envs 100 lecture 4 - CASE STUDY I Part 1 The Endangered...

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CASE STUDY I Part 1 The Endangered Species Act (ESA) within the changing landscape of American conservation ENVS 100 Thursday, September 30
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Conservation in a changing world Climate change, and the new challenges it poses to ecologists & land managers working to Changes in the global N (nitrogen) cycle, and their implications for forest, grassland, and desert ecosystems The global, human-driven re-mixing of biota (i.e. the problem of non-native species & biological invasions) – how do we manage ecosystems in the face of such profound & often irreversible disruption?
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The changing world of conservation Changing economic interests & changing uses of nature from “ reclamation ”to conservation Changing access to natural resources, and changing philosophies governing natural resources Changing scientific knowledge
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Manifest destiny
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Our changing understanding & relationship to wetlands Current understanding & valuation of wetlands: Nutrient cycling High primary productivity Critical habitat for a vast diversity of species Ecosystem services Water purification (aquifers) Flood control (natural “sponges”) Erosion control (sediment regulation by wetland vegetation) Recreation
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Our changing understanding & relationship to wetlands
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Progressivism – the “gospel of efficiency” Sustainable use of natural resources for the benefit of the people Scientific management for sustainable use – Gifford the conservation of the nation's reserves by planned use and renewal "the art of producing from the forest whatever it can yield for the service of man." Conservation v. Preservation
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Yellowstone National Park (1872)
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John Muir & a new relationship to American wilderness “Everybody needs beauty as well as bread, places to play in and pray in, where nature may heal and give strength to body and soul.” “The clearest way into the Universe is through a forest wilderness.” “In every walk with nature one receives far more than he seeks.” “When we try to pick out anything by itself, we find it hitched to everything else in the universe.”
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This note was uploaded on 09/15/2011 for the course ENVS 100 taught by Professor Zavaleta,e during the Fall '08 term at University of California, Santa Cruz.

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envs 100 lecture 4 - CASE STUDY I Part 1 The Endangered...

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