Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range

Variability in long‐distance migration strategies is still poorly understood due to the fact that individuals are often tracked from a single colony/population. Transoceanic migrations of Scopoli's shearwaters (Calonectris diomedea) across the Strait of Gibraltar (SoG) have been tracked from se...

ver descrição completa

Detalhes bibliográficos
Autor: Ramos i Garcia, Raül
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Recursos: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:2445/158222
Acesso em linha:https://hdl.handle.net/2445/158222
Access Level:acceso abierto
Palavra-chave:Migració d'ocells
Ocells marins
Mediterrània (Mar)
Fenologia
Birds migration
Sea birds
Mediterranean Sea
Phenology
id ES_cfc5cbb7f2c1d6b73b2cb5908fa08a92
oai_identifier_str oai:recercat.cat:2445/158222
network_acronym_str ES
network_name_str España
repository_id_str
spelling Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding rangeRamos i Garcia, RaülMigració d'ocellsOcells marinsMediterrània (Mar)FenologiaBirds migrationSea birdsMediterranean SeaPhenologyVariability in long‐distance migration strategies is still poorly understood due to the fact that individuals are often tracked from a single colony/population. Transoceanic migrations of Scopoli's shearwaters (Calonectris diomedea) across the Strait of Gibraltar (SoG) have been tracked from several breeding colonies isolatedly, and factors related to the variability in phenological schedules among different populations remain, therefore, not well‐understood. Using light‐level geolocator data, I examined the autumn (postbreeding) and spring (prebreeding) migratory passage dates through SoG of four populations of Scopoli's shearwater spread along the longitudinal breeding range of the species. Additionally, I also estimated the at‐sea activity patterns (from immersion data) during both migratory passages, as well as the body size (from morphometric data) of the individuals of these populations. On average, Scopoli's shearwaters leave the Mediterranean (cross SoG) on 31 October ± 1.8 days on its autumn migrations and return on 03 March ± 1.6 days on its spring migrations. At the population level, there was a clear gradient in the timing of crossing SoG: birds from the westernmost populations (Murcia, SE Spain) were the first ones in leaving the Mediterranean while easternmost breeders (Paximada, Crete) were the last ones. In spring, only birds from the largest breeding population (Zembra, Tunisia) seemed to advance their return and crossed SoG significantly earlier than birds tracked at the remaining populations. In both passages, shearwaters from central and eastern populations spent more time flying than their conspecifics from the western Mediterranean. Scopoli's shearwater populations display a differential phenology and behavior in their migratory passages through SoG. The longitudinal gradient in body size already reported for the species could be an evolutionary response to an obvious trade-off between sharing common wintering grounds in the Atlantic Ocean and the temporal constraints of restoring physiological condition in those grounds.John Wiley & Sons2020202020192020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion12 p.application/pdfapplication/pdfhttps://hdl.handle.net/2445/158222Articles 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/10.1002/ece3.5079Ecology and Evolution, 2019, vol. 9, p. 4760-4771https://doi.org/10.1002/ece3.5079http://hdl.handle.net/2445/128784info:eu-repo/grantAgreement/EC/FP7/618841cc-by (c) Ramos i Garcia, Raül, 2019http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1582222026-05-29T05:05:01Z
dc.title.none.fl_str_mv Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range
title Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range
spellingShingle Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range
Ramos i Garcia, Raül
Migració d'ocells
Ocells marins
Mediterrània (Mar)
Fenologia
Birds migration
Sea birds
Mediterranean Sea
Phenology
title_short Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range
title_full Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range
title_fullStr Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range
title_full_unstemmed Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range
title_sort Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range
dc.creator.none.fl_str_mv Ramos i Garcia, Raül
author Ramos i Garcia, Raül
author_facet Ramos i Garcia, Raül
author_role author
dc.subject.none.fl_str_mv Migració d'ocells
Ocells marins
Mediterrània (Mar)
Fenologia
Birds migration
Sea birds
Mediterranean Sea
Phenology
topic Migració d'ocells
Ocells marins
Mediterrània (Mar)
Fenologia
Birds migration
Sea birds
Mediterranean Sea
Phenology
description Variability in long‐distance migration strategies is still poorly understood due to the fact that individuals are often tracked from a single colony/population. Transoceanic migrations of Scopoli's shearwaters (Calonectris diomedea) across the Strait of Gibraltar (SoG) have been tracked from several breeding colonies isolatedly, and factors related to the variability in phenological schedules among different populations remain, therefore, not well‐understood. Using light‐level geolocator data, I examined the autumn (postbreeding) and spring (prebreeding) migratory passage dates through SoG of four populations of Scopoli's shearwater spread along the longitudinal breeding range of the species. Additionally, I also estimated the at‐sea activity patterns (from immersion data) during both migratory passages, as well as the body size (from morphometric data) of the individuals of these populations. On average, Scopoli's shearwaters leave the Mediterranean (cross SoG) on 31 October ± 1.8 days on its autumn migrations and return on 03 March ± 1.6 days on its spring migrations. At the population level, there was a clear gradient in the timing of crossing SoG: birds from the westernmost populations (Murcia, SE Spain) were the first ones in leaving the Mediterranean while easternmost breeders (Paximada, Crete) were the last ones. In spring, only birds from the largest breeding population (Zembra, Tunisia) seemed to advance their return and crossed SoG significantly earlier than birds tracked at the remaining populations. In both passages, shearwaters from central and eastern populations spent more time flying than their conspecifics from the western Mediterranean. Scopoli's shearwater populations display a differential phenology and behavior in their migratory passages through SoG. The longitudinal gradient in body size already reported for the species could be an evolutionary response to an obvious trade-off between sharing common wintering grounds in the Atlantic Ocean and the temporal constraints of restoring physiological condition in those grounds.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2020
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/2445/158222
url https://hdl.handle.net/2445/158222
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/10.1002/ece3.5079
Ecology and Evolution, 2019, vol. 9, p. 4760-4771
https://doi.org/10.1002/ece3.5079
http://hdl.handle.net/2445/128784
info:eu-repo/grantAgreement/EC/FP7/618841
dc.rights.none.fl_str_mv cc-by (c) Ramos i Garcia, Raül, 2019
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Ramos i Garcia, Raül, 2019
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 12 p.
application/pdf
application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
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
_version_ 1869420113425334272
score 15,81155

Registos relacionados