[1] Calif Polytech State Univ San Luis Obispo, Nat Resources Management & Environm Sci Dept, San Luis Obispo, CA 93407 USA
[2] AMEC Environm & Infrastruct, Eureka, CA 95501 USA
[3] Mt Hood Community Coll, Gresham, OR 97030 USA
[4] City San Luis Obispo, San Luis Obispo, CA 93401 USA
[5] Calif Polytech State Univ San Luis Obispo, Dept Stat, San Luis Obispo, CA 93407 USA
[6] Vantaa Res Ctr, Finnish Forest Res Inst Metla, FIN-01301 Vantaa, Finland