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Table I. Evaluation of Program Effects on Whooping Crane <br />12 <br />Potential Sources of Current and <br />Possible Analysis <br />Future Data <br />Methods' <br />Time Frame <br />Data Needs sandbar /shoreline <br />Transects across selected areas affected by land <br />0 Trend analyses <br />pre -post land <br />vegetation: <br />management activities- at and downstream of <br />0 Sediment/ vegetation <br />management activity; <br />Species composition <br />treatment area <br />model <br />post- land <br />Height <br />management repeated <br />Density <br />annually <br />Data Need: <br />pre -post land <br />Discharge <br />0 USGS gaging station (nearest to eatment) <br />management activity; <br />Flow velocity <br />0 Permanent transects <br />post- land <br />management repeated <br />annually <br />B. Bottom land Feeding and Loafing Habitat <br />1) Program water management/wet meadows <br />Trend analysis <br />Daily, February-June, <br />Data Need: <br />USGS gaging stations <br />10 -13 years <br />Discharge during February through <br />Records of timing and magnitude of EA releases <br />June <br />2) Flow /stage relationships <br />Data Needs: <br />USGS gaging stations <br />February - June, 10 -13 <br />Discharge <br />Stilling wells and recorders located in bridge <br />yrs <br />River stage <br />segments away from bridges (preferred) <br />Data Needs/ channel morphology: <br />Permanent Tansects <br />Trend analyses <br />Annually, 10 -13 yrs. <br />Water Depth <br />Sediment/vegetation <br />Continuous active channel width <br />model <br />Wetted width <br />Bed samples (grain size) <br />12 <br />