Cooperative Fish and Wildlife Research Units Program:
Education, Research and Technical Assistance for Managing Our Natural Resources

Staff Member

Dr. Jason M. Hill

Jason M. Hill

Post Doc
Phone: (814) 865 - 9219


  • Ph D The Pennsylvania State University 2012
  • MS University of Connecticut 2008
  • BS University of Montana 2001


Originally from Marshalltown, Iowa Jason earned his B.S. in Wildlife Biology from the University of Montana in 2001. After a yearlong stint working with sea otters for the USGS in Central California, Jason returned to ornithological field research. He participated in research studies in Costa Rica (house wrens), New York (barn swallows), Florida (red-cockaded woodpeckers), Minnesota (American woodcock), California (cavity-nesting birds), and Maui (po'ouli capture team). He completed his M.S. in Ecology at University of Connecticut under Chris Elphick studying post-fledging ecology of saltmarsh sparrows. He completed his Ph.D. at Penn State in Ecology under Duane Diefenbach studying the population dynamics of grassland sparrows on reclaimed surface mines. . Using North American Breeding Bird Survey data to evaluate potential consequences of energy development and other land use changes on bird populations in the northeast Appalachian region Organisms are affected by processes at multiple scales—spatially and temporally. Quantifying the separate effects of those processes (e.g., fragmentation, succession, and habitat degradation) can be tremendously challenging as they tend to overlap in time and space. The North American Breeding Bird Survey (BBS) is often the only source of population status information for model development, and the continuing nature of the BBS makes it a potential data source for testing model predictions and assessing consequences of environmental chan...

Research Publications Publication Date
McClintock, B. T., J. M. Hill, L. Fritz, K. Chumbley, K. Luxa, and D. R. Diefenbach. 2013, Mark-resight abundance estimation under incomplete identification ofmarked individuals. Methods in Ecology and Evolutio. doi: 10.1111/2041-210X.12140. October 2013
Hill, J.M., and C.S. Elphick. 2012. Are grassland passerines especially susceptible to negative transmitter impacts? Wildlife Society Bulletin 35: 362-367. | Abstract | Publisher Website January 2012
Hill, J. M., and D. R. Diefenbach. 2013. Occupancy patterns of declining grassland sparrow populations in a fragmented and forested landscape. Conservation Biology 28:735-744. | Abstract | Download | Publisher Website January 2014
Hill, J. M., and D. R. Diefenbach. 2013. Experimental removal of woody vegetation does not increase nesting success or fledgling production in two grassland sparrows (Ammodramus) in Pennsylvania. Auk 130:764-773. | Download October 2013
Hill, J. M., J. Walsh, A. I. Kovach, and C. S. Elphick. 2013. Male-skewed sex ratio in in Saltmarsh Sparrow nestlings. The Condor 115(2): 411-420. | Abstract May 2013
Hill, J. M., J. F. Egan, G. E. Stauffer, and D. R. Diefenbach. 2014. Habitat availability is a more plausible explanation than insecticide acute toxicity for U.S. grassland bird species declines. PLoS ONE 9(5): e98064. doi:10.1371/journal.pone.0098064 | Download May 2014
Fernandez, C.W., M.L. McCormack, J.M. Hill, S.G. Pritchard, and R.T. Koide. 2013. On the persistence of Cenococcum geophilum ectomycorrhizas and its implications for forest carbon and nutrient cycles. Soil Biology and Biochemistry 65:141-143. | Abstract | Publisher Website October 2013
Presentations Presentation Date
Hill, J. M., and D. R. Diefenbach. 2014. Occupancy Patterns of Regionally Declining Grassland Sparrow Populations in a Forested Pennsylvania Landscape. Northeast Association of Fish and Wildlife Agencies Annual Conference April 2014
Hill, J. M., and D. R. Diefenbach. 2012. Enhancing grassland sparrow populations on reclaimed mine grasslands: A large-scale experiment of woody vegetation removal. The Wildlife Society Annual Conference, 15 October 2012, Portland, Oregon, USA. October 2012
Hill, J. M., J. F. Egan, G. E. Stauffer, and D. R. Diefenbach. Habitat availability is a more plausible explanation than insecticide acute toxicity for U.S. grassland bird species declines. Annual Conference of The Wildlife Society, 23 October 2014, Pittsburgh, Pennsylvania. October 2014