Biologists in Georgia are sounding the alarm about the increasing foothold of an invasive and carnivorous species of tree frog, the Cuban treefrog (Osteopilus septentrionalis), within the state. These amphibians are exhibiting breeding behaviors, signaling their adaptation and establishment in Georgia.
Migration and Establishment
Originally from the Caribbean and primarily dwelling in canopies, the exact timeline of their migration across the Straits of Florida remains unclear. They were initially documented in Florida in the mid-1900s and have since spread across the Southeastern United States. Experts suspect their existence in Georgia's southern regions long before their official recognition in 2004.
Threats and Characteristics
Larger than native tree frogs, Cuban treefrogs grow up to five and a half inches, displaying versatility in their diet, preying on insects, lizards, other tree frogs, and small rodents. Recent discoveries of a breeding population along the coastal areas have raised concerns due to increased numbers.
Impact and Concerns
While Georgia's chilly winters limit their spread beyond developed coastal regions, climate change poses a threat by altering their habitat preferences. Their attraction to warm environments, including human-made structures, might inadvertently aid their transportation and expansion.
Mitigation Efforts
Presently, these frogs primarily threaten native amphibian populations in residential areas. While concerning, experts prioritize monitoring and intervention. The Georgia Department of Natural Resources encourages reporting sightings to mitigate their presence within the landscape.