How to keep cool in a hot desert: Torpor in two species of free-ranging bats in summer

Title
How to keep cool in a hot desert: Torpor in two species of free-ranging bats in summer
Publication Date
2016
Author(s)
Bondarenco, Artiom
Koertner, Gerhard
( author )
OrcID: https://orcid.org/0000-0001-8230-0709
Email: gkoertne@une.edu.au
UNE Id une-id:gkoertne
Geiser, Fritz
( author )
OrcID: https://orcid.org/0000-0001-7621-5049
Email: fgeiser@une.edu.au
UNE Id une-id:fgeiser
Type of document
Journal Article
Language
en
Entity Type
Publication
Publisher
Taylor & Francis Inc
Place of publication
United States of America
DOI
10.1080/23328940.2016.1214334
UNE publication id
une:20245
Abstract
Small insectivorous tree-roosting bats are among the most taxonomically diverse group of mammals in Australia's desert, yet little is known about their thermal physiology, torpor patterns and roosting ecology, especially during summer. We used temperature-telemetry to quantify and compare thermal biology and roost selection by broad-nosed bats 'Scotorepens greyii' (6.3 g; n = 11) and 'Scotorepens balstoni' (9.9 g; n D 5) in Sturt National Park (NSW Australia) over 3 summers (2010- 13). Both vespertilionids used torpor often and the total time bats spent torpid was ~7 h per day. Bats rewarmed using entirely passive rewarming on 44.8% (S. greyii) and 29.4% (S. balstoni) of all torpor arousals. Both bat species roosted in hollow, cracked dead trees relatively close to the ground (~3 m) in dense tree stands. Our study shows that torpor and passive rewarming are 2 common and likely crucial survival traits of S. greyii and S. balstoni.
Link
Citation
Temperature, 3(3), p. 476-483
ISSN
2332-8959
2332-8940
Start page
476
End page
483

Files:

NameSizeformatDescriptionLink