Species Code: PLVA
Metadata (Data about data or how the map was made)
Distribution and Habitat Requirements
Van Dyke's salamanders are fund primarily in regions of high rainfall, usually in association with rock, sometimes woody debris. Preferred habitats include the splash zones of rocky streams, talus, fractured rock, near waterfalls, or under woody debris near water (Leonard et al, 1993).
This species is a small stream associate. This species survived in Bean Creek in the Mt. St. Helens blast zone, so there may be other populations in streams in the blast zone. It seems to be associated with very wet areas where quantities of cool water percolates through the soil each winter.
The Outer and Inner Olympic Peninsula, Puget Trough and Southwest Cascades ecoregions were selected. All west-side forest zones in its range, up to and including the Silver Fir zone were core. The Mountain Hemlock zone was marginal. Conifer-lined riparian areas were good habitats. All open and closed-canopy, mid- to late-seral conifer forests were considered suitable if appropriate microhabitats were available.
The area above the Quinault River and parts of the Olympic National Park have not been well survey, but it is probable that the species occurs there wherever there is appropriate habitat (Al Wilson, pers. comm.).
Translated from the Washington Gap Analysis Amphibians and Reptiles Volume by Karen Dvornich
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