Fine scale foraging habitat selection by two diving central place foragers in the Northeast Atlantic
International audience 1. Understanding the animal-habitat relationship at local scale is crucial in ecology, particularly to develop strategies for wildlife management and conservation. As this relationship is governed by environmental features and intra and inter-specific interactions, habitat sel...
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ftunivrochelle:oai:HAL:hal-03247669v1 2024-02-11T10:04:33+01:00 Fine scale foraging habitat selection by two diving central place foragers in the Northeast Atlantic Huon, Mathilde Planque, Yann Jessopp, Mark Cronin, Michelle Caurant, Florence Vincent, Cécile 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) Observatoire pour la Conservation de la Mégafaune Marine (PELAGIS) LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 2021 https://hal.science/hal-03247669 https://doi.org/10.22541/au.160568751.13298342/v1 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.22541/au.160568751.13298342/v1 hal-03247669 https://hal.science/hal-03247669 doi:10.22541/au.160568751.13298342/v1 Authorea https://hal.science/hal-03247669 Authorea, 2021, 11 (18), pp.12349-12363. ⟨10.22541/au.160568751.13298342/v1⟩ Central place foragers diving behaviour foraging activity grey seal GPS/GSM telemetry habitat selection harbour seal local scale [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2021 ftunivrochelle https://doi.org/10.22541/au.160568751.13298342/v1 2024-01-23T23:34:42Z International audience 1. Understanding the animal-habitat relationship at local scale is crucial in ecology, particularly to develop strategies for wildlife management and conservation. As this relationship is governed by environmental features and intra and inter-specific interactions, habitat selection of a population may vary locally between its core and edges. 2. This is particularly true for central place foragers, such as grey and harbour seals, whose trends in numbers vary among different regions in the Northeast Atlantic. Here, we aimed at studying how foraging habitat selection may vary locally with the influence of population trends and physical habitat features 3. Using GPS/GSM tags deployed in grey and harbour seal colonies of contrasting sizes, we investigate spatial patterns and foraging habitat selection by comparing trip characteristics and home range similarities, and fitting GAMM to the seal distribution and environmental data respectively. 4. We show that grey seal foraging habitat selection and spatial patterns differed markedly between regions. Grey seals may select environmental characteristics for their foraging habitat accounting for local differences in prey consumed. Spatial patterns were different might depend on local seal density and regional productivity, located from inshore to offshore areas for the limit ranges and core population respectively. Our results on foraging habitat selection reflected the coastal and sedentary behaviour of harbour seals. We found no difference in spatial patterns between colonies, except for the Inner Hebrides where seals foraged further, potentially reflecting density dependence pressure, as the number in this colony is higher. 5. These results suggest that local conditions might have a strong influence on population spatial ecology, highlighting as well the relevance of studying foraging habitat selection based on foraging behaviour at fine geographical scale, particularly if species are managed within regional units. Article in Journal/Newspaper harbour seal Northeast Atlantic HAL - Université de La Rochelle |
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Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
Central place foragers diving behaviour foraging activity grey seal GPS/GSM telemetry habitat selection harbour seal local scale [SDE]Environmental Sciences |
spellingShingle |
Central place foragers diving behaviour foraging activity grey seal GPS/GSM telemetry habitat selection harbour seal local scale [SDE]Environmental Sciences Huon, Mathilde Planque, Yann Jessopp, Mark Cronin, Michelle Caurant, Florence Vincent, Cécile Fine scale foraging habitat selection by two diving central place foragers in the Northeast Atlantic |
topic_facet |
Central place foragers diving behaviour foraging activity grey seal GPS/GSM telemetry habitat selection harbour seal local scale [SDE]Environmental Sciences |
description |
International audience 1. Understanding the animal-habitat relationship at local scale is crucial in ecology, particularly to develop strategies for wildlife management and conservation. As this relationship is governed by environmental features and intra and inter-specific interactions, habitat selection of a population may vary locally between its core and edges. 2. This is particularly true for central place foragers, such as grey and harbour seals, whose trends in numbers vary among different regions in the Northeast Atlantic. Here, we aimed at studying how foraging habitat selection may vary locally with the influence of population trends and physical habitat features 3. Using GPS/GSM tags deployed in grey and harbour seal colonies of contrasting sizes, we investigate spatial patterns and foraging habitat selection by comparing trip characteristics and home range similarities, and fitting GAMM to the seal distribution and environmental data respectively. 4. We show that grey seal foraging habitat selection and spatial patterns differed markedly between regions. Grey seals may select environmental characteristics for their foraging habitat accounting for local differences in prey consumed. Spatial patterns were different might depend on local seal density and regional productivity, located from inshore to offshore areas for the limit ranges and core population respectively. Our results on foraging habitat selection reflected the coastal and sedentary behaviour of harbour seals. We found no difference in spatial patterns between colonies, except for the Inner Hebrides where seals foraged further, potentially reflecting density dependence pressure, as the number in this colony is higher. 5. These results suggest that local conditions might have a strong influence on population spatial ecology, highlighting as well the relevance of studying foraging habitat selection based on foraging behaviour at fine geographical scale, particularly if species are managed within regional units. |
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) Observatoire pour la Conservation de la Mégafaune Marine (PELAGIS) LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Huon, Mathilde Planque, Yann Jessopp, Mark Cronin, Michelle Caurant, Florence Vincent, Cécile |
author_facet |
Huon, Mathilde Planque, Yann Jessopp, Mark Cronin, Michelle Caurant, Florence Vincent, Cécile |
author_sort |
Huon, Mathilde |
title |
Fine scale foraging habitat selection by two diving central place foragers in the Northeast Atlantic |
title_short |
Fine scale foraging habitat selection by two diving central place foragers in the Northeast Atlantic |
title_full |
Fine scale foraging habitat selection by two diving central place foragers in the Northeast Atlantic |
title_fullStr |
Fine scale foraging habitat selection by two diving central place foragers in the Northeast Atlantic |
title_full_unstemmed |
Fine scale foraging habitat selection by two diving central place foragers in the Northeast Atlantic |
title_sort |
fine scale foraging habitat selection by two diving central place foragers in the northeast atlantic |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03247669 https://doi.org/10.22541/au.160568751.13298342/v1 |
genre |
harbour seal Northeast Atlantic |
genre_facet |
harbour seal Northeast Atlantic |
op_source |
Authorea https://hal.science/hal-03247669 Authorea, 2021, 11 (18), pp.12349-12363. ⟨10.22541/au.160568751.13298342/v1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.22541/au.160568751.13298342/v1 hal-03247669 https://hal.science/hal-03247669 doi:10.22541/au.160568751.13298342/v1 |
op_doi |
https://doi.org/10.22541/au.160568751.13298342/v1 |
_version_ |
1790601212163260416 |