• Preference assessments as a tool to evaluate environmental enrichment

      Woods, Jocelyn M.; Lane, Erin K.; Miller, Lance J. (2020)
      …Ten-minute free operant, paired-choice preference assessments were implemented in Study 1 to determine the enrichment preferences of African lions (N = 3). Following Study 1, Study 2 was conducted, which examined the behavior of African lions with enrichment items over the course of 30, 24-hr trials to evaluate the relationship between preferences established in Study 1 and long-term interaction with the enrichment….
    • The effects of GPS collars on African elephant (Loxodonta africana) behavior at the San Diego Zoo Safari Park

      Horback, Kristina Marie; Miller, Lance J.; Andrews, Jeffrey; Kuczaj, Stanley Abraham; Anderson, Matthew J. (2012)
      The use of tracking devices (e.g., VHF radio collars, GPS collars, ear transmitters) enables researchers to assess activity budgets, species-specific movement patterns, effects of environmental enrichment, and exercise levels in zoo animals….The present study examined solitary and social behavior rates, as well as overall activity budgets, in eight African elephants living at the San Diego Zoo Safari Park, Escondido, CA, USA....