Influence of adrenocorticotrophin hormone challenge and external factors (age, sex, and body region) on hair cortisol concentration in Canada lynx (Lynx canadensis).

Highlights: [•] Validated EIA to quantify hair cortisol concentrations in Canada lynx. [•] Demonstrated hair cortisol concentration increases after ACTH challenge in captive lynx. [•] Showed hair cortisol concentration does not vary with age and sex, but does vary with body region. [•] Suggested hair cortisol concentration samples be collected from a standardized region. [ABSTRACT FROM AUTHOR]