An estimated trade of between wildlife and livestock in one ranching area of Kenya

A good bit of speculation and a number of empirical studies have been directed at the forage consuming relationships between cattle and wild herbivores. The physical production information produced by such studies should tell us the pounds of biomass of domestic herbivores which substitute for a pound of wild herbivores or vice versa. The economic information produced by such studies should express the substitution relationship in terms of net profits to the enterprise. That is, moving from one combination of game and livestock to another combination should be translatable in terms of the effect on profits. Obviously, to complete the economic analysis requires more information than is required to state the physical result. By the same token, more information is required to state the physical result as pounds of liveweight yield than is required to state the result as pounds of biomass carried.