Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adv...

Autores
Morgenthaler, Annick; Frere, Esteban; Raya Rey, Andrea Nélida; Torlaschi, Chantal; Cedrola, Paula; Tiberi, Emanuel; Lopez, Rita; Mendieta, Emanuel; Carranza, Maria Luisa; Acardi, Soraya; Collm, Natalia Sarita; Gandini, Patricia Alejandra; Millones, Ana
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The annual molt of Southern Rockhopper Penguins, Eudyptes chrysocome, usually takes place at their colonies after a pre-molting foraging trip. In 2016, an unusual number of Rockhopper Penguins was found molting, and in part subsequently dying, along the southernmost portion of the Argentine coast, far from the main colonies. To report the extent of this dispersion and mortality event, a survey was conducted between February and May 2016 along the southern Patagonian coast. A total of 1039 molting Rockhopper Penguins were reported. The mortality, mainly attributed to starvation, varied between 40 and 89%, according to sites. Furthermore, as adverse oceanographic conditions are known to affect prey availability and penguin’s survival, chlorophyll a concentrations (as a primary productivity index) and sea surface temperatures were analyzed at main foraging grounds. The results showed lower chlorophyll a and sea surface temperature values close to the main colonies during 2016 (compared to average 2003–2015). Although these values alone cannot explain such mortality (as similar low values already occurred in some of the previous year without inducing mortality events), our results support the hypothesis of a reduction in primary productivity close to the main colonies prior to the molt, inducing penguins to move towards more distant foraging grounds, which finally led them to molt later and away from their colonies. Although the oceanographic processes were not fully understood, this event highlights the serious effects that unusual conditions prior to molting can pose on the survival of this endangered penguin, in a context of climate variability.
Fil: Morgenthaler, Annick. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Frere, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Raya Rey, Andrea Nélida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina
Fil: Torlaschi, Chantal. Consejo Agrario Provincial. Delegación Puerto Deseado; Argentina
Fil: Cedrola, Paula. Consejo Agrario Provincial. Delegación Puerto Deseado; Argentina
Fil: Tiberi, Emanuel. Asociación Ambiente Sur; Argentina
Fil: Lopez, Rita. Dirección Agencia Ambiental Municipal; Argentina. Asociación Ambiente Sur; Argentina
Fil: Mendieta, Emanuel. Secretaría de Ambiente, Desarrollo Sostenible y Cambio Climático. Dirección General de Áreas Protegidas y Biodiversidad; Argentina
Fil: Carranza, Maria Luisa. Secretaría de Ambiente, Desarrollo Sostenible y Cambio Climático. Dirección General de Áreas Protegidas y Biodiversidad; Argentina
Fil: Acardi, Soraya. Secretaría de Ambiente, Desarrollo Sostenible y Cambio Climático. Dirección General de Áreas Protegidas y Biodiversidad; Argentina
Fil: Collm, Natalia Sarita. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gandini, Patricia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Millones, Ana. Universidad Nacional de la Patagonia Austral; Argentina
Materia
CLIMATE CHANGE
EUDYPTES CHRYSOCOME
OCEAN PRODUCTIVITY
SEA SURFACE TEMPERATURE
SEABIRD MORTALITY
SOUTHWEST ATLANTIC OCEAN
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:11336/94297
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/94297
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?Morgenthaler, AnnickFrere, EstebanRaya Rey, Andrea NélidaTorlaschi, ChantalCedrola, PaulaTiberi, EmanuelLopez, RitaMendieta, EmanuelCarranza, Maria LuisaAcardi, SorayaCollm, Natalia SaritaGandini, Patricia AlejandraMillones, AnaCLIMATE CHANGEEUDYPTES CHRYSOCOMEOCEAN PRODUCTIVITYSEA SURFACE TEMPERATURESEABIRD MORTALITYSOUTHWEST ATLANTIC OCEANhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The annual molt of Southern Rockhopper Penguins, Eudyptes chrysocome, usually takes place at their colonies after a pre-molting foraging trip. In 2016, an unusual number of Rockhopper Penguins was found molting, and in part subsequently dying, along the southernmost portion of the Argentine coast, far from the main colonies. To report the extent of this dispersion and mortality event, a survey was conducted between February and May 2016 along the southern Patagonian coast. A total of 1039 molting Rockhopper Penguins were reported. The mortality, mainly attributed to starvation, varied between 40 and 89%, according to sites. Furthermore, as adverse oceanographic conditions are known to affect prey availability and penguin’s survival, chlorophyll a concentrations (as a primary productivity index) and sea surface temperatures were analyzed at main foraging grounds. The results showed lower chlorophyll a and sea surface temperature values close to the main colonies during 2016 (compared to average 2003–2015). Although these values alone cannot explain such mortality (as similar low values already occurred in some of the previous year without inducing mortality events), our results support the hypothesis of a reduction in primary productivity close to the main colonies prior to the molt, inducing penguins to move towards more distant foraging grounds, which finally led them to molt later and away from their colonies. Although the oceanographic processes were not fully understood, this event highlights the serious effects that unusual conditions prior to molting can pose on the survival of this endangered penguin, in a context of climate variability.Fil: Morgenthaler, Annick. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Frere, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Raya Rey, Andrea Nélida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; ArgentinaFil: Torlaschi, Chantal. Consejo Agrario Provincial. Delegación Puerto Deseado; ArgentinaFil: Cedrola, Paula. Consejo Agrario Provincial. Delegación Puerto Deseado; ArgentinaFil: Tiberi, Emanuel. Asociación Ambiente Sur; ArgentinaFil: Lopez, Rita. Dirección Agencia Ambiental Municipal; Argentina. Asociación Ambiente Sur; ArgentinaFil: Mendieta, Emanuel. Secretaría de Ambiente, Desarrollo Sostenible y Cambio Climático. Dirección General de Áreas Protegidas y Biodiversidad; ArgentinaFil: Carranza, Maria Luisa. Secretaría de Ambiente, Desarrollo Sostenible y Cambio Climático. Dirección General de Áreas Protegidas y Biodiversidad; ArgentinaFil: Acardi, Soraya. Secretaría de Ambiente, Desarrollo Sostenible y Cambio Climático. Dirección General de Áreas Protegidas y Biodiversidad; ArgentinaFil: Collm, Natalia Sarita. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gandini, Patricia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Millones, Ana. Universidad Nacional de la Patagonia Austral; ArgentinaSpringer2018-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94297Morgenthaler, Annick; Frere, Esteban; Raya Rey, Andrea Nélida; Torlaschi, Chantal; Cedrola, Paula; et al.; Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?; Springer; Polar Biology; 41; 5; 5-2018; 1041-10470722-4060CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s00300-018-2264-yinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2264-yinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:48:49Zoai:ri.conicet.gov.ar:11336/94297instacron: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:34982025-09-03 09:48:49.393CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?
title Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?
spellingShingle Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?
Morgenthaler, Annick
CLIMATE CHANGE
EUDYPTES CHRYSOCOME
OCEAN PRODUCTIVITY
SEA SURFACE TEMPERATURE
SEABIRD MORTALITY
SOUTHWEST ATLANTIC OCEAN
title_short Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?
title_full Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?
title_fullStr Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?
title_full_unstemmed Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?
title_sort Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?
dc.creator.none.fl_str_mv Morgenthaler, Annick
Frere, Esteban
Raya Rey, Andrea Nélida
Torlaschi, Chantal
Cedrola, Paula
Tiberi, Emanuel
Lopez, Rita
Mendieta, Emanuel
Carranza, Maria Luisa
Acardi, Soraya
Collm, Natalia Sarita
Gandini, Patricia Alejandra
Millones, Ana
author Morgenthaler, Annick
author_facet Morgenthaler, Annick
Frere, Esteban
Raya Rey, Andrea Nélida
Torlaschi, Chantal
Cedrola, Paula
Tiberi, Emanuel
Lopez, Rita
Mendieta, Emanuel
Carranza, Maria Luisa
Acardi, Soraya
Collm, Natalia Sarita
Gandini, Patricia Alejandra
Millones, Ana
author_role author
author2 Frere, Esteban
Raya Rey, Andrea Nélida
Torlaschi, Chantal
Cedrola, Paula
Tiberi, Emanuel
Lopez, Rita
Mendieta, Emanuel
Carranza, Maria Luisa
Acardi, Soraya
Collm, Natalia Sarita
Gandini, Patricia Alejandra
Millones, Ana
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv CLIMATE CHANGE
EUDYPTES CHRYSOCOME
OCEAN PRODUCTIVITY
SEA SURFACE TEMPERATURE
SEABIRD MORTALITY
SOUTHWEST ATLANTIC OCEAN
topic CLIMATE CHANGE
EUDYPTES CHRYSOCOME
OCEAN PRODUCTIVITY
SEA SURFACE TEMPERATURE
SEABIRD MORTALITY
SOUTHWEST ATLANTIC OCEAN
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The annual molt of Southern Rockhopper Penguins, Eudyptes chrysocome, usually takes place at their colonies after a pre-molting foraging trip. In 2016, an unusual number of Rockhopper Penguins was found molting, and in part subsequently dying, along the southernmost portion of the Argentine coast, far from the main colonies. To report the extent of this dispersion and mortality event, a survey was conducted between February and May 2016 along the southern Patagonian coast. A total of 1039 molting Rockhopper Penguins were reported. The mortality, mainly attributed to starvation, varied between 40 and 89%, according to sites. Furthermore, as adverse oceanographic conditions are known to affect prey availability and penguin’s survival, chlorophyll a concentrations (as a primary productivity index) and sea surface temperatures were analyzed at main foraging grounds. The results showed lower chlorophyll a and sea surface temperature values close to the main colonies during 2016 (compared to average 2003–2015). Although these values alone cannot explain such mortality (as similar low values already occurred in some of the previous year without inducing mortality events), our results support the hypothesis of a reduction in primary productivity close to the main colonies prior to the molt, inducing penguins to move towards more distant foraging grounds, which finally led them to molt later and away from their colonies. Although the oceanographic processes were not fully understood, this event highlights the serious effects that unusual conditions prior to molting can pose on the survival of this endangered penguin, in a context of climate variability.
Fil: Morgenthaler, Annick. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Frere, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Raya Rey, Andrea Nélida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentina
Fil: Torlaschi, Chantal. Consejo Agrario Provincial. Delegación Puerto Deseado; Argentina
Fil: Cedrola, Paula. Consejo Agrario Provincial. Delegación Puerto Deseado; Argentina
Fil: Tiberi, Emanuel. Asociación Ambiente Sur; Argentina
Fil: Lopez, Rita. Dirección Agencia Ambiental Municipal; Argentina. Asociación Ambiente Sur; Argentina
Fil: Mendieta, Emanuel. Secretaría de Ambiente, Desarrollo Sostenible y Cambio Climático. Dirección General de Áreas Protegidas y Biodiversidad; Argentina
Fil: Carranza, Maria Luisa. Secretaría de Ambiente, Desarrollo Sostenible y Cambio Climático. Dirección General de Áreas Protegidas y Biodiversidad; Argentina
Fil: Acardi, Soraya. Secretaría de Ambiente, Desarrollo Sostenible y Cambio Climático. Dirección General de Áreas Protegidas y Biodiversidad; Argentina
Fil: Collm, Natalia Sarita. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gandini, Patricia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Millones, Ana. Universidad Nacional de la Patagonia Austral; Argentina
description The annual molt of Southern Rockhopper Penguins, Eudyptes chrysocome, usually takes place at their colonies after a pre-molting foraging trip. In 2016, an unusual number of Rockhopper Penguins was found molting, and in part subsequently dying, along the southernmost portion of the Argentine coast, far from the main colonies. To report the extent of this dispersion and mortality event, a survey was conducted between February and May 2016 along the southern Patagonian coast. A total of 1039 molting Rockhopper Penguins were reported. The mortality, mainly attributed to starvation, varied between 40 and 89%, according to sites. Furthermore, as adverse oceanographic conditions are known to affect prey availability and penguin’s survival, chlorophyll a concentrations (as a primary productivity index) and sea surface temperatures were analyzed at main foraging grounds. The results showed lower chlorophyll a and sea surface temperature values close to the main colonies during 2016 (compared to average 2003–2015). Although these values alone cannot explain such mortality (as similar low values already occurred in some of the previous year without inducing mortality events), our results support the hypothesis of a reduction in primary productivity close to the main colonies prior to the molt, inducing penguins to move towards more distant foraging grounds, which finally led them to molt later and away from their colonies. Although the oceanographic processes were not fully understood, this event highlights the serious effects that unusual conditions prior to molting can pose on the survival of this endangered penguin, in a context of climate variability.
publishDate 2018
dc.date.none.fl_str_mv 2018-05
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/11336/94297
Morgenthaler, Annick; Frere, Esteban; Raya Rey, Andrea Nélida; Torlaschi, Chantal; Cedrola, Paula; et al.; Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?; Springer; Polar Biology; 41; 5; 5-2018; 1041-1047
0722-4060
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94297
identifier_str_mv Morgenthaler, Annick; Frere, Esteban; Raya Rey, Andrea Nélida; Torlaschi, Chantal; Cedrola, Paula; et al.; Unusual number of Southern Rockhopper Penguins, Eudyptes chrysocome, molting and dying along the Southern Patagonian coast of Argentina: pre-molting dispersion event related to adverse oceanographic conditions?; Springer; Polar Biology; 41; 5; 5-2018; 1041-1047
0722-4060
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s00300-018-2264-y
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-018-2264-y
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
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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reponame_str CONICET Digital (CONICET)
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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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