Canonical correspondence analysis (CCA) axes 1 and 2 biplots.

<p>The vegetation is ordinated with three 1971–2000 climate indices, continentality (IC_B71), ombrotype (IC_B71), and thermotype (TMO_B71). The eigenvalue vectors for the indices are superimposed on the CCA-biplot ordination to indicate relative influence of each index on species abundance and distribution. Vegetation codes: alkali desert scrub (AD.SCRB), blue oak-foothill pine (BO.PINE), blue oak woodland (BO.WOOD), coastal scrub (C.SCRB), closed-cone pine-cypress (CCP.CYP), coastal oak woodland (CO.WOOD), chamise-redshank chaparral (CR.CHP), Douglas-fir (D.FIR), desert scrub (D.SCRB), Jeffrey pine (J.PINE), juniper (JUNIPR), Klamath mixed conifer (KM.CON), montane chaparral (M.CHP), montane hardwood (M.WOOD), montane hardwood-conifer (MH.CON), mixed chaparral (MX.CHP), perennial grassland (P.GRSS), ponderosa pine (P.PINE), red fir (R.FIR), redwood (RDWD), sierran mixed conifer (SM.CON), valley oak woodland (VO.WOOD), white fir (W.FIR).