[1] Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA
[2] Portland State Univ, Dept Geog, Portland, OR 97201 USA
[3] Univ Waterloo, Sch Planning, Waterloo, ON N2L 3G1, Canada
[4] Fac Environm, Waterloo, ON N2L 3G1, Canada
[5] Columbia Univ, Barnard Coll, Dept Environm Sci, New York, NY 10027 USA
[6] Georgia State Univ, Urban Studies Inst, Andrew Young Sch Policy Studies, Atlanta, GA 30303 USA
[7] 1721 SW Broadway, Portland, OR 97201 USA