Patuxent Wildlife Research Center

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Daniel Twedt


USGS Professional Page:

Areas of Study

Monitoring Birds in National Parks of the Gulf Coast Network

Forest Structure Resulting from ‘Wildlife Forestry Silviculture’

Bats in Forests Managed for Wildlife



Twedt, D. J., C.-L. P. Phillip, M. P. Guilfoyle, and R. R. Wilson. 2016. Forest structure of oak plantations after silvicultural treatment to enhance habitat for wildlife. Pages 113-121 in Callie Jo Schweitzer, Wayne K. Clatterbuck, and Christopher M. Oswalt, editors. Proceedings of the 18th Biennial Southern Silvicultural Research Conference. USDA Forest Service, Southern Research Station , x, 627 pp. Abstract

Mitchell, M., R. R. Wilson, D. J. Twedt, A. E. Mini, and J. D. James. 2016. Object-based forest classification to facilitate landscape-scale conservation in the Mississippi Alluvial Valley. Remote Sensing Applications: Society and Environment 4(55-60) Abstract


Twedt, D. J. 2015. Estimating regional landbird populations from enhanced North American Breeding Bird Surveys. Journal of Field Ornithology 86(4):352-368. Abstract

Twedt, D. J., A. J. Ayala, and M. R. Shickel. 2015. Leaf-on canopy closure in broadleaf deciduous forests predicted during winter. Forest Science 61(5):926-931. Abstract

Twedt, D. J. and J. M. Linz. 2015. Flight feather molt in yellow-headed blackbirds (Xanthocephalus xanthocephalus) in North Dakota. The Wilson Journal of Ornithology 127(4):622-629. Abstract


Evans, K. O., L. W. Jr. Burger, S. K. Riffell, M. D. Smith, D. J. Twedt , R. R. Wilson , S. Vorisek, C. Rideout, and K. Heyden. 2014. Avian response to conservation buffers in agricultural landscapes during winter. Wildlife Society Bulletin 38(2):257-264. Abstract


Twedt, D. J. 2013. Wintering and Breeding Bird Monitoring Data Analysis 2010-2013: San Antonio Missions National Historical Park. Natural Resource Data Series NPS/GULN/NRDS2013/556 . U.S. National Park Service, Fort Collins, CO. v, 24 pp. Abstract , PDF

Twedt, D. J. 2013. Foraging habitat for shorebirds in southeastern Missouri and its predicted future availability. Wetlands 33(4):667-678. Abstract

Twedt, D. J. and S. G. Somershoe. 2013. Regeneration in bottomland forest canopy gaps six years after variable retention harvests to enhance wildlife habitat. Pages 261-269 in James M. Guldin, editor. Proceedings of the Fifteenth Biennial Southern Silvicultural Research Conference, Hot Springs, Arkansas, November 2008. General Technical Report SRS-175 U.S. Forest Service, Southern Research Station, Asheville, NC. vi, 585 pp. Abstract


Twedt, D. J. 2012. Dead wood relative to slope severity in mesic loess bluff hardwood forests . Pages 322-329 in Samantha Weber, editor. Rethinking Protected Areas in a Changing World: Proceedings of the 2011 GWS Biennial Conference on Parks, Protected Areas, and Cultural Sites. The George Wright Society., Hancock, Michigan. 423 pp. Abstract

Twedt, D. J. 2012. Wildlife Forestry. Pages 161-190 in Clement Akais Okia, editor. Global Perspectives on Sustainable Forest Management. InTech, Rijeka, Croatia. xii, 300 pp. Abstract , PDF


Twedt, D. J. 2011. Common Grackle breeding on bottomland forest restoration sites. Southeastern Naturalist 10(1):1-10. Abstract


Twedt, D. J., S. G. Somershoe, K. R. HazIer, and R. J. Cooper. 2010. Landscape and vegetation effects on avian reproduction on bottomland forest restorations. Journal of Wildlife Management 74(3):423-436. Abstract

Twedt, D. J., J. M. Tirpak, D. T. Jones-Farrand, F. R. Thompson, III, W. B. Uihlein, III, and J. A. Fitzgerald. 2010. Change in avian abundance predicted from regional forest inventory data. Forest Ecology and Management 260(7):1241-1250. Abstract

Jones-Farrand, D. T., J. M. Tirpak, F. R. Thompson, III, D. J. Twedt, C. K. Baxter, J. A. Fitzgerald, and W. B. Uihlein, III. 2009. A decision support tool for setting population objectives for priority landbirds in the Central Hardwoods and West Gulf Coastal Plain/Ouachitas Bird Conservation Regions. Pages 377-387 in Terrell D. Rich, Coro Arizmendi, Dean W. Demarest, and Craig Thompson, editors. Tundra to Tropics: Connecting birds, habitats and people. Proceedings of the Fourth International Partners in Flight Conference. Partners in Flight, McAllen, Texas. viii, 712 pp. Abstract , PDF


Norris, J. L., M. J. Chamberlain, and D. J. Twedt. 2009. Effects of wildlife forestry on abundance of breeding birds in bottomland hardwood forests of Louisiana. Journal of Wildlife Management 73(8):1368-1379. Abstract

Tirpak, J. M., D. T. Jones-Farrand, F. R. Thompson, D. J. Twedt, C. K. Baxter, J. A. Fitzgerald, and W. B. Uihlein, III. 2009. Assessing ecoregional-scale Habitat Suitability Index Models for priority landbirds. Journal of Wildlife Management 73(8):1307-1315. Abstract

Tirpak, J. M., D. T. Jones-Farrand, F. R. Thompson, III, D. J. Twedt, M. D. Nelson, and W. B. Uihlein, III. 2009. Predicting bird habitat quality from a geospatial analysis of FIA data. Pages 171-179 in Ronald E. McRoberts, Gregory A. Reams, Paul C. Van Deusen, and William H. McWilliams, editors. Proceedings of the eighth annual forest inventory and analysis symposium, 2006 October 16-19, Monterey, California. General Technical Report WO-79. U.S. Forest Service, Washington, D.C. 408 pp. Abstract

Tirpak, J. M., D. T. Jones-Farrand, F. R. Thompson, III, D. J. Twedt, and W. B. Uihlein, III. 2009. Multiscale habitat suitability index models for priority landbirds in the Central Hardwoods and West Gulf Coastal Plain/Ouachitas Bird Conservation Regions. General Technical Report NRS-49. U. S. Forest Service, Northern Research Station, Newtown Square, PA. 195 pp. Abstract , PDF

Twedt, D. J. and S. G. Somershoe. 2009. Bird response to prescribed silvicultural treatments in bottomland hardwood forests. Journal of Wildlife Management 73(7):1140-1150. Abstract


Twedt, D. J. 2008. Longevity records for Acadian flycatcher and white-eyed vireo following prescribed timber harvest. North American Bird Bander 33(2):67-68.

Twedt, D. J., P. B. Hamel, and M. S. Woodrey. 2008. Winter bird population studies and project prairie birds for surveying grassland birds. Southeastern Naturalist 7(1):11-18. Abstract

Twedt, D. J. and S. G. Somershoe. 2008. Bird response to silviculture induced change in forest structure within bottomland hardwood forests. Pages addendum (abstract) in . Tundra to Tropics: Connecting Birds, Habitats and People: 4th International Partners in Flight Conference, 13-16 February 2008, McAllen, Texas: Abstracts. 138 pp. PDF

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Last Updated: June 2016

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