We explore the reaction of two resource dependent communities, west Te
xas ranchers and Gulf Coast oyster fishers, to scientific resource man
agement. We examine the criteria these two social groups use to judge
scientific claims, and by extension, scientific resource management. A
lthough scientists rely on factors internal to the scientific enterpri
se (e.g., methodological rigor), natural resource dependent communitie
s such as ranchers and fishers may rely on factors external to the sci
entific process, Such factors include the historical relationship the
community has had with the managing agency, the extent to which scient
ific explanations match local experience, the conceptual fit between m
anagers' and communities' views of the appropriate relationship betwee
n humans and nature, and the resources available to the community to a
rgue against regulation. We conclude that (1) agencies should explore
the possibility of including the experiential knowledge of natural res
ource users where applicable and (2) agencies should recognize that co
mmunication skills can be important as scientific skills in reaching m
anagement goals.