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 HSU Herpetology Group

Jason Lowe, MA Candidate, Department of Biological Sciences; BS Biology (Humboldt State University)

Research Topic: Effects of a prescribed fire on two terrestrial salamanders:  Del Norte salamander (Plethodon elongatus) and Oregon Ensatina (Ensatina eschscholtzii oregonensis).

Research Interests:  Applied ecology and conservation biology of amphibians and other animals in forested habitats.

Advisory Committee: John O. Reiss (Chair), Sharyn Marks, John Sawyer, Howard Stauffer

Picture of student


Picture of student

Nancy E. Karraker, MSc Candidate, Department of Wildlife Management; MA Candidate, English Department; BS Wildlife Management (Humboldt State University)

Research Topic: Effects of silvicultural edges on terrestrial amphibian abundance and microclimate in northwestern California.

Research Interests: Effects of land management practices and non-native species on amphibians, amphibians in subterranean habitats, toads.

Advisory Committee: Hartwell Welsh (Chair), Sharyn Marks, Rick Botzler, Rick Golightly   



Picture of student Don Ashton, MA Biology (2001); B.S. Zoology and Biology (1995).

Current Position: Ecologist, USDA-FS Redwood Sciences Laboratory.

Research Topic: Lasting effects of timber harvest on amphibian
Communities of redwood forest streams in Humboldt County, California.

Research Interests: General interests-- Herpetology, Ecology, Conservation
Biology, Habitat restoration, Invasive Species; Specific interests -- Western pond turtles, Pacific Northwest amphibians of redwood forests, high mountain lakes, and river systems.

Major Professor: Sharyn Marks
Email: dashton@fs.fed.us


Andrea Herman, MA Candidate, Department of Biological Sciences; BS Zoology (Humboldt State University)

Research Topic: Movement patterns and ecology of the Shasta salamander (Hydromantes shastae).

Research Interests: Conservation biology of amphibians, vertebrate evolution, paleontology.

Advisory Committee: Sharyn Marks (Chair), Hartwell Welsh, John Reiss, William Bigg

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Picture of student

Stein E. Coriell, MA Student, Department of Biology; BA Biology, BA Environmental Studies (UC Santa Cruz)

Research Topic: Paedomorphosis in Dicamptodon tenebrosus.

Research Interests: Environmental factors affecting metamorphosis.

Advisory Committee: John Reiss (Chair)