Recent decrease in gentoo penguin populations at Iles Kerguelen

International audience Several sub-Antarctic penguin populations have exhibited decreasing trends in the last 5–20 years. At Iles Kerguelen, the gentoo penguin (Pygoscelis papua) has decreased by approximately 30% over the last 15 years. This decrease is likely to be related to reduced food availabi...

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Bibliographic Details
Published in:Antarctic Science
Main Authors: Lescroel, Amélie, Bost, Charles-André
Other Authors: Centre d'Études Biologiques de Chizé (CEBC), Centre National de la Recherche Scientifique (CNRS)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2006
Subjects:
global warming
population trend
Pygoscelis papua
Southern Ocean
sub-Antarctic
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
[SDE.ES]Environmental Sciences/Environmental and Society
Antarctic
Kerguelen
Antarc*
Antarctic Science
Gentoo penguin
Online Access:https://hal.science/hal-00184639
https://doi.org/10.1017/S0954102006000198
Description
Summary:International audience Several sub-Antarctic penguin populations have exhibited decreasing trends in the last 5–20 years. At Iles Kerguelen, the gentoo penguin (Pygoscelis papua) has decreased by approximately 30% over the last 15 years. This decrease is likely to be related to reduced food availability for this coastal species. We discuss this decrease with regard to the impact of overfishing and to the potential effects of climate changes on marine food webs.

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