Presentations by Lawrence D. Igl

Igl, L. D. and D. H. Johnson.  July 2006.  Changes in breeding bird populations in the Platte River Valley of Central Nebraska:  1979-1980 to 2001.  Twentieth North American Prairie Conference, Kearney, Nebraska.

Igl, L. D.  August 2006.  Plastic Ducks:  Are waterfowl arriving earlier in North Dakota in spring?  Fourth North American Duck Symposium, Bismarck, North Dakota. (Poster)

Igl, L. D. and D. H. Johnson.  July 2006.  Habitats of grassland breeding  birds in North Dakota:  1967 and 1992-1993. 20th North American Prairie Conference, Kearney, Nebraska.

Igl, L. D. and D. H. Johnson.  September 2005.  The foresting of America's heartland: how competing conservation strategies affect grassland bird populations.  The annual meeting of The Wildlife Society, Madison, Wisconsin. (Invited presentation)

Johnson, D. H., L. D. Igl, and J. A. Shaffer.  March 2005.  Recreated grasslands, restored wetlands, and renewable energy:  the response of breeding birds to anthropogenic activities in South Dakota.  Annual meeting of the South Dakota Academy of Science, Sioux Falls, South Dakota.  (Invited presentation)

Igl, L. D.  February 2005.  Phenological adaptability:  are migratory birds arriving earlier in the spring in North Dakota and should managers and biologists be concerned?  Annual meeting of the North Dakota Chapter of the Wildlife Society, Mandan, North Dakota.

Winter, M., D. H. Johnson, L. D. Igl., and M. T. Murphy.  December 2004.  Conservation Reserve Program: a useful tool to preserve North American grassland birds?  International Symposium on the Ecology and Conservation of Steppe-land Birds, Universitat de Lleida, Lleida, Spain. (Invited presentation)

Johnson, D. H., and L. D. Igl*.  July 2004.  CRP values for nongame birds.  Annual meeting of the Midwest Association of Fish and Wildlife Agencies, Washburn, North Dakota.

Igl, L. D. and D. H. Johnson. November 2003. Grassland breeding birds in the northern Great Plains: a long-term, large-scale evaluation of a long-term, large-scale cropland retirement program. Annual meeting of the Northern Plains Biological Symposium, Fargo, North Dakota.

Igl, L. D. and D. H. Johnson. August 2003. Changes in breeding bird populations in the Platte River Valley of Nebraska: 1979-80 to 2001. Annual Meeting of the American Ornithologists' Union, Champaigne-Urbana, Illinois.

Johnson, D. H., J. A. Shaffer, and L. D. Igl. July 2003. Birds at the interface: how wetland birds depend on grasslands. Annual meeting of The Society for Conservation Biology, Duluth, Minnesota.

Jamison, B. E., D. H. Johnson, and L. D. Igl. February 2003. Effects of seeding mixtures on breeding bird use of restored grasslands. Joint meeting of The North Dakota Chapter of The Wildlife Society and the Dakota Chapter of The American Fisheries Society, Bismarck, North Dakota.

Jamison, B. E., D. H. Johnson, and L. D. Igl. September 2002. Effects of seeding mixture composition on breeding bird use of planted grasslands in the northern Great Plains. Annual meeting of The Wildlife Society, Bismarck, North Dakota.

Igl, L. D., and D. H. Johnson. May 2002. The foresting of America's heartland and the proliferation of birds associated with trees and shrubs in North Dakota. Northwestern North Dakota Ornithological Conference, Minot, North Dakota.

Igl, L. D. April 2002. Sleeping with the enemy: patterns of cowbird parasitism and habitat use in the northern Great Plains. Monthly meeting of the Bismarck-Mandan Bird Club, Bismarck, North Dakota. (Invited Presentation)

Igl, L. D., and D. H. Johnson. March 2002. History does repeat itself: evaluating population changes by revisiting historic bird surveys. The third international Partners in Flight conference: A workshop on bird conservation, implementation, and integration, Monterey, California.

Igl, L. D., and D. H. Johnson. February 2002. Home on the range: patterns of cowbird parasitism and habitat use in the northern Great Plains. Annual meeting of the North Dakota Chapter of the Wildlife Society, Grand Forks, North Dakota.

Hahn, D. C., M. A. Ottinger, and L. D. Igl. August 2001. Role of maternal testosterone in competitive growth and behavior of parasitic cowbird offspring. Annual meeting of the American Ornithologists' Union, Seattle, Washington. (Poster)

Dechant, J. D., D. H. Johnson, C. M. Goldade, and L. D. Igl. April 2001. Responses of grassland birds to management practices: lessons from the literature. Annual meeting of the North Dakota Academy of Science, Bismarck, North Dakota.

Johnson, D. H., L. D. Igl, and M. D. Schwartz. April 2001. Dynamics of populations of grassland birds. Annual meeting of the Cooper Ornithological Society, Albuquerque, New Mexico.

Igl, L. D., D. H. Johnson, and H. A. Kantrud. December 2000. Grassland birds in North Dakota: have densities within habitats changed? Midwest Fish and Wildlife Conference, Minneapolis, Minnesota.

Igl, L. D. (presented for D. H. Johnson). October 2000. The effects of leafy spurge infestation on breeding birds of the Sheyenne National Grassland, ND. Annual meeting of Team Leafy Spurge, Rapid City, South Dakota.

Johnson, D. H., J. A. Dechant, L. D. Igl, M. B. Whitt, M. R. Hartman, and S. Anderson. September 1999. Wetland bird communities in North Dakota and South Dakota. Annual Meeting of The Wildlife Society, Austin, Texas.

Igl, L. D. August 1999. Grassland bird issues. U.S. Fish and Wildlife Service, Fergus Falls, Minnesota. (Invited Presentation)

Johnson, D. H., J. A. Dechant, L. D. Igl, M. B. Whitt, M. Hartman, and S. Anderson. August 1999. Habitat and landscape effects on wetland bird densities in North Dakota and South Dakota. Annual meeting of the American Ornithologists' Union, Cornell University, Ithaca, New York.

Johnson, D. H., J. A. Dechant, M. B. Whitt, M. R. Hartman, S. Anderson, and L. D. Igl. February 1999. Wetland Bird Communities in North Dakota and South Dakota. Annual meeting of The Wildlife Society, North Dakota.

Johnson, D. H., L. D Igl, and M. D. Schwartz. December 1998. Grassland Birds and the Conservation Reserve Program: Prospects for the Future. Annual meeting of the Midwest Fish and Wildlife Conference, Cincinnati, Ohio.

Johnson, D. H, L. D Igl, and M. D. Schwartz. August 1998. Effects of haying Conservation Reserve Program fields on breeding birds. Annual meeting of the Ecological Society of America, Baltimore, Maryland.

Igl, L. D., and D. H. Johnson. April 1998. Brown-headed Cowbirds in grasslands established by the Conservation Reserve Program in the northern Great Plains. Second North American Ornithological Conference, St. Louis, Missouri.

Igl, L. D., and D. H. Johnson. February 1998. Le Conte's Sparrow: ephemeral jewel of the northern Great Plains. Joint meeting of the North Dakota and Minnesota Chapters of the Wildlife Society, Fargo, North Dakota.

Johnson, D. H., L. D Igl, and M. D. Schwartz. February 1998. Effects of haying Conservation Reserve Program fields on breeding birds. Joint meeting of the North Dakota and Minnesota Chapters of the Wildlife Society, Fargo, North Dakota.

Igl, L. D. October 1997. Grazing effects on grassland birds in the Little Missouri National Grasslands. Little Missouri Working Group, U.S. Forest Service, Dickinson, North Dakota. (Invited Presentation)

Igl, L. D. April 1997. What makes a grassland bird a grassland bird? Annual meeting of The Montana Audubon, Billings, Montana. (Invited Presentation)

Igl, L. D., and B. M. Ballard. April 1997. Habitat use of migrating and wintering grassland birds in southern Texas. Annual meeting of the Wilson Ornithological Society, Manhattan, Kansas.

Johnson, D. H., L. D. Igl, and M. D. Schwartz. April 1997. Changes in breeding bird communities of CRP fields in the northern Great Plains. Annual meeting of the Wilson Ornithological Society, Manhattan, Kansas.

Igl, L. D., and D. H. Johnson. February 1997. Changes in breeding bird populations in North Dakota: 1967 and 1992-93. Monthly meeting of the Fargo-Moorhead Chapter of The National Audubon Society, Concordia College, Moorhead, Minnesota (Invited Presentation).

Igl, L. D., and D. H. Johnson. February 1997. Habitat associations of breeding birds in North Dakota: 1967 and 1992-93. Annual meeting of the North Dakota Chapter of The Wildlife Society, Mandan, North Dakota.

Johnson, D. H., T. L. Shaffer, S. C. Erstad, L. D. Igl, and D. L. Larson. April 1996. The biotic resources of the Great Plains: serving information on the Internet. Annual meeting of the North Dakota Academy of Science, Valley City, North Dakota.

Shaffer, T., D. Johnson, S. Erstad, L. Igl, and D. Larson. February 1996. Assessing information about biotic resources of the Great Plains on the Internet. Annual meeting of the North Dakota Chapter of the Wildlife Society, Grand Forks, North Dakota.

Basili, G. D., E. J. Finck, L. Igl, D. Reinking, K. Steigman, S. A. Temple, and J. L. Zimmerman. October 1995. Breeding biology of the Dickcissel. International Conference and Training Workshop on Conservation and Ecology of Grassland Birds and the Annual Meeting of the Association of Field Ornithologists, Tulsa, Oklahoma.

Igl, L. D., and D. H. Johnson. October 1995. Le Conte's Sparrows breeding in Conservation Reserve Program fields: precipitation and patterns of population change. International Conference and Training Workshop on Conservation and Ecology of Grassland Birds and the Annual Meeting of the Association of Field Ornithologists, Tulsa, Oklahoma.

Igl, L. D., and D. H. Johnson. October 1995. Stewart and Kantrud (1972) revisited: breeding bird population estimates and patterns of change in North Dakota, 1967 and 1992-93. International Conference and Training Workshop on Conservation and Ecology of Grassland Birds and the Annual Meeting of the Association of Field Ornithologists, Tulsa, Oklahoma.

Igl, L. D., and D. H. Johnson. February 1995. Contribution of the Conservation Reserve Program to populations of breeding birds in North Dakota. Annual meeting of the North Dakota Chapter of the Wildlife Society, Bismarck, North Dakota.

Igl, L. D., August 1994. The mission and activities of the Grasslands Ecosystem Initiative. Annual meeting of the Organization of Fish and Wildlife Information Managers, Mountain Lake, Virginia.

Igl, L. D., and D. H. Johnson. June 1994. Changes in breeding bird populations in the northern Great Plains: 1967 to present. Joint meeting of the American Ornithologists' Union, Cooper Ornithological Society, and Wilson Ornithological Society, Missoula, Montana.

Igl, L. D., and D. H. Johnson. February 1992. Changes in breeding bird populations in North Dakota, 1967-1992. Annual meeting of the North Dakota Chapter of the Wildlife Society, Bismarck, North Dakota.

Igl, L. D., L. B. Best, and B. J. Frawley. June 1990. The effects of drought on Dickcissel (Spiza americana) site fidelity and colonization patterns in alfalfa fields. Joint meeting of the American Ornithologists' Union and the Cooper Ornithological Society, Los Angeles, California.