Albatrosses redirect flight towards vessels at the limit of their visual range
International audience Seabird-fishery interactions are important to seabird ecology and conservation since some species obtain a significant amount of food from fisheries, but mortality from bycatch is a primary cause of population declines in several species. While the availability of high resolut...
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Online Access: | https://hal.science/hal-01326982 https://doi.org/10.3354/meps11233 |
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ftunivrochelle:oai:HAL:hal-01326982v1 2024-02-11T10:03:17+01:00 Albatrosses redirect flight towards vessels at the limit of their visual range Collet, Julien Patrick, Samantha C Weimerskirch, Henri École normale supérieure de Lyon (ENS de Lyon) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) School of Environmental Sciences University of Liverpool 2015 https://hal.science/hal-01326982 https://doi.org/10.3354/meps11233 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps11233 hal-01326982 https://hal.science/hal-01326982 doi:10.3354/meps11233 ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-01326982 Marine Ecology Progress Series, 2015, 526, pp.199-205. ⟨10.3354/meps11233⟩ Wandering albatrosses Fisheries Attraction distance Foraging behaviour GPS Vessel monitoring system VMS Crozet Visual range [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2015 ftunivrochelle https://doi.org/10.3354/meps11233 2024-01-23T23:35:46Z International audience Seabird-fishery interactions are important to seabird ecology and conservation since some species obtain a significant amount of food from fisheries, but mortality from bycatch is a primary cause of population declines in several species. While the availability of high resolution GPS data for both seabirds and vessels over the past few years has allowed analyses of fine-scale behavioural responses of seabirds near fishing vessels, little information is available on the distance at which seabirds respond to vessels. Indeed, previous studies have focused on the foraging behaviour of individuals within the vicinity of vessels but have not considered the approach phase of birds. Here we provide such an estimate by examining changes in the flight direction of GPS-tracked wandering albatrosses breeding on the Crozet Islands in response to the toothfish fishing fleet operating around the breeding grounds, monitored using GPS vessel monitoring system data. We show that although we detect increases in feeding behaviour only when albatrosses are within 3 km of boats, they display clear changes in flight direction, towards vessels, at distances up to 30 km. This distance is nearly 3 times as large as previous estimates, almost reaching the theoretical maximum visual range of an albatross. We discuss these results in the light of previous estimates, and pinpoint factors likely to affect the attraction distance. We suggest that this simple estimate of attraction distance could be investigated in other seabird-fishery systems, to improve our understanding of the factors affecting seabird interaction behaviour, and thus better predict when overlap will lead to interactions. Article in Journal/Newspaper Crozet Islands HAL - Université de La Rochelle Marine Ecology Progress Series 526 199 205 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
Wandering albatrosses Fisheries Attraction distance Foraging behaviour GPS Vessel monitoring system VMS Crozet Visual range [SDE]Environmental Sciences |
spellingShingle |
Wandering albatrosses Fisheries Attraction distance Foraging behaviour GPS Vessel monitoring system VMS Crozet Visual range [SDE]Environmental Sciences Collet, Julien Patrick, Samantha C Weimerskirch, Henri Albatrosses redirect flight towards vessels at the limit of their visual range |
topic_facet |
Wandering albatrosses Fisheries Attraction distance Foraging behaviour GPS Vessel monitoring system VMS Crozet Visual range [SDE]Environmental Sciences |
description |
International audience Seabird-fishery interactions are important to seabird ecology and conservation since some species obtain a significant amount of food from fisheries, but mortality from bycatch is a primary cause of population declines in several species. While the availability of high resolution GPS data for both seabirds and vessels over the past few years has allowed analyses of fine-scale behavioural responses of seabirds near fishing vessels, little information is available on the distance at which seabirds respond to vessels. Indeed, previous studies have focused on the foraging behaviour of individuals within the vicinity of vessels but have not considered the approach phase of birds. Here we provide such an estimate by examining changes in the flight direction of GPS-tracked wandering albatrosses breeding on the Crozet Islands in response to the toothfish fishing fleet operating around the breeding grounds, monitored using GPS vessel monitoring system data. We show that although we detect increases in feeding behaviour only when albatrosses are within 3 km of boats, they display clear changes in flight direction, towards vessels, at distances up to 30 km. This distance is nearly 3 times as large as previous estimates, almost reaching the theoretical maximum visual range of an albatross. We discuss these results in the light of previous estimates, and pinpoint factors likely to affect the attraction distance. We suggest that this simple estimate of attraction distance could be investigated in other seabird-fishery systems, to improve our understanding of the factors affecting seabird interaction behaviour, and thus better predict when overlap will lead to interactions. |
author2 |
École normale supérieure de Lyon (ENS de Lyon) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) School of Environmental Sciences University of Liverpool |
format |
Article in Journal/Newspaper |
author |
Collet, Julien Patrick, Samantha C Weimerskirch, Henri |
author_facet |
Collet, Julien Patrick, Samantha C Weimerskirch, Henri |
author_sort |
Collet, Julien |
title |
Albatrosses redirect flight towards vessels at the limit of their visual range |
title_short |
Albatrosses redirect flight towards vessels at the limit of their visual range |
title_full |
Albatrosses redirect flight towards vessels at the limit of their visual range |
title_fullStr |
Albatrosses redirect flight towards vessels at the limit of their visual range |
title_full_unstemmed |
Albatrosses redirect flight towards vessels at the limit of their visual range |
title_sort |
albatrosses redirect flight towards vessels at the limit of their visual range |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-01326982 https://doi.org/10.3354/meps11233 |
genre |
Crozet Islands |
genre_facet |
Crozet Islands |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-01326982 Marine Ecology Progress Series, 2015, 526, pp.199-205. ⟨10.3354/meps11233⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps11233 hal-01326982 https://hal.science/hal-01326982 doi:10.3354/meps11233 |
op_doi |
https://doi.org/10.3354/meps11233 |
container_title |
Marine Ecology Progress Series |
container_volume |
526 |
container_start_page |
199 |
op_container_end_page |
205 |
_version_ |
1790599499003985920 |