lecture_notes_9_17_07

lecture_notes_9_17_07 - Lecture Notes 9/17/07 BIOCORE...

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Lecture Notes 9/17/07 BIOCORE PRAIRIE: A Prairie Restoration Restoration Ecology : the establishment of ecosystems based on natural models on a site with environmental conditions expected to support them. An activity undertaken to ensure the continuance of natural selection and its products in a setting as free as possible from the influences of "modern" civilization. An underlying aim of most ecosystem restoration projects is conservation , in the sense of ensuring the continuance of dynamic, ever changing natural systems IMPORTANCE OF MODERN HUMAN IMPACT 1. Humans are cosmopolitan 2. Humans are large and numerous 3. Humans use energy and nutrient subsidies 4. Humans are capable of moving quickly, in all directions 5. Humans have created chemicals with which the biosphere has had no previous evolutionary experience HUMAN IMPACT S CAN COVER LARGE REGIONS OF THE EARTH (Fig. 55.21, Campbell) MAJOR TYPES OF MODERN HUMAN IMPACT A. Fragmentation B. Introduction of Exotic Species C. Changes in Populations D. Fire Protection, Hydrological Changes E. Pollution, Trampling, Vandalism, Consumption
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F. Ecosystem Impacts--Global Warming, Changes in Energy Flows and Cycles
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This note was uploaded on 04/29/2008 for the course BIOCORE 301 taught by Professor Howell during the Fall '07 term at Wisconsin.

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lecture_notes_9_17_07 - Lecture Notes 9/17/07 BIOCORE...

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