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Table II. Interior Least Tern - R3 -1 Data Needs and Monitoring Reference Codes <br />USFWS, r3 ltabmref0413.wpd Page 14 of 24 April 13, 2001 <br />Monitoring <br />Potential Sources <br />Possible Analysis <br />Reference Code <br />of Current and <br />Methods' <br />Time Frame <br />c) Project level land management <br />Pre- and post- land <br />Data Needs channel morphology: <br />Transects across <br />0 Trend analyses <br />management <br />Water Depth <br />LT /PP - LANDS <br />selected areas <br />0 Sediment/ vegetation <br />activity; post- land <br />Active channel width <br />LT /PP - LANDS <br />affected by land <br />model <br />management <br />Wetted width <br />LT /PP - LANDS <br />management <br />repeated annually <br />Height of sandbar (cleared) <br />LT /PP - LANDS <br />activities - <br />Volume of sediment added <br />Research <br />upstream, through <br />(island leveling, channel <br />and downstream of <br />widening) <br />treatment area <br />Data Needs- sandbar /shoreline <br />Transects across <br />0 Trend analyses <br />pre -post land <br />_ vegetation: <br />selected areas <br />0 Sediment/ vegetation <br />management <br />Plant class composition (grass, <br />affected by land <br />model <br />activity; post- land <br />forbs, woody) <br />LT /PP -06 -W <br />management <br />management <br />Height <br />LT /PP -06 -W <br />activities- <br />repeated annually <br />Density <br />LT /PP -06 -W <br />upstream, through <br />and downstream of <br />treatment area <br />Data Needs <br />USGS gaging <br />Monitoring on an <br />Discharge <br />✓ <br />station (nearest to <br />ongoing basis <br />treatment) <br />• Permanent <br />transects <br />B. Program effects on Least Terns (Species <br />Response) _J <br />USFWS, r3 ltabmref0413.wpd Page 14 of 24 April 13, 2001 <br />