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Ranging behavior has been studied extensively in eastern ( Pan troglodytes schweinfurthii)  and western ( P. t. verus ) chimpanzees, but relatively little is known regarding home ranges of the other two subspecies ( P. t. ellioti; P. t. troglodytes ). In this study, we determined the home range size and space use of a habituated community (Rekambo) of central chimpanzees living in a habitat mosaic in Loango National Park, Gabon. Data on travel routes were collected during follows between January 2017 and April 2019 ( N  = 670,616 relocations, collected over 640 days and 5690 h of observation). We used three methods for calculating home range size (minimum convex polygon, kernel density estimation, and biased random bridges). We compare our estimates to those obtained from prior genetic and camera trap studies of the Rekambo community and contrast them with estimates from other chimpanzee communities of the four chimpanzee subspecies. Depending on the methodology used, the home range size of the Rekambo community ranged between 27.64 and 59.03 km 2 . The location of the center of the home range remained relatively stable over the last decade, while the overall size decreased. The Rekambo home range is, therefore, one of the largest documented so far for chimpanzees outside savannah-woodland habitats. We discuss several explanations, including the presence of savannah, interspecies competition, and intercommunity interactions.   Supplementary Information  The online version contains supplementary material available at 10.1007/s10329-021-00927-5.

Home range size in central chimpanzees (Pan troglodytes troglodytes) from Loango National Park, Gabon