Abstract # 53:

Scheduled for Saturday, September 13, 2014 07:00 PM-09:00 PM: Session 11 (Decatur B) Poster Presentation


STRUCTURE UTILIZATION BY INDOOR GROUP-HOUSED JUVENILE PIGTAILED MACAQUES (MACACA NEMESTRINA)

G. H. Lee, R. Kroeker, D. M. Christie, R. U. Bellanca and J. M. Worlein
Washington National Primate Research Center, University of Washington, Box 357330, Seattle, WA 98195-7330, USA
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     A key goal of environmental enhancement programs is to promote a broad range of species-typical behaviors while limiting unwanted behaviors. Information regarding utilization of structural furnishings can be used to aid in the evaluation of these objects in meeting these goals. We observed 17 (16 females, 1 male) juvenile pigtailed macaques (1.0-2.9 years) housed indoors in three peer groups. Enclosures had 1-2 sides composed of fencing, 146.5-188 ft2 floor space covered with bedding, and contained identical furnishings: a large Ferris wheel, fixed elevated shelf, barrel, and Boomer Ball® bobbin. Observations were conducted over four weeks; 3 hours/day, split evenly between morning and afternoon, for a total of 42 hours. Scan sampling was used to instantaneously record the behavior and location (structure) of each animal at 75-second intervals. Animals utilized structures at significantly different rates (?2 = 5,129.8, df=4, P<0.001) spending most time on the shelf (42.6%) followed by wheel (25.1%), floor (15.9%), fence (13.5%), and barrel or bobbin (2.8%). Behaviors also occurred at significantly different rates (repeated measures ANOVAs, p<0.005) on the different structures. Huddle, eat, passive, social and abnormal behaviors occurred most on the shelf. Environmental explore occurred most often on the floor; locomotion most often on the fence. Results indicate that animals preferentially use some structures and that behavioral profiles vary for each structure. Support: NIH grants P51 OD010425, R24OD01180-15.