529197.fig.007
Figure 7: Species composition of snag populations in northern Arizona mixed-conifer and ponderosa pine forest in 1997, 2002, and 2007. Species acronyms: ABCO: white fir, PIPO: ponderosa pine, POTR: quaking aspen, PSME: Douglas-fir, QUGA: Gambel oak, and OTHR: all other species.