Previous research in northeastern Minnesota reported declining population projections despite the annual survey not yet revealing the decline (Lenarz et al., 2010 ), suggesting that a large increase in the population may be required before a significant change in the survey's point estimates is observed versus an increasing trend.
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Comparing survey and multiple recruitment-mortality models to assess growth rates and population projections.
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The sentences
Two of these projections predicted an increasing population and 2 indicated a decreasing trend.