TY - RPRT TI - Sequential megafaunal collapse in the North Pacific Ocean: An ongoing legacy of industrial whaling? AU - A.M. Springer AU - J. A. Estes AU - Gus B. Van Vliet AU - T. M. Williams AU - D.F. Doak AU - E.M. Danner AU - K.A. Forney AU - B. Pfister PY - 2003 DO - 10.1073/pnas.1635156100 UR - https://pubs.usgs.gov/publication/70025539 ID - 70025539 ER -