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The "Challenge Hypothesis": Theoretical Implications for Patterns of Testosterone Secretion, Mating Systems, and Breeding Strategies
TLDR
This model indicates that there may be widely different hormonal responses to male-male and male-female interactions and presumably equally plastic neural mechanisms for the transduction of these signals into endocrine secretions. Expand
The concept of allostasis in biology and biomedicine
TLDR
The concept of allostasis is discussed, maintaining stability through change, as a fundamental process through which organisms actively adjust to both predictable and unpredictable events, using the balance between energy input and expenditure as the basis for applying the concept. Expand
ECOLOGICAL BASES OF HORMONE-BEHAVIOR INTERACTIONS : THE EMERGENCY LIFE HISTORY STAGE
TLDR
Field work reveals that changes in responsiveness to LPFs have ecological bases, such as reproductive state, body condition etc., that in turn indicate different hormonal control mechanisms in the HPA cascade. Expand
Reproduction and Resistance to Stress: When and How
TLDR
Four mechanisms underlying resistance of the gonadal axis to stress are suggested, likely genetically determined, and their expression may depend upon a complex interaction with environmental factors. Expand
Do baseline glucocorticoids predict fitness?
TLDR
Overall, baseline cort can predict the relative fitness of individuals and populations, but the relationship is not always consistent or present. Expand
The Darwinian concept of stress: benefits of allostasis and costs of allostatic load and the trade-offs in health and disease
TLDR
A conceptual framework is presented showing that Hawks, due to inefficient management of mediators of allostasis, are more likely to be violent, to develop impulse control disorders, hypertension, cardiac arrhythmias, sudden death, atypical depression, chronic fatigue states and inflammation. Expand
Actions of glucocorticoids at a seasonal baseline as compared to stress-related levels in the regulation of periodic life processes.
TLDR
It is argued that biological actions of GCs at "non-stress" seasonal concentrations play a critical role in the adjustment of responses that accompany predictable variability in the environment and demand more careful consideration in future studies. Expand
Maternal corticosterone is transferred to avian yolk and may alter offspring growth and adult phenotype.
TLDR
The results suggest that stress experienced by a laying bird has significant effects on offspring development and adult phenotype, possibly mediated by the transfer of maternal corticosterone to yolk. Expand
Dynamics of food availability, body condition and physiological stress response in breeding Black‐legged Kittiwakes
TLDR
The results suggest that, in addition to a seasonal change in bird physiology during reproduction, local ecological factors such as food availability affect circulating levels of corticosterone and adrenal response to acute stress. Expand
Corticosterone facilitates begging and affects resource allocation in the black-legged kittiwake
TLDR
Two functional implications are suggested of the increased corticosterone secretion during food shortages in the black-legged kittiwake: it facilitates begging in chicks, and it affects time allocated by parents to guarding young at the nest. Expand
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