UGA researchers to study black bears in central Georgia
uga news service
Georgia Black BearThe Georgia Wildlife Resources Division through the Wildlife Restoration Program has committed $324,000, and the Georgia Department of Transportation is funding the research at $377,000. The joint project is expected to take three years. Michael Chamberlain, Karl Miller and Robert Warren—all wildlife researchers at the Warnell School—will be conducting the study with graduate students Mike Hooker and Josh Sylvest.
Black Bears will look to cross roads
As part of the research, black bears will be trapped, tagged for radio-telemetry tracking and identified by their DNA using hair samples, and their dens will be monitored.
“The bear population in middle Georgia is among the most isolated populations in the southeastern U.S., so it is particularly susceptible to changes in land use and human activities,” Chamberlain said. “To ensure sustainable management of this bear population, it is critical to keep tabs on patterns of survival and reproduction and to assess how environmental factors influence this sustainability.”
The black bear population in the U.S. is very fragmented, he said, and the area it once occupied is now 90 percent uninhabitable to the bears. Most populations are found on public land.
Georgia has three distinct black bear populations: in the Appalachian Mountains, near the Ocmulgee River drainage system and near the Okefenokee Swamp. The Ocmulgee population numbers about 300 bears, although an earlier estimate put that figure at 200. The Warnell School researchers plan to conduct another population estimate on black bears within the Ocmulgee River region, including private land in Twiggs, Houston, Bibb, Bleckley and Pulaski counties. They also plan to assess the survival rates and the reproductive ecology by studying den selection, cub production and cub survival.
Researchers are also investigating ways to minimize potential effects of the widening of state Route 96. This 15-mile section will be expanded from two lanes to a four-lane connection between Interstate 16 and I-75, passing through a known habitat area for the central Georgia black bear population, which is the smallest in the state. Between 2003 and 2009, 10 of the 20 confirmed black bears killed by collisions with vehicles were along this stretch of road.
Black Bear killed by auto collision
Widening state Route 96 will increase how much paved surface bears must cross. Because of this, the Georgia DOT included seven underpasses in the design with the hopes of providing bears with safer crossings. The UGA researchers will monitor the movements of a sample of collared bears to determine if the culverts are keeping the Bears safe.
No comments:
Post a Comment