Supplementary material 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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ftdatacite:10.6084/m9.figshare.c.4318610.v1 2023-05-15T18:50:55+02:00 Supplementary material 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.c.4318610.v1 https://figshare.com/collections/Supplementary_material_from_Migrating_ospreys_use_thermal_uplift_over_the_open_sea_/4318610/1 unknown Figshare https://dx.doi.org/10.1098/rsbl.2018.0687 https://dx.doi.org/10.6084/m9.figshare.c.4318610 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Ecology FOS Biological sciences 60801 Animal Behaviour Collection article 2018 ftdatacite https://doi.org/10.6084/m9.figshare.c.4318610.v1 https://doi.org/10.1098/rsbl.2018.0687 https://doi.org/10.6084/m9.figshare.c.4318610 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. Article in Journal/Newspaper 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 Supplementary material 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 |
Article in Journal/Newspaper |
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 |
Supplementary material from "Migrating ospreys use thermal uplift over the open sea" |
title_short |
Supplementary material from "Migrating ospreys use thermal uplift over the open sea" |
title_full |
Supplementary material from "Migrating ospreys use thermal uplift over the open sea" |
title_fullStr |
Supplementary material from "Migrating ospreys use thermal uplift over the open sea" |
title_full_unstemmed |
Supplementary material from "Migrating ospreys use thermal uplift over the open sea" |
title_sort |
supplementary material from "migrating ospreys use thermal uplift over the open sea" |
publisher |
Figshare |
publishDate |
2018 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.4318610.v1 https://figshare.com/collections/Supplementary_material_from_Migrating_ospreys_use_thermal_uplift_over_the_open_sea_/4318610/1 |
genre |
osprey Pandion haliaetus |
genre_facet |
osprey Pandion haliaetus |
op_relation |
https://dx.doi.org/10.1098/rsbl.2018.0687 https://dx.doi.org/10.6084/m9.figshare.c.4318610 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.4318610.v1 https://doi.org/10.1098/rsbl.2018.0687 https://doi.org/10.6084/m9.figshare.c.4318610 |
_version_ |
1766244693784395776 |