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? <br />LIST OF TABLES <br />Table <br />PaQe <br />1 Organizations and agencies represented on <br />. the workgroups of the Platte River <br />Management Joint Study ........................... 2 <br />2 Occurrence periods foi^ endangered and <br />threatened species in the Platte River <br />between Overton and Gr.and Island, Nebraska ....... 4 <br />3 Observations of whooping cranes on the <br /> Platte River in spring, 1912-1988 ................ 8 <br />4 Observations of whooping cranes on the • <br /> Platte River, 1907-1988 .......................... 10 <br />5 Interior least tern breeding populations <br /> • along the Platte River, 1975-1988 .......... ..... 14 <br />6 Summary of piping plover breeding <br /> populations on the Platte River, 1979-1988 ....... 17 <br />7 Midwinter bald eagle counts by river <br />segment, 1982-1988 ..................... ......... 20 <br />8 Percentage of acres in open channel, <br />riverine grassland, and cropland in 14 <br />bridge segments .................................. 21 <br />9 Causes of egg loss at least tern-colonies <br />along the Platte River, 1984 and 1986 ............. 24 <br />10 Flow changes (in cfs) at three stream <br />gaging stations in the-Big Bend reach of <br />the Platte River during late June and <br />early July 1988 ................................... 26 <br />11 Unobstructed channel widths reported at . <br />41 whooping crane riverine roost sites ........... 34 <br />12 Mean values for physical characteristics <br />of sandbars used for nesting by least terns <br />and piping plovers and some nest <br />characteristics ................................... 38 <br />13 Species composition and relative abundance <br />of fish species sampled at 23 least tern <br />foraging sites near the Jeffrey Island colony <br />on the Platte River in 1985 ....................... 39 <br />4 <br />iv