Academic publications

Sliwinski, M., and Koper, N. 2012. Grassland bird responses to three edge types relative to display height, resource-use, and territory sizes in a fragmented mixed-grass prairie. Avian Conservation and Ecology, 7 (2): 6 URL: http://www.ace-eco.org/vol7/iss2/art6/

DeRuyck, C., Hobson, K., Koper, N., Larson, K., and Wassenaar, L. 2012. An appraisal of the use of Hydrogen isotope methods to delineate origins of migratory saw-whet owls in North America. Condor, 33 pp. Accepted Sept. 20, 2012. in press.

Lusk, J. and Koper, N. 2012. Effects of Grazing on Songbird Nesting Success in Southwestern Saskatchewan. Rangeland Ecology and Management, 20 pp. Accepted Nov. 28, 2012. In press.

Krause-Danielsen, A., Rutherford, P., and Koper, N. 2012. The importance of vegetation structure and artificial cover for prairie skinks (Plestiodon septentrionalis) on exurban land. Journal of Herpetology,  Accepted Dec. 31, 2012. In press.

Bruinsma, D. and Koper, N. 2012. Review of conspecific attraction and area sensitivity of grassland birds. Great Plains Research, 22:187-194.

Baschuk, M., Koper, N., Wrubleski, D.A., and Goldsborough, G. 2012. Effects of water depth, cover, and food resources on habitat use of marsh birds and waterfowl in boreal wetlands of Manitoba, Canada. Waterbirds, 35:44-55.

Ranellucci, C., Koper, N., andHenderson,D.C. 2012. Twice-over rotational grazing and its impacts on grassland songbird abundance and habitat structure. Rangeland Ecology and Management, 65: 109-118.

De Ruyck, C., Duncan, J., and Koper, N. 2012. Northern saw-whet owl migratory behaviour, demographics, and population trends in Manitoba. Journal of Raptor Research, 46: 84-97.

Koper, N. and Manseau, M. 2012. A guide to developing resource selection functions with satellite telemetry data. Rangifer, Special Issue No. 20: 195-203.

Koper, N. and Nudds, T. 2011. Progress in research on grassland bird conservation and ecology. Avian Conservation and Ecology, 6 (1): 6. [online] URL: http://www.ace-eco.org/vol6/iss1/art6/  (guest editorial)

Koper, N. 2011. Introducing conservation livestock grazing in protected mixed-grass prairies: Grasslands National Park of Canada. In, A Paradigm shift in livestock management: from resource sufficiency to functional integrity. Ed.: Kammili, T., Hubert, B., and Tourrand, J-F. Cardère éditeur Lirac, France. 97 – 115. (invited)

Koper, N., Mozel, K.E., and Henderson, D.C. 2010. Recent declines in northern tall-grass prairies and effects of patch structure on community persistence. Biological Conservation, 143: 220-229.

Less than 1% of Manitoba’s tall-grass prairies remain. Photo by Kristin Mozel.

 Barnett, A.G., Koper, N., Dobson, A.J., Manseau, M., and Schmiegelow, F.K.A. 2010. Selecting the correct variance-covariance structure for longitudinal data in ecology: a comparison of Akaike, quasi-information and deviance information criteria. Methods in Ecology and Evolution, 1: 15-24.

Koper, N. and Manseau, M. 2009. Generalized estimating equations and generalized linear mixed-effects models for modeling resource selection. Journal of Applied Ecology, 46: 590-599.

Woodland caribou. Photo by Micheline Manseau.

Koper, N., Walker, D.J., and Champagne, J. 2009. Nonlinear effects of distance to habitat edge on Sprague’s pipits in southern Alberta, Canada. Landscape Ecology, 24: 1287-1297.

Sprague’s pipit. Photo by Jen Lusk.

Smith, A. C., Koper, N., Francis, C. M., and Fahrig, L. 2009. Confronting collinearity: comparing methods for disentangling effects of habitat loss and fragmentation. Landscape Ecology, 24: 1271-1285.

Koper, N., Henderson, D., Wilmshurst, J., Fargey, P., and Sissons, R. 2008. Design and analysis of rangeland experiments along continuous gradients. Rangeland Ecology and Management, 61(6): 605-613.

One of many spectacular sunsets in Grasslands National Park.Hills in Grasslands National Park.

Koper, N. and Schmiegelow, F.K.A. 2007. Does habitat management for duck productivity affect songbird nesting success? Journal of Wildlife Management, 71: 2249-2257.

6-day-old Sprague’s pipit nestlings. Photo by Emily Pipher.

Koper, N., Schmiegelow, F.K.A., and Merrill, E.H. 2007. Residuals cannot distinguish between ecological effects of habitat amount and fragmentation: implications for the debate. Landscape Ecology, 22: 811-820.

Koper, N., and Schmiegelow, F.K.A. 2006. A multi-scaled analysis of avian response to habitat amount and fragmentation in the Canadian dry mixed-grass prairie. Landscape Ecology, 21: 1045-1059.

Modern grasslands are mosaics of agricultural habitats. Photo by Maggi Sliwinski.

Koper, N., and Schmiegelow, F.K.A. 2006. Effects of habitat management for ducks on target and non-target species. Journal of Wildlife Management, 70(3): 823-834.

Stephenson, G.L., Princz J.I., Koper, N., Miasek, P.G. 2001. Terrestrial toxicity testing with volatile substances. In, Environmental Toxicology and Risk Assessment:  Science, Policy, and Standardization – Implications for Environmental Decisions:  Tenth Volume, ASTM STP 1403, B. M. Greenberg, R. N. Hull, M. H. Roberts, Jr., and R. W. Gensemer, Eds., American Society for Testing and Materials, West Conshohocken, PA, 2001: 230-252.

Stephenson, G.L., Feisthauer, N.C., Koper, N., McCann, J.H., and Scroggins, R.P. 2001. The influence of four types of water on seedling emergence and growth of barley and the toxic interaction with Copper Sulfate. In, Environmental Toxicology and Risk Assessment: Science, Policy and Standardization – Implications for Environmental Decisions: Tenth Volume, ASTM STP 1403, B.M. Greenberg, R.N. Hull, M.H. Roberts, Jr., and R.W. Gensemer, Eds., American Society for Testing and Materials, West Conshohocken, PA, 2001: 134-145.

Koper, N., and Brooks, R.J. 2000. Environmental constraints on growth of painted turtles (Chrysemys picta) in northern climates. Herpetologica, 56(4): 421-432.

Stephenson, G.L., Koper, N., Atkinson, G.F., Solomon, K.R., and Scroggins, R.P. 2000. Use of nonlinear regression techniques for describing concentration-response relationships for plant species exposed to contaminated site soils. Environmental Toxicology and Chemistry, 19(12): 2968-2981.

Koper, N., and Brooks, R.J. 1998. Population estimators and unequal catchability in painted turtles. Canadian Journal of Zoology, 76(3): 458-465.

Krawchuk, M.A., Koper, N., and Brooks, R. J. 1997. Observations of a possible cleaning symbiosis between Painted Turtles, Chrysemys picta, and Snapping Turtles, Chelydra serpentina, in central Ontario. Canadian Field-Naturalist, 111(2): 315-317.

Brooks, R.J., Krawchuk, M.A., Stevens, C., and Koper, N. 1997. Testing the precision and accuracy of age estimation using lines in scutes of Chelydra serpentina and Chrysemys picta. Journal of Herpetology, 31(4): 521-529.