Stress responses play a key role in allowing animals to cope with change and challenge in
the face of both environmental certainty and uncertainty. Measurement of glucocorticoid …

The vertebrate stress response helps animals respond to environmental dangers such as
predators or storms. An important component of the stress response is glucocorticoid (GC) …

When stimuli from the environment are perceived to be a threat or potential threat then
animals initiate stress responses, with activation of the hypothalamo–pituitary–adrenal axis …

We review developments in the study of stress in free-ranging mammals and summarize the
physiological and behavioral components of the stress response. Both the sympathetic …

We determined baseline and capture-induced glucocorticoid concentrations during two
different seasons in three species of wild free-living rodents: brown lemmings (Lemmus …

A method for the non-invasive measurement of glucocorticoid metabolites in feces of
chickens was established and validated. After high-performance liquid chromatography …

Stress is thought to be a potent suppressor of reproduction. However, the vast majority of
studies focus on the relationship between chronic stress and reproductive suppression …

Species have traditionally been defined as cortisol-dominant or corticosterone-dominant,
depending on the glucocorticoid that is reported. To assess the degree of covariance versus …

We examined how glucocorticoid and testosterone concentrations changed from spring to
summer by livetrapping free-living populations of arctic ground squirrels (Spermophilus …

The endocrine mechanisms causing variation and plasticity in life history traits (eg,
development time, mass at birth/hatching, rate of postnatal growth, age or size at sexual …