Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian Sea

Studying the sympatric ecology of closely related marine top predator species is of interest both from an ecological and conservation standpoint, because it provides insights into ecosystem functioning, how such species avoid competitive exclusion, and how human stressors may impact these patterns....

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Detalles Bibliográficos
Autores: Borrell Thió, Assumpció, Tort, Beatriu, Garcia-Garin, Odei, Genov, Tilen, Gonzalvo, Joan
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/221692
Acceso en línea:https://hdl.handle.net/2445/221692
Access Level:acceso abierto
Palabra clave:Mediterrània (Mar)
Cetacis
Nínxol ecològic
Mediterranean Sea
Cetacea
Niche (Ecology)
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spelling Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian SeaBorrell Thió, AssumpcióTort, BeatriuGarcia-Garin, OdeiGenov, TilenGonzalvo, JoanMediterrània (Mar)CetacisNínxol ecològicMediterranean SeaCetaceaNiche (Ecology)Studying the sympatric ecology of closely related marine top predator species is of interest both from an ecological and conservation standpoint, because it provides insights into ecosystem functioning, how such species avoid competitive exclusion, and how human stressors may impact these patterns. In this study, we examine the isotopic niche of three sympatric dolphin species that inhabit the eastern Ionian Sea: the common dolphin (Delphinus delphis), the striped dolphin (Stenella coeruleoalba), and the common bottlenose dolphin (Tursiops truncatus). We used carbon, nitrogen, and sulfur isotope ratios to construct three-dimensional isotope niches and calculate niche sizes and their overlaps among the three species to study interspecific competition for resources. Common dolphin niche overlapped with that of the striped dolphin by 77%, suggesting potential resource competition between these two species. The niche overlap between striped/common dolphins and bottlenose dolphins was much lower (47%). Large differences in isotopic ratios were found between the bottlenose dolphins of the Ionian Sea and those of a largely isolated population in the adjacent semienclosed Gulf of Ambracia, further corroborating the previously documented isolation between the two populations.Wiley2025202520242025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion14 p.application/pdfhttps://hdl.handle.net/2445/221692Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1111/mms.13196Marine Mammal Science, 2024, vol. 41, num.2, p. 1-14https://doi.org/10.1111/mms.13196cc-by-nc (c) Borrell Thió, Assumpció et al., 2024http://creativecommons.org/licenses/by-nc/3.0/es/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2216922026-05-29T05:05:01Z
dc.title.none.fl_str_mv Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian Sea
title Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian Sea
spellingShingle Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian Sea
Borrell Thió, Assumpció
Mediterrània (Mar)
Cetacis
Nínxol ecològic
Mediterranean Sea
Cetacea
Niche (Ecology)
title_short Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian Sea
title_full Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian Sea
title_fullStr Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian Sea
title_full_unstemmed Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian Sea
title_sort Stable isotope ratios indicate trophic niche overlap in three sympatric delphinid species in the Eastern Ionian Sea
dc.creator.none.fl_str_mv Borrell Thió, Assumpció
Tort, Beatriu
Garcia-Garin, Odei
Genov, Tilen
Gonzalvo, Joan
author Borrell Thió, Assumpció
author_facet Borrell Thió, Assumpció
Tort, Beatriu
Garcia-Garin, Odei
Genov, Tilen
Gonzalvo, Joan
author_role author
author2 Tort, Beatriu
Garcia-Garin, Odei
Genov, Tilen
Gonzalvo, Joan
author2_role author
author
author
author
dc.subject.none.fl_str_mv Mediterrània (Mar)
Cetacis
Nínxol ecològic
Mediterranean Sea
Cetacea
Niche (Ecology)
topic Mediterrània (Mar)
Cetacis
Nínxol ecològic
Mediterranean Sea
Cetacea
Niche (Ecology)
description Studying the sympatric ecology of closely related marine top predator species is of interest both from an ecological and conservation standpoint, because it provides insights into ecosystem functioning, how such species avoid competitive exclusion, and how human stressors may impact these patterns. In this study, we examine the isotopic niche of three sympatric dolphin species that inhabit the eastern Ionian Sea: the common dolphin (Delphinus delphis), the striped dolphin (Stenella coeruleoalba), and the common bottlenose dolphin (Tursiops truncatus). We used carbon, nitrogen, and sulfur isotope ratios to construct three-dimensional isotope niches and calculate niche sizes and their overlaps among the three species to study interspecific competition for resources. Common dolphin niche overlapped with that of the striped dolphin by 77%, suggesting potential resource competition between these two species. The niche overlap between striped/common dolphins and bottlenose dolphins was much lower (47%). Large differences in isotopic ratios were found between the bottlenose dolphins of the Ionian Sea and those of a largely isolated population in the adjacent semienclosed Gulf of Ambracia, further corroborating the previously documented isolation between the two populations.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/221692
url https://hdl.handle.net/2445/221692
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1111/mms.13196
Marine Mammal Science, 2024, vol. 41, num.2, p. 1-14
https://doi.org/10.1111/mms.13196
dc.rights.none.fl_str_mv cc-by-nc (c) Borrell Thió, Assumpció et al., 2024
http://creativecommons.org/licenses/by-nc/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc (c) Borrell Thió, Assumpció et al., 2024
http://creativecommons.org/licenses/by-nc/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14 p.
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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