Observed reproductive status and estimated den entrance and emergence data for radio-marked females and estimated birth dates of offspring for four grizzly bear populations in North America, 2011-2021

This data release contains the observed reproductive status and estimated den entrance and emergence data for 114 radio-marked female grizzly bears and the estimated birth dates of offspring for four populations in North America collected from 2011-2021. The studied populations inhabited the Greater Yellowstone Ecosystem, Northern Continental Divide Ecosystem, Selkirk and Cabinet-Yaak Ecosystems, and Gates of the Arctic National Park and Preserve.