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Table II. Interior Least Tern - R3 -1 Data Needs and Monitoring Reference Codes <br />USFWS, r31tabmrefO413.wpd Page 15 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 />1) Land and water management/ breeding bird <br />distribution and abundance <br />Data Needs: <br />Breeding bird <br />Trend analyses <br />Annually, 10 -13 <br />Number of breeding pairs <br />LT /PP -01 -S <br />surveys in the <br />years <br />Distribution of breeding pairs <br />LT /PP -0 1 -S <br />central Platte <br />(riverine and <br />sandpit) <br />12) Program effects of changes in land and flow <br />management on tern reproductive rate <br />Estimate of frequency of nest <br />0 USGS gaging <br />Videography <br />3 or more time per <br />inundation: <br />stations <br />summer; 10 -13 <br />Discharge <br />0 Breeding bird <br />years <br />Timing -of nest initiation <br />LT/PP-0 1 -S <br />surveys in the <br />central Platte <br />(riverine and <br />sandpit) <br />Estimate of: <br />Breeding bird <br />Weekly surveys (at <br />Nest success <br />LT /PP -03 -S <br />surveys in the <br />minimum) during <br />Fledge success <br />LT /PP -04 -S <br />central Platte <br />the breeding <br />Incidence of predation, <br />LT /PP -05 -S <br />(riverine and <br />season, 10 -13 <br />Incidence of nest inundation <br />LT /PP -06 -S <br />sandpit) <br />years <br />USFWS, r31tabmrefO413.wpd Page 15 of 24 April 13, 2001 <br />