Amphibians
Western Red-Backed Salamander
Plethodon vehiculum · also called western red-backed salamanders
Flip over almost any well-decayed log in a Pacific Northwest forest and there is a fair chance a western red-backed salamander is sheltering beneath it, one of the most commonly encountered salamanders in a region full of them.
Overview
The western red-backed salamander, Plethodon vehiculum, is a lungless amphibian native to forest habitat across a range spanning coastal Washington, Oregon, and adjacent parts of British Columbia. Its complete independence from standing water for breeding, striking reddish back stripe, and status as one of the most commonly found salamanders in its range make it a familiar and ecologically significant presence within Pacific Northwest forest ecosystems.
A salamander that never needs a pond
By laying eggs directly on land that hatch straight into miniature adults, the western red-backed salamander has cut water almost entirely out of its life cycle, letting it thrive in forest far from any pond or stream.
Status
Least Concern — widespread and abundant across suitable forest habitat throughout the Pacific Northwest.
Western Red-Backed Salamander: common questions
Why doesn't the western red-backed salamander need to enter water to breed?
This species lays eggs directly on land that hatch into miniature terrestrial adults rather than free-living aquatic larvae, a form of direct development shared across its genus that removes the need to return to water for breeding, unlike many other amphibians whose life cycle depends on a pond, stream, or wetland.
How common is the western red-backed salamander?
This species is one of the most frequently encountered salamanders within its Pacific Northwest range, regularly found beneath logs, bark, and other surface cover in suitable forest habitat, making it one of the salamanders people in the region are most likely to actually come across.
What happens if a predator grabs a western red-backed salamander by the tail?
Like several other lungless salamanders, this species can detach its tail if seized, leaving the still-wriggling tail behind as a distraction while the salamander itself escapes, a defensive strategy that comes at the cost of the tail, which can regenerate over time.
Where does the western red-backed salamander live?
This species is native to forest habitat across a range spanning coastal Washington, Oregon, and adjacent parts of British Columbia, depending closely on the consistent moisture and surface cover, such as decaying logs, that healthy forest floor conditions provide.