White rhinoceros range size was ascertained telemetrically in the sout
h-western Kruger National Park. The mean annual range size of territor
ial males was 9.86 km2 compared to 22.83 km2 for adult females. White
rhinoceros females' summer wet season range was larger (21.44 km2) tha
n the winter dry season range (11.64 km2). It is argued that abundant
field-water during the wet season enables animals to range further fro
m permanent water supplies and to utilize larger foraging areas. White
rhinoceros have core areas in their individual ranges that usually ar
e situated along riverbanks in the preferred grazing regions. These co
re areas also include some favourite resting spots on high-lying areas
. White rhinoceros range sizes in the south-western Kruger National Pa
rk were similar to those of other reserves with comparable white rhino
ceros densities. In the Umfolozi Game Reserve, which has a higher whit
e rhinoceros density than the Kruger National Park, the individual ran
ges are much smaller.