[1] Michigan State Univ, Ctr Global Change & Earth Observat, E Lansing, MI 48824 USA
[2] Int Livestock Res Inst, Nairobi, Kenya
[3] Michigan State Univ, Dept Geog, E Lansing, MI 48824 USA
[4] Michigan State Univ, Coll Social Sci, E Lansing, MI 48824 USA
[5] Purdue Univ, Dept Forestry & Nat Resources, W Lafayette, IN 47907 USA
[6] Michigan State Univ, Dept Stat & Probabil, E Lansing, MI 48824 USA
[7] NOAA, Great Lakes Environm Res Lab, Ann Arbor, MI 48105 USA
[8] Univ Illinois, Dept Math Stat & Comp Sci, Chicago, IL 60607 USA