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

J 2021

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

BACHOREC, Erik; Tomáš BARTONIČKA; Tomáš HEGER; Jiří PIKULA; Jan ZUKAL et al.

Základní údaje

Originální název

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

Autoři

BACHOREC, Erik; Tomáš BARTONIČKA; Tomáš HEGER; Jiří PIKULA a Jan ZUKAL

Vydání

Journal of Thermal Biology, Elsevier Ltd. 2021, 0306-4565

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.189

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/21:00122665

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Hibernation; Myotis myotis; Normothermic arousal; Thermal profile; Torpor

Štítky

14314020, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 5. 11. 2021 13:49, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

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.

Návaznosti

MUNI/A/1098/2019, interní kód MU

Název: Výzkum Ekologických a Evolučních Principů na modelu obratlovců a jejich parazitů

Investor: Masarykova univerzita, Výzkum Ekologických a Evolučních Principů na modelu obratlovců a jejich parazitů, DO R. 2020_Kategorie A - Specifický výzkum - Studentské výzkumné projekty

Citovat

BACHOREC, Erik; Tomáš BARTONIČKA; Tomáš HEGER; Jiří PIKULA a Jan ZUKAL. Cold arousal - A mechanism used by hibernating bats to reduce the energetic costs of disturbance. Journal of Thermal Biology. Elsevier Ltd., 2021, roč. 101, October, s. "103107", 6 s. ISSN 0306-4565. Dostupné z: https://doi.org/10.1016/j.jtherbio.2021.103107.

@article{1799678,
   author = {Bachorec, Erik and Bartonička, Tomáš and Heger, Tomáš and Pikula, Jiří and Zukal, Jan},
   article_number = {October},
   doi = {https://doi.org/10.1016/j.jtherbio.2021.103107},
   keywords = {Hibernation; Myotis myotis; Normothermic arousal; Thermal profile; Torpor},
   language = {eng},
   issn = {0306-4565},
   journal = {Journal of Thermal Biology},
   title = {Cold arousal - A mechanism used by hibernating bats to reduce the energetic costs of disturbance},
   url = {https://doi.org/10.1016/j.jtherbio.2021.103107},
   volume = {101},
   year = {2021}
}

TY  - JOUR
ID  - 1799678
AU  - Bachorec, Erik - Bartonička, Tomáš - Heger, Tomáš - Pikula, Jiří - Zukal, Jan
PY  - 2021
TI  - Cold arousal - A mechanism used by hibernating bats to reduce the energetic costs of disturbance
JF  - Journal of Thermal Biology
VL  - 101
IS  - October
SP  - "103107"
EP  - "103107"
PB  - Elsevier Ltd.
SN  - 03064565
KW  - Hibernation
KW  - Myotis myotis
KW  - Normothermic arousal
KW  - Thermal profile
KW  - Torpor
UR  - https://doi.org/10.1016/j.jtherbio.2021.103107
N2  - 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.
ER  -

BACHOREC, Erik; Tomáš BARTONIČKA; Tomáš HEGER; Jiří PIKULA a Jan ZUKAL. Cold arousal - A mechanism used by hibernating bats to reduce the energetic costs of disturbance. \textit{Journal of Thermal Biology}. Elsevier Ltd., 2021, roč.~101, October, s.~''103107'', 6 s. ISSN~0306-4565. Dostupné z: https://doi.org/10.1016/j.jtherbio.2021.103107.

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