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MOUNT RAINIER NATURE NOTES
Vol. III June-October 1989 No. 2

MOUNT RAINIER'S CASE OF HERPES!

In the past few years, Mount Rainier National Park has been infested with a severe case of Herpes. Herpes (pronounced herps) is short for Herpetology which is the study of reptiles and amphibians. As part of the parkwide Old-Growth Study, Herpetologists were collecting amphibians from selected study sites to find out if any species were dependent on Old-Growth habitat.

Three different methods of collection were used in the study: aquatic surveys, time-constrained searches and pitfall trapping. The study plots were spread over old-growth, mature and young forest type stands. The species collected inside Mount Rainier National Park were:

Ambystoma gracileNorthwestern Salamander
Ambystoma macrodactylumLong-toed Salamander
Dicampton ensatusPacific Giant Salamander
Ensatina eschscholtziOregon or Red Salamander
Plethodon vehiculumWestern Red-backed Salamander
Bufo boreasBoreal Toad
Ascaphus trueiTailed Frog
Rana auroraNorthern Red-legged Frog
Rana cascadaeCascade Frog
Taricha granulosaOregon Newt

Although no definite conclusions can be drawn from the small samples collected, there were certain patterns evident that show potential correlations.

  1. Adult Tailed Frogs favored old-growth and mature forests.

  2. Northwestern Salamander was found to occur almost exclusively in old-growth stands.

  3. Western Red-backed Salamander favored young stands.

  4. Oregon Newt was found with high frequency only in dry old growth stands.

  5. Northern Red-legged frog favored old-growth and mature stands.

  6. Long-toed Salamander, Pacific Giant Salamander and Boreal Toad were found only sporadically, but always in old-growth stands.

As the Old-Growth Studies continue, perhaps we will learn of other species besides the Northern Spotted Owl that are dependent on this diminishing habitat.

By Lynn Arthur

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http://www.nps.gov/mora/notes/vol3a-2c.htm
27-Dec-2004