Dr. Chris Williams

Education

  • Ph.D. Wildlife Ecology, Minor Natural Resource Policy, University of Wisconsin, 2001
  • M.S. Wildlife Ecology, University of Wisconsin, 1996
  • B.S. Zoology, Miami University, 1994
  • B.S. Botany, Miami University, 1994

Courses Taught

  • ENWC/BISC 635 – Population Ecology, Spring
  • ENWC 413/613 – Wildlife Policy and Administration, Fall
  • ENWC 201 – Wildlife Conservation and Ecology, Alternate Winters
  • ENWC 815 – Readings in Ecology: Waterfowl Ecology, Fall 2013

Professional Experience

  • Professor, University of Delaware, Department of Entomology and Wildlife Ecology, 2016-present.
  • Faculty Affiliate, Quantitative Biology, Departments of Biological Sciences and Mathematical Sciences, University of Delaware, 2009–present.
  • Faculty Affiliate, Delaware Environmental Institute, University of Delaware, 2008–present.
  • Associate Professor, University of Delaware, Department of Entomology and Wildlife Ecology, 2011–2016.
  • Joint Faculty Appointment, Center for Energy and Environmental Policy, University of Delaware, 2011–2015.
  • Assistant Professor, University of Delaware, Department of Entomology and Wildlife Ecology, 2004–2011.
  • Visiting Instructor, University of Wisconsin – Madison, Department of Wildlife Ecology, Spring 2004.
  • Visiting Instructor, University of Wisconsin – Rock County, Department of Biology, Fall 2003.
  • Post-Doctoral Research Fellow, Department of Zoology, University of Wisconsin, 2001–2004.
  • Visiting Instructor, University of Wisconsin – Stevens Point, Department of Wildlife. 2000.

Research Activities

  • Wildlife Population Ecology
  • Animal Behavior
  • Wildlife Habitat Interaction
  • Waterfowl Ecology: Black Ducks, Atlantic Brant, Canada Geese
  • Upland Gamebird Ecology: Northern Bobwhite
  • Wildlife Policy

Current Professional and Academic Affiliations and Service

Graduate Students and Post-Doctoral Researchers

27. McGrew, Kate. In Progress. Determining the underwater hearing abilities and the efficacy of sensory deterrents on seaducks.

26. Coppola, Phil. In Progress. The summer ecology and success of reintroduced northern bobwhite into the New Jersey Pine Barrens. Ph.D. Wildlife Ecology.

25. Ladin, Zach. In Progress. An analysis of survival and harvest from 25 years of Virginia banded Canada Geese. Post-doctoral Researcher. Linkedin Profile.

24. Stevens, Kaili. In Progress. The winter ecology and success of reintroduced northern bobwhite into the New Jersey Pine Barrens. M.S. Wildlife Ecology. Linkedin Profile.

23.McPherson, Jake. In Progress. Estimating behavioral multipliers to American black duck and lesser scaup resting metabolic rate to better estimate daily energy expenditure and carrying capacity. M.S. Wildlife Ecology.

22. Colmorgen, Chase. In Progress. Building a predictive model of submerged aquatic vegetation along the Atlantic Flyway: implications for Atlantic brant wintering carrying capacity. M.S. Wildlife Ecology.

21. Macaluso, Will. In Progress. Evaluation of the effectiveness of parent-reared vs. Surrogator raised northern bobwhites for reintroduction on Long Island, New York. M.S.  Wildlife Ecology. Linkedin Profile

20. Nissley, Clark. 2016. Assessing the impact of snow geese and cackling geese competition on breeding Atlantic brant on Southampton Island, Canada. M.S. Wildlife Ecology. 2014 Dennis Raveling Scholarship Award Winner. 2014-15 Ankney Scholarship Award Winner.

19. Lewis, Susan. 2015. Tourism and environmental policy in Antarctica: Inadequacies and action. Ph.D. Energy and Environmental Policy.

18. Livolsi, Mark. 2015. Bioenergetics, behavior, and sea level rise: current status and future implications for wintering dabbling ducks in Delaware. M.S. Wildlife Ecology.

17. Caldwell, Jenny. 2015. A policy analysis of hydraulic fracturing in the Marcellus Shale and its impact on wildlife habitat. M.S. Energy and Environmental Policy. Current Employment: Tri-State Bird Rescue and Research. Linkedin Profile.

16. Ringelman, Kevin. 2014. Influence of winter habitat quality on black duck home range and survival. Post-doctoral Researcher. Current employment: Assistant Professor of Wildlife, Louisiana State University, Baton Rouge.

15. Rubino, Elena. 2014. Commercialization of wildlife meat as a conservation tool of overabundant species. M.S. in Energy and Environmental Policy. Current Employment: PhD Student, University of Florida.

14. Beston, Julie. 2014. Building a predictive population model for Atlantic Flyaway resident Canada geese. Post-doctoral Researcher. Current Employment: Assistant Professor, University of Wisconsin-Stout.

13. Bennett, Curtis. 2014. A predictive habitat model for river otters in New Jersey estuarine systems. M.S. in Wildlife Ecology. Expected 2013.Current employment: Conservation Project Manager, National Aquarium, Baltimore, MD. Linkedin Profile

12. Ferris, Gavin. 2013. Nutrient retention and invasive plant permeability in forested riparian corridors. M.S. in Wildlife Ecology. Current Employment: Ecologist, Solitude Lake Management.

11. Ulman, Sadie. 2012. Migratory shorebird and vegetation evaluation of Chickaloon Flats, Kenai National Wildlife Refuge, Alaska. M.S. in Wildlife Ecology. Current employment: Research Coordinator, Alaska SeaLife Center.

10. Jones, Orrin. 2012. Constructing a 24 hour time-energy budget for American black ducks wintering in coastal New Jersey. M.S. in Wildlife Ecology. Current Employment: Waterfowl Research Biologist, Iowa Department of Natural Resources.

9. Heise, Jeremiah. 2012. Incorporating nocturnal activity of wintering Atlantic brant (Branta bernicla hrota) into 24 hour time-activity and daily energy expenditure models. M.S. in Wildlife Ecology. Current employment: Wildlife Biologist at Michigan Department of Natural Resources, Saginaw, Michigan. Linkedin Profile.

8. Guerena, Kate. 2011. Resident Canada geese nesting Ecology in New Jersey. M.S. in Wildlife Ecology. Current employment: Wildlife Biologist, U.S. Fish and Wildlife Service, Florida Keys National Wildlife Refuge Complex, Big Pine Key. Linkedin Profile.

7. Brunette, Cassie. 2011. Commons and commodity paradigms: analysis of the conflicts arising from renewable energy and wildlife policies in the U.S. M.S. in Energy and Environmental Policy. Current Employment: Environmental Defense Fund, San Francisco, CA.

6. (Conover) Duren, Amanda. 2011. The impact of non-native plants on bird communities in suburban forest fragments. M.S. in Wildlife Ecology. Current Employment: Program Coordinator, Ohio Bird Conservation Initiative.

5. Duren, Ken. 2010. A predictive habitat model for northern bobwhite (Colinus virginianus) in Delaware. M.S. Wildlife Ecology. Current employment: Wildlife Biologist at Ohio Division of Wildlife, Delaware, Ohio. Linkedin Profile.

4. Ladin, Zach. 2010. Bioenergetics and food use of wintering and staging Atlantic brant. M.S. in Wildlife Ecology. Current employment: Post-doctoral Researcher, University of Delaware. Linkedin Profile.

3. Cramer, Dane M. 2009. Estimating habitat carrying capacity for American black ducks wintering in southern New Jersey. M.S. in Wildlife Ecology. Current employment: Regional Biologist, Ducks Unlimited, Ann Arbor, Michigan.

2. Lohr, Michael. 2009. Northern bobwhite winter ecology in Southern New Jersey. M.S. in Wildlife Ecology. Current Employment: Ph.D. Student, Edith Cowan University, Austraila.

1. Collins, Bridget M. 2008. Northern bobwhite breeding season ecology in southern New Jersey. M.S. in Applied Ecology. Current employment: Agriculture Policy Coordinator at Association of Fish and Wildlife Agencies, Washington D.C. Linkedin Profile.

Publications

Generally, CKW may appear as either the second or last author if publication is a mentored student project. Google Scholar reported citations: 1098 h-Index = 14, i10-Index = 21, Goggle Scholars Report Page. ResearchGate Score = 27.72, ResearchGate Profile Page.

2016

60. Goldstein, M., C. K. Williams, K. Duren, P. M. Castelli. 2016. Addressing variability in estuarine food density for American black ducks: a comparison of sampling methods. Wildlife Society Bulletin

59. Guerena, K. B., P. M. Castelli, T. C. Nichols, and C. K. Williams. 2016. Factors influencing nest survival in resident Canada geese. Journal of Wildlife Management 80:1022–1030.

58. Nissley, C., C. K. Williams, and K. F. Abraham. 2016. Ross’s goose nesting colony at East Bay, Southampton Island. Canadian Field Naturalist.

57. Beston, J. A., C. K. Williams, T. Nichols, and P. M. Castelli. 2016. A population model for management of Atlantic Flyway resident population Canada geese. The Wildlife Society Bulletin.

2015

56. Livolsi, M. C., K. M. Ringelman, J. M. Coluccy, M. T. DiBona, and C. K. Williams. 2015. Implications of uncertainty in true metabolizable energy estimates for estimating wintering waterfowl carrying capacities. Wildlife Society Bulletin 39:827–833.

55. Livolsi, M. C., C. K. Williams, J. M. Coluccy, and M. T. DiBona. 2015. Morphometris of mid-Atlantic dabbling ducks for use in thermoregulation models. The Condor: Ornithological Applications 117:644-649.

54. Ringelman, K., C. K. Williams, P. Devers, J. Coluccy, P. M. Castelli, K. Anderson, J. L. Bowman, G. Costanzo, D. Cramer, M. T. DiBona, M. Eichholz, M. Huang, B. Lewis, D. Plattner, and T. Yerkes. 2015. A meta-analysis of American black duck habitat use along the Atlantic Coast. Journal of Wildlife Management 79:1298–1307.

53. Beston, J. A., C. K. Williams, T. Nichols, and P. M. Castelli. 2015. Survival and harvest of Atlantic Flyway resident population Canada geese. Wildlife Society Bulletin 39:583–592.

52. Ringelman, K. M., C. K. Williams, and J. M. Coluccy. 2015. Assessing uncertainty in coastal marsh core sampling for waterfowl foods. Journal of Fish and Wildlife Management 6:238–246.

2014

51. Livolsi, M. K. Ringelman, and C. K. Williams. 2014. Subsampling reduces sorting effort for waterfowl foods in salt-marsh core samples. Journal of Fish and Wildlife Management 5:380–386.

50. Williams, C. K., B. Dugger, M. Brasher, J. Coluccy, D. Cramer, J. Eadie, M. Gray, H. Hagy, M. Livolsi, S. McWilliams, M. Petrie, G. Soulliere, J. Tirpak, and L. Webb. 2014. Estimating habitat carrying capacity for wintering waterfowl: considerations, pitfalls, and improvements. Proceedings of the North American Duck Symposium. Wildfowl Special Issue 4:407–435.

49. Jones, O., C. K. Williams, and P. M. Castelli. 2014. A 24-hour time-energy budget for wintering American black ducks (Anas rubripes) and its comparison to allometric estimations. Waterbirds 37:264–273.

48. Ladin, Z. S., C. K. Williams, P. M. Castelli, K. Winiarski, J. Osenkowski, and S. R. McWilliams. 2014. Regional and intraseasonal variation in diet of wintering and staging Atlantic brant. Journal of Wildlife Management 7:1206–1215.

47. Beston, J. A., T. Nichols, P. M. Castelli, and C. K. Williams. 2014. Factors affecting survival of Atlantic Flyway Resident Population Canada geese in New Jersey. Journal of Wildlife Management 78:612–619.

46. Guerena, K. B., P. M. Castelli, T. C. Nichols, and C. K. Williams. 2014. Spatially-explicit land use effects on nesting of Atlantic flyway resident Canada geese in New Jersey. Wildlife Biology 20:115–121

2013

45. Brunette, C., J. Byrne, and C. K. Williams. 2013. Resolving conflicts between renewable energy and wildlife by promoting a paradigm shift from commodity to commons based policy. Journal of International Wildlife and Policy 16:375–397.

44. Irvin, E., K. Duren, J. Buler. W. Jones, A, Gonzon, and C. K. Williams. 2013. A multi-scale occupancy model for the grasshopper sparrow in the Mid-Atlantic. Journal of Wildlife Management 77:1564–1571.

43. Williams, C. K. 2013. Accounting for wildlife life-history strategies when modeling stochastic density dependent populations: A review. Journal of Wildlife Management 77:4–11.

2012

42. Williams, C. K. and R. D. Applegate. 2012. Do resident and non-resident northern bobwhite hunters self-regulate harvest based on population size? Proceedings of the National Quail Symposium 7:148–154.

41. Williams, C. K., B. K. Sandercock, B. M. Collins, M. Lohr, and P. M. Castelli. 2012. A Mid-Atlantic and a national population model of northern bobwhite demographic sensitivity. Proceedings of the National Quail Symposium 7:163–172.

40. Williams, C. K., and P. M. Castelli. 2012. A historic perspective of the connectivity between waterfowl research and management. Pages 155–178 In Sands, J. P., S. J. DeMaso, L. A. Brennan, and M. J. Schnupp (eds). Wildlife science: Connecting Research With Management. CRC Press: Taylor Francis Group, Boca Raton, Florida, USA. Book won the 2013 Outstanding Book Award from Texas Chapter of The Wildlife Society.

39. Guerena, K. B., P. M. Castelli, T. C. Nichols, and C. K. Williams. 2012. Evaluation of a clutch containment method during hatch in geese: using resident Canada geese as an example. Wildlife Society Bulletin 36:376–379.

38. Ferris, G., V. D’Amico, and C. K. Williams. 2012. Determining effective riparian buffer width for nonnative plant exclusion and habitat enhancement. International Journal of Ecology. Article ID 170931:1–7.

37. Duren, K., J. J. Buler, W. Jones, and C. K. Williams. 2012. Effects of broadcasting calls during surveys to estimate density and occupancy of northern bobwhite. Wildlife Society Bulletin 36:16-20.

36. Cramer, D. M., P. M. Castelli, T. Yerkes, and C. K. Williams. 2012. Food resource availability for American black ducks wintering in southern New Jersey. Journal of Wildlife Management 76: 241–219.

2011

35. Jones, O., P. M. Castelli, and C. K. Williams. 2011. Observed herring gull kleptoparasitism of American black ducks. Journal of Fish and Wildlife Management 2:196–198.

34. Duren, K., J. J. Buler, W. Jones, and C. K. Williams. 2011. An improved multi-scale approach to modeling habitat occupancy of northern bobwhite. Journal of Wildlife Management 75:1700–1709.

33. Ladin, Z. S., P. M. Castelli, S. R. McWilliams, and C. K. Williams. 2011. Time energy budgets and food use of Atlantic brant across their wintering range. Journal of Wildlife Management 75:273–282.

32. Lohr, M., B. M. Collins, P. M. Castelli, C. K. Williams. 2011. Life on the edge: northern bobwhite ecology at the northern periphery of their range. Journal of Wildlife Management 75:52–60.

31. Long, B. and C. K. Williams. 2011. Mid-Atlantic Regional Issues in Bobwhite Conservation. Pages 149–155 in Palmer, W.E., T.M. Terhune, and D.F. McKenzie, eds. The National Bobwhite Conservation Initiative: A range-wide plan for recovering bobwhites. National Bobwhite Technical Committee Technical Publication, ver. 2.0, Knoxville, TN.

2010

30. Holtcamp, W. N., C. K. Williams, and W. E. Grant. 2010. Do invasive fire ants affect habitat selection within a small mammal community? International Journal of Ecology Article ID 642412:1–7

29. Colavecchio, A., and C. K. Williams. 2010. The northern bobwhite of the Mid-Atlantic: a landowners guide to their ecology and management. University of Delaware Cooperative Extension Bulletin Number 147. Newark, DE. 10pp.

28. Joppa, L. N., C. K. Williams, S. A. Temple, G. S. Casper. 2010. Environmental factors affecting sampling success of artificial cover objects. Herpetological Conservation and Biology 5:143–148

2009

27. Collins, B.M., C. K. Williams, and P. M. Castelli. 2009. Reproduction and microhabitat selection in a sharply declining Northern Bobwhite (Colinus virginianus) population. The Wilson Journal of Ornithology 121:688–695.

2008

26. Williams, C. K., and B. M. Collins. 2008. Mortality. Pages 2449–2455 In S. E. Jorgensen (ed.) Encyclopedia of Ecology. Elsevier Press, Oxford, England.

25. Sandercock, B. K., B. E. Jensen, C. K. Williams, R. D. Applegate. 2008. Demographic sensitivity of population change in the northern bobwhite: a life-stage simulation analysis. Journal of Wildlife Management 72:970–982.

24. Backlund, D. C., G. M. Marrone, C. K. Williams, K. Tilmon. 2008. Population estimate of the endangered American burying beetle, Nicrophorus americanus, (Coleoptera:Silphidae) in South Dakota. Coleopterists Bulletin 62:9–15.

23. Williams, C. K., M. D. Samuel, V. Baranyuk, E. Cooch, and D. Kraege. 2008. Winter fidelity and apparent survival of lesser snow goose populations in the Pacific Flyway. Journal of Wildlife Management 72:159–167.

2007

22. Helmus, M. R., T. J. Bland, C. K. Williams, and A. R. Ives. 2007. Phylogenetic measures of biodiversity. American Naturalist 169:68–83.

2004

21. Williams, C. K., A. R. Ives, R. D. Applegate, and J. Ripa. 2004. The collapse of cycles in the dynamics of North American grouse populations. Ecology Letters 7:1135–1142.

20. Williams, C. K., P. J. Rodrick-Williams, R. D. Applegate. 2004. Beliefs and characteristics of Kansas northern bobwhite hunters. Kansas Department of Wildlife and Parks Wildlife Bulletin No. 4.

19. Williams, C. K., F. H. Guthery, R. D. Applegate, M. Peterson. 2004. The northern bobwhite decline: scaling our management for the twenty-first century. Wildlife Society Bulletin 32:861–869.

18. Applegate, R. D., C. K. Williams, and R. R. Manes. 2004. Assuring the future of prairie grouse: dogmas, demagogues, and getting outside the box. Wildlife Society Bulletin 32:104–111.

17. Williams, C. K., R. S. Lutz, and R. D. Applegate. 2004. Winter survival and additive harvest in Kansas northern bobwhite coveys. Journal of Wildlife Management 68:94–100.

2003

16. Williams, C. K., A. R. Ives, and R. D. Applegate. 2003. Population dynamics across geographical ranges: time-series analysis of three small game species. Ecology 84:2654–2667.

15. Williams, C. K., R. S. Lutz, and R. D. Applegate. 2003. Optimal group size in northern bobwhite coveys. Animal Behaviour 66:377–387.

14. Applegate, R. D., and C. K. Williams. 2003. Use of roadside survey for gray and fox squirrel populations and harvest. Kansas Department of Wildlife and Parks Small Game Wildlife Bulletin 3.

13. Van Why, K., B. Flock, R. D. Applegate, and C. K. Williams. 2003. Northern bobwhite (Colinus virginianus) body mass in relation to consumption of red and white grain sorghum. Kansas Department of Wildlife and Parks Small Game Wildlife Bulletin 2.

2002

12. Williams, C. K., G. Ericsson, and T. Heberlein. 2002. A quantitative summary of attitudes toward wolves and their reintroduction (1972–2000). Wildlife Society Bulletin 30:575–584. Between 2010–2013, this article was the second highest assessed article (921 times) in the Wildlife Society Bulletin.

11. Applegate, R. D., C. K. Williams, and R. S. Lutz. 2002. The effect of flooding on northern bobwhite. Western North American Naturalist 62:227–229.

10. Van Why, K., C. K. Williams, R. D. Applegate, and B. E. Flock. 2002. A portable aviary for field observations of behavior. Journal of Field Ornithology 73:20–22.

2000

9. Williams, C. K., W. R. Davidson, R. S. Lutz, and R. D. Applegate. 2000. Health status of northern bobwhite quail (Colinus virginianus) in eastern Kansas. Avian Diseases 44:953–956.

8. Williams, C. K., R. D. Applegate, R. S. Lutz, and D. H. Rusch. 2000. A comparison of raptor densities and habitat use in Kansas cropland and rangeland ecosystems. Journal of Raptor Research 34:203–209.

7. Williams, C. K., R. S. Lutz, R. D. Applegate, and D. H. Rusch. 2000. Habitat use and survival of northern bobwhite in Kansas cropland and rangeland ecosystems during the harvest season. Canadian Journal of Zoology 78:1562–1566.

6. Williams, C. K., K. Van Why, and R. D. Applegate. 2000. Eastern woodrat (Neotoma floridana) consumption of northern bobwhite (Colinus virginianus). American Midland Naturalist 143:239–244.

1998

5. Applegate, R. D. and C. K. Williams. 1998. Long term small game trends from 30 years of Kansas rural mail carrier surveys. Transactions of the Kansas Academy of Science 101:95–100.

1997

4. Williams, C. K., R. D. McKown, J. K. Veatch, & R. D. Applegate. 1997. Baylisascaris sp. found in wild northern bobwhite (Colinus virginianus). Journal of Wildlife Diseases 33:158–160.

3. Peles, J. D., C. K. Williams, G. W. Barrett. 1997. Small mammal population dynamics in strip-cropped vs. monoculture agroecosystems. Journal of Sustainable Agriculture 9:51–60.

1995

2. Peles, J. D., C. K. Williams, G. W. Barrett. 1995. Ecological energetics of golden mice: the importance of food quality. American Midland Naturalist 133:373–376.

1994

1. Williams, C. K., V. Witmer, M. Casey, G. W. Barrett. 1994. The effects of strip-cropping on small mammal population dynamics in soybean agroecosystems. The Ohio Journal of Science 94:94–98.

 

 

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Contact Information
Dr. Chris Williams

Professor of Wildlife Ecology
Waterfowl and Upland Gamebird Program

Entomology and Wildlife Ecology
253 Townsend Hall

Newark, DE 19716
Phone: (302) 831-4592

Email: ckwillia@udel.edu