Managing the Declining Population of Northern long-eared bats in New York State
Thu, 05/03/2018 - 08:02
Abstract: White-nose syndrome (Geomyces destructans) is a fungal disease that has caused over 5.5 million bat deaths in eastern North America. The fungus affects any open skin including the bat’s patagium and causes lesions. The fungus consists of microscopic spores which can attach to anything it comes into contact with to spread the disease. The fungus is spread from bat to bat and cave systems as well as facilitated by human tourism. Northern long-eared bats (Myotis septentrionalis) are currently threatened in New York State. The northern long-eared bat is an insectivore and must hibernate when its food source is unavailable. During hibernation the bat’s immune system is suppressed, making it more vulnerable to the effects of white-nose syndrome. The bat will deplete its fat reserve to fight off the disease, which will lead to death if the bat cannot find a food source. White-nose syndrome has decreased the northern long-eared bat population by 90% in New York State. There is no cure for white-nose syndrome, and the northern long-eared bat population continues to decrease in New York State. The northern long-eared bat population is relatively unknown, but estimated to be 20,000 individuals in New York State. Population projections predict that the bat may become extirpated from New York State in the next 5 years. Increasing the survivability of the juvenile bat population to 70% and the adult bat population to 80% would prevent the extirpation of the species. The goal of this management plan is to increase the population of northern long-eared bats in New York to prevent the extirpation of the species from the state and create a sustainable population. This should be done by preventing further human facilitation of the disease, increasing educational resources for the public and gathering more information about the fungus and the northern long-eared bat population in New York.
Literary Rights: On
Major: Fisheries and Wildlife Science
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