Appendix A. Photos and text describing an example of the formation and destruction of a large bed of the mussel Mytilus trossulus at a Cape Perpetua site, Tokatee Klootchman; a map showing study sites along the Oregon coast; and figures showing changes in abundance of two mussel species at two zones at two sites, annual recruitment rates of mussels and barnacles in the mid zone at Boiler Bay (BB) and Strawberry Hill (SH) from 1989–2008, barnacle and mussel recruitment during the period of...

Photos and text describing an example of the formation and destruction of a large bed of the mussel Mytilus trossulus at a Cape Perpetua site, Tokatee Klootchman; a map showing study sites along the Oregon coast; and figures showing changes in abundance of two mussel species at two zones at two sites, annual recruitment rates of mussels and barnacles in the mid zone at Boiler Bay (BB) and Strawberry Hill (SH) from 1989–2008, barnacle and mussel recruitment during the period of the facilitation experiment, 2006–2007, photos showing barnacle and mussel abundances in the presence and absence of barnacles at an early successional stage, and a photo showing an extremely large disturbance at BB in the wave-exposed mid intertidal zone.