Random Effects Models and Multistage Estimation Procedures for Statistical Population Reconstruction of Small Game Populations

Christopher M Gast, John R Skalski, Jason L Isabelle and Michael V Clawson

PLOS ONE, 2013, vol. 8, issue 6, 1-12

Abstract: Recently, statistical population models using age-at-harvest data have seen increasing use for monitoring of harvested wildlife populations. Even more recently, detailed evaluation of model performance for long-lived, large game animals indicated that the use of random effects to incorporate unmeasured environmental variation, as well as second-stage Horvitz-Thompson-type estimators of abundance, provided more reliable estimates of total abundance than previous models. We adapt this new modeling framework to small game, age-at-harvest models with only young-of-the-year and adult age classes. Our Monte Carlo simulation results indicate superior model performance for the new modeling framework, evidenced by lower bias and proper confidence interval coverage. We apply this method to male wild turkey harvest in the East Ozarks turkey productivity region, Missouri, USA, where statistical population reconstruction indicates a relatively stationary population for 1996–2010.

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0065244

DOI: 10.1371/journal.pone.0065244

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