What is it about?
One likely misses birds during line transects, especially in forested environments, as much of the detectability is due to birds vocalising. We calculate what we were missing by quantifying call rates of visible birds from exposed locations.
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Perspectives
Accurate density estimates are needed for populations estimates... important for making informed conservation decisions.
Dr Alan Tristram Kenneth Lee
University of Cape Town
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This page is a summary of: The Influence of Habitat, Season, and Detectability on Abundance Estimates across an Amazonian Parrot Assemblage, Biotropica, January 2012, Wiley,
DOI: 10.1111/j.1744-7429.2011.00847.x.
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