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

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

‘Bearly’ Changing with the Seasons: Bears of Five Species Show Few Behavioral Changes Across Seasons and at Varying Visitor Densities

Authors: L.M. Bernstein-Kurtycz, D. Koester, R. Snyder, J. Vonk, M.A. Willia, K. E. Lukas

Publication/Journal: Animal Behavior and Cognition

Keywords: bear behavior, COVID-19, crowd size, daily attendance, season, visitor effect

2021

Comparison of Two Different Feather Sampling Methods to Measure Corticosterone in Wild Greater Flamingos (Phoenicopterus roseus) and Wild Mallards (Anas platyrhynchos)

Authors: Marielu Voit, Katrin Baumgartner, Lorenzo von Fersen, Roswitha Merle, Lukas Reese, Mechthild Wiegard, Hermann Will, Oriol Tallo-Parra, Annaïs Carbajal, Manel Lopez-Bejar

Publication/Journal: Animals

Keywords: animal welfare, comparative study, cut feathers, feather corticosterone, greater flamingo, less invasive, mallards, plucked feathers, refinement, sex comparison, wild birds

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

Feather Corticosterone Measurements and Behavioral Observations in the Great White Pelican (Pelecanus onocrotalus) Living under Different Flight Restraint Conditions in German Zoos

Authors: Gudrun Haase, Katrin Baumgartner, Lorenzo von Fersen, Roswitha Merle, Mechthild Wiegard, Hermann Will, Lukas Reese, Oriol Tallo-Parra, Annais Carbajal, Manel Lopez-Bejar

Publication/Journal: Animals

Keywords: behavior, clipping feathers, deflighting, feather corticosterone, great white pelican, pinioning, zoo animal welfare

2021

Feather Corticosterone Measurements of Greater Flamingos Living under Different Forms of Flight Restraint

Authors: Lukas Reese, Katrin Baumgartner, Lorenzo von Fersen, Roswitha Merle, Mechthild Ladwig-Wiegard, Hermann Will, Gudrun Haase, Oriol Tallo-Parra, Annaïs Carbajal, Manel Lopez-Bejar

Publication/Journal: Animals

Keywords: animal welfare, bird, deflighting, feather corticosterone, greater flamingo, pinioning

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

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

Experimentally evaluating the function of self-directed behaviour in two adult mandrills (Mandrillus sphinx)

Authors: A. Leeds, K. E. Lukas

Publication/Journal: Animal Welfare

Keywords: animal behaviour, animal welfare, mandrill, primate cognition, self-directed behaviour, zoo

2018

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