Current habitat area is comparatively much less in the San Pablo Bay marshland. Very few local extant tidal marshes have true undisturbed marsh vegetation, and even fewer border significant upland areas where marshland species can seek refuge from flooding.
In comparison to its original habitat, the current living space of this species is much smaller in the San Pablo Bay wetlands. There are very few remaining local tidal marshes with their natural vegetation intact, and even fewer areas where marshland animals can find refuge from flooding by connecting with higher ground.