seasonal variation

Corticosterone in feathers is a long-term, integrated measure of avian stress physiology

Authors

GR Bortolotti, TA Marchant, J Blas, T German

2008

Publication/Journal

Functional Ecology

Keywords

hypothalamic–pituitary–adrenal axis, glucocorticoids, non-invasive technique, reproductive effort, seasonal variation, social signal

Female polar bears, Ursus maritimus, on the Barents Sea drift ice: walking the treadmill

Authors

2003

Publication/Journal

Animal Behaviour

Keywords

fissipedia, arctic ocean, animal active movement, investigation method, ursus maritimus, barents sea, field study, female, habitat, seasonal variation, geographic distribution, migration, ice drift, satellite tracking

Effect of environmental stress and immobilization on stress physiological variables in farmed mink

Authors

SW Hansen, B Damgaard

1991

Publication/Journal

Behavioural Processes

Keywords

cage size, cortisol, differential leucocyte gount, eosinophil leucocyte, h/l ratio, nest box, seasonal variation

Measuring Fecal Glucocorticoid Metabolites in Mammals and Birds: The Importance of Validation

Authors

C Touma, R Palme

2005

Publication/Journal

Annals of the New York Academy of Sciences

Keywords

stress hormones, glucocorticoids, cortisol, corticosterone, hpa axis, noninvasive monitoring, feces/faeces, validation, acth challenge test, dexamethasone suppression test, sex differences, diurnal variation, seasonal variation, life history stages, review

Seasonal variation in the length of the daily activity period in buffy-headed marmosets (Callithrix flaviceps): An important consideration for the analysis of foraging strategies in observational field studies of primates

Authors

SF Ferrari, RR Hilário

2013

Publication/Journal

American Journal of Primatology

Keywords

behavioral analysis, seasonal variation, ecology, foraging strategies, marmosets

Effects of seasonal changes in dietary energy on body weight of captive Japanese macaques (Macaca fuscata)

Authors

K Aoki, S Mitsutsuka, A Yamazaki, K Nagai, A Tezuka, Y Tsuji

2015

Publication/Journal

Zoo Biology

Keywords

captivity, diet, energy, primates, seasonal variation