Abstract # 182:

Scheduled for Friday, August 19, 2005 07:00 PM-09:00 PM: (Cambridge/Oxford Room) Poster Presentation

Geographic Information Systems (GIS) and the Analysis of Captive Female Baboons’ Space-Behavior Associations

V. K. Bentley-Condit1 and T. Hare2
1Grinnell College, Department of Anthropology, Grinnell College, Grinnell, IA 50112, USA, 2Morehead State University
     Integrated GIS mapping/spatial statistics approaches enhance the examination of space utilization-female behavior relationships among captive olive baboons (Papio anubis). GIS and spatial statistics make possible the rigorous exploration of complex spatial patterns and reveal previously unseen associations. Here, we explore the applicability of these techniques to a sample of 17 lactating females observed and mapped over a 2-month period at the Southwest Foundation for Biomedical Research (n = 593 mapped focal observations). Females were found to use essentially non-overlapping areas of the habitat (Clark & Evans Nearest Neighbor Analysis, z = 17.51, P ≤ 0.0001), to use different areas according to their rank (Kernel Density Analyses, observed value < 0.001, P ≤ 0.0001), and to use different areas according to their age group (Bootstrap Pairwise Analyses: age1-age2 = 5.04, P ≤ 0.0001, age1-age3 = 3.87, P ≤ 0.0001, age2-age3 = 4.73, P ≤ 0.0001). Females also exhibited spatial delineation by behavior. Areas near four particular food hoppers were correlated with feeding by all of the females and kernel density (75%) estimate contours showed that all other behaviors spread inward spatially from those four areas. GIS revealed that rank, age, and within group competition over resources – even in a captive population – shaped the spatial distribution of behaviors and, similarly, spatial distribution shaped both behaviors performed and with whom subjects interacted. We conclude that future studies of primate behavior should address spatial utilization and that GIS provides the means to systematically examine these space-behavior associations.