A successful experiment that turned out to be a failure: lessons from eradicating European Green Crabs

The European green crab wreaks havoc in California estuaries by damaging eelgrass beds, preying upon native species, and competing with other invertebrates for space. In 2009, UC Davis faculty member and EERREC trainer Ted Grosholz and colleagues began an intensive four-year eradication campaign that resulted in removal of 90% of the green crabs in the study area. However, a year later, the population rebounded to nearly triple the pre-eradication population size.

Restoration under rapid environmental change

The urbanized San Francisco Bay, one of the most important coastal estuaries in the U.S., lies at the intersection of efforts to manage and restore critical habitats that support numerous threatened species. Experimental plots in San Francisco Bay have been established to study restoration of two important foundation species: the seagrass Zostera marina and the native Olympia oyster Ostrea lurida.