Less common synchronized rewarming in WNS tolerant bats as
hibernation strategy

a 2017

Less common synchronized rewarming in WNS tolerant bats as hibernation strategy

BARTONIČKA, Tomáš; Ján BLAŽEK; Hana BANDOUCHOVA; Hana BERKOVÁ; Jiří PIKULA et al.

Základní údaje

Originální název

Less common synchronized rewarming in WNS tolerant bats as hibernation strategy

Autoři

BARTONIČKA, Tomáš; Ján BLAŽEK; Hana BANDOUCHOVA; Hana BERKOVÁ; Jiří PIKULA; Zdeněk ŘEHÁK a Jan ZUKAL

Vydání

14th European Bat Research Symposium, 2017

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10600 1.6 Biological sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-84-697-4575-5

Klíčová slova anglicky

hibernation bats

Změněno: 14. 8. 2017 14:19, doc. Mgr. Tomáš Bartonička, Ph.D.

Anotace

V originále

Torpor bouts and arousals in hibernating bats need to be optimized according to the hibernaculum temperature and bat fat reserves. Clustering as a behavioural phenomenon which has significant physiological and ecological benefits promoting consequences for the successful hibernation of individuals. Aggregated bats probably maintain optimal temperature with lower costs then solitary hibernating bats that allows them to reduce energy consumption. However clustering could be also risky when aroused bats interfere with hibernating bats and those start energy-demanding awakening. Our study was conducted over two winters in two different hibernacula in the Czech Republic, where bats were previously diagnosed with WNS. The thermal behaviour of four hibernating clusters of greater mouse-eared bats (Myotis myotis) was recorded using thermographic cameras. Normothermic events (Tfnorm, 119 in total) were not more frequent at the end of the winter, as coccurs in North American bats that are affected by WNS. The most of normothermic events (60%) did not exceed 1.5 hours. We were not able to find any relationship between Tfnorm timing and sunset. Characteristics of Tfnorm significantly differ between winters and sites. Synchronized rewarmings were found in 17 (14%) of Tfnorms. During the winter there were constant number of cascades, but their percentage was the highest in the mid-March. Our results show differences in the hibernation of bats with WNS between the Czech Republic and North America and at the same time highlighting the specific role of climate and sites that fundamentally affect hibernation strategies.

Citovat

BARTONIČKA, Tomáš; Ján BLAŽEK; Hana BANDOUCHOVA; Hana BERKOVÁ; Jiří PIKULA; Zdeněk ŘEHÁK a Jan ZUKAL. Less common synchronized rewarming in WNS tolerant bats as hibernation strategy. In 14th European Bat Research Symposium. 2017. ISBN 978-84-697-4575-5.

@proceedings{1387276,
   author = {Bartonička, Tomáš and Blažek, Ján and Bandouchova, Hana and Berková, Hana and Pikula, Jiří and Řehák, Zdeněk and Zukal, Jan},
   booktitle = {14th European Bat Research Symposium},
   keywords = {hibernation bats},
   language = {eng},
   isbn = {978-84-697-4575-5},
   title = {Less common synchronized rewarming in WNS tolerant bats as hibernation strategy},
   year = {2017}
}

TY  - CONF
ID  - 1387276
AU  - Bartonička, Tomáš - Blažek, Ján - Bandouchova, Hana - Berková, Hana - Pikula, Jiří - Řehák, Zdeněk - Zukal, Jan
PY  - 2017
TI  - Less common synchronized rewarming in WNS tolerant bats as hibernation strategy
SN  - 9788469745755
KW  - hibernation bats
N2  - Torpor bouts and arousals in hibernating bats need to be optimized according to the hibernaculum temperature and bat fat reserves. Clustering as a behavioural phenomenon which has significant physiological and ecological benefits promoting consequences for the successful hibernation of individuals. Aggregated bats probably maintain optimal temperature with lower costs then solitary hibernating bats that allows them to reduce energy consumption. However clustering could be also risky when aroused bats interfere with hibernating bats and those start energy-demanding awakening. Our study was conducted over two winters in two different hibernacula in the Czech Republic, where bats were previously diagnosed with WNS. The thermal behaviour of four hibernating clusters of greater mouse-eared bats (Myotis myotis) was recorded using thermographic cameras. Normothermic events (Tfnorm, 119 in total) were not more frequent at the end of the winter, as coccurs in North American bats that are affected by WNS. The most of normothermic events (60%) did not exceed 1.5 hours. We were not able to find any relationship between Tfnorm timing and sunset. Characteristics of Tfnorm significantly differ between winters and sites. Synchronized rewarmings were found in 17 (14%) of Tfnorms. During the winter there were constant number of cascades, but their percentage was the highest in the mid-March. Our results show differences in the hibernation of bats with WNS between the Czech Republic and North America and at the same time highlighting the specific role of climate and sites that fundamentally affect hibernation strategies.
ER  -

BARTONIČKA, Tomáš; Ján BLAŽEK; Hana BANDOUCHOVA; Hana BERKOVÁ; Jiří PIKULA; Zdeněk ŘEHÁK a Jan ZUKAL. Less common synchronized rewarming in WNS tolerant bats as hibernation strategy. In \textit{14th European Bat Research Symposium}. 2017. ISBN~978-84-697-4575-5.

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