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Show Great Salt Lake Social/ Physical/ Ecological Subsystem Interactions GSL Social/ Economic Factors • Wasatch Front Growth/ Urbanization/ Land Use. • Societal Values Environment vs. Economy, etc. • Wastewater Production/ Disposal. • Policy/ Management* pumping, upstream use, etc. • Costs/ Benefits of Management Alternatives. Flooding, minerals, jtfwuesandlaxes/ Brine shrimp harvest/ revenues, . tourism, lake odors, alp. GSL Physical Factors • Global Climate • Basin Hydrology • Lake Volumes/ Levels • Water • Chemistry/ Nutrients/ Salinity/ Temperature « wrriv " •••••• f••-(<• f Lake chemistry impacts^ on phytoplanktom and , brine shrimp, lake level/ impacts on wetlands, . habitats and birds; GSL Ecological/ Biotic Factors • Bacteria/ Phytoplankton Population Dynamics • Brine Shrimp population Dynamics • Riparian Species/ Wetlands Habitats Figure 11: Great Salt Lake Subsystem Interactions and Management Problems ( SRC, unpub.). These linkage are best depicted by studying cause- and- effect chains. ( Figure 12 is a simplified example of GSL systems biological linkages.) Understanding cause- and- effect chains and their interconnected linkages helps resource managers identify potential management tools. Figure 12: View of GSL Ecosystem ( USGS, 1999) |