How does AHM for black ducks relate to the management of mallards?
Under the mallard competition hypothesis, changes in mallard populations affect the status of black ducks, and thus need to be considered in setting regulations for black ducks. Also, AHM regulations in the U.S. are currently based on the status of mallards. Ultimately, there will be a need to consider how the U.S. regulatory strategy based on mallards might be adjusted to accommodate management objectives for black ducks.
