plugin-Earth_122_Ch06_notes

plugin-Earth_122_Ch06_notes - 1/21/2009 Introduction to...

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1/21/2009 1 Introduction to Environmental Science Introduction to Environmental Science: 6. Biomes Earth 122 Prof. Walter A. Illman Biomes Nature never did betray/The heart that loved her. William Wordsworth
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1/21/2009 2 Objectives Recognize the characteristics of major aquatic and terrestrial biomes and understand the most important factors that determine the distribution of each type. Describe the ways in which humans disrupt or damage each of these ecosystem types. Summarize the overall patterns of human disturbance of world biomes as well as some specific, important examples of losses obscured by broad aggregate categories. Objectives Explain the principles and practices of landscape ecology and ecosystem management.
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1/21/2009 3 Outline Terrestrial Biomes Aquatic Ecosystems Freshwater and Saline Ecosystems Wetlands Barrier Islands Human Disturbance Landscape Ecology TERRESTRIAL BIOMES Biomes Areas sharing similar climate, topographic and soil conditions, and roughly comparable communities. Temperature and precipitation are among the most important determinants in biome distribution. Most terrestrial biomes are identified by the dominant plants of their communities.
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1/21/2009 4 Biomes Deserts Characterized by low moisture levels and precipitation that is infrequent and unpredictable from year to year. Wide daily and seasonal temperature fluctuations. Soils are easily disturbed by human activities, and slow to recover. Plants exhibit water conservation characteristics.
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1/21/2009 5 Deserts Grasslands and Savannas Communities of grasses, seasonal herbaceous flowering plants, and open savannas.
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This note was uploaded on 10/31/2011 for the course EARTH 122 taught by Professor Calia during the Spring '08 term at Waterloo.

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plugin-Earth_122_Ch06_notes - 1/21/2009 Introduction to...

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