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T2. Fledge Ratio for terns on existing habitats <br />1.2- <br />1- <br />0.8- <br />0.6- <br />0.4- <br />0.2- <br />0 <br /> <br /> <br /> ? <br /> 0.7 FI e tio G al <br /> c <br /> m a a <br /> <br /> ? .? <br /> <br /> ? 0) <br /> cu <br /> c c <br /> E <br /> <br /> <br /> co <br /> U) <br /> <br />? ? <br /> m <br /> a ? <br /> ? - ?. <br /> <br /> <br /> 3 <br />0 <br />J ? J J V U <br />The NAS report indicates the Platte River is a sink (p218) and tern populations are <br />actually better off if none nest on the Platte. If 0.70 fledge ratio is necessary for <br />population maintenance Lutey supports that contention. Need to insure that any <br />new habitat has fledge ratios which support population. NAS indicates need to <br />determine Platte populations with metapopulation. <br />Subgraphs likely apply to reproductive success as well as use but I did not <br />duplicate them and change y axis title. The above data could be used to predict <br />reproductive success it appears only predator management has desired effect as <br />no unmanaged habitats meet goals.