; Rozenfeld, Alejandro Fabian; Marquet, Pablo A.; Duarte, Carlos M.; Topological properties of polar food webs; Inter-Research; Marine Ecology Progress Series; 474; 1-2013; 15-260171-8630enginfo:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/meps/v474/p15-26/info:eu-repo/semantics/altIdentifier/doi/10.3354/meps10073info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:36:34Zoai:ri.conicet.gov.ar:11336/7024instacron: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:34982025-09-29 10:36:34.584CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Topological properties of polar food webs
title Topological properties of polar food webs
spellingShingle Topological properties of polar food webs
de Santana, Charles N.
ANTARCTIC
ARCTIC
COMPLEX NETWORKS
GLOBAL CHANGE
TROPHIC CASCADE
title_short Topological properties of polar food webs
title_full Topological properties of polar food webs
title_fullStr Topological properties of polar food webs
title_full_unstemmed Topological properties of polar food webs
title_sort Topological properties of polar food webs
dc.creator.none.fl_str_mv de Santana, Charles N.
Rozenfeld, Alejandro Fabian
Marquet, Pablo A.
Duarte, Carlos M.
author de Santana, Charles N.
author_facet de Santana, Charles N.
Rozenfeld, Alejandro Fabian
Marquet, Pablo A.
Duarte, Carlos M.
author_role author
author2 Rozenfeld, Alejandro Fabian
Marquet, Pablo A.
Duarte, Carlos M.
author2_role author
author
author
dc.subject.none.fl_str_mv ANTARCTIC
ARCTIC
COMPLEX NETWORKS
GLOBAL CHANGE
TROPHIC CASCADE
topic ANTARCTIC
ARCTIC
COMPLEX NETWORKS
GLOBAL CHANGE
TROPHIC CASCADE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.2
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Mean annual temperatures of the Arctic Ocean and Antarctic Peninsula are warming much faster than global mean warming rates, which will likely result in significant biological impacts. Whereas most assessments have been made on individual species, impacts may differ when entire ecosystems are considered, as effects may propagate through ecological interactions such as those in food webs (FWs). The vulnerability of FWs to adverse effects can be estimated from the topology of the networks involved. Here we describe topological characteristics of Arctic and Antarctic marine FWs relevant to their vulnerability to climate change. We analyzed 15 properties of the largest Arctic and Antarctic marine FWs available, and found important topological differences between them. The Arctic FW has greater top to basal and predator to prey species ratios and is more densely connected, with more omnivorous species, than the Antarctic FW. The cumulative degree distribution (CDD; cumulative distribution of the number of links that each species in the food web has) of the Arctic FW follows an exponential decay behavior, whereas that of the Antarctic has a power law cut-off at higher degrees. The differences in the properties analyzed indicate that the Arctic FW has a greater diversity of predators and top species, while the Antarctic has a greater diversity of prey and basal species. The former seems to be more vulnerable to trophic cascade effects resulting from losses of key predator species than the latter. Characteristics of CDDs suggest that the Arctic FW may be more robust against random extinctions of species, although it may be more vulnerable to extinctions affecting the most connected prey species, such as Antarctic krill Euphausia superba, which is the most connected prey species in this trophic network.
Fil: de Santana, Charles N.. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España
Fil: Rozenfeld, Alejandro Fabian. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España. University of Évora; Portugal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Marquet, Pablo A.. Pontificia Universidad Católica de Chile; Chile. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España. The Santa Fe Institute; Estados Unidos
Fil: Duarte, Carlos M.. Consejo Superior de Investigaciones Cientificas. Instituto Mediterraneo de Estudios Avanzados; España. University of Western Australia; Australia
description Mean annual temperatures of the Arctic Ocean and Antarctic Peninsula are warming much faster than global mean warming rates, which will likely result in significant biological impacts. Whereas most assessments have been made on individual species, impacts may differ when entire ecosystems are considered, as effects may propagate through ecological interactions such as those in food webs (FWs). The vulnerability of FWs to adverse effects can be estimated from the topology of the networks involved. Here we describe topological characteristics of Arctic and Antarctic marine FWs relevant to their vulnerability to climate change. We analyzed 15 properties of the largest Arctic and Antarctic marine FWs available, and found important topological differences between them. The Arctic FW has greater top to basal and predator to prey species ratios and is more densely connected, with more omnivorous species, than the Antarctic FW. The cumulative degree distribution (CDD; cumulative distribution of the number of links that each species in the food web has) of the Arctic FW follows an exponential decay behavior, whereas that of the Antarctic has a power law cut-off at higher degrees. The differences in the properties analyzed indicate that the Arctic FW has a greater diversity of predators and top species, while the Antarctic has a greater diversity of prey and basal species. The former seems to be more vulnerable to trophic cascade effects resulting from losses of key predator species than the latter. Characteristics of CDDs suggest that the Arctic FW may be more robust against random extinctions of species, although it may be more vulnerable to extinctions affecting the most connected prey species, such as Antarctic krill Euphausia superba, which is the most connected prey species in this trophic network.
publishDate 2013
dc.date.none.fl_str_mv 2013-01
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/11336/7024
de Santana, Charles N.; Rozenfeld, Alejandro Fabian; Marquet, Pablo A.; Duarte, Carlos M.; Topological properties of polar food webs; Inter-Research; Marine Ecology Progress Series; 474; 1-2013; 15-26
0171-8630
url http://hdl.handle.net/11336/7024
identifier_str_mv de Santana, Charles N.; Rozenfeld, Alejandro Fabian; Marquet, Pablo A.; Duarte, Carlos M.; Topological properties of polar food webs; Inter-Research; Marine Ecology Progress Series; 474; 1-2013; 15-26
0171-8630
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/meps/v474/p15-26/
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps10073
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Inter-Research
publisher.none.fl_str_mv Inter-Research
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
_version_ 1844614386313854976
score 13.070432