| The Presidio of San Francisco is a national park site on the south side of the Golden Gate Bridge. Mountain Lake is a natural lake in its boundaries. The lake's fauna had been replaced with non-native species, and the lake ecosystem greatly disturbed through filling and pollution. Re-stablish the natural ecosystem required support for controversial methods including using rotenone to remove non-native species and dredging the lake to remove toxic pollutants. Now, it requires support of the community for changes in behavior such as not releasing non-natives (pets) back into the lake. The variety of approaches used to get support from the local community, politicians, regulatory agencies, advocacy groups and the media will be discussed as well as overcoming constraints for re-establishing Anadota mussels, three-spine stickleback, western pond turtle, and chorus frogs. |