Time-of-detection Method for Estimating Abundance from Point-count Surveys

  title={Time-of-detection Method for Estimating Abundance from Point-count Surveys},
  author={Mathew W. Alldredge and Kenneth H. Pollock and Theodore R. Simons and Jaime Agustin Collazo and Susan A Shriner},
—Point-count surveys are o en used to collect data on the abundance and distribution of birds, generally as an index of relative abundance. Valid comparison of these indices assumes that the detection process is comparable over space and time. These restrictive assumptions can be eliminated by estimating detection probabilities directly. We generalize a recently proposed removal model for estimating detection probabilities using a time-of-detection approach, which can account for more sources… CONTINUE READING
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