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Tempests, Poxes, Predators, and PeopleStress in Wild Animals and How They Cope$
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L.Michael Romero and John C. Wingfield

Print publication date: 2015

Print ISBN-13: 9780195366693

Published to Oxford Scholarship Online: December 2015

DOI: 10.1093/acprof:oso/9780195366693.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 07 December 2021

Responses to Natural Perturbations

Responses to Natural Perturbations

Variation in Available Energy

(p.263) 7 Responses to Natural Perturbations
Tempests, Poxes, Predators, and People

L. Michael Romero

John C. Wingfield

Oxford University Press

This chapter focuses on environmental stressors that directly impact energy utilization. The stressors presented in this chapter are only a small subset of the stressors that could be included. However, from this subset emerge a few common themes. First, the role of catecholamines in energy regulation in free-living animals has barely been studied; with the introduction of small radio-transmitters that can monitor heart rate, this is likely to improve in the future. Second, the role of the corticosteroids is quite complex. Biomedicine has struggled for decades to understand the role of corticosteroids in energy regulation in humans and laboratory species. Understanding energy regulation in non-traditional study species, as well as environmental variability such as famine and starvation, can be daunting. Third, emergency regulation of energy appears to be mainly regulated by corticosteroid type I (GR) receptors and non-emergency regulation appears to be mainly regulated by corticosteroid type II (MR) receptors.

Keywords:   catecholamines, stress, environmental stressor, heart rate, corticosteroids, famine, starvation

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