A Critical review of animal-based welfare indicators for polar bears (Ursus maritimus) in zoos: Identification and evidence of validity

Authors: CR Skovlund, MK Kirchner, LW Moos, N Alsted, X Manteca, O Tallo-Parra, M Stelvig

Publication/Journal: Animal Welfare

Keywords: animal welfare, behaviour, polar bear, welfare assessment, welfare indicators, zoo welfare

2021

DNA Damage as a Potential Non-Invasive Indicator of Welfare: A Preliminary Study in Zoo-Housed Grizzly Bears (Ursus arctos horribilis)

Authors: Grace Fuller, Jennifer Hamilton, Stephanie Allard

Publication/Journal: Journal of Zoological and Botanical Gardens

Keywords: 8-hydroxy-2′-deoxyguanosine, 8-OHdG, animal welfare indicator, glucocorticoids, grizzly bear, oxidative stress

2021

Appetitive Search Behaviors and Stereotypies in Polar Bears (Ursus maritimus)

Authors: Eduardo J Fernandez

Publication/Journal: Behavioural Processes

Keywords: appetitive behavior, polar bears, response-independent schedules, stereotypies, welfare, zoos

2020

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

Seasonal and Daily Activity of Two Zoo-Housed Grizzly Bears (Ursus Arctos Horribilis)

Authors: Eduardo J Fernandez, Ellen Yoakum, Nathan Andrews

Publication/Journal: Journal of Zoological and Botanical Gardens

Keywords: behavior, circadian, circannual, grizzlies, stereotypies, ursids, zoos

2020

Thermoregulation in Malayan sun bears (Helarctos malayanus) and its consequences for in situ conservation

Authors: Marion Schneider, Thomas Ziegler, Lydia Kolter

Publication/Journal: Journal of Thermal Biology

Keywords: climate change, helarctos malayanus, infrared thermography, malayan sun bear, thermoneutral zone, thermoregulation

2020

Don’t poke the bear: using tracking data to quantify behavioural syndromes in elusive wildlife

Authors: Anne G. Hertel, Martin Leclerc, Dan Warren, Fanie Pelletier, Andreas Zedrosser, Thomas Mueller

Publication/Journal: Animal Behaviour

Keywords: activity sensors, brown bear, gps collar, multivariate mixed model, personality, repeatability

2019

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

Causes of mortality in sloth bears (Melursus ursinus) housed in U.S. zoos

Authors: Kadie Anderson, Michael M Garner, Patricia M Dennis

Publication/Journal: Journal of Zoo and Aquarium Research

Keywords: biliary adenocarcinoma, disease, melursus ursinus, mortality, sloth bear

2018

Effects of acupuncture on the heart rate variability, cortisol levels and behavioural response induced by thunder sound in beagles

Authors: Carolina Elisabetta Martins Maccariello, Carla Caroline Franzini de Souza, Laura Morena, Daniel Penteado Martins Dias, Magda Alves de Medeiros

Publication/Journal: Physiology & Behavior

Keywords: acupuncture, beagles, cortisol, dog, heart rate variability, noise stress

2018