[1] Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA
[2] Salisbury Univ, Econ & Finance Dept, Salisbury, MD USA
[3] S Dakota State Univ, Geog Informat Sci Ctr Excellence, Brookings, SD 57007 USA
[4] Salisbury Univ, Dept Geog & Geosci, Salisbury, MD USA
[5] Inst Homem & Meio Ambiente Amazonia, Belem, Para, Brazil
[6] N Carolina State Univ, Dept Forestry & Environm Resources, Raleigh, NC 27695 USA