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- Species-typical behavior (3)
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- Silver gibbon; Hylobatid; Cognition; Gesture; Communication; Attentional state (1)
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Articles 1 - 7 of 7
Full-Text Articles in Psychology
Sign Modulation By Chimpanzees To Produce Interrogatives, Kailie Dombrausky
Sign Modulation By Chimpanzees To Produce Interrogatives, Kailie Dombrausky
All Master's Theses
Native signers of American Sign Language produce interrogatives by holding signs for an extended duration while employing the questioning look. The questioning look is defined as raised eyebrows, a tilted head, and direct eye contact maintained for the duration of the utterance. Chimpanzees who communicate using signs have demonstrated modulation of signs including held sign, raised brow, and eye gaze. The present study used archived video data to compare the duration of signs when the chimpanzees did or did not employ the questioning look. In both single and multi-sign utterances, the chimpanzees held their signs for a mean of 0.6 …
Re-Evaluating Captive Chimpanzee “Dominance”: Dominance Hierarchy And Chimpanzee-Caregiver Relationships At Chimpanzee Sanctuary Northwest, Jake Funkhouser
Re-Evaluating Captive Chimpanzee “Dominance”: Dominance Hierarchy And Chimpanzee-Caregiver Relationships At Chimpanzee Sanctuary Northwest, Jake Funkhouser
All Master's Theses
This thesis is composed of two journal-ready articles and an accompanying appendix with additional data and interpretation. Overall, this thesis describes and statistically analyzes dominance relationships in two nonhuman primate groups with novel methods, possible correlations between dominance and testosterone, and uncovers the prominent connection of caregivers to captive chimpanzee social networks. Chapter I addresses current and past variability in behavioral measures and statistical methods to derive dominance rankings. I propose a novel approach to using existing statistical techniques to analyze dominance ranks, context-dependent dominant structures (agonistic competitions, lack of agonism, privileged role, priority access to resources), the reliability of …
Response Of Three Species Of Monkeys To Caregiver Use Of Species-Typical Behavior, Lillian Anna Stolar
Response Of Three Species Of Monkeys To Caregiver Use Of Species-Typical Behavior, Lillian Anna Stolar
All Master's Theses
Caregivers are a primary part of captive monkey environments. When addressing psychological well-being of captive nonhuman primates, social environment should be considered. Chimpanzees, gorillas, New World monkeys, and Old World monkeys responded positively to interactions with caregivers. Some species showed increased affiliative behaviors and decreased abnormal or self-directed behaviors after interactions. These studies showed that caregivers can affect the behavior of nonhuman primates. Caregivers are underutilized as a source of social interaction for captive nonhuman primates. Utilizing species-typical behaviors during interactions, caregivers and nonhuman primates can communicate and interact in different ways that may be beneficial to both caregiver and …
Behavioral Differences Between Urban And Rural American Crows (Corvus Brachyrhynchos), Carolina Montenegro
Behavioral Differences Between Urban And Rural American Crows (Corvus Brachyrhynchos), Carolina Montenegro
All Master's Theses
The consequences of transforming a natural environment into a human-modified environment (i.e., urbanization) on wildlife has long been a topic of concern, but has been hampered by a lack of empirical evidence focused on animal behavior. The current study was designed to explore behavioral differences between urban and rural American crows (Corvus brachyrhynchos) by installing baited perches in urban and rural settings in Kittitas County, Washington. In order to observe differences in urban and rural crow behavior to approach or avoidance-oriented stimuli, perches included custom cameras and audio equipment that alternated between periods of playing crow calls or …
Use Of Vertical Enclosure Space And Species-Typical Locomotion By A Rehabilitating Spider Monkey (Ateles Fusciceps), Jake Funkhouser
Use Of Vertical Enclosure Space And Species-Typical Locomotion By A Rehabilitating Spider Monkey (Ateles Fusciceps), Jake Funkhouser
Undergraduate Honors Theses
With wild spider monkey populations in decline, investigations contributing to captive welfare, and successful rehabilitation and reintroduction knowledge is increasingly pressing. Quantifying and analyzing the appropriateness of naturalistic enclosure designs to foster species-typical behaviors is an effective way to address both of these needs. This study investigates enclosure space use, vertical space preference, substrate use, positional/postural modes, and interactions with human caregivers of a wild-caught, pet-trade rehabilitant Columbian black spider monkey (Ateles fusciceps rufiventris, N = 1). Video data collected daily from August to October 2015 via focal animal sampling (from 08:00 to 10:00) at Alouatta Sanctuary, Panama …
Javan Gibbon (Hylobates Moloch) Non-Vocal Social Communication And Gesture Use With Conspecifics, Melanie Bell
Javan Gibbon (Hylobates Moloch) Non-Vocal Social Communication And Gesture Use With Conspecifics, Melanie Bell
All Master's Theses
I explored gestures used by captive Javan gibbons (Hylobates moloch) at the Gibbon Conservation Center (Santa Clarita, CA). I hypothesized that a sender gibbon’s gesture modality would vary with the recipient gibbon’s attentional state and the sender would be equally likely to use all modalities (tactile, visual, actions, and facial expressions) when the recipient was attending (facing the sender), but would use more tactile gestures and actions when the recipient was non-attending (oriented away from the sender). I collected data from 10 individuals using all-occurrences sampling and an ethogram to score behaviors from video recordings. In 1,143 interactions, …
The Public Perception Of Enrichment For Captive Animals, Elizabeth Marie Webb
The Public Perception Of Enrichment For Captive Animals, Elizabeth Marie Webb
All Master's Theses
The effects of providing participants with educational information on enrichment as measured by the looking time at and ratings of zoo photographs were examined. One hundred and seventeen participants viewed photographs of zoo exhibits, 10 from each of the following categories: artificial exhibit with artificial enrichment, artificial exhibit with naturalistic enrichment, naturalistic exhibit with naturalistic enrichment, and naturalistic exhibit with artificial enrichment. Participants rated the photographs on exhibit aesthetic appeal, perceived animal happiness, and effectiveness of the enrichment. Pre- and posttest ratings of the importance of zoo roles were also collected. Results showed support for the hypothesis that participants provided …