nelson institute for environmental studies, uw-madison · 2016-08-17 · birge and juday8 state...

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Page 1: Nelson Institute for Environmental Studies, UW-Madison · 2016-08-17 · Birge and Juday8 state that Rickett's survey2 indi- cates that about one half of the annual crop of higher
Page 2: Nelson Institute for Environmental Studies, UW-Madison · 2016-08-17 · Birge and Juday8 state that Rickett's survey2 indi- cates that about one half of the annual crop of higher
Page 3: Nelson Institute for Environmental Studies, UW-Madison · 2016-08-17 · Birge and Juday8 state that Rickett's survey2 indi- cates that about one half of the annual crop of higher
Page 4: Nelson Institute for Environmental Studies, UW-Madison · 2016-08-17 · Birge and Juday8 state that Rickett's survey2 indi- cates that about one half of the annual crop of higher
Page 5: Nelson Institute for Environmental Studies, UW-Madison · 2016-08-17 · Birge and Juday8 state that Rickett's survey2 indi- cates that about one half of the annual crop of higher
Page 6: Nelson Institute for Environmental Studies, UW-Madison · 2016-08-17 · Birge and Juday8 state that Rickett's survey2 indi- cates that about one half of the annual crop of higher