A cooperative habitat restoration program that restores wetlands on marginally and non-productive croplands recently helped produce five black bear cub litters in Louisiana.
One den was located on a recently planted tract in Bayou Cocodrie National Wildlife Refuge (NWR). The remaining four dens were located on privately owned properties enrolled in the Wetland Reserve Program. This valuable program added 10 black bear cubs to the threatened population of Louisiana black bears.
The Wetland Reserve Program is a voluntary easement program and since its creation in the 1990 Farm Bill, over 200,000 acres have been restored to wetlands in Louisiana. These properties now contribute to improved flood protection, carbon banking, and water quality, as well as wildlife habitat for hundreds of species.
The U.S. Fish and Wildlife Service (USFWS) listed the Louisiana black bear as a threatened subspecies under the Endangered Species Act in 1992. As with most rare species, habitat loss and fragmentation was the primary cause for the bears decline.
The USFWS Recovery Plan for the Louisiana black bear requires protected forest corridors between bear populations and protection of existing habitats. Since 90 percent of lands in the historic range of the Louisiana black bear are privately owned, creating these corridors presented several challenges for bear recovery efforts. Prior to the creation of the Wetland Reserve Program in the 1990 Farm Bill, there was no large-scale mechanism in place to create the forest corridor necessary for delisting.
To directly address the recovery criteria, the Black Bear Conservation Committee, Louisiana Department of Wildlife and Fisheries, U.S.D.A. Natural Resources Conservation Service, and the USFWS launched a landscape-scale approach to forest restoration in order to create the corridors necessary for bears. Large forest blocks, previously identified as high priority bird conservation areas, were linked by corridors to encourage bear movement between tracts.
This effort evolved the 3.5 million-acre Louisiana Black Bear Habitat Restoration and Planning Maps (HRPM). The HRPM, reaching from the Arkansas/Louisiana border to the Gulf of Mexico, established three levels of conservation based on where bear populations are currently located and how bears move through the landscape. Priority zones and a system for awarding additional points to properties competing for the Wetland Reserve Program and other conservation programs were established by the HRPM.
"The corridor was created with the expectation bears would use it as a travel route from one large forest tract to another," said Maria Davidson, LDWF large carnivore program manager. "It was unexpected that bears would den and successfully produce cubs in these young forests. These litters represent the success of this cooperative habitat restoration plan."
The first bear litter documented in Wetland Reserve Program lands was found in 2004 adjacent to Tensas River NWR in northeast Louisiana. Two additional litters were discovered in 2006, and two more in 2007. All dens were located within the high priority areas identified in the HRPM.
Historically, bear densities in the region were highest in bottomland hardwood forests of the Lower Mississippi Alluvial Valley (LMAV). Because of land drainage and clearing of bottomland hardwoods for agriculture in the LMAV, the original 24 million acres of these forests was reduced to less than 5 million acres by 1980. Unfortunately, many of these tracts are too wet for agriculture and considered marginal or totally non-productive as cropland.
Although the amount of bottomland hardwood loss has stabilized since the early 1990s, restoration of this habitat is still crucial for bear recovery due to the highly fragmented nature of the remaining forests. Presently, 500700 bears can be found in several relatively isolated breeding populations in the Tensas and Atchafalaya River Basins in Louisiana.
For more information, contact Maria Davidson at 225-765-2385 or email@example.com.