Assessing zoo giraffe survivorship: Methodological aspects, historical improvement and a rapid demographic shift

Authors: Lara Scherer, Laurie Bingaman Lackey, Max Hahn-Klimroth, Dennis Müller, Marco Roller, Mads Bertelsen, Jörg Jebram, Paul Dierkes, Marcus Clauss

Publication/Journal: Journal of Zoo and Aquarium Research

Keywords: giraffa camelopardalis, husbandry, mortality, progress, survival

2024

Effects of honey locust seed pods on the behavior and nutrient intake of zoo‐housed François langurs and prehensile‐tailed porcupines

Authors: Noah T Dunham, Kaylin S Tennant, Andrew H Loudon, Patricia M Dennis

Publication/Journal: Zoo Biology

Keywords: dietary enrichment, langur, prehensile-tailed porcupine, seed pods

2023

Putting zoo animal cancer into perspective

Authors: Marcus Clauss, Dennis W. H. Müller

Publication/Journal: Zoo Biology

Keywords: cancer, carnivores, husbandry, longevity, old age

2023

Do zoo animals use off‐exhibit areas to avoid noise? A case study exploring the influence of sound on the behavior, physiology, and space use of two pied tamarins (Saguinus bicolor)

Authors: Jason D Wark, Mandi W Schook, Patricia M Dennis, Kristen E Lukas

Publication/Journal: American Journal of Primatology

Keywords: animal welfare, noise, tamarins, zoo

2022

Urinary oxytocin and cortisol concentrations vary by group type in male western lowland gorillas (Gorilla gorilla gorilla) in North American zoos

Authors: Austin Leeds, Mandi W Schook, Patricia M Dennis, Tara S Stoinski, Mark A Willis, Kristen E Lukas

Publication/Journal: Primates

Keywords: animal welfare, gorillas, zoos

2022

A new feeding concept offering speciesappropriate animal enrichment and visitor attraction at the same time

Authors: Viktoria Michel, Marcus Clauss, Dennis WH Müller, Sven Hammer

Publication/Journal: Der Zoologische Garten NF

Keywords: activity budget, animal welfare, enrichment, human-animal interactions, visitor feeding experience

2021

Effects of grazing muzzles on behavior and physiological stress of individually housed grazing miniature horses

Authors: Kristina M Davis, Marie E Iwaniuk, Rachel L Dennis, Patricia A Harris, Amy O Burk

Publication/Journal: Applied Animal Behaviour Science

Keywords: behavior, grazing muzzles, miniature horse, physiological stress

2020

Evaluating changes in salivary oxytocin and cortisol following positive reinforcement training in two adult male western lowland gorillas (Gorilla gorilla gorilla)

Authors: Austin Leeds, Julie Good, Mandi W. Schook, Patricia M. Dennis, Tara S. Stoinski, Mark A. Willis, Kristen E. Lukas

Publication/Journal: Zoo Biology

Keywords: affiliation, human-animal relationship, stress reduction, zoo animal welfare

2019

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

A work‐for‐food enrichment program increases exploration and decreases stereotypies in four species of bears

Authors: Jason D. Wagman, Kristen E. Lukas, Patricia M. Dennis, Mark A. Willis, Joe Carroscia, Curt Gindlesperger, Mandi W. Schook

Publication/Journal: Zoo Biology

Keywords: andean bear, black bear, brown bear, sloth bear, welfare, zoo

2018