干旱区生态环境知识资源中心

Movements of seven pronghorn were monitored in Chihuahuan Desert using radio telemetry to determine closest distance to water, home range size and habitat use. Distance to closest water source for all seasons averaged 2,667 +/- 164 m. Adults ranged farther from water sources during summer than fall, winter or spring. Home range size for all animals averaged 2,259 +/- 656 ha and ranged from 938 to 3,773 ha. Yearlings had larger home ranges than adults, but ranges did not differ between males and females. Pronghorn showed a preference for grass-mesquite-yucca and grassland communities but mesquite communities were important for fawning.