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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ftroysocietyfig:oai:figshare.com:article/7403912 2023-05-15T18:50:55+02:00 details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea Olivier Duriez Guillaume PERON David Gremillet Andrea Sforzi Flavio Monti 2018-11-30T01:09:57Z https://doi.org/10.6084/m9.figshare.7403912.v1 https://figshare.com/articles/presentation/details_of_environmental_covariates_analyses_from_Migrating_ospreys_use_thermal_uplift_over_the_open_sea/7403912 unknown doi:10.6084/m9.figshare.7403912.v1 https://figshare.com/articles/presentation/details_of_environmental_covariates_analyses_from_Migrating_ospreys_use_thermal_uplift_over_the_open_sea/7403912 CC BY 4.0 CC-BY Ecology Animal Behaviour Pandion haliaetus raptor Mediterranean Sea migration soaring-gliding flight ecological barrier Text Presentation 2018 ftroysocietyfig https://doi.org/10.6084/m9.figshare.7403912.v1 2022-01-01T19:43:35Z 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 The Royal Society: Figshare |
institution |
Open Polar |
collection |
The Royal Society: Figshare |
op_collection_id |
ftroysocietyfig |
language |
unknown |
topic |
Ecology Animal Behaviour Pandion haliaetus raptor Mediterranean Sea migration soaring-gliding flight ecological barrier |
spellingShingle |
Ecology Animal Behaviour Pandion haliaetus raptor Mediterranean Sea migration soaring-gliding flight ecological barrier Olivier Duriez Guillaume PERON David Gremillet Andrea Sforzi Flavio Monti details of environmental covariates analyses from Migrating ospreys use thermal uplift over the open sea |
topic_facet |
Ecology Animal Behaviour Pandion haliaetus raptor Mediterranean Sea migration soaring-gliding flight ecological barrier |
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 |
Olivier Duriez Guillaume PERON David Gremillet Andrea Sforzi Flavio Monti |
author_facet |
Olivier Duriez Guillaume PERON David Gremillet Andrea Sforzi Flavio Monti |
author_sort |
Olivier Duriez |
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 |
publishDate |
2018 |
url |
https://doi.org/10.6084/m9.figshare.7403912.v1 https://figshare.com/articles/presentation/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_relation |
doi:10.6084/m9.figshare.7403912.v1 https://figshare.com/articles/presentation/details_of_environmental_covariates_analyses_from_Migrating_ospreys_use_thermal_uplift_over_the_open_sea/7403912 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.7403912.v1 |
_version_ |
1766244694161883136 |