Supplementary Figures 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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ftroysocietyfig:oai:figshare.com:article/7718189 2023-05-15T17:48:38+02:00 Supplementary Figures from Common noctules exploit low levels of the aerosphere M. Teague O'Mara Martin Wikelski Bart Kranstauber Dina K. N. Dechmann 2019-02-14T09:14:18Z https://doi.org/10.6084/m9.figshare.7718189.v1 https://figshare.com/articles/journal_contribution/Supplementary_Figures_from_Common_noctules_exploit_low_levels_of_the_aerosphere/7718189 unknown doi:10.6084/m9.figshare.7718189.v1 https://figshare.com/articles/journal_contribution/Supplementary_Figures_from_Common_noctules_exploit_low_levels_of_the_aerosphere/7718189 CC BY 4.0 CC-BY Ecology Animal Behaviour aeroecology flight foraging bat movement ecology Text Journal contribution 2019 ftroysocietyfig https://doi.org/10.6084/m9.figshare.7718189.v1 2022-01-01T19:41:56Z 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 min) 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 Non-Article Part of Journal/Newspaper Nyctalus noctula The Royal Society: Figshare |
institution |
Open Polar |
collection |
The Royal Society: Figshare |
op_collection_id |
ftroysocietyfig |
language |
unknown |
topic |
Ecology Animal Behaviour aeroecology flight foraging bat movement ecology |
spellingShingle |
Ecology Animal Behaviour aeroecology flight foraging bat movement ecology M. Teague O'Mara Martin Wikelski Bart Kranstauber Dina K. N. Dechmann Supplementary Figures from Common noctules exploit low levels of the aerosphere |
topic_facet |
Ecology Animal Behaviour aeroecology flight foraging bat movement ecology |
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 min) 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. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
M. Teague O'Mara Martin Wikelski Bart Kranstauber Dina K. N. Dechmann |
author_facet |
M. Teague O'Mara Martin Wikelski Bart Kranstauber Dina K. N. Dechmann |
author_sort |
M. Teague O'Mara |
title |
Supplementary Figures from Common noctules exploit low levels of the aerosphere |
title_short |
Supplementary Figures from Common noctules exploit low levels of the aerosphere |
title_full |
Supplementary Figures from Common noctules exploit low levels of the aerosphere |
title_fullStr |
Supplementary Figures from Common noctules exploit low levels of the aerosphere |
title_full_unstemmed |
Supplementary Figures from Common noctules exploit low levels of the aerosphere |
title_sort |
supplementary figures from common noctules exploit low levels of the aerosphere |
publishDate |
2019 |
url |
https://doi.org/10.6084/m9.figshare.7718189.v1 https://figshare.com/articles/journal_contribution/Supplementary_Figures_from_Common_noctules_exploit_low_levels_of_the_aerosphere/7718189 |
genre |
Nyctalus noctula |
genre_facet |
Nyctalus noctula |
op_relation |
doi:10.6084/m9.figshare.7718189.v1 https://figshare.com/articles/journal_contribution/Supplementary_Figures_from_Common_noctules_exploit_low_levels_of_the_aerosphere/7718189 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.7718189.v1 |
_version_ |
1766154766795145216 |