Diel at‐sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour
International audience The first year of life is a period of high mortality in animals. Reduced foraging capacities of naive individuals might be the primary cause of their mortality. These capacities are supposed to be progressively acquired during the first months of life. In this study, we invest...
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ftunivrochelle:oai:HAL:hal-03144036v1 2024-02-11T10:03:21+01:00 Diel at‐sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour Pajot, Adrien Corbeau, Alexandre Jambon, Aurélie Weimerskirch, Henri 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) 63 rue Paradis, Marseille, France 2021 https://hal.science/hal-03144036 https://doi.org/10.1111/jav.02597 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/jav.02597 hal-03144036 https://hal.science/hal-03144036 doi:10.1111/jav.02597 ISSN: 0908-8857 EISSN: 1600-048X Journal of Avian Biology https://hal.science/hal-03144036 Journal of Avian Biology, 2021, 52 (2), pp.e02597. ⟨10.1111/jav.02597⟩ albatross diel activity pattern Diomedea flight behavior foraging activity moon illumination night activity seabirds [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2021 ftunivrochelle https://doi.org/10.1111/jav.02597 2024-01-23T23:34:47Z International audience The first year of life is a period of high mortality in animals. Reduced foraging capacities of naive individuals might be the primary cause of their mortality. These capacities are supposed to be progressively acquired during the first months of life. In this study, we investigate the ontogeny of flight capacities, by day and night, of first‐year individuals, and compare it with adults from two closely related species of great albatrosses: Amsterdam Diomedea amsterdamensis and wandering Diomedea exulans albatrosses which forage in different environmental conditions. We used 71 tracks of 71 juvenile birds and 141 of 116 incubating adults to compare both age categories. In order to explore the effect of moon light on night activity, we elaborated a new formula which improves the precision of the proxy of moon illumination. By day, we found that juveniles of both species reach some adult foraging capacities in less than two months. By night, albatrosses have reduced activity increasing during the first weeks at sea for juveniles and changing in accordance with moon illumination for both juveniles and adults. A peak of flight activity at dawn and dusk was apparent for both species. Interspecific comparison underlined that Amsterdam albatrosses were more active than wandering albatrosses, suggesting a difference in food and foraging strategy. Overall, we highlighted how life history traits, environmental conditions and time of the day affect the foraging activity of two related species of seabirds. Article in Journal/Newspaper Diomedea exulans HAL - Université de La Rochelle Journal of Avian Biology 52 2 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
albatross diel activity pattern Diomedea flight behavior foraging activity moon illumination night activity seabirds [SDE]Environmental Sciences |
spellingShingle |
albatross diel activity pattern Diomedea flight behavior foraging activity moon illumination night activity seabirds [SDE]Environmental Sciences Pajot, Adrien Corbeau, Alexandre Jambon, Aurélie Weimerskirch, Henri Diel at‐sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour |
topic_facet |
albatross diel activity pattern Diomedea flight behavior foraging activity moon illumination night activity seabirds [SDE]Environmental Sciences |
description |
International audience The first year of life is a period of high mortality in animals. Reduced foraging capacities of naive individuals might be the primary cause of their mortality. These capacities are supposed to be progressively acquired during the first months of life. In this study, we investigate the ontogeny of flight capacities, by day and night, of first‐year individuals, and compare it with adults from two closely related species of great albatrosses: Amsterdam Diomedea amsterdamensis and wandering Diomedea exulans albatrosses which forage in different environmental conditions. We used 71 tracks of 71 juvenile birds and 141 of 116 incubating adults to compare both age categories. In order to explore the effect of moon light on night activity, we elaborated a new formula which improves the precision of the proxy of moon illumination. By day, we found that juveniles of both species reach some adult foraging capacities in less than two months. By night, albatrosses have reduced activity increasing during the first weeks at sea for juveniles and changing in accordance with moon illumination for both juveniles and adults. A peak of flight activity at dawn and dusk was apparent for both species. Interspecific comparison underlined that Amsterdam albatrosses were more active than wandering albatrosses, suggesting a difference in food and foraging strategy. Overall, we highlighted how life history traits, environmental conditions and time of the day affect the foraging activity of two related species of seabirds. |
author2 |
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) 63 rue Paradis, Marseille, France |
format |
Article in Journal/Newspaper |
author |
Pajot, Adrien Corbeau, Alexandre Jambon, Aurélie Weimerskirch, Henri |
author_facet |
Pajot, Adrien Corbeau, Alexandre Jambon, Aurélie Weimerskirch, Henri |
author_sort |
Pajot, Adrien |
title |
Diel at‐sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour |
title_short |
Diel at‐sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour |
title_full |
Diel at‐sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour |
title_fullStr |
Diel at‐sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour |
title_full_unstemmed |
Diel at‐sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour |
title_sort |
diel at‐sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03144036 https://doi.org/10.1111/jav.02597 |
genre |
Diomedea exulans |
genre_facet |
Diomedea exulans |
op_source |
ISSN: 0908-8857 EISSN: 1600-048X Journal of Avian Biology https://hal.science/hal-03144036 Journal of Avian Biology, 2021, 52 (2), pp.e02597. ⟨10.1111/jav.02597⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/jav.02597 hal-03144036 https://hal.science/hal-03144036 doi:10.1111/jav.02597 |
op_doi |
https://doi.org/10.1111/jav.02597 |
container_title |
Journal of Avian Biology |
container_volume |
52 |
container_issue |
2 |
_version_ |
1790599559674593280 |