A global population assessment of the Chinstrap penguin (Pygoscelis antarctica)
Abstract 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 previo...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer Science and Business Media LLC
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1038/s41598-020-76479-3 http://www.nature.com/articles/s41598-020-76479-3.pdf http://www.nature.com/articles/s41598-020-76479-3 |
id |
crspringernat:10.1038/s41598-020-76479-3 |
---|---|
record_format |
openpolar |
spelling |
crspringernat:10.1038/s41598-020-76479-3 2023-05-15T14:11:19+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. Pew Charitable Trusts 2020 http://dx.doi.org/10.1038/s41598-020-76479-3 http://www.nature.com/articles/s41598-020-76479-3.pdf http://www.nature.com/articles/s41598-020-76479-3 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 10, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2020 crspringernat https://doi.org/10.1038/s41598-020-76479-3 2022-01-04T11:41:05Z Abstract 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. Article in Journal/Newspaper Antarc* Antarctica Chinstrap penguin Pygoscelis antarctica South Sandwich Islands Southern Ocean Springer Nature (via Crossref) Southern Ocean Sandwich Islands South Sandwich Islands Scientific Reports 10 1 |
institution |
Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary 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) |
topic_facet |
Multidisciplinary |
description |
Abstract 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. |
author2 |
Pew Charitable Trusts |
format |
Article in Journal/Newspaper |
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 |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1038/s41598-020-76479-3 http://www.nature.com/articles/s41598-020-76479-3.pdf http://www.nature.com/articles/s41598-020-76479-3 |
geographic |
Southern Ocean Sandwich Islands South Sandwich Islands |
geographic_facet |
Southern Ocean Sandwich Islands South Sandwich Islands |
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 |
Scientific Reports volume 10, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-020-76479-3 |
container_title |
Scientific Reports |
container_volume |
10 |
container_issue |
1 |
_version_ |
1766283454701371392 |