Population trends of penguins in the French Southern Territories
International audience Penguins are important top consumers in marine food webs and are one of the most threatened bird families, especially by climate change and food web alterations by marine fisheries. Yet, long-term population trends are lacking or are uncertain for many populations. Seven speci...
Published in: | Polar Biology |
---|---|
Main Authors: | , , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
|
Subjects: | |
Online Access: | https://hal.science/hal-02864701 https://doi.org/10.1007/s00300-020-02691-6 |
id |
ftunivrochelle:oai:HAL:hal-02864701v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivrochelle:oai:HAL:hal-02864701v1 2024-02-11T09:54:41+01:00 Population trends of penguins in the French Southern Territories Barbraud, Christophe Delord, Karine Bost, Charles Chaigne, Adrien Marteau, Cédric Weimerskirch, Henri Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Réserve Naturelle Nationale des Terres Australes Françaises 2020 https://hal.science/hal-02864701 https://doi.org/10.1007/s00300-020-02691-6 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-020-02691-6 hal-02864701 https://hal.science/hal-02864701 doi:10.1007/s00300-020-02691-6 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-02864701 Polar Biology, 2020, 43, pp.835-850. ⟨10.1007/s00300-020-02691-6⟩ Crozet Kerguelen Saint-Paul Amsterdam Terre Adélie/Adelie Land Monitoring Density dependence [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2020 ftunivrochelle https://doi.org/10.1007/s00300-020-02691-6 2024-01-23T23:34:54Z International audience Penguins are important top consumers in marine food webs and are one of the most threatened bird families, especially by climate change and food web alterations by marine fisheries. Yet, long-term population trends are lacking or are uncertain for many populations. Seven species of penguins breeding at the French Southern Territories in the southern Indian Ocean on the Crozet, Kerguelen, Saint-Paul–Amsterdam archipelagos and in Terre Adélie/Adelie Land, Antarctica are monitored regularly. This monitoring started in the early 1950s and most populations have been surveyed during the past four years, allowing assessments of population trends. King penguins increased at nearly all breeding sites within the Crozet and Kerguelen archipelagos. Emperor penguins have decreased at Terre Adélie/Adelie Land, with a partial recovery of the colony during the 2010s. Gentoo penguin populations at Crozet and Kerguelen are highly variable but stable. Adélie penguins have been increasing in Terre Adélie/Adelie Land. The trends in eastern rockhopper penguins vary between colonies and archipelagos. Northern rockhopper penguins have continuously decreased in numbers at Amsterdam Island, but appear to have increased at the nearby Saint-Paul Island. Macaroni penguins have first increased and then stabilized since the 2000s at Kerguelen and are stable at the Crozet Islands. Overall, most penguin populations breeding in the French Southern Territories increased or were stable over the past 30–60 years, with the exception of the northern rockhopper penguin, king and gentoo penguins on Crozet and the emperor penguin. The ecological reasons for these trends are poorly understood and require further investigation. Article in Journal/Newspaper Adelie Land Amsterdam Island Antarc* Antarctica Crozet Islands Emperor penguins Gentoo penguin King Penguins Polar Biology Rockhopper penguin Saint-Paul Island HAL - Université de La Rochelle Kerguelen Indian Terre Adélie ENVELOPE(139.000,139.000,-67.000,-67.000) Terre-Adélie ENVELOPE(138.991,138.991,-59.999,-59.999) Saint-Paul ENVELOPE(-57.715,-57.715,51.467,51.467) Polar Biology 43 7 835 850 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
Crozet Kerguelen Saint-Paul Amsterdam Terre Adélie/Adelie Land Monitoring Density dependence [SDE]Environmental Sciences |
spellingShingle |
Crozet Kerguelen Saint-Paul Amsterdam Terre Adélie/Adelie Land Monitoring Density dependence [SDE]Environmental Sciences Barbraud, Christophe Delord, Karine Bost, Charles Chaigne, Adrien Marteau, Cédric Weimerskirch, Henri Population trends of penguins in the French Southern Territories |
topic_facet |
Crozet Kerguelen Saint-Paul Amsterdam Terre Adélie/Adelie Land Monitoring Density dependence [SDE]Environmental Sciences |
description |
International audience Penguins are important top consumers in marine food webs and are one of the most threatened bird families, especially by climate change and food web alterations by marine fisheries. Yet, long-term population trends are lacking or are uncertain for many populations. Seven species of penguins breeding at the French Southern Territories in the southern Indian Ocean on the Crozet, Kerguelen, Saint-Paul–Amsterdam archipelagos and in Terre Adélie/Adelie Land, Antarctica are monitored regularly. This monitoring started in the early 1950s and most populations have been surveyed during the past four years, allowing assessments of population trends. King penguins increased at nearly all breeding sites within the Crozet and Kerguelen archipelagos. Emperor penguins have decreased at Terre Adélie/Adelie Land, with a partial recovery of the colony during the 2010s. Gentoo penguin populations at Crozet and Kerguelen are highly variable but stable. Adélie penguins have been increasing in Terre Adélie/Adelie Land. The trends in eastern rockhopper penguins vary between colonies and archipelagos. Northern rockhopper penguins have continuously decreased in numbers at Amsterdam Island, but appear to have increased at the nearby Saint-Paul Island. Macaroni penguins have first increased and then stabilized since the 2000s at Kerguelen and are stable at the Crozet Islands. Overall, most penguin populations breeding in the French Southern Territories increased or were stable over the past 30–60 years, with the exception of the northern rockhopper penguin, king and gentoo penguins on Crozet and the emperor penguin. The ecological reasons for these trends are poorly understood and require further investigation. |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Réserve Naturelle Nationale des Terres Australes Françaises |
format |
Article in Journal/Newspaper |
author |
Barbraud, Christophe Delord, Karine Bost, Charles Chaigne, Adrien Marteau, Cédric Weimerskirch, Henri |
author_facet |
Barbraud, Christophe Delord, Karine Bost, Charles Chaigne, Adrien Marteau, Cédric Weimerskirch, Henri |
author_sort |
Barbraud, Christophe |
title |
Population trends of penguins in the French Southern Territories |
title_short |
Population trends of penguins in the French Southern Territories |
title_full |
Population trends of penguins in the French Southern Territories |
title_fullStr |
Population trends of penguins in the French Southern Territories |
title_full_unstemmed |
Population trends of penguins in the French Southern Territories |
title_sort |
population trends of penguins in the french southern territories |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02864701 https://doi.org/10.1007/s00300-020-02691-6 |
long_lat |
ENVELOPE(139.000,139.000,-67.000,-67.000) ENVELOPE(138.991,138.991,-59.999,-59.999) ENVELOPE(-57.715,-57.715,51.467,51.467) |
geographic |
Kerguelen Indian Terre Adélie Terre-Adélie Saint-Paul |
geographic_facet |
Kerguelen Indian Terre Adélie Terre-Adélie Saint-Paul |
genre |
Adelie Land Amsterdam Island Antarc* Antarctica Crozet Islands Emperor penguins Gentoo penguin King Penguins Polar Biology Rockhopper penguin Saint-Paul Island |
genre_facet |
Adelie Land Amsterdam Island Antarc* Antarctica Crozet Islands Emperor penguins Gentoo penguin King Penguins Polar Biology Rockhopper penguin Saint-Paul Island |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-02864701 Polar Biology, 2020, 43, pp.835-850. ⟨10.1007/s00300-020-02691-6⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-020-02691-6 hal-02864701 https://hal.science/hal-02864701 doi:10.1007/s00300-020-02691-6 |
op_doi |
https://doi.org/10.1007/s00300-020-02691-6 |
container_title |
Polar Biology |
container_volume |
43 |
container_issue |
7 |
container_start_page |
835 |
op_container_end_page |
850 |
_version_ |
1790599231803752448 |