Genomic Study Highlights Genetic Divide Between North Carolina’s Mountain and Coastal Black Bears

A new genetic analysis of black bears inhabiting North Carolina’s mountains and coastal regions has uncovered marked differences in the health and variability of their DNA, indicating that the coastal population may be more vulnerable to environmental pressures.

The research, conducted by a team of wildlife biologists and geneticists, sampled individuals from both ecosystems and compared markers of genetic diversity. While bears in the Appalachian highlands displayed a robust range of genetic traits, those from the Atlantic seaboard showed signs of reduced variability, a factor often linked to lower adaptive capacity.

Genetic diversity serves as a buffer against disease, habitat change, and other stressors, so the observed fragility among coastal bears could have long‑term implications for their survival. Conservationists note that isolated or small populations frequently suffer from inbreeding, which can diminish reproductive success and increase susceptibility to pathogens.

The findings arrive at a time when North Carolina’s black bear numbers are generally considered stable, yet management agencies have expressed concern over habitat fragmentation caused by development and road networks. By pinpointing genetic weaknesses, the study provides a scientific basis for targeted interventions, such as habitat corridors or managed gene flow, aimed at bolstering the coastal group’s resilience.

Officials from the state wildlife department have indicated that the data will inform future monitoring and recovery plans. As the bears continue to navigate a landscape shaped by human activity, maintaining genetic health will be essential to ensuring that both mountain and coastal populations remain viable for generations to come.