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Unformatted text preview: s Human activities alter the chemical and physical nature of the environment (the abiotic conditions) This affects us and other species on the planet Many human activities have a direct effect on the biotic components of ecosystems Altering Biotic Factors Introduction of foreign species These species may proliferate without control, causing major economic and environmental damage CH05-24 Simplifying Ecosystems Tampering with abiotic and biotic factors tends to reduce species diversity simplifies ecosystems Makes them considerably more vulnerable to natural forces CH05-25 Why Study Impacts? Permits us to select the least harmful and most sustainable development options CH05-26...
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This note was uploaded on 04/17/2008 for the course ENVIRON MN 0630.201.0 taught by Professor Lisagreenwood during the Winter '07 term at RIT.
- Winter '07