Aldo Leopold: The Man and His Legacy |
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acres agriculture Aldo Leopold Aldo's American Angel Island animals Baird Baird Callicott biological biota biotic community birds Burlington Callicott Carl Leopold Charles Darwin concept Conservation Ethic Coon Valley Darwin deer ducks earth ecological ecologists economic ecosystem Ehrenfeld environment environmental ethics erosion essays Estella Evans evolution extended extension of ethics farm farmers fire Flader Forest Service forestry game management Gila holism human hunter hunting idea integrity Iowa Journal land ethic land health land rehabilitation Leopold's land ethic living Luna Leopold ment moral mountain Muir national forests national parks nature organism Ouspensky philosophy plants pold population predators problem professional protection recreation relationship resource management respect River Sand County Almanac Schweitzer scientific Shack social Society soil Southwest species Starker things Thoreau thought tion trees University Press watersheds wild wilderness preservation wildlife management wood duck wrote York