The Presidio Bluffs habitat restoration includes invasive tree and
plant removal throughout the coastal bluffs, as well as reforestation and management of native tree species, such as toyon, madrone, and manzanita.
Throughout the experiment, they measured the effects of each species mix on three important salt marsh functions: overall grass growth (productivity); the rate of dead
plant removal (decomposition); and how fast tidal or storm surge water percolated through the marsh (filtration).