Fitting and Interpreting Occupancy Models

@inproceedings{Welsh2013FittingAI,
  title={Fitting and Interpreting Occupancy Models},
  author={A. H. Welsh and David B. Lindenmayer and Christine F. Donnelly},
  booktitle={PloS one},
  year={2013}
}
We show that occupancy models are more difficult to fit than is generally appreciated because the estimating equations often have multiple solutions, including boundary estimates which produce fitted probabilities of zero or one. The estimates are unstable when the data are sparse, making them difficult to interpret, and, even in ideal situations, highly variable. As a consequence, making accurate inference is difficult. When abundance varies over sites (which is the general rule in ecology… CONTINUE READING
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