IUCN threat status:

Near Threatened (NT)

Associations

Read full entry

Predation

Common garter snakes (Thamnophis sirtalis) are the largest threats to Plethodon salamanders. The first defense mechanism of Jordan’s salamanders is the bright red cheeks or legs possessed by some individuals. This aposematic coloration is a warning sign to predators. Snake predation upon Plethodon salamanders also elicits other behaviors, including writhing and thrashing movements that coat the predator with slimy secretions, tail autotomy (tail loss), and biting. Bennett and Licht (1974) suggested that the particular antipredator behaviors of amphibian species are correlated with the extent of anaerobiosis during a burst of activity. According to a study by Arnold and Feder (1982), predatory encounters are especially suitable for demonstration of anaerobiosis during spontaneous natural activity, if it does occur. In one trial conducted by Arnold and Feder (1982), a Jordan's salamander escaped the snake by producing thick secretions which actually glued the snake to the substrate (rendering it immobile). Predatory birds are also likely to be important predators of Jordan's salamanders, especially at higher elevations where there are fewer garter snakes.

Known Predators:

Anti-predator Adaptations: aposematic

Trusted

Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© The Regents of the University of Michigan and its licensors

Source: Animal Diversity Web

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!