Metabolic rate, latitude and thermal stability of roosts, but not phylogeny, affect rewarming rates of bats
Allyson K. Menzies, Quinn M.R. Webber, Dylan E. Baloun, Liam P. McGuire, Kristina A. Muise, Damien Coté, Craig K.R. Willis
Torpor is an adaptation that allows many endotherms to save energy by abandoning the energetic cost of maintaining elevated body temperatures. Although torpor reduces energy consumption, the metabolic heat production required to arouse from torpor is energetically expensive and can impact the overall cost of torpor. The rate at which rewarming occurs can impact the cost of arousal, therefore, factors influencing rewarming rates of heterothermic endotherms could have influenced the evolution of rewarming rates and overall energetic costs of arousal from torpor. Bats are a useful taxon for studies of ecological and behavioral correlates of rewarming rate because of the widespread expression of heterothermy and ecological diversity across the > 1200 known species. We used a comparative analysis of 45 bat species to test the hypothesis that ecological, behavioral, and physiological factors affect rewarming rates. We used basal metabolic rate (BMR) as an index of thermogenic capacity, and local climate (i.e., latitude of geographic range), roost stability and maximum colony size as ecological and behavioral predictors of rewarming rate. After controlling for phylogeny, high BMR was associated with rapid rewarming while species that live at higher absolute latitudes and in less thermally stable roosts also rewarmed most rapidly. These patterns suggests that some bat species rely on passive rewarming and social thermoregulation to reduce costs of rewarming, while others might rely on thermogenic capacity to maintain rapid rewarming rates in order to reduce energetic costs of arousal. Our results highlight species-specific traits associated with maintaining positive energy balance in a wide range of climates, while also providing insight into possible mechanisms underlying the evolution of heterothermy in endotherms.
Physiology and Behavior
https://doi.org/10.1016/j.physbeh.2016.06.015
PGLS
Roosting behavior
Thermogenic capacity
10.1016/j.physbeh.2016.06.015
Dive into the research topics of 'Metabolic rate, latitude and thermal stability of roosts, but not phylogeny, affect rewarming rates of bats'. Together they form a unique fingerprint.
phylogeny Social Sciences 100%
Rewarming Medicine & Life Sciences 94%
Chiroptera Medicine & Life Sciences 91%
Torpor Medicine & Life Sciences 58%
Hot Temperature Medicine & Life Sciences 54%
costs Social Sciences 39%
Costs and Cost Analysis Medicine & Life Sciences 26%
Menzies, A. K., Webber, Q. M. R., Baloun, D. E., McGuire, L. P., Muise, K. A., Coté, D., & Willis, C. K. R. (2016). Metabolic rate, latitude and thermal stability of roosts, but not phylogeny, affect rewarming rates of bats. Physiology and Behavior, 164, 361-368. https://doi.org/10.1016/j.physbeh.2016.06.015
Menzies, Allyson K. ; Webber, Quinn M.R. ; Baloun, Dylan E. et al. / Metabolic rate, latitude and thermal stability of roosts, but not phylogeny, affect rewarming rates of bats. In: Physiology and Behavior. 2016 ; Vol. 164. pp. 361-368.
@article{43da9df45690491e84f018b95cd70465,
title = "Metabolic rate, latitude and thermal stability of roosts, but not phylogeny, affect rewarming rates of bats",
abstract = "Torpor is an adaptation that allows many endotherms to save energy by abandoning the energetic cost of maintaining elevated body temperatures. Although torpor reduces energy consumption, the metabolic heat production required to arouse from torpor is energetically expensive and can impact the overall cost of torpor. The rate at which rewarming occurs can impact the cost of arousal, therefore, factors influencing rewarming rates of heterothermic endotherms could have influenced the evolution of rewarming rates and overall energetic costs of arousal from torpor. Bats are a useful taxon for studies of ecological and behavioral correlates of rewarming rate because of the widespread expression of heterothermy and ecological diversity across the > 1200 known species. We used a comparative analysis of 45 bat species to test the hypothesis that ecological, behavioral, and physiological factors affect rewarming rates. We used basal metabolic rate (BMR) as an index of thermogenic capacity, and local climate (i.e., latitude of geographic range), roost stability and maximum colony size as ecological and behavioral predictors of rewarming rate. After controlling for phylogeny, high BMR was associated with rapid rewarming while species that live at higher absolute latitudes and in less thermally stable roosts also rewarmed most rapidly. These patterns suggests that some bat species rely on passive rewarming and social thermoregulation to reduce costs of rewarming, while others might rely on thermogenic capacity to maintain rapid rewarming rates in order to reduce energetic costs of arousal. Our results highlight species-specific traits associated with maintaining positive energy balance in a wide range of climates, while also providing insight into possible mechanisms underlying the evolution of heterothermy in endotherms.",
keywords = "BMR, Climate, PGLS, Roosting behavior, Social thermoregulation, Thermogenic capacity",
author = "Menzies, {Allyson K.} and Webber, {Quinn M.R.} and Baloun, {Dylan E.} and McGuire, {Liam P.} and Muise, {Kristina A.} and Damien Cot{\'e} and Willis, {Craig K.R.}",
note = "Funding Information: This is paper number two of the University of Winnipeg Field Course in Ecological Energetics. We thank all members and guest lecturers from the course for assistance in the field and helpful discussion that improved the quality of the manuscript. We thank the Sandilands Forest Discovery Centre for lodging. We thank two anonymous reviewers for comments that greatly improved earlier versions of this manuscript. Funding was provided by the University of Winnipeg , as well as a Natural Sciences and Engineering Research Council of Canada (NSERC, Canada) Graduate Scholarship to AKM, a Manitoba Graduate Scholarship to QMRW, a NSERC Postdoctoral Fellowship to LPM, and a NSERC Discovery Grant to CKRW. Publisher Copyright: {\textcopyright} 2016 Elsevier Inc.",
doi = "10.1016/j.physbeh.2016.06.015",
journal = "Physiology and Behavior",
Menzies, AK, Webber, QMR, Baloun, DE, McGuire, LP, Muise, KA, Coté, D & Willis, CKR 2016, 'Metabolic rate, latitude and thermal stability of roosts, but not phylogeny, affect rewarming rates of bats', Physiology and Behavior, vol. 164, pp. 361-368. https://doi.org/10.1016/j.physbeh.2016.06.015
Metabolic rate, latitude and thermal stability of roosts, but not phylogeny, affect rewarming rates of bats. / Menzies, Allyson K.; Webber, Quinn M.R.; Baloun, Dylan E. et al.
In: Physiology and Behavior, Vol. 164, 01.10.2016, p. 361-368.
T1 - Metabolic rate, latitude and thermal stability of roosts, but not phylogeny, affect rewarming rates of bats
AU - Menzies, Allyson K.
AU - Webber, Quinn M.R.
AU - Baloun, Dylan E.
AU - McGuire, Liam P.
AU - Muise, Kristina A.
AU - Coté, Damien
AU - Willis, Craig K.R.
N1 - Funding Information: This is paper number two of the University of Winnipeg Field Course in Ecological Energetics. We thank all members and guest lecturers from the course for assistance in the field and helpful discussion that improved the quality of the manuscript. We thank the Sandilands Forest Discovery Centre for lodging. We thank two anonymous reviewers for comments that greatly improved earlier versions of this manuscript. Funding was provided by the University of Winnipeg , as well as a Natural Sciences and Engineering Research Council of Canada (NSERC, Canada) Graduate Scholarship to AKM, a Manitoba Graduate Scholarship to QMRW, a NSERC Postdoctoral Fellowship to LPM, and a NSERC Discovery Grant to CKRW. Publisher Copyright: © 2016 Elsevier Inc.
N2 - Torpor is an adaptation that allows many endotherms to save energy by abandoning the energetic cost of maintaining elevated body temperatures. Although torpor reduces energy consumption, the metabolic heat production required to arouse from torpor is energetically expensive and can impact the overall cost of torpor. The rate at which rewarming occurs can impact the cost of arousal, therefore, factors influencing rewarming rates of heterothermic endotherms could have influenced the evolution of rewarming rates and overall energetic costs of arousal from torpor. Bats are a useful taxon for studies of ecological and behavioral correlates of rewarming rate because of the widespread expression of heterothermy and ecological diversity across the > 1200 known species. We used a comparative analysis of 45 bat species to test the hypothesis that ecological, behavioral, and physiological factors affect rewarming rates. We used basal metabolic rate (BMR) as an index of thermogenic capacity, and local climate (i.e., latitude of geographic range), roost stability and maximum colony size as ecological and behavioral predictors of rewarming rate. After controlling for phylogeny, high BMR was associated with rapid rewarming while species that live at higher absolute latitudes and in less thermally stable roosts also rewarmed most rapidly. These patterns suggests that some bat species rely on passive rewarming and social thermoregulation to reduce costs of rewarming, while others might rely on thermogenic capacity to maintain rapid rewarming rates in order to reduce energetic costs of arousal. Our results highlight species-specific traits associated with maintaining positive energy balance in a wide range of climates, while also providing insight into possible mechanisms underlying the evolution of heterothermy in endotherms.
AB - Torpor is an adaptation that allows many endotherms to save energy by abandoning the energetic cost of maintaining elevated body temperatures. Although torpor reduces energy consumption, the metabolic heat production required to arouse from torpor is energetically expensive and can impact the overall cost of torpor. The rate at which rewarming occurs can impact the cost of arousal, therefore, factors influencing rewarming rates of heterothermic endotherms could have influenced the evolution of rewarming rates and overall energetic costs of arousal from torpor. Bats are a useful taxon for studies of ecological and behavioral correlates of rewarming rate because of the widespread expression of heterothermy and ecological diversity across the > 1200 known species. We used a comparative analysis of 45 bat species to test the hypothesis that ecological, behavioral, and physiological factors affect rewarming rates. We used basal metabolic rate (BMR) as an index of thermogenic capacity, and local climate (i.e., latitude of geographic range), roost stability and maximum colony size as ecological and behavioral predictors of rewarming rate. After controlling for phylogeny, high BMR was associated with rapid rewarming while species that live at higher absolute latitudes and in less thermally stable roosts also rewarmed most rapidly. These patterns suggests that some bat species rely on passive rewarming and social thermoregulation to reduce costs of rewarming, while others might rely on thermogenic capacity to maintain rapid rewarming rates in order to reduce energetic costs of arousal. Our results highlight species-specific traits associated with maintaining positive energy balance in a wide range of climates, while also providing insight into possible mechanisms underlying the evolution of heterothermy in endotherms.
KW - BMR
KW - Climate
KW - PGLS
KW - Roosting behavior
KW - Social thermoregulation
KW - Thermogenic capacity
U2 - 10.1016/j.physbeh.2016.06.015
DO - 10.1016/j.physbeh.2016.06.015
JO - Physiology and Behavior
JF - Physiology and Behavior
Menzies AK, Webber QMR, Baloun DE, McGuire LP, Muise KA, Coté D et al. Metabolic rate, latitude and thermal stability of roosts, but not phylogeny, affect rewarming rates of bats. Physiology and Behavior. 2016 Oct 1;164:361-368. doi: 10.1016/j.physbeh.2016.06.015