TY - RPRT TI - Observer-free experimental evaluation of habitat and distance effects on the detection of anuran and bird vocalizations AU - Andrew R. MacLaren AU - Paul S. Crump AU - J. Andrew Royle AU - Michael R. J. Forstner PY - 2018 DO - 10.1002/ece3.4752 UR - https://pubs.usgs.gov/publication/70201721 ID - 70201721 ER -