TY - RPRT TI - Role of brown bears ( Ursus arctos ) in the flow of marine nitrogen into a terrestrial ecosystem AU - Grant V. Hilderbrand AU - Thomas A. Hanley AU - Charles T. Robbins AU - C.C. Schwartz PY - 1999 DO - 10.1007/s004420050961 UR - https://pubs.usgs.gov/publication/70169433 ID - 70169433 ER -