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Preserve Design

Preserve Design. Habitat modification has fragmented natural areas into isolated patches. Stewardship of remaining habitat is crucial. the 1st preserves were hunting reserves for royalty. America’s 1st preserves were created as geologic attractions: Yosemite, Grand Canyon, Yellowstone

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Preserve Design

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  1. Preserve Design • Habitat modification has fragmented natural areas into isolated patches. • Stewardship of remaining habitat is crucial. • the 1st preserves were hunting reserves for royalty. • America’s 1st preserves were created as geologic attractions: Yosemite, Grand Canyon, Yellowstone • Many preserves do not effectively capture critical biotic regions. • Generally, preserves are marginal lands.

  2. Considerations in Preserve Design: the New Paradigm of Disequilibrium • A unit of nature is not easily conserved in isolation from it’s surroundings. • Reserves will not maintain themselves in a stable, balanced configuration • Reserves may incur disturbances.

  3. More Considerations in Preserve Design • ecological systems are not internally self-regulating • as reserves become smaller disturbances may become destructive. • should preserves disrupt the cultures of indigenous peoples? • ecological Processes W/I a preserve may be threatened by land uses surrounding the preserve. • reserves should be as large as possible; recall the species area relationship.

  4. Minimum Dynamic Area • Reserve size should be based on the smallest area with a complete, natural disturbance regime. • Inhabitants must be able to move among similar patches.

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