Stress physiology in marine mammals: how well do they fit the terrestrial model?

S Atkinson, D Crocker, D Houser… - Journal of Comparative …, 2015 - Springer
Stressors are commonly accepted as the causal factors, either internal or external, that
evoke physiological responses to mediate the impact of the stressor. The majority of …

Applications for non-invasive thyroid hormone measurements in mammalian ecology, growth, and maintenance

V Behringer, C Deimel, G Hohmann, J Negrey… - Hormones and …, 2018 - Elsevier
Thyroid hormones (THs) play a pivotal role in the regulation of metabolic activity throughout
all life stages. Cross-talk with other hormone systems permits THs to coordinate metabolic …

The effects of handling and anesthetic agents on the stress response and carbohydrate metabolism in northern elephant seals

CD Champagne, DS Houser, DP Costa, DE Crocker - PloS one, 2012 - journals.plos.org
Free-ranging animals often cope with fluctuating environmental conditions such as weather,
food availability, predation risk, the requirements of breeding, and the influence of …

Blubber transcriptome response to acute stress axis activation involves transient changes in adipogenesis and lipolysis in a fasting-adapted marine mammal

JI Khudyakov, CD Champagne, LM Meneghetti… - Scientific Reports, 2017 - nature.com
Stress can compromise an animal's ability to conserve metabolic stores and participate in
energy-demanding activities that are critical for fitness. Understanding how wild animals …

From pup to predator: generalized hidden Markov models reveal rapid development of movement strategies in a naïve long‐lived vertebrate

MID Carter, BT McClintock, CB Embling, KA Bennett… - Oikos, 2020 - Wiley Online Library
Rapid development of a successful foraging strategy is critical for juvenile survival,
especially for naïve animals that receive no parental guidance. However, this process is …

[HTML][HTML] Adiposity and fat metabolism in lactating and fasting northern elephant seals

DE Crocker, CD Champagne, MA Fowler… - Advances in nutrition, 2014 - Elsevier
Several taxa of animals fast completely from food and water during energy-intensive periods
such as lactation, breeding, and development. In elephant seals, these behaviors are …

Intrinsic and extrinsic factors drive ontogeny of early-life at-sea behaviour in a marine top predator

MID Carter, DJF Russell, CB Embling, CJ Blight… - Scientific Reports, 2017 - nature.com
Young animals must learn to forage effectively to survive the transition from parental
provisioning to independent feeding. Rapid development of successful foraging strategies is …

Free-swimming northern elephant seals have low field metabolic rates that are sensitive to an increased cost of transport

JL Maresh, SE Simmons, DE Crocker… - Journal of …, 2014 - journals.biologists.com
Widely ranging marine predators often adopt stereotyped, energy-saving behaviours to
minimize the energetic cost of transport while maximizing energy gain. Environmental and …

Stress and marine mammals

S Atkinson, LA Dierauf - CRC handbook of marine mammal …, 2018 - taylorfrancis.com
The understanding of stress physiology in marine mammals has been reviewed recently by
Fair and Becker (2000) and Atkinson et al.(2015). In addition, the National Academies of …

Adrenal sensitivity to stress is maintained despite variation in baseline glucocorticoids in moulting seals

C Champagne, M Tift, D Houser… - Conservation …, 2015 - academic.oup.com
Stressful disturbances activate the hypothalamic–pituitary–adrenal (HPA) axis and result in
the release of glucocorticoid (GC) hormones. This characteristic stress response supports …