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In large river ecosystems, the timing, extent, duration and frequency of floodplain inundation greatly affect the quality of fish and wildlife habitat and the supply of important ecosystem goods and services. Seasonal high flows provide connectivity from the river to the floodplain, and seasonal inundation of the floodplain governs ecosystem structure and function. River regulation and other forms of hydrologic alteration have altered the connectivity of many rivers with their adjacent floodplain – impacting the function of wetlands on the floodplain and in turn, impacting the mainstem river function. Conservation and management of remaining floodplain resources can be improved through a better understanding of...
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Collection of 3 assessments for Mainstem Big Rivers. The Condition Index ranks stream segments according to how well they meet the Desired State described qualitatively and quantitatively in the draft Integrated Science Agenda (v4). From the Condition Index 2 assessments are derived that rank opportunities for management and restoration of conditions included in the Condition Index – In-stream habitat diversity (also related to flow), and floodplain/riparian conditions. In-stream management opportunities are based on watershed-level (HUC12) scores for habitat diversity, sinuosity and impoundment conditions such that river segments meeting all desired states are considered Maintenance opportunities (values 5-6)....
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The purpose of this data set is support resource allocation decisions (i.e. where to invest conservation effort) within the Gulf Coastal Plains and Ozarks Landscape Conservation Cooperative. It represents a relative ranking of HUC12 watersheds according to the quantity and quality of habitat as described in the GCPO LCC’s draft Integrated Science Agenda (v4). Watersheds (HUC12) were ranked by calculating the length-weighted average Management Opportunity scores within them. Because the 3 actions are identical for Med/Low-gradient Streams & Rivers of the coastal plains and Upland Streams & Rivers, (and because some watersheds contain both system types), we considered these systems simultaneously and calculated only...
    map background search result map search result map GCPO Inundation Frequency Mosaic (2017) Combined Med/Low-gradient & Upland Streams & Rivers Watershed Ranks Mainstem Big Rivers Grouped Assessments PRMS_Model_IHA_Metrics_Median_Future_Difference Mainstem Big Rivers Grouped Assessments Combined Med/Low-gradient & Upland Streams & Rivers Watershed Ranks GCPO Inundation Frequency Mosaic (2017) PRMS_Model_IHA_Metrics_Median_Future_Difference