Oviposition in the Olympic Torrent Salamander is similar to that observed for other species of torrent salamander in that the eggs are neither attached to a substrate nor one another [MacCracken (2004) for the Cascade Torrent Salamander; Nussbaum (1969), Russell and others (2002), and Thompson and others (2011) for the Columbia Torrent Salamander; and Karraker and others (2005; Nancy Karraker, University of Rhode Island, Kingston, RI, pers.
The individual deposition of torrent salamander eggs creates ambiguity in determination of clutch size in the field.
For example, consider the southern torrent salamander. Reddishbrown with yellow bellies and about 4 inches long when full-grown, it dries out rapidly, even for a salamander.
Wagner found genetic markers that delimit a southern torrent salamander ESU in California, an area of conservation concern.
And logging without adequate streamside protection has had an effect on many populations of the tailed frog and torrent salamander
throughout the Pacific Northwest.
The Coastal giant salamander, Dicamptodon tenebrosus, and the Cascade torrent salamander, Rhyacotriton cascadae, often occur together in Oregon Cascades streams (Nussbaum, 1976; Hayes, 2005; Jones and Welsh, 2005).
Rhyacotriton cascades Good and Wake, 1992: cascade torrent salamander, p.
Key words: amphibians, Columbia Torrent Salamander
, ecology, food, life history, prey, Rhyacotriton kezeri, trophic interactions, Washington, Willapa Hills
The Yaquina and Smith Rivers of the central Oregon and northern California coasts, respectively, seem to act as barriers to dispersal in Rhyacotriton variegatus (Southern Torrent Salamander
; Miller and others 2006), while the Willamette River of Oregon defines the species boundaries between R.
Evaluating biotic and abiotic influences on torrent salamanders
in managed forests of western Oregon.
; Rhyacotritonidae), and its neural arch is markedly flattened, completely unlike that area on SEKI-20165.
Geographic variation and speciation of the torrent salamanders
of the genus Rhyacotriton (Caudata: Ryacotritonidae).