3D flights of European free-tailed bats-reference-data

O'Mara MT, Amorim F, McCracken GF, Mata V, Safi K, Wikelski M, Beja P, Rebelo H, Dechmann DKN. 2021. 3D flights of European free-tailed bats-reference-data. Movebank Data Repository. https://doi.org/10.5441/001/1.52nn82r9/2
During the day, flying animals exploit the environmental energy landscape by seeking out thermal or orographic uplift, or extracting energy from wind gradients. However, most of these energy sources are not thought to be available at night because of the lower thermal potential in the nocturnal atmosphere, as well as the difficulty of locating features that generate uplift. Despite this, several bat species have been observed hundreds to thousands of meters above the ground. Individuals make repeated, energetically costly high-altitude ascents, and others fly at some of the fastest speeds observed for powered vertebrate flight. We hypothesized that bats use orographic uplift to reach high altitudes, and that both this uplift and bat high-altitude ascents would be highly predictable. By superimposing detailed three-dimensional GPS tracking of European free-tailed bats (Tadarida teniotis) on high-resolution regional wind data, we show that bats do indeed use the energy of orographic uplift to climb to over 1,600 m, and also that they reach maximum sustained self-powered airspeeds of 135 km h−1. We show that wind and topography can predict areas of the landscape able to support high-altitude ascents, and that bats use these locations to reach high altitudes while reducing airspeeds. Bats then integrate wind conditions to guide high-altitude ascents, deftly exploiting vertical wind energy in the nocturnal landscape.
animal movement,animal tracking,European free-tailed bat,GPS logger,Tadarida teniotis
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DOIs of related Publications
  title = {3D flights of European free-tailed bats-reference-data},
  author = {O'Mara, MT and Amorim, F and McCracken, GF and Mata, V and Safi, K and Wikelski, M and Beja, P and Rebelo, H and Dechmann, DKN},
  year = {2021},
  URL = {http://dx.doi.org/10.5441/001/1.52nn82r9/2},
  doi = {doi:10.5441/001/1.52nn82r9/2},
  publisher = {Movebank data repository}
ID  - doi:10.5441/001/1.52nn82r9/2
T1  - 3D flights of European free-tailed bats-reference-data
AU  - O'Mara, M. Teague
AU  - Amorim, Francisco
AU  - McCracken, Gary F.
AU  - Mata, Vanessa
AU  - Safi, Kamran
AU  - Wikelski, Martin
AU  - Beja, Pedro
AU  - Rebelo, Hugo
AU  - Dechmann, Dina K.N.
Y1  - 2021/02/04
KW  - animal movement
KW  - animal tracking
KW  - European free-tailed bat
KW  - GPS logger
KW  - Tadarida teniotis
KW  - Tadarida teniotis
PB  - Movebank data repository
UR  - http://dx.doi.org/10.5441/001/1.52nn82r9/2
DO  - doi:10.5441/001/1.52nn82r9/2
ER  -