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Contrasting environmental conditions precluded lower availability of Antarctic krill affecting breeding chinstrap penguins in the Antarctic Peninsula
Dramatic decreases of chinstrap penguin populations across the Antarctic Peninsula (AP) are thought to be influenced by climate-driven changes affecting its main prey, the Antarctic krill, however, empirical evidence supporting such hypotheses are scarce. By coupling data on breeding chinstrap pengu...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10066220/ https://www.ncbi.nlm.nih.gov/pubmed/37002269 http://dx.doi.org/10.1038/s41598-023-32352-7 |
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author | Salmerón, Nuria Belle, Solenne Cruz, Francisco Santa Alegria, Nicolás Finger, Júlia Victória Grohmann Corá, Denyelle Hennayra Petry, Maria Virginia Hernández, Cristina Cárdenas, César A. Krüger, Lucas |
author_facet | Salmerón, Nuria Belle, Solenne Cruz, Francisco Santa Alegria, Nicolás Finger, Júlia Victória Grohmann Corá, Denyelle Hennayra Petry, Maria Virginia Hernández, Cristina Cárdenas, César A. Krüger, Lucas |
author_sort | Salmerón, Nuria |
collection | PubMed |
description | Dramatic decreases of chinstrap penguin populations across the Antarctic Peninsula (AP) are thought to be influenced by climate-driven changes affecting its main prey, the Antarctic krill, however, empirical evidence supporting such hypotheses are scarce. By coupling data on breeding chinstrap penguins, environmental remote sensing and estimates of krill acoustic density, we were able to demonstrate that penguins substantially increased their foraging effort in a year of low krill availability, with consequent reduction in breeding success. A winter of low sea ice cover followed by a summer/spring with stronger wind and lower marine productivity explained the lower and deeper krill availability. Our results highlight the importance of environmental variability on penguin populations, as variability is expected to increase under climate change, affecting foraging behaviour responses. |
format | Online Article Text |
id | pubmed-10066220 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-100662202023-04-02 Contrasting environmental conditions precluded lower availability of Antarctic krill affecting breeding chinstrap penguins in the Antarctic Peninsula Salmerón, Nuria Belle, Solenne Cruz, Francisco Santa Alegria, Nicolás Finger, Júlia Victória Grohmann Corá, Denyelle Hennayra Petry, Maria Virginia Hernández, Cristina Cárdenas, César A. Krüger, Lucas Sci Rep Article Dramatic decreases of chinstrap penguin populations across the Antarctic Peninsula (AP) are thought to be influenced by climate-driven changes affecting its main prey, the Antarctic krill, however, empirical evidence supporting such hypotheses are scarce. By coupling data on breeding chinstrap penguins, environmental remote sensing and estimates of krill acoustic density, we were able to demonstrate that penguins substantially increased their foraging effort in a year of low krill availability, with consequent reduction in breeding success. A winter of low sea ice cover followed by a summer/spring with stronger wind and lower marine productivity explained the lower and deeper krill availability. Our results highlight the importance of environmental variability on penguin populations, as variability is expected to increase under climate change, affecting foraging behaviour responses. Nature Publishing Group UK 2023-03-31 /pmc/articles/PMC10066220/ /pubmed/37002269 http://dx.doi.org/10.1038/s41598-023-32352-7 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Salmerón, Nuria Belle, Solenne Cruz, Francisco Santa Alegria, Nicolás Finger, Júlia Victória Grohmann Corá, Denyelle Hennayra Petry, Maria Virginia Hernández, Cristina Cárdenas, César A. Krüger, Lucas Contrasting environmental conditions precluded lower availability of Antarctic krill affecting breeding chinstrap penguins in the Antarctic Peninsula |
title | Contrasting environmental conditions precluded lower availability of Antarctic krill affecting breeding chinstrap penguins in the Antarctic Peninsula |
title_full | Contrasting environmental conditions precluded lower availability of Antarctic krill affecting breeding chinstrap penguins in the Antarctic Peninsula |
title_fullStr | Contrasting environmental conditions precluded lower availability of Antarctic krill affecting breeding chinstrap penguins in the Antarctic Peninsula |
title_full_unstemmed | Contrasting environmental conditions precluded lower availability of Antarctic krill affecting breeding chinstrap penguins in the Antarctic Peninsula |
title_short | Contrasting environmental conditions precluded lower availability of Antarctic krill affecting breeding chinstrap penguins in the Antarctic Peninsula |
title_sort | contrasting environmental conditions precluded lower availability of antarctic krill affecting breeding chinstrap penguins in the antarctic peninsula |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10066220/ https://www.ncbi.nlm.nih.gov/pubmed/37002269 http://dx.doi.org/10.1038/s41598-023-32352-7 |
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