USDA Forest Service
 

Pacific Southwest Research Station

 

Pacific Southwest Research Station
800 Buchanan Street
West Annex Building
Albany, CA 94710-0011

(510) 559-6300

United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.

Programs and Projects

(RWU-4251)

Timber Management/Wildlife Habitat Interactions

Photo of Hartwell Welsh

Hartwell Welsh
Research Wildlife Biologist
Employee E-mail Address Image
Phone: (707) 825-2956

Pacific Southwest Research Station
Redwood Sciences Laboratory
1700 Bayview Drive
Arcata, CA 95521-6013

Ph: (707) 825-2900
Fx: (707) 825-2901


Selected Publications

Pope, K.L., J.M. Garwood, H.H. Welsh and S.P. Lawler. In press. (2008). Evidence of indirect impacts of introduced trout on native amphibians via facilitation of a shared predator. Biological Conservation.

Welsh, H.H., Jr., K.L. Pope and C.A. Wheeler. In Press. (2008). Using multiple metrics to assess the effects of forest succession on population status: A comparative study of two terrestrial salamanders in the US Pacific Northwest. Biological Conservation.

Welsh, H. H., and G. R. Hodgson. In press. (2008). Amphibians as metrics of critical biological thresholds in forested headwater streams of the Pacific Northwest, USA. Journal of Freshwater Biology.

Fellers, G.M., K.L. Pope , J.E. Stead, M.S. Koo, and H.H. Welsh, Jr. 2008. Turning population trend monitoring into active conservation: Can we save the Cascades frog in the Lassen region of California. Herpetological Conservation and Biology 3:28-39.

Ashton, D. T., S. B. Marks, and H. H. Welsh, Jr. 2006. Evidence of continued effects from timber harvesting on lotic amphibians in redwood forests of northwestern California. Forest Ecology and Management 221: 183-193.

Welsh, H. H., Jr., J. R. Dunk, W. J. Zielinski. 2006. Developing and applying habitat models using forest inventory data: an example using a terrestrial salamander. Journal of Wildlife Management 70: 671-681.

Welsh, H. H., Jr., K. L. Pope, and D. Boiano. 2006. Sub-alpine amphibian distributions related to species palatability to non-native salmonids in the Klamath mountains of northern California. Diversity and Distributions 12: 298-309.

Karraker, N. E. and H. H. Welsh, Jr. 2006. Long-term impacts of even-aged timber management on abundance and body condition of terrestrial amphibians in Northwestern California. Biological Conservation 131: 132-140.

Spickler, J. C., S. C. Sillett, S. B. Marks and H. H. Welsh, Jr. 2006. Evidence of a new niche for a North American salamander: Aneides vagrans residing in the canopy of old-growth redwood forest. Herpetological Conservation and Biology 1: 16-27.

Welsh, H. H., G. R. Hodgson, and N. E. Karraker. 2005b. Influences of the vegetation mosaic on riparian and stream microclimates in a mixed forest-grassland landscape in "Mediterranean" northwestern California. Ecography 28: 537-551.

Welsh, H. H., G. R. Hodgson, and A. J. Lind. 2005a. Ecogeography of the herpetofauna of a northern California watershed: linking species patterns to landscape processes. Ecography 28: 521-536.

Bury, R. B., and H. H. Welsh, Jr. 2005. Siskiyou mountains salamander, Plethodon stormi. in M. Lanno, editor. Status and Conservation of U. S. Amphibians. U. C. Press, Berkeley, CA.

Feral, D., M. A. Camann, and H. H. Welsh, Jr. 2005. Dicamptodon tenebrosus larvae within hyporheic zones of intermittent streams in California. Herpetological Review 36:26-27.

Garwood, J. M., and H. H. Welsh, Jr. 2005. Rana cascadae (Cascades frog) predation. Herpetological Review 36:165.

Lind, A. J., H. H. Welsh, Jr., and D. A. Tallmon. 2005. Garter snake population dynamics from a 16-year study: considerations for ecological monitoring. Ecological Applications 15:294-303.

Wheeler, C. A., J. M. Garwood, and H. H. Welsh, Jr. 2005. Rana boylii (foothill yellow-legged frog) physiological skin color transformation. Herpetological Review 36:164-165.

Welsh, H. H., Jr. 2005. Pacific giant salamander, Dicamptodon tenebrosus. in M. Lanno, editor. Status and Conservation of U. S. Amphibians. U. C. Press, Berkeley, CA.

Welsh, H. H., Jr., and R. B. Bury. 2005. Del Norte salamander, Plethodon elongatus. in M. Lanno, editor. Status and Conservation of U. S. Amphibians. U. C. Press, Berkeley, CA.

Welsh, H. H., Jr., and N. E. Karraker. 2005. Southern torrent salamander, Rhyacotriton variegatus. in M. Lanno, editor. Status and Conservation of U. S. Amphibians. U. C. Press, Berkeley, CA.

Davic, R. D., and H. H. Welsh, Jr. 2004. On the ecological roles of salamanders. The Annual Review of Ecology, Evolution, and Systematics 35:405-434.

Welsh, H. H., Jr. 2004. Bookreview: LifePlace: Bioregional Thought and Practice. by Robert L. Thayer, Jr. The Quarterly Review of Biology 79:227-228.

Ollivier, L. M., and H. H. Welsh, Jr. 2003. Determining sex and life stage of Del Norte salamanders from external cues. Northwestern Naturalist 84:129-134.

Wheeler, C. A., H. H. Welsh, Jr., and L. L. Heise. 2003. Rana boylii oviposition Behavior. Herpetological Review 34:234.

Bettaso, J. B., H. H. Welsh, Jr., and B. D. Palmer. 2002. Northern red-legged frogs and endocrine-disrupting compounds (EDC's). FrogLog 52:1-2.

Welsh, H. H., Jr., and A. J. Lind. 2002. Multiscale habitat relationships of stream amphibians in the Klamath-Siskiyou Region of California and Oregon. Journal of Wildlife Management 66:581-602.

Welsh, Hartwell H., Jr.; Droege, Sam. 2001. A case for using plethodontid salamanders for monitoring biodiversity and ecosystem integrity of North American forests. Conservation Biology 15(3):558-569.

Welsh, Hartwell H., Jr.; Hodgson, Garth R.; Harvey, Bret C.; Roche, Maureen F. 2001. Distribution of juvenile coho salmon in relation to water temperatures in tributaries of the Mattole River, California. North American Journal of Fisheries Management 21(3):464-470.

Waters, Jeffrey R.; Zabel, Cynthia J.; McKelvey, Kevin S.; Welsh, Hartwell H., Jr. 2001. Vegetation patterns and abundances of amphibians and small mammals along small streams in a northwestern California watershed. Northwest Science 75(1):37-52.

Welsh, Hartwell H., Jr.; Roelofs, T.D.; Frissell, C.A. 2000. Aquatic ecosystems of the redwood region. Pages 165-199 in R.F. Noss, ed., The Redwood Forest: History, Ecology, and Conservation of the Coast Redwoods. Island Press, Covelo, California.

Welsh, Hartwell H., Jr.; Lind, A.J. 2000. Evidence of lingual-luring by an aquatic snake. Journal of Herpetology 34(1):67-74.

Thornburgh, D.A.; Noss, R.F.; Angelides, D.P.; Olson, C.M.; Euphrat, F.; Welsh, H.H., Jr. 2000. Managing redwoods. Pages 229-261 in R.F. Noss, ed., The Redwood Forest: History, Ecology, and Conservation of the Coast Redwoods. Island Press, Covelo, California.



Last Modified: Mar 28, 2013 02:53:33 PM