Laboratory model of adaptive radiation: Activity and metabolic rates in bank voles from a multidirectional artificial selection experiment

Koteja, Paweł; Baliga‐Klimczyk, Katarzyna; Chrząścik, Katarzyna M.; Damulewicz, M.; Dragosz-Kluska, Dominika; Morawska-Płoskonka, Justyna

doi:10.1016/j.cbpa.2009.04.278

Cited by 6 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, both the decreased body mass and the increased aerobic exercise performance in the habituated group could be an effect of the additional daily locomotor activity. Normally, voles from the C lines have a lower home-cage activity than those from A lines 54 , so it is understandable that the additional activity could have a more profound effect on their energy balance, and hence their body mass. However, in the case of animals whose locomotor activity under laboratory maintenance is certainly lower than in nature, an increased activity and mildly reduced body mass (ca 9% in C lines, and 3% in A lines, compared to the animals not subjected to the procedure) can be considered as a healthy outcome, rather than a chronic-stress response.…”

Section: Discussionmentioning

confidence: 99%

Evolution of an increased performance under acute challenge does not exacerbate vulnerability to chronic stress

Lipowska

Sadowska

Palme

et al. 2022

Sci Rep

View full text Add to dashboard Cite

An adequate stress response plays a vital role in coping with challenges. However, if selection for improved coping with an acute challenge affects the entire stress response system, susceptibility to adverse effects of chronic stressors can be deepened. Here, we used bank voles from lines selected for high swim-induced aerobic metabolism (A) and unselected control (C), and asked if the selection affected sensitivity to chronic mild stress (CMS). The voles were first habituated to daily weighing and feces collection for three weeks, and then for two weeks were exposed to CMS or remained undisturbed. The habituation itself resulted in an increased swim-induced oxygen consumption in both line types, and a decreased body mass. The CMS treatment caused reduction of food consumption in the second week of the experiment, and, in males, a decline in the metabolic rate. Paradoxically, fecal corticosterone metabolites decreased in the CMS-treated group. The response to CMS did not differ between the line types. Thus, the selection for increased performance was not traded off by increased vulnerability to chronic stress. The counter-intuitive results may even lead to a speculation that bank voles—and perhaps also other animals—prefer experiencing unpredictable, unpleasant stressors over the monotony of standard laboratory housing.

show abstract

Section: Discussionmentioning

confidence: 99%

Evolution of an increased performance under acute challenge does not exacerbate vulnerability to chronic stress

Lipowska

Sadowska

Palme

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Thus, both the decreased body mass and the increased aerobic exercise performance in the habituated group could be an effect of the additional daily locomotor activity. Normally, voles from the C lines have a lower home-cage activity than those from A lines 52 , so it is understandable that the additional activity could have a more profound effect on their energy balance, and hence their body mass. However, in the case of animals whose locomotor activity under laboratory maintenance is certainly lower than in nature, an increased activity and mildly reduced body mass (ca 9% in C lines, and 3% in A lines, compared to animals not subjected to the procedure) can be considered as a healthy outcome, rather than a chronic-stress response.…”

Section: Discussionmentioning

confidence: 99%

Evolution of an Increased Performance Under Acute Challenge Does Not Exacerbate Vulnerability to Chronic Stress

Lipowska

Sadowska

Palme

et al. 2021

Preprint

View full text Add to dashboard Cite

An adequate stress response plays a vital role in coping with challenges. However, if selection for improved coping with an acute challenge affects the entire stress response system, susceptibility to adverse effects of chronic stressors can be deepened. Here, we used bank voles from lines selected for high swim-induced aerobic metabolism (A) and unselected control (C), and asked if the selection affected sensitivity to chronic mild stress (CMS). The voles were first habituated to daily weighing and feces collection for three weeks, and then for two weeks were exposed to CMS or remained undisturbed. The habituation itself resulted in an increased swim-induced oxygen consumption in both line types, and a decreased body mass. The CMS treatment caused reduction of food consumption in the second week of the experiment, and, in males, a decline in the metabolic rate. Paradoxically, fecal corticosterone metabolites decreased in the CMS-treated group. The response to CMS did not differ between the line types. Thus, the selection for increased performance was not traded off by increased vulnerability to chronic stress. However, the unexpected decrease in corticosterone suggests that bank voles – and perhaps also other animals – prefer experiencing unpredictable, unpleasant stressors over the monotony of standard laboratory housing.

show abstract

“…2016), and predatory skills (McGhee et al 2013; Chang et al. 2016), we expected that voles from the “aerobic” (A) and “predatory” (P) lines, which are characterized by higher home-cage locomotor activity (Koteja et al. 2009), evolved a more proactive personality, manifested as a higher activity and more intensive exploration in the open field, compared with that of voles from the unselected C lines.…”

mentioning

confidence: 99%

Experimental evolution of personality traits: open-field exploration in bank voles from a multidirectional selection experiment

et al. 2018

View full text Add to dashboard Cite

Evolution of complex physiological adaptations could be driven by natural selection acting on behavioral traits. Consequently, animal personality traits and their correlation with physiological traits have become an engaging research area. Here, we applied a unique experimental evolution model—lines of bank voles selected for (A) high exercise-induced aerobic metabolism, (H) ability to cope with low-quality herbivorous diet, and (P) intensity of predatory behavior, that is, traits shaping evolutionary path and diversity of mammals—and asked how the selection affected the voles’ personality traits, assessed in an open field test. The A- and P-line voles were more active, whereas the H-line voles were less active, compared those from unselected control lines (C). H-line voles moved slower but on more meandering trajectories, which indicated a more thorough exploration, whereas the A- and P-line voles moved faster and on straighter trajectories. A-line voles showed also an increased escape propensity, whereas P-line voles tended to be bolder. The remarkable correlated responses to the selection indicate a common genetic underlying mechanism of behavioral and physiological traits, and support the paradigm of evolutionary physiology built around the concept of correlated evolution of behavior and physiology.

show abstract

Laboratory model of adaptive radiation: Activity and metabolic rates in bank voles from a multidirectional artificial selection experiment

Cited by 6 publications

References 0 publications

Evolution of an increased performance under acute challenge does not exacerbate vulnerability to chronic stress

Evolution of an increased performance under acute challenge does not exacerbate vulnerability to chronic stress

Evolution of an Increased Performance Under Acute Challenge Does Not Exacerbate Vulnerability to Chronic Stress

Experimental evolution of personality traits: open-field exploration in bank voles from a multidirectional selection experiment

Contact Info

Product

Resources

About