Richard Yahner Ph.D.
- B.S., The Pennsylvania State University (1971)
- M.S., University of Tennessee (1973)
- Ph.D., Ohio University (1977)
Academic Interests:Wildlife ecology and conservation biology in forested and human-induced landscapes and ecosystems.
Terrestrial Vertebrate Lab
Professionalism in Natural Resources
The Wildlife Society
Society for Conservation Biologists
Wilson Ornithological Society
Recent Research/Educational Projects:
Wildlife Response to Managed Forest Stands in Pennsylvania The effects of silvicultural practices, such as even-aged management, on nongame wildlife are poorly known. Further, there is increasing concern that forest fragmentation is a major factor causing declines in some species of forest songbirds. This study is designed to determine the effects of forest management on population abundance and distribution, biodiversity, behavior, and habitat use by various vertebrate taxa, including birds, small mammals, reptiles, and amphibians. Results obtained from this study will provide important information on the impact of forested landscapes on wildlife in Pennsylvania.
Vertebrate Inventory of Four Pennsylvania National Parks As part of a long-term study dealing with the vertebrate biodiversity in select national park areas in the eastern United States, we are conducting a study of bird and mammal populations in four Pennsylvania national parks. The National Park Service is mandated to manage native flora and fauna. By using standardized protocols for inventorying vertebrates, we are providing natural resource specialists at individual parks information on vertebrate presence/absence, relative abundance, and distribution As large tracts of public lands, such as national park areas, become more insular with increased fragmentation due to agriculture, urbanization, or other land uses, these public lands will be increasingly important for the long-term maintenance of faunal diversity and ensuring the functional integrity of landscapes and ecosystems in the eastern United States.
Raccoon Rabies A study has been initiated on the movements of common raccoons in western Pennsylvania in relation to an oral-vaccination rabies program.
West Nile Virus A study has been completed on the interrelationships between bird populations, mosquito populations, and the incidence of the West Nile virus in Pennsylvania.
Selected Publications:Daily Collegian. Bimonthly wildlife articles written for Penn State newspaper in Science and Health Section (http://www.collegian.psu.edu/archive/news_specials/scitech/scitech.asp)
Yahner, R. H. 2000. Eastern deciduous forest: ecology and wildlife conservation. Second edition. University Minnesota Press, Minneapolis. 295 pp. (first edition was the recipient of the 1997 Conservation Education Award by The Wildlife Society).
Rodewald, A. D. and R. H. Yahner. 2001. Influence of landscape composition on avian community structure and associated mechanisms. Ecology 82:3493-3504.
Yahner, R. H. 2001. Fascinating mammals: conservation and ecology in the mid-eastern states. University Pittsburgh Press, Pittsburgh. 333 pp.
Yahner, R. H. and C. G. Mahan. 2002. Animal behavior in fragmented landscapes. Pages 266-285 In K. Gutzwiller, ed. Concepts and applications of landscape ecology in biological conservation. Springer-Verlag, New York.Talbott, S. C. and R. H. Yahner. 2003. Temporal and spatial use of even-aged reproduction stands by bird communities in central Pennsylvania. Northern Journal of Applied Forestry 20:117-123.
Yahner, R. H. 2003. Responses of bird communities to early successional habitat in a managed landscape. Wilson Bulletin 115:293-299.
Yahner, R. H., R. J. Hutnik, and S. A. Liscinsky. 2003. Long-term trends in bird populations on an electric transmission right-of-way. Journal of Arboriculture 29:156-163.
Yahner, R. H. 2003. Pine squirrels. Pages 268-275 in Wild mammals of North America. Second edition. G. Feldhammer, B. Thompson, and J. Chapman, editors. Johns Hopkins Univ. Press, Baltimore, Maryland.
Yahner, R. H. 2005. Lyme disease and hantavirus in wildlife. Pages 205-214 in Wildlife diseases: Landscape epidemiology, spatial distribution and utilization of remote sensing technology. Majumdar, S. K., J. E. Huffman, F. J. Brenner, and A. J. Panah. The Pennsylvania Academy of Science, Easton, PA.Yahner, R. H., C. G. Mahan, and A. D. Rodewald. 2005. Managing forestlands for wildlife. Braun, C., editor. Pages 898-919 in Techniques for wildlife investigations and management. Sixth Edition. The Wildlife Society, Bethesda, MD.