TY - RPRT TI - Do observer fatigue and taxon-bias compromise visual encounter surveys for small vertebrates? AU - Bjorn Lardner AU - Amy A. Yackel Adams AU - Adam J Knox AU - Julie A. Savidge AU - Robert Reed PY - 2019 DO - 10.1071/wr18016 UR - https://pubs.usgs.gov/publication/70215995 ID - 70215995 ER -