Cold arousal - a mechanism used by hibernating bats to reduce the energetic costs of disturbance

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F21%3A00546602" target="_blank" >RIV/68081766:_____/21:00546602 - isvavai.cz</a>

Alternative codes found

RIV/62157124:16270/21:43879704 RIV/00216224:14310/21:00122665

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0306456521002758?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0306456521002758?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jtherbio.2021.103107" target="_blank" >10.1016/j.jtherbio.2021.103107</a>

Result language

angličtina

Original language name

Cold arousal - a mechanism used by hibernating bats to reduce the energetic costs of disturbance

Original language description

During the season of hibernation, temperate bats alternate between prolonged bouts of torpor with reduced body temperature and short arousals with a return to normothermy. Hibernating bats are sensitive to non-tactile stimuli and arouse following changes in microclimatic conditions or disturbance from other bats, potential predators, or humans. Here, we used temperature data loggers to register the skin temperature of 38 Myotis myotis bats over two winters (between January and March), during which regular visits were made to the hibernaculum. Two kinds of arousal were observed, normothermic (Tsk > 25 °C) and cold (Tsk < 15 °C). Although bats responded to the presence of a researcher by arousals of both kinds, cold arousals were more frequent (63.8%). We found that mass loss was not affected by the number of disturbances, however it was in positive relationship with the mass at the beginning of the observation and differed between sex and age categories. Furthermore normothermic bats crawling among cluster-mates initiated arousal cascades, which mainly consisted of cold arousals. We failed to detect any effect of age or sex on the number of arousals initiated by normothermic individuals. Warming by only a few degrees requires less energy than a normothermic arousal and we propose it is sufficient to activate the sensory system in order to assess the relevance of external stimuli. Our results indicate that cold arousals reflect a physiological and behavioural adaptation aimed at avoiding the energetic costs of disturbance that can lead to depletion of fat reserves.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10613 - Zoology

Project

<a href="/en/project/GA17-20286S" target="_blank" >GA17-20286S: Physiology of bat hibernation with respect to multistressor impacts</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Thermal Biology

ISSN

0306-4565

e-ISSN

1879-0992

Volume of the periodical

101

Issue of the periodical within the volume

October

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

103107

UT code for WoS article

000710182900002

EID of the result in the Scopus database

2-s2.0-85116667155