By Blake Jackson
A recent study suggesting a rise in wild pigs, also known as feral swine, in Pennsylvania has been disputed by the United States Department of Agriculture (USDA). While the research claimed a 20% increase in affected counties, the USDA clarified that the data was misinterpreted.
The Pennsylvania Game Commission previously reported damage from feral swine in the southwest, south-central, and northeast regions of the state. These animals are typically descended from escaped or released domestic pigs and can cause problems for natural habitats, wildlife, and farmland.
However, USDA Wildlife Disease Biologist Kyle Van Why explained that Pennsylvania has seen a significant decrease in feral swine populations, not an increase. He clarified that the data used in the study, collected in 2016, categorized any free-roaming pig outside a fence as "feral swine." This broad definition included breeding populations, escaped farm pigs, and even pet pot-bellied pigs, not just established, expanding populations.
Van Why emphasized that 15-20 years ago, Pennsylvania had breeding populations in several counties, primarily in Bedford and Fulton. Back then, feral swine were studied nationally as a wildlife species, not an invasive threat. Their classification as "wildlife," "agriculture," or simply "nuisance" varied by state, leading to inconsistent management efforts.
While feral swine ranges have undoubtedly grown in many states, the USDA is now actively documenting and managing these populations. As a result, their updated map, released in December 2022, shows wild pigs present in only three Pennsylvania counties, highlighting the progress made in controlling their spread.
This situation underscores the importance of accurate data interpretation and collaboration between research institutions and government agencies to ensure effective management of wildlife populations and address potential environmental concerns.
Photo Credit: istock-srdjan-stepic
Categories: Pennsylvania, Livestock, Hogs