Long Island serves as primary refuge for northern long-eared bats in New York

Long Island holds the highest remaining density of northern long-eared bats in New York, according to state biologists.

Casey Pendergast, a bat biologist with the New York State Department of Environmental Conservation, conducts research in Nassau and Suffolk Counties. She identified the northern long-eared bat as the species of greatest concern due to white-nose syndrome. Pendergast explained that the fungus originated in Europe and grows on the wings and muzzles of bats during hibernation. This growth suppresses the animals' immune response, leading to very high mortality rates.

The region provides a distinct advantage for bat survival compared to other parts of New York. Pendergast noted that Long Island experiences a smaller temperature range, with summers that are not excessively hot and winters that are not excessively cold. The island also supports a long season of insect activity. This ensures a consistent food supply for bats throughout the winter months.

New York is home to nine bat species, six of which reside on Long Island. These mammals constitute the second-largest group of mammals globally, with over 1,400 species worldwide. Ashley Meyer, another DEC bat biologist, stated that the public often misperceives bats as vermin or disease carriers. She aims to educate residents on the ecological role these flying mammals play.

Beyond white-nose syndrome, bats face threats from habitat loss and wind energy development. Meyer reported that researchers frequently find carcasses below active wind turbines. The mortality appears to impact hibernating bats, a trend the department is actively monitoring.

The New York State Department of Environmental Conservation advises homeowners to contact a wildlife professional if they discover a bat inside their residence. Officials recommend against handling the animal directly because bats can carry rabies.