Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas
Sea ice is crucial for breeding in true Antarctic pinnipeds. Although critical to interpret and mitigate the effects of extreme climatic events on polar species, knowledge of the effects of strong sea-ice anomalies on the reproductive activity of true Antarctic pinnipeds is scarce. Underwater vocali...
Published in: | Frontiers in Ecology and the Environment |
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Online Access: | https://epic.awi.de/id/eprint/58091/ https://doi.org/10.1002/fee.2622 https://hdl.handle.net/10013/epic.a8959429-82ca-410e-9d54-e72fcd76559a |
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ftawi:oai:epic.awi.de:58091 2023-11-12T04:04:42+01:00 Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas Roca, Irene T Kaleschke, Lars Van Opzeeland, Ilse 2023-06 https://epic.awi.de/id/eprint/58091/ https://doi.org/10.1002/fee.2622 https://hdl.handle.net/10013/epic.a8959429-82ca-410e-9d54-e72fcd76559a unknown Wiley Roca, I. T. , Kaleschke, L. orcid:0000-0001-7086-3299 and Van Opzeeland, I. (2023) Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas , Frontiers in Ecology and the Environment, 21 (5), pp. 227-233 . doi:10.1002/fee.2622 <https://doi.org/10.1002/fee.2622> , hdl:10013/epic.a8959429-82ca-410e-9d54-e72fcd76559a EPIC3Frontiers in Ecology and the Environment, Wiley, 21(5), pp. 227-233, ISSN: 1540-9295 Article peerRev 2023 ftawi https://doi.org/10.1002/fee.2622 2023-10-30T00:23:13Z Sea ice is crucial for breeding in true Antarctic pinnipeds. Although critical to interpret and mitigate the effects of extreme climatic events on polar species, knowledge of the effects of strong sea-ice anomalies on the reproductive activity of true Antarctic pinnipeds is scarce. Underwater vocalizations in these species play a key role in reproduction and function as indicators for presence and breeding onset. Using 8 years of recordings, we quantified the effect of sea-ice concentration and drift on the acoustic presence probability of four pinniped species in their breeding areas. In all four species, acoustic activity timing was constant across years, but decreased when sea-ice cover conditions were <10%, suggesting that individuals may fail to anticipate rapid changes in sea-ice cover. In the species’ traditional breeding areas, extreme and regular negative anomalies in early austral-summer sea ice could affect long-term reproductive success. Our findings underscore the urgent need for a better understanding of climate-driven changes in high-fidelity breeding areas to mitigate current and future anthropogenic pressures, and to sustain the integrity and functionality of the Southern Ocean's ecosystems. Article in Journal/Newspaper Antarc* Antarctic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Frontiers in Ecology and the Environment 21 5 227 233 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Sea ice is crucial for breeding in true Antarctic pinnipeds. Although critical to interpret and mitigate the effects of extreme climatic events on polar species, knowledge of the effects of strong sea-ice anomalies on the reproductive activity of true Antarctic pinnipeds is scarce. Underwater vocalizations in these species play a key role in reproduction and function as indicators for presence and breeding onset. Using 8 years of recordings, we quantified the effect of sea-ice concentration and drift on the acoustic presence probability of four pinniped species in their breeding areas. In all four species, acoustic activity timing was constant across years, but decreased when sea-ice cover conditions were <10%, suggesting that individuals may fail to anticipate rapid changes in sea-ice cover. In the species’ traditional breeding areas, extreme and regular negative anomalies in early austral-summer sea ice could affect long-term reproductive success. Our findings underscore the urgent need for a better understanding of climate-driven changes in high-fidelity breeding areas to mitigate current and future anthropogenic pressures, and to sustain the integrity and functionality of the Southern Ocean's ecosystems. |
format |
Article in Journal/Newspaper |
author |
Roca, Irene T Kaleschke, Lars Van Opzeeland, Ilse |
spellingShingle |
Roca, Irene T Kaleschke, Lars Van Opzeeland, Ilse Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas |
author_facet |
Roca, Irene T Kaleschke, Lars Van Opzeeland, Ilse |
author_sort |
Roca, Irene T |
title |
Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas |
title_short |
Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas |
title_full |
Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas |
title_fullStr |
Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas |
title_full_unstemmed |
Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas |
title_sort |
sea‐ice anomalies affect the acoustic presence of antarctic pinnipeds in breeding areas |
publisher |
Wiley |
publishDate |
2023 |
url |
https://epic.awi.de/id/eprint/58091/ https://doi.org/10.1002/fee.2622 https://hdl.handle.net/10013/epic.a8959429-82ca-410e-9d54-e72fcd76559a |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
EPIC3Frontiers in Ecology and the Environment, Wiley, 21(5), pp. 227-233, ISSN: 1540-9295 |
op_relation |
Roca, I. T. , Kaleschke, L. orcid:0000-0001-7086-3299 and Van Opzeeland, I. (2023) Sea‐ice anomalies affect the acoustic presence of Antarctic pinnipeds in breeding areas , Frontiers in Ecology and the Environment, 21 (5), pp. 227-233 . doi:10.1002/fee.2622 <https://doi.org/10.1002/fee.2622> , hdl:10013/epic.a8959429-82ca-410e-9d54-e72fcd76559a |
op_doi |
https://doi.org/10.1002/fee.2622 |
container_title |
Frontiers in Ecology and the Environment |
container_volume |
21 |
container_issue |
5 |
container_start_page |
227 |
op_container_end_page |
233 |
_version_ |
1782341740840091648 |