Biologists with the Interagency Grizzly Bear Study Team begin conducting scientific grizzly bear research operations in Yellowstone National Park from Wednesday through October 31, as part of an ongoing monitoring of activities and population of grizzly bears within the Greater Yellowstone Ecosystem. Park Spokesman Al Nash says team members will bait and trap bears at several remote sites within Yellowstone National Park. Once trapped, the bears are anesthetized to allow wildlife biologists to radio-collar and collect scientific samples for study. All trapping and handling are done in accordance with study team’s long established protocols. Nash assures that none of the trap sites in the park will be located near any established hiking trails or backcountry campsites, and all trap sites will have posted warnings for the closure perimeter. He says potential access points will also be posted with warning signs for the closure area. Backcountry users who come upon any of these posted areas need to heed the warnings and stay out of the area.