Data from: Common noctules exploit low levels of the aerosphere
Aerial habitats present a challenge to find food across a large potential search volume, particularly for insectivorous bats that rely on echolocation calls with limited detection range and may forage at heights over 1000 m. To understand how bats use vertical space, we tracked one to five foraging...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:119267 2023-07-02T03:33:18+02:00 Data from: Common noctules exploit low levels of the aerosphere O'Mara, M. Teague Wikelski, Martin Kranstauber, Bart Dechmann, Dina 2019-02-12T05:53:33.000+01:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-oa-mvh8 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:119267 unknown doi:10.5061/dryad.63q3283/1 http://nbn-resolving.org/urn:nbn:nl:ui:13-oa-mvh8 doi:10.5061/dryad.63q3283 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:119267 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2019 ftdans https://doi.org/10.5061/dryad.63q3283/110.5061/dryad.63q3283 2023-06-13T13:34:43Z Aerial habitats present a challenge to find food across a large potential search volume, particularly for insectivorous bats that rely on echolocation calls with limited detection range and may forage at heights over 1000 m. To understand how bats use vertical space, we tracked one to five foraging flights of eight common noctules (Nyctalus noctula). Bats were tracked for their full foraging session (87.27 ± 24 mins) using high-resolution atmospheric pressure radio transmitters that allowed us to calculate height and wingbeat frequency. Bats used diverse flight strategies, but generally flew lower than 40 m, with scouting flights to 100 m and a maximum of 300 m. We found no influence of weather on height and high-altitude ascents were not preceded by an increase in foraging effort. Wingbeat frequency was independent from climbing or descending flight, and bats skipped wingbeats or glided in 10% of all observations. Wingbeat frequency was positively related to capture mass, and wingbeat frequency was positively related to time of night, indicating an effect of load increase over a foraging bout. Overall, individuals used a wide range of airspace including altitudes that put them at increased risk from human-made structures. Further work is needed to test the context of these flight decisions, particularly as individuals migrate throughout Europe. Other/Unknown Material Nyctalus noctula Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
institution |
Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care O'Mara, M. Teague Wikelski, Martin Kranstauber, Bart Dechmann, Dina Data from: Common noctules exploit low levels of the aerosphere |
topic_facet |
Life sciences medicine and health care |
description |
Aerial habitats present a challenge to find food across a large potential search volume, particularly for insectivorous bats that rely on echolocation calls with limited detection range and may forage at heights over 1000 m. To understand how bats use vertical space, we tracked one to five foraging flights of eight common noctules (Nyctalus noctula). Bats were tracked for their full foraging session (87.27 ± 24 mins) using high-resolution atmospheric pressure radio transmitters that allowed us to calculate height and wingbeat frequency. Bats used diverse flight strategies, but generally flew lower than 40 m, with scouting flights to 100 m and a maximum of 300 m. We found no influence of weather on height and high-altitude ascents were not preceded by an increase in foraging effort. Wingbeat frequency was independent from climbing or descending flight, and bats skipped wingbeats or glided in 10% of all observations. Wingbeat frequency was positively related to capture mass, and wingbeat frequency was positively related to time of night, indicating an effect of load increase over a foraging bout. Overall, individuals used a wide range of airspace including altitudes that put them at increased risk from human-made structures. Further work is needed to test the context of these flight decisions, particularly as individuals migrate throughout Europe. |
author |
O'Mara, M. Teague Wikelski, Martin Kranstauber, Bart Dechmann, Dina |
author_facet |
O'Mara, M. Teague Wikelski, Martin Kranstauber, Bart Dechmann, Dina |
author_sort |
O'Mara, M. Teague |
title |
Data from: Common noctules exploit low levels of the aerosphere |
title_short |
Data from: Common noctules exploit low levels of the aerosphere |
title_full |
Data from: Common noctules exploit low levels of the aerosphere |
title_fullStr |
Data from: Common noctules exploit low levels of the aerosphere |
title_full_unstemmed |
Data from: Common noctules exploit low levels of the aerosphere |
title_sort |
data from: common noctules exploit low levels of the aerosphere |
publishDate |
2019 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-oa-mvh8 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:119267 |
genre |
Nyctalus noctula |
genre_facet |
Nyctalus noctula |
op_relation |
doi:10.5061/dryad.63q3283/1 http://nbn-resolving.org/urn:nbn:nl:ui:13-oa-mvh8 doi:10.5061/dryad.63q3283 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:119267 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.63q3283/110.5061/dryad.63q3283 |
_version_ |
1770273182555570176 |