About pace: How variations in method and definition affect quantification of pacing in bears?

Authors: Laura M Bernstein‐Kurtycz, Kayla G Wiatroski, Austin Leeds, Kristen E Lukas

Publication/Journal: Zoo Biology

Keywords: bears, pacing, stereotypy

2022

Agonistic behavior and feeding competition in the largest piranha species, Pygocentrus piraya, in a zoo

Authors: Ronald G Oldfield, Josie E Thal, Praanjal Das, Nick J Zarlinga, Kristen E Lukas, Jason D Wark

Publication/Journal: Journal of Ethology

Keywords: agonistic behavior, feeding competition, piranha, zoo

2022

Distinguishing mobility and immobility when establishing species‐specific activity budgets: A case study with gorillas (Gorilla berengei berengei and Gorilla gorilla gorilla)

Authors: Jean D Nsekanabo, Austin Leeds, Winnie Eckardt, Deogratias Tuyisingize, Aisha Nyiramana, Kristen E Lukas

Publication/Journal: Zoo Biology

Keywords:

2022

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

Out of Sight, Out of Mind or Just Something in the Way? Visual Barriers Do Not Reduce Intraspecific Agonism in an All-Male Group of Nile Crocodiles (Crocodylus niloticus)

Authors: Austin Leeds, Alex Riley, Megan Terry, Marcus Mazorra, Lindsay Wick, Scott Krug, Kristen Wolfe, Ike Leonard, Andy Daneault, Andrew C Alba

Publication/Journal: Animals

Keywords: animal behavior, animal welfare, crocodilian, evidence-based management, reptile behavior, reptile welfare, visual barriers, zoo exhibit design

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

Body Size Is Related to Temperature Preference in Hyla chrysoscelis Tadpoles

Authors: Danielle R Kirsch, Shawna Fix, Jon M Davenport, Kristen K Cecala, Joshua R Ennen

Publication/Journal: Journal of Herpetology

Keywords: anuran, thermal preference

2021

The Effects of Choice-Based Design and Management on the Behavior and Space Use of Zoo-Housed Amur Tigers (Panthera tigris altaica)

Authors: Charles P Ritzler, Kristen E Lukas, Laura M Bernstein-Kurtycz, Diana C Koester

Publication/Journal: Journal of Applied Animal Welfare Science

Keywords: carnivore, design, environmental choice, space use, tiger

2021

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

Monitoring the social behavior of a bachelor mandrill (Mandrillus sphinx) dyad participating in touchscreen-mediated cognitive testing

Authors: Austin Leeds, Kristen E. Lukas

Publication/Journal: Zoo Biology

Keywords: affiliative behavior, animal welfare, cognitive enrichment, cognitive testing, mandrill

2019