TY - RPRT TI - Time marches on, but do the causal pathways driving instream habitat and biology remain consistent? AU - Richard H Walker AU - Matthew J. Ashton AU - Matthew J. Cashman AU - Rosemary M. Fanelli AU - Kevin P. Krause AU - Gregory B. Noe AU - Kelly O. Maloney PY - 2021 DO - 10.1016/j.scitotenv.2021.147985 UR - https://pubs.usgs.gov/publication/70220862 ID - 70220862 ER -