Browsing Artículo Científico by Author "Gates, Robert J."
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Evaluation of Three Methods to Estimate Density and Detectability From Roadside Point Counts
Murray, Les D.; Gates, Robert J.; Spinola, R. Manuel (Universidad Nacional, Costa Rica., 2011)Roadside point counts are often used to estimate trends of bird populations. The use of aural counts of birds without adjustment for detection probability, however, can lead to incorrect population trend estimates. We ...