Differential investment in offspring has been reported for many mammals, often in the context of the Trivers–
Willard model of male-biased investment, but evidence of differential investment in pronghorns (Antilocapra
americana) is largely lacking. We assessed the causes and consequences of different birth masses of littermate
fawns in a pronghorn...
Aspects of bison ecology and behavior were studied in the Henry
Mountains, Utah during summer 1977 and summer 1978. Foraging
distributions of bison and of cattle were compared to elevation, slope,
horizontal distance from water, vertical distance from water, aspect,
and availability of preferred forage. The effect of bison-cattle
interactions...
