Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosus
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/41264 |
Resumo: | Quantifying the trophic dynamics of invasive species in novel habitats is important for predicting the success of potential invaders and evaluating their ecological effects. The North American pumpkinseed sunfish Lepomis gibbosus is a successful invader in Europe, where it has caused negative ecological effects primarily through trophic interactions. Here, we quantified variations in the late summer trophic niche of pumpkinseed during establishment and integration in the mainstem of the Guadiana river, using stomach content analyses over a period of 40 years. Pumpkinseed showed a shift from trophic specialization during establishment to trophic generalism during integration. These results were concomitant with an increase in diet breadth that was accompanied by higher individual diet specialization particularly in large individuals. Irrespective of their drivers, these changes in trophic niche suggest that the potential ecological effects of pumpkinseed on recipient ecosystems can vary temporally along the invasion process. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosusinvasive speciestrophic nichediet shiftdiet breadthindividual diet specializationQuantifying the trophic dynamics of invasive species in novel habitats is important for predicting the success of potential invaders and evaluating their ecological effects. The North American pumpkinseed sunfish Lepomis gibbosus is a successful invader in Europe, where it has caused negative ecological effects primarily through trophic interactions. Here, we quantified variations in the late summer trophic niche of pumpkinseed during establishment and integration in the mainstem of the Guadiana river, using stomach content analyses over a period of 40 years. Pumpkinseed showed a shift from trophic specialization during establishment to trophic generalism during integration. These results were concomitant with an increase in diet breadth that was accompanied by higher individual diet specialization particularly in large individuals. Irrespective of their drivers, these changes in trophic niche suggest that the potential ecological effects of pumpkinseed on recipient ecosystems can vary temporally along the invasion process.EDP OpenRepositório da Universidade de LisboaGkenas, ChristosMagalhães, M. F.Cucherousset, J.Domingos, IsabelRibeiro, Filipe2020-01-19T21:30:01Z20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/41264eng1961-950210.1051/kmae/2016006info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-11-20T17:53:13Zoai:repositorio.ul.pt:10451/41264Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-20T17:53:13Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosus |
title |
Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosus |
spellingShingle |
Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosus Gkenas, Christos invasive species trophic niche diet shift diet breadth individual diet specialization |
title_short |
Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosus |
title_full |
Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosus |
title_fullStr |
Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosus |
title_full_unstemmed |
Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosus |
title_sort |
Long term patterns in the late summer trophic niche of the invasive pumpkinseed sunfish Lepomis gibbosus |
author |
Gkenas, Christos |
author_facet |
Gkenas, Christos Magalhães, M. F. Cucherousset, J. Domingos, Isabel Ribeiro, Filipe |
author_role |
author |
author2 |
Magalhães, M. F. Cucherousset, J. Domingos, Isabel Ribeiro, Filipe |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Gkenas, Christos Magalhães, M. F. Cucherousset, J. Domingos, Isabel Ribeiro, Filipe |
dc.subject.por.fl_str_mv |
invasive species trophic niche diet shift diet breadth individual diet specialization |
topic |
invasive species trophic niche diet shift diet breadth individual diet specialization |
description |
Quantifying the trophic dynamics of invasive species in novel habitats is important for predicting the success of potential invaders and evaluating their ecological effects. The North American pumpkinseed sunfish Lepomis gibbosus is a successful invader in Europe, where it has caused negative ecological effects primarily through trophic interactions. Here, we quantified variations in the late summer trophic niche of pumpkinseed during establishment and integration in the mainstem of the Guadiana river, using stomach content analyses over a period of 40 years. Pumpkinseed showed a shift from trophic specialization during establishment to trophic generalism during integration. These results were concomitant with an increase in diet breadth that was accompanied by higher individual diet specialization particularly in large individuals. Irrespective of their drivers, these changes in trophic niche suggest that the potential ecological effects of pumpkinseed on recipient ecosystems can vary temporally along the invasion process. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2016-01-01T00:00:00Z 2020-01-19T21:30:01Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/41264 |
url |
http://hdl.handle.net/10451/41264 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1961-9502 10.1051/kmae/2016006 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
EDP Open |
publisher.none.fl_str_mv |
EDP Open |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
mluisa.alvim@gmail.com |
_version_ |
1817549059839229952 |