details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea
Most large raptors on migration avoid crossing the sea because of the lack of atmospheric convection over temperate seas. The osprey Pandion haliaetus is an exception among raptors, since it can fly over several hundred km of open water. We equipped five juvenile ospreys with GPS-Accelerometer-Magne...
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2018
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ftdatacite:10.6084/m9.figshare.7403912 2023-05-15T18:50:55+02:00 details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea Duriez, Olivier PERON, Guillaume Gremillet, David Sforzi, Andrea Monti, Flavio 2018 https://dx.doi.org/10.6084/m9.figshare.7403912 https://rs.figshare.com/articles/details_of_environmental_covariates_analyses_from_Migrating_ospreys_use_thermal_uplift_over_the_open_sea/7403912 unknown The Royal Society Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Ecology FOS Biological sciences 60801 Animal Behaviour Presentation MediaObject article Audiovisual 2018 ftdatacite https://doi.org/10.6084/m9.figshare.7403912 2021-11-05T12:55:41Z Most large raptors on migration avoid crossing the sea because of the lack of atmospheric convection over temperate seas. The osprey Pandion haliaetus is an exception among raptors, since it can fly over several hundred km of open water. We equipped five juvenile ospreys with GPS-Accelerometer-Magnetometer loggers. All birds were able to find and use thermal uplift while crossing the Mediterranean Sea, on average 7.5 times per 100 km, and could reach altitudes of 900 m above the sea surface. Their climb rate was 1.6 time slower than over land, and birds kept flapping most of the time while circling in the thermals, indicating that convections cells were weaker than over land. The frequency of thermal soaring was correlated with the difference between the sea surface and air temperature, indicating that atmospheric convection occurred when surface waters were warmer than the overlaying air. These observations help explaining the transoceanic cosmopolitan distribution of osprey, and question the widely held assumption that water bodies represent strict barriers for large raptors. Conference Object osprey Pandion haliaetus DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Ecology FOS Biological sciences 60801 Animal Behaviour |
spellingShingle |
Ecology FOS Biological sciences 60801 Animal Behaviour Duriez, Olivier PERON, Guillaume Gremillet, David Sforzi, Andrea Monti, Flavio details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea |
topic_facet |
Ecology FOS Biological sciences 60801 Animal Behaviour |
description |
Most large raptors on migration avoid crossing the sea because of the lack of atmospheric convection over temperate seas. The osprey Pandion haliaetus is an exception among raptors, since it can fly over several hundred km of open water. We equipped five juvenile ospreys with GPS-Accelerometer-Magnetometer loggers. All birds were able to find and use thermal uplift while crossing the Mediterranean Sea, on average 7.5 times per 100 km, and could reach altitudes of 900 m above the sea surface. Their climb rate was 1.6 time slower than over land, and birds kept flapping most of the time while circling in the thermals, indicating that convections cells were weaker than over land. The frequency of thermal soaring was correlated with the difference between the sea surface and air temperature, indicating that atmospheric convection occurred when surface waters were warmer than the overlaying air. These observations help explaining the transoceanic cosmopolitan distribution of osprey, and question the widely held assumption that water bodies represent strict barriers for large raptors. |
format |
Conference Object |
author |
Duriez, Olivier PERON, Guillaume Gremillet, David Sforzi, Andrea Monti, Flavio |
author_facet |
Duriez, Olivier PERON, Guillaume Gremillet, David Sforzi, Andrea Monti, Flavio |
author_sort |
Duriez, Olivier |
title |
details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea |
title_short |
details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea |
title_full |
details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea |
title_fullStr |
details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea |
title_full_unstemmed |
details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea |
title_sort |
details of environmental covariates analyses from migrating ospreys use thermal uplift over the open sea |
publisher |
The Royal Society |
publishDate |
2018 |
url |
https://dx.doi.org/10.6084/m9.figshare.7403912 https://rs.figshare.com/articles/details_of_environmental_covariates_analyses_from_Migrating_ospreys_use_thermal_uplift_over_the_open_sea/7403912 |
genre |
osprey Pandion haliaetus |
genre_facet |
osprey Pandion haliaetus |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.7403912 |
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1766244694989209600 |