Photo credit Frank T. van Manen/IGBST

NOTICE: The U.S. Fish and Wildlife Service’s June 30, 2017 final rule delisting the Greater Yellowstone Ecosystem grizzly bear population was vacated and remanded by the court on September 24, 2018.  Therefore, grizzly bears throughout the lower 48 States are listed as threatened except where designated as an experimental population

Final Signed Conservation Strategy

NEW! Download “Interagency Grizzly Bear Study Team Research and Monitoring Summary 2018” here

Yellowstone Ecosystem Subcommittee (YES) & Yellowstone Grizzly Coordinating Committee (YGCC) Meetings

Please refer to the Meeting Calendar for upcoming meetings of the

Meeting Summaries

Yellowstone Ecosystem Subcommittee (2018-2019)

Yellowstone Grizzly Coordinating Committee (2017-2018)

Yellowstone Ecosystem Subcommittee (2016-2017)

Yellowstone Ecosystem Committee Membership

  • Tricia O’Conner (Chair) Bridger Teton National Forest, Jackson, WY
  • Mike Volesky Montana Fish, Wildlife and Parks, Helena, MT
  • Kim Liebhauser BLM-Wyoming, Cody, WY
  • Melany Gossa Beaverhead Deerlodge National Forest, Dillon, MT
  • Derek Ibarguen Caribou-Targhee National Forest, Idaho Falls, ID
  • Lee Miller Idaho Association of Counties
  • Lisa Timchak Shoshone National Forest, Cody, WY
  • David Vela Grand Teton National Park Jackson, WY
  • Dan Wenk Yellowstone National Park, Yellowstone Nat’l Park, WY
  • Jim White Idaho Dept of Fish and Game, Idaho Falls, ID
  • Brian Nesvik Wyoming Dept of Game and Fish, Cheyenne, WY
  • Tom Rice Montana Association of Counties, Beaverhead County, Dillon, MT
  • Lee Livingston Wyoming Park County Commission, Cody, WY
  • Leander Watson Shoshone Bannock Tribes, Fort Hall, ID
  • Mary Erickson Custer-Gallatin National Forest, Bozeman MT
  • Rick Hotaling BLM – Montana Dillon, MT
  • Mary D’Aversa BLMIdaho Falls, ID

Yellowstone Ecosystem Information & Education Subcommittee

  • Danielle Oyler (Chair) Wildlife Management Institute 
  • Morgan Warthin Yellowstone National Park
  • Danielle Chalfant Oyler Southwest Montana Bear Education Working Group
  • Dustin Lasseter Wyoming Game and Fish Department
  • Denise Germann Grand Teton National Park
  • Kimberly Johnston People and Carnivores
  • Laurie Wolf Montana Fish, Wildlife & Parks

Advisors to the Yellowstone Ecosystem Subcommittee

  • Dan Tyers USFS Greater Yellowstone Ecosystem Grizzly Bear Mgmt Coordinator, Bozeman, MT
  • Frank van Manen Interagency Grizzly Bear Study Team Bozeman, MT
  • Hilary Cooley USFWS Liaison
  • Kelsie Dougherty Administrative Coordinator, Montana Fish, Wildlife & Parks, Bozeman, MT

Policy and Research Reports

NEPA Documents

Grizzly Bear Recovery Plan: Draft Supplement: January 29, 1982 and Revised Plan September 10, 1993
Draft 2016 Conservation Strategy for the Grizzly Bear in the Greater Yellowstone Ecosystem


  • Yellowstone Grizzly Coordinating Committee Charter
  • 2006 Forest Plan Amendment for Grizzly Bear Habitat Conservation for the Greater Yellowstone Area National Forests
    In April 2006, the Forest Service amended six forest plans on six Greater Yellowstone Area national forests (Beaverhead-Deerlodge, Bridger-Teton, Caribou-Targhee, Custer, Gallatin, and Shoshone National Forests) to incorporate the habitat standards and other relevant provisions in the Final Conservation Strategy for the Grizzly Bear in the Greater Yellowstone Area. The Record of Decision (ROD) presents the three principal reasons officials selected Alternative 2-Modified. In addition, the decision document describes the public involvement process and issues, and other alternatives considered. The amendment to the six forest plans is contained in the appendix of the decision document.


NOTE: The Interagency Grizzly Bear Study Team (IGBST) is an interdisciplinary group of scientists and biologists responsible for long-term monitoring and research efforts on grizzly bears in the Greater Yellowstone Ecosystem (GYE). The full list of their publications can be found on the IGBST website.

Yellowstone Ecosystem Description