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+ <br />Least Turn and Piging Plover nesting habitat xvidths <br />• Unobsu-ucted view width <br />• Water vidtlti and percent relative to unobsta-ucted view width <br />• Unvegetated sandbar width <br />• Percent of nesting season that can provide 5uccessful nesting habitat <br />Forage-fish habitat (channel width for various depth and velocity classes) <br />Wet-meadow water table (number of consecutive days that the water surface exceeds a minimum <br />threshold) <br />RESOURCE LINKAGES <br />Monthly-flow N-olume, season, and location determine daily river flow patterns. <br />River flow, cross-section geometry, and channel roughness determine water depth, velocity, and <br />water width. <br />• Water depth and velocity increase with river flow. <br />• Water depth increases with roughness and velocity decreases with roughness. <br />• Water depth and velocity increase as channel width decreases. <br />Vegetation growth, channel bed forms, and bed-material sediment size determine channel <br />roughness. <br />• Channel roughness increases with vegeiation growth. <br />• Channel roughness increases with bed forms (dunes and ripples). <br />• Channel ronghness increases as bed-material sediments become coarser. <br />Channel velocity, depth, slope, and bed-material sediment size determines sediment transport <br />rates. <br />• Sediment transport rates increase with channel velocity, slope, depth. <br />• Sediment ttansport rates decrease as bed-material sediments become coarser. <br />Longitudinal differences in sediment-transport rates deternune if the wetted cross section will <br />scour or fill. <br />• Erosion will occur if the sediment transport rate is greater than the next upstream cross <br />section. <br />• Deposition will occur if the sediment transport rate is less than the next upstream cross <br />section. <br />Previous scour, water surface elevation, and season will determine if new vegetation can grow. <br />• Scour of old vegetation is required before cottonwood seeds can germinate. , <br />• Riparian vegetation such as cottonwoods, willow, grass, and rush will not establish below <br />the water surface. <br />• Vegetation will only establish and grow during certain seasons. <br />3