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Referee report. For: Integrating small population effects on both detection and persistence probabilities in the design and interpretation of presence/absence surveys. [v1; approved with reservations 1, not approved 1, http://f1000r.es/21l]
2014
Determining whether or not a species has been extirpated from part of its range is one of the most important yet difficult challenges facing ecologists. Presence/absence surveys are a primary method to determine local extinction, but negative results are difficult to interpret, particularly when informal sightings appear to support local persistence of elusive species. Such conflicts are particularly likely for rare species, which are the most difficult to detect during a presence/absence
doi:10.5256/f1000research.2649.r5733
fatcat:6vkliliinrg43alm5t35g3pqhy