Flight rapidly modulates body temperature in freely behaving bats

Abstract Background Bats are remarkable in their dynamic control over body temperature, showing both hypothermia with torpor and hyperthermia during flight. Despite considerable research in understanding bats’ thermoregulation mechanisms, knowledge on the relationship between flight and body tempera...

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Autores principales:	Jinhong Luo, Stefan Greif, Huan Ye, Sara Bumrungsri, Ofri Eitan, Yossi Yovel
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Chiroptera Energetics Foraging strategy Heterotherm Thermoregulation Ecology QH540-549.5 Animal biochemistry QP501-801
Acceso en línea:	https://doaj.org/article/7aa97f8eaca24d589026ebf57bf33388
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spelling	oai:doaj.org-article:7aa97f8eaca24d589026ebf57bf333882021-11-08T11:15:29ZFlight rapidly modulates body temperature in freely behaving bats10.1186/s40317-021-00268-62050-3385https://doaj.org/article/7aa97f8eaca24d589026ebf57bf333882021-11-01T00:00:00Zhttps://doi.org/10.1186/s40317-021-00268-6https://doaj.org/toc/2050-3385Abstract Background Bats are remarkable in their dynamic control over body temperature, showing both hypothermia with torpor and hyperthermia during flight. Despite considerable research in understanding bats’ thermoregulation mechanisms, knowledge on the relationship between flight and body temperature in bats remains limited, possibly due to technological restraints. Results We used onboard dataloggers including a temperature sensor and an inertial sensor (accelerometers) and continuously recorded the flight behavior and skin temperature (T sk ) subcutaneously of a perch-hunting bat, Hipposideros armiger, both in the laboratory and in the field. We provide evidence that flight increases the body temperature of bats. The median of the maximum increase in the T sk caused by flight bouts was 3.4 °C (between 1.9 and 5.3 °C for different individuals) in the laboratory. The maximum T sk for the bats was narrowly centered around 40 °C (between 38.5 and 40.9 °C). Moreover, we found that the faster the T sk rises, the greater the maximum increase in T sk . Interestingly, bats can slow down the T sk rises with intermittent fights, during which they perch after brief flight bouts to allow the body temperature to drop rapidly. Similar data were collected from field recordings in free-ranging bats. Conclusions We suggest that perch-hunting behavior observed in approximately 200 species of bats that results in intermittent flights may function as a thermoregulatory strategy, in addition to optimizing energy efficiency as demonstrated by previous studies.Jinhong LuoStefan GreifHuan YeSara BumrungsriOfri EitanYossi YovelBMCarticleChiropteraEnergeticsForaging strategyHeterothermThermoregulationEcologyQH540-549.5Animal biochemistryQP501-801ENAnimal Biotelemetry, Vol 9, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chiroptera Energetics Foraging strategy Heterotherm Thermoregulation Ecology QH540-549.5 Animal biochemistry QP501-801
spellingShingle	Chiroptera Energetics Foraging strategy Heterotherm Thermoregulation Ecology QH540-549.5 Animal biochemistry QP501-801 Jinhong Luo Stefan Greif Huan Ye Sara Bumrungsri Ofri Eitan Yossi Yovel Flight rapidly modulates body temperature in freely behaving bats
description	Abstract Background Bats are remarkable in their dynamic control over body temperature, showing both hypothermia with torpor and hyperthermia during flight. Despite considerable research in understanding bats’ thermoregulation mechanisms, knowledge on the relationship between flight and body temperature in bats remains limited, possibly due to technological restraints. Results We used onboard dataloggers including a temperature sensor and an inertial sensor (accelerometers) and continuously recorded the flight behavior and skin temperature (T sk ) subcutaneously of a perch-hunting bat, Hipposideros armiger, both in the laboratory and in the field. We provide evidence that flight increases the body temperature of bats. The median of the maximum increase in the T sk caused by flight bouts was 3.4 °C (between 1.9 and 5.3 °C for different individuals) in the laboratory. The maximum T sk for the bats was narrowly centered around 40 °C (between 38.5 and 40.9 °C). Moreover, we found that the faster the T sk rises, the greater the maximum increase in T sk . Interestingly, bats can slow down the T sk rises with intermittent fights, during which they perch after brief flight bouts to allow the body temperature to drop rapidly. Similar data were collected from field recordings in free-ranging bats. Conclusions We suggest that perch-hunting behavior observed in approximately 200 species of bats that results in intermittent flights may function as a thermoregulatory strategy, in addition to optimizing energy efficiency as demonstrated by previous studies.
format	article
author	Jinhong Luo Stefan Greif Huan Ye Sara Bumrungsri Ofri Eitan Yossi Yovel
author_facet	Jinhong Luo Stefan Greif Huan Ye Sara Bumrungsri Ofri Eitan Yossi Yovel
author_sort	Jinhong Luo
title	Flight rapidly modulates body temperature in freely behaving bats
title_short	Flight rapidly modulates body temperature in freely behaving bats
title_full	Flight rapidly modulates body temperature in freely behaving bats
title_fullStr	Flight rapidly modulates body temperature in freely behaving bats
title_full_unstemmed	Flight rapidly modulates body temperature in freely behaving bats
title_sort	flight rapidly modulates body temperature in freely behaving bats
publisher	BMC
publishDate	2021
url	https://doaj.org/article/7aa97f8eaca24d589026ebf57bf33388
work_keys_str_mv	AT jinhongluo flightrapidlymodulatesbodytemperatureinfreelybehavingbats AT stefangreif flightrapidlymodulatesbodytemperatureinfreelybehavingbats AT huanye flightrapidlymodulatesbodytemperatureinfreelybehavingbats AT sarabumrungsri flightrapidlymodulatesbodytemperatureinfreelybehavingbats AT ofrieitan flightrapidlymodulatesbodytemperatureinfreelybehavingbats AT yossiyovel flightrapidlymodulatesbodytemperatureinfreelybehavingbats
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Flight rapidly modulates body temperature in freely behaving bats

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