Beckman, Noelle (Washington and Lee University). Mentor: David Marsh (Washington and Lee University). What effect do road-edges have on red-backed salamanders (Plethodon cinereus)?

Abstract: The red-backed salamander (Plethodon cinereus) is considered an indicator species because it is abundant and has permeable skin, which makes it sensitive to changes in the ecosystem. Amphibian surveys suggest that amphibian abundance decreases proportional to the proximity to edges, but this could be due to a change in activity patterns or a declining population closer to edges. I tested whether salamander activity patterns and body condition differed between road edges and forest interiors. I found no significant difference between edges and forest interior in time spent foraging at night, time spent on the surface during the day or in weight change. This suggests that forest roads do not have excessive effects on terrestrial salamanders, though long term studies could clarify these data.