Detailed Information on Publication Record
2019
Numerous cold arousals and rare arousal cascades as a hibernation strategy in European Myotis bats
BLAŽEK, Ján, Jan ZUKAL, Hana BANDOUCHOVA, Hana BERKOVÁ, Veronika KOVACOVA et. al.Basic information
Original name
Numerous cold arousals and rare arousal cascades as a hibernation strategy in European Myotis bats
Authors
BLAŽEK, Ján (203 Czech Republic, belonging to the institution), Jan ZUKAL (203 Czech Republic, belonging to the institution), Hana BANDOUCHOVA (203 Czech Republic), Hana BERKOVÁ (203 Czech Republic), Veronika KOVACOVA, Natália MARTÍNKOVÁ (203 Czech Republic, belonging to the institution), Jiri PIKULA (203 Czech Republic), Zdeněk ŘEHÁK (203 Czech Republic, belonging to the institution), Pavel SKRABANEK (203 Czech Republic) and Tomáš BARTONIČKA (203 Czech Republic, guarantor, belonging to the institution)
Edition
Journal of Thermal Biology, OXFORD, Pergamon Press, 2019, 0306-4565
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.361
RIV identification code
RIV/00216224:14310/19:00110016
Organization unit
Faculty of Science
UT WoS
000470799500018
Keywords in English
Clustering behaviour; Myotis myotis; Synchronised rewarming; Torpor bout; Normothermic and cold arousals
Tags
International impact, Reviewed
Změněno: 8/4/2020 10:08, Mgr. Marie Šípková, DiS.
Abstract
V originále
Hibernating bats optimise the duration of torpor bouts and arousals in relation to hibernaculum microclimatic conditions and fat reserves. Clustering has significant physiological and ecological benefits, promoting successful hibernation of individuals. Such aggregations may help maintain optimal temperatures, allowing better energy utilisation than in solitarily bats. However, aroused bats in a cluster could conceivably disturb those still hibernating, starting an energy-demanding arousal process. Our study was conducted over two winters in two different hibernacula (cave and mine) in the Czech Republic, where Greater mouse-eared bats (Myotis myotis) have previously been diagnosed with white-nose syndrome. In 118 arousal episodes we recorded 193 individual arousals in which a warming phase was observed, 135 (69.9%) being cold arousals, where bats ceased increasing their body temperatures at <= 10 degrees C. The remaining arousals were standard normothermic arousals, where body (fur) surface temperatures reached > 20 degrees C. Cold arousals occurred during the mid- and late hibernation periods, suggesting they were a response to disturbance by a neighbour in the same cluster. Arousal cascades, where bats aroused in series, were rare (12.7%) and reached a maximum in mid-January. Our data suggest that Myotis bats prolong their torpor bouts using numerous cold arousals but few arousal cascades. Upon arrival of a bat, the clustered bats show tolerance to disturbing by conspecifics.
Links
MUNI/A/1436/2018, interní kód MU |
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