Northern Dusky Salamander
Desmognathus fuscus
Conservation Status
Least ConcernAmphibia · Caudata · Plethodontidae
About
Desmognathus fuscus is a species of amphibian in the family Plethodontidae. The species is commonly called the dusky salamander or northern dusky salamander to distinguish it from populations in the southern United States which form several distinct species, the southern dusky salamanders. The northern dusky salamander is the most widespread representative of its genus in Canada. It can be found in eastern North America from extreme eastern Canada in New Brunswick south to South Carolina. The size of the species' total population is unknown, but is assumed to easily exceed 100,000. The species' habitat differs somewhat geographically; dusky salamanders in the northern part of the range prefer rocky woodland streams, seepages, and springs, while those in the south favor floodplains, sloughs, and muddy places along upland streams. They are most common where water is running or trickling. They hide under various objects, such as leaves or rocks, either in or near water. Alternatively, they may enter burrows for protection. The dusky salamander lays its eggs close to water under moss or rocks, in logs, or in stream-bank cavities. The larval stage which follows is normally aquatic.
Fun Fact
Northern dusky salamanders are lungless, breathing entirely through their moist skin and mouth lining — a feature they share with over 400 species in family Plethodontidae.
Quick Facts
Habitat
Inhabits saturated soil near springs, seepages, and small tributaries of small headwater streams otherwise known as the riparian zone.
Diet
Consumes a variety of aquatic and terrestrial invertebrates.
Lifespan
15 years
Threats
- Habitat Change
- Human Disturbance