Many wildlife populations cause damage in agricultural systems but are also
valued resources, either for their recreational value or for their existen
ce and contribution to biological diversity. As a result, the nature of a g
iven species-whether it is considered a "pest" or a "resource"-is often det
ermined by the economic and regulatory environment in which the species exi
sts. In this paper we develop a bioeconomic model of one such environment.
We apply the model to the case of feral pigs in California rangeland and co
nsider the potential for recreational hunting as a policy for population co
ntrol. (C) 2000 Academic Press.