Greg Shriver


  • Ph.D. Environmental Forest Biology, State University of New York, 2002
  • M.S. Wildlife Conservation, University of Massachusetts, 1996
  • B.S. Wildlife Management, University of Maine, 1991

Regular Courses Taught

  • ENWC 418/618 Ornithology, Spring
  • ENWC 456/656 Conservation Biology, Fall
  • Study Abroad to Costa Rica (ENWC 444 Conservation of Tropical Biodiversity, ENWC450 Debates in Conservation Biology), Fall 2014, 2016, 2018


  • Avian ecology and conservation
  • Ecological monitoring
  • Restoration ecology
  • Effects of sea-level rise on salt marsh birds

Professional Affiliations

  • Elected member, American Ornithologists Union, 2010.
  • Council member, Association of Field Ornithologists, 2008-2010.
  • Treasurer, Association of Field Ornithologists, 2008-present.

Graduate Students

  • Solny Adalsteinsson. The influence of urban forest characteristics on tick-borne disease dynamics. Ph.D. in Wildlife Ecology (Co-advised Buler and Shriver).
  • Whitney A. Wiest. The future of tidal marsh birds in the northeast: Conservation planning in response to predicted sea level rise. Ph.D. in Wildlife Ecology.
  • Zach Ladin. Impacts of urbanization and forest fragmentation on a breeding population of wood thrush in Newark, DE. Ph.D. in Wildlife Ecology.
  • Rebecca A. Kern. Population regulation of sympatirc tidal marsh sparrows with divergent life histories. Ph.D. in Wildlife Ecology.
  • Christine Rega. 2012. Multi-trophic effects of soil calcium availability in urban forest fragments. M.S. in Wildlife Ecology.
  • Judith I. Keller. 2012. Prevalence of Campylobacter in Wild Birds of Delmarva. M.S. in Wildlife Ecology.
  • Rebecca A. Kern. 2010. Secretive marsh bird response to prescribed fire frequencies in Mid-Atlantic tidal marshes. M.S. in Wildlife Ecology.
  • Whitney A. Wiest. 2010. Development of avian rapid assessment metrics to monitor salt marsh integrity. M.S. in Wildlife Ecology.
  • Sarah E. Goodwin. 2009. Patch, landscape, and soundscape effects on the forest bird community in the National Parks of the National Capital Region. M.S. in Wildlife Ecology.
  • Sarah E. Warner. 2009. Effects of direct and indirect habitat alterations on tidal marsh sparrows in Delaware Bay. M.S. in Wildlife Ecology.
  • Pepper, Margaret A. 2008. Salt marsh bird community responses to open marsh water management. M.S. in Wildlife Ecology. Currently employed as a biologist with USDA-APHIS.


Generally, WGS appears second if publication is a mentored student project

2013 42. Tymkiw, L., J. L. Bowman, and W. G. Shriver. 2013. The effect of white-tailed deer density of breeding songbirds in Delaware. Wildlife Society Bulletin 37:714–724.
2012 41. Ryder, T. B., R. C. Fleischer, W. G. Shriver, and P. P. Marra. 2012. The ecological-evolutionary interplay: density-dependent sexual selection in a migratory songbird. Ecology and Evolution 2:976–987.

40. Shriver, W. G., and R. Greenberg. 2012. Avian community responses to tidal restoration along the North Atlantic coast of North America. Pages 119-125 in Roman, C. T., and D. M. Burdick, editors. Tidal Marsh Restoration: A synthesis of science and management. Island Press, Washington D. C.

39. Warner, S. E., W. G. Shriver, B. J. Olson, R. G. Greenberg, R. J. Taylor. 2012. Mercury in wing and tail feathers of hatch-year and adult tidal marsh sparrows. Archives of Environmental Contamination and Toxicology 63:586–593.

38. Kern, R. A., W. G. Shriver, J. L. Bowman, L. R. Mitchell, and D. L. Bounds. 2012. Seaside sparrow success in relation to prescribed fire. Journal of Wildlife Management.

2011 37. Keller, J. I., W. G. Shriver, and J. Waldenstrom, P. Griekspoor, and B. Olson. 2011. Prevalence of Campylobacter in wild birds of the Mid-Atlantic Region, USA. Journal of Wildlife Diseases 47:750–754.

36. Etterson, M. A. B. J. Olsen, R. Greenberg, and W. G. Shriver. 2011. Source, sinks, and model accuracy. In Sources, Sinks, and Sustainability Across Landscapes. Cambridge University Press.

35. Shriver, W. G., T. P. Hodgman, and A. Hansen. 2011. Nelson’s Sharp-tailed Sparrow (Ammodramus nelsoni), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology.

34. Shriver, W. G., J. P. Gibbs, H. W. Woltz, N. P. Schwarz, and M. A. Pepper. 2011. Galapagos rail (Lateralis spilonotus) population change associated with habitat invasion by the red-barked quinine tree (Cinchona pubescens). Bird Conservation International 21:221–227.

33.Goodwin, S. E. and W. G. Shriver. 2010. Traffic noise and occupancy patterns of forest birds. Conservation Biology 25:406–411.

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Contact Information
Greg Shriver
Associate Professor, Wildlife Ecology

Entomology and Wildlife Ecology
257 Townsend Hall

Newark, DE 19716
Phone: (302) 831-1300
Fax number: (302) 831-8889