Boldness predicts an individual's position along an exploration-exploitation foraging trade-off
International audience Individuals do not have complete information about the environment and therefore they face a trade-off between gathering information (exploration) and gathering resources (exploitation). Studies have shown individual differences in components of this trade-off but how stable t...
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Online Access: | https://hal.science/hal-01550122 https://doi.org/10.1111/1365-2656.12724 |
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ftunivrochelle:oai:HAL:hal-01550122v1 2024-02-11T10:03:21+01:00 Boldness predicts an individual's position along an exploration-exploitation foraging trade-off Patrick, Samantha Clare Pinaud, David Weimerskirch, Henri School of Environmental Sciences Liverpool University of Liverpool 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) 2017-05-23 https://hal.science/hal-01550122 https://doi.org/10.1111/1365-2656.12724 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2656.12724 hal-01550122 https://hal.science/hal-01550122 doi:10.1111/1365-2656.12724 PUBMEDCENTRAL: PMC5601208 ISSN: 0021-8790 EISSN: 1365-2656 Journal of Animal Ecology https://hal.science/hal-01550122 Journal of Animal Ecology, 2017, 86, pp.1257-1268. ⟨10.1111/1365-2656.12724⟩ area-restricted search albatrosses first passage time marginal value theorem personality seabirds [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2017 ftunivrochelle https://doi.org/10.1111/1365-2656.12724 2024-01-23T23:35:33Z International audience Individuals do not have complete information about the environment and therefore they face a trade-off between gathering information (exploration) and gathering resources (exploitation). Studies have shown individual differences in components of this trade-off but how stable these strategies are in a population and the intrinsic drivers of these differences is not well understood. Top marine predators are expected to experience a particularly strong trade-off as many species have large foraging ranges and their prey often have a patchy distribution. This environment leads these species to exhibit pronounced exploration and exploitation phases but differences between individuals are poorly resolved. Personality differences are known to be important in foraging behaviour but also in the trade-off between exploration and exploitation. Here we test whether personality predicts an individual exploration-exploitation strategy using wide ranging wandering albatrosses (Diomedea exulans) as a model system. Using GPS tracking data from 276 wandering albatrosses, we extract foraging parameters indicative of exploration (searching) and exploitation (foraging) and show that foraging effort, time in patch and size of patch are strongly correlated, demonstrating these are indicative of an exploration-exploitation strategy. Furthermore, we show these are consistent within individuals and appear stable in the population, with no reproductive advantage. The searching and foraging behaviour of bolder birds placed them towards the exploration end of the trade-off, whereas shy birds showed greater exploitation. This result provides a mechanism through which individual foraging strategies may emerge. Age and sex affected components of the trade-off, but not the trade-off itself, suggesting these factors may drive behavioural compensation to maintain resource acquisition and this was supported by the evidence that there were no fitness consequence of any EE trait nor the trade-off itself. These results ... Article in Journal/Newspaper Diomedea exulans HAL - Université de La Rochelle Journal of Animal Ecology 86 5 1257 1268 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
area-restricted search albatrosses first passage time marginal value theorem personality seabirds [SDE]Environmental Sciences |
spellingShingle |
area-restricted search albatrosses first passage time marginal value theorem personality seabirds [SDE]Environmental Sciences Patrick, Samantha Clare Pinaud, David Weimerskirch, Henri Boldness predicts an individual's position along an exploration-exploitation foraging trade-off |
topic_facet |
area-restricted search albatrosses first passage time marginal value theorem personality seabirds [SDE]Environmental Sciences |
description |
International audience Individuals do not have complete information about the environment and therefore they face a trade-off between gathering information (exploration) and gathering resources (exploitation). Studies have shown individual differences in components of this trade-off but how stable these strategies are in a population and the intrinsic drivers of these differences is not well understood. Top marine predators are expected to experience a particularly strong trade-off as many species have large foraging ranges and their prey often have a patchy distribution. This environment leads these species to exhibit pronounced exploration and exploitation phases but differences between individuals are poorly resolved. Personality differences are known to be important in foraging behaviour but also in the trade-off between exploration and exploitation. Here we test whether personality predicts an individual exploration-exploitation strategy using wide ranging wandering albatrosses (Diomedea exulans) as a model system. Using GPS tracking data from 276 wandering albatrosses, we extract foraging parameters indicative of exploration (searching) and exploitation (foraging) and show that foraging effort, time in patch and size of patch are strongly correlated, demonstrating these are indicative of an exploration-exploitation strategy. Furthermore, we show these are consistent within individuals and appear stable in the population, with no reproductive advantage. The searching and foraging behaviour of bolder birds placed them towards the exploration end of the trade-off, whereas shy birds showed greater exploitation. This result provides a mechanism through which individual foraging strategies may emerge. Age and sex affected components of the trade-off, but not the trade-off itself, suggesting these factors may drive behavioural compensation to maintain resource acquisition and this was supported by the evidence that there were no fitness consequence of any EE trait nor the trade-off itself. These results ... |
author2 |
School of Environmental Sciences Liverpool University of Liverpool 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) |
format |
Article in Journal/Newspaper |
author |
Patrick, Samantha Clare Pinaud, David Weimerskirch, Henri |
author_facet |
Patrick, Samantha Clare Pinaud, David Weimerskirch, Henri |
author_sort |
Patrick, Samantha Clare |
title |
Boldness predicts an individual's position along an exploration-exploitation foraging trade-off |
title_short |
Boldness predicts an individual's position along an exploration-exploitation foraging trade-off |
title_full |
Boldness predicts an individual's position along an exploration-exploitation foraging trade-off |
title_fullStr |
Boldness predicts an individual's position along an exploration-exploitation foraging trade-off |
title_full_unstemmed |
Boldness predicts an individual's position along an exploration-exploitation foraging trade-off |
title_sort |
boldness predicts an individual's position along an exploration-exploitation foraging trade-off |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-01550122 https://doi.org/10.1111/1365-2656.12724 |
genre |
Diomedea exulans |
genre_facet |
Diomedea exulans |
op_source |
ISSN: 0021-8790 EISSN: 1365-2656 Journal of Animal Ecology https://hal.science/hal-01550122 Journal of Animal Ecology, 2017, 86, pp.1257-1268. ⟨10.1111/1365-2656.12724⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2656.12724 hal-01550122 https://hal.science/hal-01550122 doi:10.1111/1365-2656.12724 PUBMEDCENTRAL: PMC5601208 |
op_doi |
https://doi.org/10.1111/1365-2656.12724 |
container_title |
Journal of Animal Ecology |
container_volume |
86 |
container_issue |
5 |
container_start_page |
1257 |
op_container_end_page |
1268 |
_version_ |
1790599562625286144 |