Foraging in a changing environment: habitat shifts of an oceanic predator over the last half century
International audience Spatial modelling studies stress the importance of predicting future species distribution in changing environments, but it is also important to establish historical distribution ranges of species to provide baseline conditions for understanding distribution shifts. We focused...
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Online Access: | https://doi.org/10.1111/j.1600-0587.2012.07587.x https://hal.archives-ouvertes.fr/hal-00728301 |
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fttriple:oai:gotriple.eu:10670/1.1qe6nt 2023-05-15T13:31:11+02:00 Foraging in a changing environment: habitat shifts of an oceanic predator over the last half century Louzao, Maite Aumont, Olivier Hothorn, Torsten Wiegand, Thorsten Weimerskirch, Henri Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research (UFZ) Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2013-01-01 https://doi.org/10.1111/j.1600-0587.2012.07587.x https://hal.archives-ouvertes.fr/hal-00728301 en eng HAL CCSD Wiley hal-00728301 doi:10.1111/j.1600-0587.2012.07587.x 10670/1.1qe6nt https://hal.archives-ouvertes.fr/hal-00728301 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0906-7590 EISSN: 1600-0587 Ecography Ecography, Wiley, 2013, 36 (1), pp.57-67. ⟨10.1111/j.1600-0587.2012.07587.x⟩ envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.1111/j.1600-0587.2012.07587.x 2023-01-22T16:38:59Z International audience Spatial modelling studies stress the importance of predicting future species distribution in changing environments, but it is also important to establish historical distribution ranges of species to provide baseline conditions for understanding distribution shifts. We focused on pelagic ecosystems, the largest ecosystem on Earth. Based on boosting algorithms, we reconstructed the foraging patterns of an oceanic predator, wandering albatross Diomedea exulans, in the highly dynamic Southern Ocean over the last half century. To access the unobserved past oceanographic conditions, we used simulations of the OPA-PISCES oceanic model for the 1958-2001 period. Firstly, we validated the simulated oceanographic variables (sea surface temperature and height, wind speed and chlorophyll a) for the 1998-2001 period with remotely sensed oceanographic data, which were highly correlated, except chlorophyll a. Secondly, we developed two habitat models (based on simulated and observed oceanographic variables) describing the foraging probability of albatrosses. We detected no statistically significant differences between the two models and predictions of both models matched the observed distribution patterns reasonably. Finally, we projected the most likely historical key pelagic habitats of albatross for the 1958 to 2001 period and characterised recurrent, occasional and unfavourable foraging areas in a decadal basis based on average predictions and their standard deviations. Our findings 1) provided a historical baseline (1958-1968) of recurrent, occasional and unfavourable foraging habitats, 2) evidenced a progressive habitat shift the following decades driven by a propagation of sea surface height from SE South Africa towards Antarctica from 1958 to 2001 and 3) measured habitat change rates of wandering albatross over the last half century. To our knowledge, our study provides the first quantitative long-term assessment of the spatial response of a marine top predator to changing pelagic habitats of the ... Article in Journal/Newspaper Antarc* Antarctica Diomedea exulans Southern Ocean Wandering Albatross Unknown Southern Ocean Ecography 36 1 57 67 |
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English |
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envir geo Louzao, Maite Aumont, Olivier Hothorn, Torsten Wiegand, Thorsten Weimerskirch, Henri Foraging in a changing environment: habitat shifts of an oceanic predator over the last half century |
topic_facet |
envir geo |
description |
International audience Spatial modelling studies stress the importance of predicting future species distribution in changing environments, but it is also important to establish historical distribution ranges of species to provide baseline conditions for understanding distribution shifts. We focused on pelagic ecosystems, the largest ecosystem on Earth. Based on boosting algorithms, we reconstructed the foraging patterns of an oceanic predator, wandering albatross Diomedea exulans, in the highly dynamic Southern Ocean over the last half century. To access the unobserved past oceanographic conditions, we used simulations of the OPA-PISCES oceanic model for the 1958-2001 period. Firstly, we validated the simulated oceanographic variables (sea surface temperature and height, wind speed and chlorophyll a) for the 1998-2001 period with remotely sensed oceanographic data, which were highly correlated, except chlorophyll a. Secondly, we developed two habitat models (based on simulated and observed oceanographic variables) describing the foraging probability of albatrosses. We detected no statistically significant differences between the two models and predictions of both models matched the observed distribution patterns reasonably. Finally, we projected the most likely historical key pelagic habitats of albatross for the 1958 to 2001 period and characterised recurrent, occasional and unfavourable foraging areas in a decadal basis based on average predictions and their standard deviations. Our findings 1) provided a historical baseline (1958-1968) of recurrent, occasional and unfavourable foraging habitats, 2) evidenced a progressive habitat shift the following decades driven by a propagation of sea surface height from SE South Africa towards Antarctica from 1958 to 2001 and 3) measured habitat change rates of wandering albatross over the last half century. To our knowledge, our study provides the first quantitative long-term assessment of the spatial response of a marine top predator to changing pelagic habitats of the ... |
author2 |
Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research (UFZ) Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Louzao, Maite Aumont, Olivier Hothorn, Torsten Wiegand, Thorsten Weimerskirch, Henri |
author_facet |
Louzao, Maite Aumont, Olivier Hothorn, Torsten Wiegand, Thorsten Weimerskirch, Henri |
author_sort |
Louzao, Maite |
title |
Foraging in a changing environment: habitat shifts of an oceanic predator over the last half century |
title_short |
Foraging in a changing environment: habitat shifts of an oceanic predator over the last half century |
title_full |
Foraging in a changing environment: habitat shifts of an oceanic predator over the last half century |
title_fullStr |
Foraging in a changing environment: habitat shifts of an oceanic predator over the last half century |
title_full_unstemmed |
Foraging in a changing environment: habitat shifts of an oceanic predator over the last half century |
title_sort |
foraging in a changing environment: habitat shifts of an oceanic predator over the last half century |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://doi.org/10.1111/j.1600-0587.2012.07587.x https://hal.archives-ouvertes.fr/hal-00728301 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Antarc* Antarctica Diomedea exulans Southern Ocean Wandering Albatross |
genre_facet |
Antarc* Antarctica Diomedea exulans Southern Ocean Wandering Albatross |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0906-7590 EISSN: 1600-0587 Ecography Ecography, Wiley, 2013, 36 (1), pp.57-67. ⟨10.1111/j.1600-0587.2012.07587.x⟩ |
op_relation |
hal-00728301 doi:10.1111/j.1600-0587.2012.07587.x 10670/1.1qe6nt https://hal.archives-ouvertes.fr/hal-00728301 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1111/j.1600-0587.2012.07587.x |
container_title |
Ecography |
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36 |
container_issue |
1 |
container_start_page |
57 |
op_container_end_page |
67 |
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1766016582677430272 |