Faecal glucocorticoid metabolites as a measure of adrenocortical activity in polar bears (Ursus maritimus)

Authors: Anna Hein, Rupert Palme, Katrin Baumgartner, Lorenzo von Fersen, Benno Woelfing, Alex D Greenwood, Thea Bechshoft, Ursula Siebert

Publication/Journal: Conservation Physiology

Keywords: adrenocortical activity, faecal glucocorticoid metabolite monitoring, polar bear, stress

2020

Annual fecal glucocorticoid metabolite concentrations in pregnant and pseudopregnant polar bears (Ursus maritimus) in North American zoos

Authors: Jocelyn Bryant, Terri Roth

Publication/Journal: Journal of Zoo and Aquarium Research

Keywords: cortisol, eia, polar bear, pregnancy test, seasonality, stress

2018

Optimal marine mammal welfare under human care: Current efforts and future directions

Authors: Sabrina Brando, Donald M. Broom, Cristina Acasuso-Rivero, Fay Clark

Publication/Journal: Behavioural Processes

Keywords: cetacean, husbandry, marine mammal, pinniped, welfare

2018

Variables affecting the manifestation of and intensity of pacing behavior: A preliminary case study in zoo-housed polar bears

Authors: Isabelle T. Cless, Kristen E. Lukas

Publication/Journal: Zoo Biology

Keywords: abnormal behavior, anticipatory behavior, bear behavior, gait, pacing, stereotypic behavior

2017

Defining pacing quantitatively: A comparison of gait characteristics between pacing and non-repetitive locomotion in zoo-housed polar bears

Authors: Isabelle T. Cless, Heather A. Voss-Hoynes, Roy E. Ritzmann, Kristen E. Lukas

Publication/Journal: Applied Animal Behaviour Science

Keywords: abnormal behavior, gait, pacing, polar bears, zoo animals

2015

Polar bear mother-offspring interactions in maternity dens in captivity

Authors: Chad van Gessel

Publication/Journal: Zoo Biology

Keywords: acoustic communication, maternity den, polar bear, ursus maritimus

2015

Characterization of a pancreatic islet cell tumor in a polar bear (Ursus maritimus)

Authors: Jessica S. Fortin, Marie-Odile Benoit-Biancamano

Publication/Journal: Zoo Biology

Keywords: arctic bear, insulinoma, islet amyloid polypeptide (iapp)

2014

Individual Effects of Seasonal Changes, Visitor Density, and Concurrent Bear Behavior on Stereotypical Behaviors in Captive Polar Bears (Ursus maritimus)

Authors: Krista R. Kelly, Michelle L. Harrison, Daniele D. Size, Suzanne E. MacDonald

Publication/Journal: Journal of Applied Animal Welfare Science

Keywords: polar bear, stereotypy

2014

Milk composition in free-ranging polar bears (Ursus maritimus) as a model for captive rearing milk formula

Authors: G.E. Hedberg, A.E. Derocher, M. Andersen, Q.R. Rogers, E.J. DePeters, B. Lönnerdal, L. Mazzaro, R.W. Chesney, B. Hollis

Publication/Journal: Zoo Biology

Keywords: amino acids bears, fatty acids hand-rearing, lactation, maternal milk, vitamin a, vitamin d, vitamin e

2011

Climate change threatens polar bear populations: a stochastic demographic analysis

Authors: Christine M. Hunter, Hal Caswell, Michael C. Runge, Eric V. Regehr, Steve C. Amstrup, Ian Stirling

Publication/Journal: Ecology

Keywords: climate change, demography, ipcc, ltre analysis, matrix population models, polar bear, sea ice, stochastic growth rate, stochastic models, ursus maritimus

2010