Cascadia Wildlands

GPS-collar failures hinder wolf-tracking in Oregon

The minimum known wolf population in 2016 was 112, a 2 percent increase from 2015, the report said. That’s much smaller than the previous three years in which the population increased by 27, or 36 percent. The weak increase could be caused by wolves being present but not counted, decreased births, human-caused deaths, diseases affecting pups, and wolves leaving the state, the report said.