TY - RPRT TI - Beaver colony density trends on the Chequamegon-Nicolet National Forest, 1987 – 2013 AU - Christine Ribic AU - Deahn M. Donner AU - Albert J. Beck AU - David J. Rugg AU - Sue Reinecke AU - Dan Eklund PY - 2017 DO - 10.1371/journal.pone.0170099 UR - https://pubs.usgs.gov/publication/70193673 ID - 70193673 ER -