What is it about?
Automated recorders have the potential to collect hundreds of hours of bird song from remote locations: much more than can be realistically listened to by humans. We tested a method for efficient sub-sampling of sound files that can reduce by 34% the time required to obtain accurate estimates of a species' calling prevalence. The same method of sub-sampling also captures a greater diversity of species than equivalent effort put into continuous listening.
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Why is it important?
Bird populations are important indicators of environmental change that can help guide many habitat management decisions. Obtaining accurate estimates of bird populations, however, can be time-consuming. This method helps to improve the quality of information that can be extracted using automated recorders and a limited time-budget for listening to the sound files.
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This page is a summary of: Efficient sampling of avian acoustic recordings: intermittent subsamples improve estimates of single species prevalence and total species richness, Avian Conservation and Ecology, January 2018, Resilience Alliance, Inc.,
DOI: 10.5751/ace-01221-130121.
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