TY - RPRT TI - Simulating the effort necessary to detect changes in northern spotted owl (Strix occidentalis caurina) populations using passive acoustic monitoring AU - Damon B. Lesmeister AU - Cara L. Appel AU - Raymond J. Davis AU - Charles B. Yackulic AU - Zachary J. Ruff PY - 2021 UR - https://pubs.usgs.gov/publication/70223721 ID - 70223721 ER -