env geo

Yellowstone national park

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first national park in the world

preserves extensive wilderness

try to make it as it was before human habitation

demands and dangers for our parks

many parks are islands of nature surrounded and threatened by destuctive land uses and humans


traffic jams and pollution b/c of how crowded some can get


visitors demand services


mining and oil interests try to get permissions to drill in the parks

biogeographical area

an entire ecosystem and its land, water, air, and wildlife resources


this must be managed as a unit

old-growth forests

forests that cover a large enough area and have been undisturbed by humans long enough that trees can live out a natural life cycle and ecological processes can occur normally
the International Union for the Conservation of Nature and Natural
Resources (IUCN)
divides protect