A global population assessment of the Chinstrap penguin (Pygoscelis antarctica)
Using satellite imagery, drone imagery, and ground counts, we have assembled the first comprehensive global population assessment of Chinstrap penguins (Pygoscelis antarctica) at 3.42 (95th-percentile CI: [2.98, 4.00]) million breeding pairs across 375 extant colonies. Twenty-three previously known...
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ftpubmed:oai:pubmedcentral.nih.gov:7655846 2023-05-15T13:57:28+02:00 A global population assessment of the Chinstrap penguin (Pygoscelis antarctica) Strycker, Noah Wethington, Michael Borowicz, Alex Forrest, Steve Witharana, Chandi Hart, Tom Lynch, Heather J. 2020-11-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7655846/ https://doi.org/10.1038/s41598-020-76479-3 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7655846/ http://dx.doi.org/10.1038/s41598-020-76479-3 © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Sci Rep Article Text 2020 ftpubmed https://doi.org/10.1038/s41598-020-76479-3 2020-11-15T01:49:52Z Using satellite imagery, drone imagery, and ground counts, we have assembled the first comprehensive global population assessment of Chinstrap penguins (Pygoscelis antarctica) at 3.42 (95th-percentile CI: [2.98, 4.00]) million breeding pairs across 375 extant colonies. Twenty-three previously known Chinstrap penguin colonies are found to be absent or extirpated. We identify five new colonies, and 21 additional colonies previously unreported and likely missed by previous surveys. Limited or imprecise historical data prohibit our assessment of population change at 35% of all Chinstrap penguin colonies. Of colonies for which a comparison can be made to historical counts in the 1980s, 45% have probably or certainly declined and 18% have probably or certainly increased. Several large colonies in the South Sandwich Islands, where conditions apparently remain favorable for Chinstrap penguins, cannot be assessed against a historical benchmark. Our population assessment provides a detailed baseline for quantifying future changes in Chinstrap penguin abundance, sheds new light on the environmental drivers of Chinstrap penguin population dynamics in Antarctica, and contributes to ongoing monitoring and conservation efforts at a time of climate change and concerns over declining krill abundance in the Southern Ocean. Text Antarc* Antarctica Chinstrap penguin Pygoscelis antarctica South Sandwich Islands Southern Ocean PubMed Central (PMC) Sandwich Islands South Sandwich Islands Southern Ocean Scientific Reports 10 1 |
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Article Strycker, Noah Wethington, Michael Borowicz, Alex Forrest, Steve Witharana, Chandi Hart, Tom Lynch, Heather J. A global population assessment of the Chinstrap penguin (Pygoscelis antarctica) |
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Using satellite imagery, drone imagery, and ground counts, we have assembled the first comprehensive global population assessment of Chinstrap penguins (Pygoscelis antarctica) at 3.42 (95th-percentile CI: [2.98, 4.00]) million breeding pairs across 375 extant colonies. Twenty-three previously known Chinstrap penguin colonies are found to be absent or extirpated. We identify five new colonies, and 21 additional colonies previously unreported and likely missed by previous surveys. Limited or imprecise historical data prohibit our assessment of population change at 35% of all Chinstrap penguin colonies. Of colonies for which a comparison can be made to historical counts in the 1980s, 45% have probably or certainly declined and 18% have probably or certainly increased. Several large colonies in the South Sandwich Islands, where conditions apparently remain favorable for Chinstrap penguins, cannot be assessed against a historical benchmark. Our population assessment provides a detailed baseline for quantifying future changes in Chinstrap penguin abundance, sheds new light on the environmental drivers of Chinstrap penguin population dynamics in Antarctica, and contributes to ongoing monitoring and conservation efforts at a time of climate change and concerns over declining krill abundance in the Southern Ocean. |
format |
Text |
author |
Strycker, Noah Wethington, Michael Borowicz, Alex Forrest, Steve Witharana, Chandi Hart, Tom Lynch, Heather J. |
author_facet |
Strycker, Noah Wethington, Michael Borowicz, Alex Forrest, Steve Witharana, Chandi Hart, Tom Lynch, Heather J. |
author_sort |
Strycker, Noah |
title |
A global population assessment of the Chinstrap penguin (Pygoscelis antarctica) |
title_short |
A global population assessment of the Chinstrap penguin (Pygoscelis antarctica) |
title_full |
A global population assessment of the Chinstrap penguin (Pygoscelis antarctica) |
title_fullStr |
A global population assessment of the Chinstrap penguin (Pygoscelis antarctica) |
title_full_unstemmed |
A global population assessment of the Chinstrap penguin (Pygoscelis antarctica) |
title_sort |
global population assessment of the chinstrap penguin (pygoscelis antarctica) |
publisher |
Nature Publishing Group UK |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7655846/ https://doi.org/10.1038/s41598-020-76479-3 |
geographic |
Sandwich Islands South Sandwich Islands Southern Ocean |
geographic_facet |
Sandwich Islands South Sandwich Islands Southern Ocean |
genre |
Antarc* Antarctica Chinstrap penguin Pygoscelis antarctica South Sandwich Islands Southern Ocean |
genre_facet |
Antarc* Antarctica Chinstrap penguin Pygoscelis antarctica South Sandwich Islands Southern Ocean |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7655846/ http://dx.doi.org/10.1038/s41598-020-76479-3 |
op_rights |
© The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-020-76479-3 |
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Scientific Reports |
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10 |
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