The diving behaviour of little penguins in Western Australia predisposes them to risk of injury by watercraft
International audience The most western little penguin colony globally, and the most northern in Western Australia (WA) is found on Penguin Island, WA. The penguins use coastal bays that are also used extensively by recreational watercraft. These penguins have been found to either dive predominantly...
Published in: | Aquatic Conservation: Marine and Freshwater Ecosystems |
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Online Access: | https://hal.science/hal-02462199 https://doi.org/10.1002/aqc.3272 |
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ftunivrochelle:oai:HAL:hal-02462199v1 2024-02-11T10:07:46+01:00 The diving behaviour of little penguins in Western Australia predisposes them to risk of injury by watercraft Cannell, Belinda Ropert‐coudert, Yan Radford, Ben Kato, Akiko The University of Western Australia Oceans Institute and School of Biological Sciences Australia The University of Western Australia (UWA) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Australian Institute of Marine Science (AIMS) 2020-01-21 https://hal.science/hal-02462199 https://doi.org/10.1002/aqc.3272 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1002/aqc.3272 hal-02462199 https://hal.science/hal-02462199 doi:10.1002/aqc.3272 ISSN: 1052-7613 EISSN: 1099-0755 Aquatic Conservation: Marine and Freshwater Ecosystems https://hal.science/hal-02462199 Aquatic Conservation: Marine and Freshwater Ecosystems, 2020, 30 (3), pp.461-474. ⟨10.1002/aqc.3272⟩ behaviour birds coastal marine park recreation shipping [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2020 ftunivrochelle https://doi.org/10.1002/aqc.3272 2024-01-23T23:35:06Z International audience The most western little penguin colony globally, and the most northern in Western Australia (WA) is found on Penguin Island, WA. The penguins use coastal bays that are also used extensively by recreational watercraft. These penguins have been found to either dive predominantly to shallow depths of 1–5 m or to depths >8 m. It is thus hypothesized that (a) both the shallow and deeper diving penguins can potentially be disturbed or injured by these watercraft but that the risk will differ between the two diving strategies, and (b) that risk of injury for both is greater during the summer and autumn, when people are more likely to use watercraft. This was tested by attaching data loggers to little penguins during chick rearing and by investigating necropsy records. Diving activity was studied for the very shallow and relatively deeper diving penguins separately, and we considered the penguins were vulnerable to interactions with watercraft when they were within the top 2 m of the water column or at the surface. Shallow‐diving penguins executed >1,200 dives per day, 64% of dives occurred within the top 2 m, and they were vulnerable for approximately two‐thirds of their time at sea. The deeper diving penguins executed fewer dives. Almost half of dives were to ≥10 m, yet they were vulnerable for almost one‐third of their time at sea. Their post‐dive recovery was also longer. Thus, the risk of interaction from watercraft differs depending on the diving behaviour. This study highlights the potential impact to little penguins throughout Australia and New Zealand. Article in Journal/Newspaper Penguin Island HAL - Université de La Rochelle New Zealand Penguin Island ENVELOPE(-57.926,-57.926,-62.102,-62.102) Aquatic Conservation: Marine and Freshwater Ecosystems 30 3 461 474 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
behaviour birds coastal marine park recreation shipping [SDE]Environmental Sciences |
spellingShingle |
behaviour birds coastal marine park recreation shipping [SDE]Environmental Sciences Cannell, Belinda Ropert‐coudert, Yan Radford, Ben Kato, Akiko The diving behaviour of little penguins in Western Australia predisposes them to risk of injury by watercraft |
topic_facet |
behaviour birds coastal marine park recreation shipping [SDE]Environmental Sciences |
description |
International audience The most western little penguin colony globally, and the most northern in Western Australia (WA) is found on Penguin Island, WA. The penguins use coastal bays that are also used extensively by recreational watercraft. These penguins have been found to either dive predominantly to shallow depths of 1–5 m or to depths >8 m. It is thus hypothesized that (a) both the shallow and deeper diving penguins can potentially be disturbed or injured by these watercraft but that the risk will differ between the two diving strategies, and (b) that risk of injury for both is greater during the summer and autumn, when people are more likely to use watercraft. This was tested by attaching data loggers to little penguins during chick rearing and by investigating necropsy records. Diving activity was studied for the very shallow and relatively deeper diving penguins separately, and we considered the penguins were vulnerable to interactions with watercraft when they were within the top 2 m of the water column or at the surface. Shallow‐diving penguins executed >1,200 dives per day, 64% of dives occurred within the top 2 m, and they were vulnerable for approximately two‐thirds of their time at sea. The deeper diving penguins executed fewer dives. Almost half of dives were to ≥10 m, yet they were vulnerable for almost one‐third of their time at sea. Their post‐dive recovery was also longer. Thus, the risk of interaction from watercraft differs depending on the diving behaviour. This study highlights the potential impact to little penguins throughout Australia and New Zealand. |
author2 |
The University of Western Australia Oceans Institute and School of Biological Sciences Australia The University of Western Australia (UWA) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Australian Institute of Marine Science (AIMS) |
format |
Article in Journal/Newspaper |
author |
Cannell, Belinda Ropert‐coudert, Yan Radford, Ben Kato, Akiko |
author_facet |
Cannell, Belinda Ropert‐coudert, Yan Radford, Ben Kato, Akiko |
author_sort |
Cannell, Belinda |
title |
The diving behaviour of little penguins in Western Australia predisposes them to risk of injury by watercraft |
title_short |
The diving behaviour of little penguins in Western Australia predisposes them to risk of injury by watercraft |
title_full |
The diving behaviour of little penguins in Western Australia predisposes them to risk of injury by watercraft |
title_fullStr |
The diving behaviour of little penguins in Western Australia predisposes them to risk of injury by watercraft |
title_full_unstemmed |
The diving behaviour of little penguins in Western Australia predisposes them to risk of injury by watercraft |
title_sort |
diving behaviour of little penguins in western australia predisposes them to risk of injury by watercraft |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02462199 https://doi.org/10.1002/aqc.3272 |
long_lat |
ENVELOPE(-57.926,-57.926,-62.102,-62.102) |
geographic |
New Zealand Penguin Island |
geographic_facet |
New Zealand Penguin Island |
genre |
Penguin Island |
genre_facet |
Penguin Island |
op_source |
ISSN: 1052-7613 EISSN: 1099-0755 Aquatic Conservation: Marine and Freshwater Ecosystems https://hal.science/hal-02462199 Aquatic Conservation: Marine and Freshwater Ecosystems, 2020, 30 (3), pp.461-474. ⟨10.1002/aqc.3272⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/aqc.3272 hal-02462199 https://hal.science/hal-02462199 doi:10.1002/aqc.3272 |
op_doi |
https://doi.org/10.1002/aqc.3272 |
container_title |
Aquatic Conservation: Marine and Freshwater Ecosystems |
container_volume |
30 |
container_issue |
3 |
container_start_page |
461 |
op_container_end_page |
474 |
_version_ |
1790606473199353856 |