... municipal agencies, Native Americantribes, conservation organizations, and private corporations from Arizona,Baja California, California, and Sonora pored over maps, compared notes,and argued ... hunters. Scale also matters: a hedgerow makes a fine corridor for a hedgehog or a field mouse; a landscape full of barriers impassable to a bear has countless small habitats suitable for a beetle. So ... populations viable. InNorth America, few places are under as great pressure as Orange County,California, and it is there that the idea of a connected landscape has had a true test.the pumas...