A partnership between Oregon State University, Real Time Research,
and the USGS - Oregon Cooperative Fish and Wildlife Research Unit

Peer-reviewed Publications

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Anderson, C.D., D.D. Roby, and K. Collis. 2004. Conservation implications of the large colony of double-crested cormorants on East Sand Island, Columbia River estuary, Oregon, USA. Waterbirds 27:155-160.

Anderson, C.D., D.D. Roby, and K. Collis. 2004. Foraging patterns of male and female double-crested cormorants nesting in the Columbia River estuary. Canadian Journal of Zoology 82:541-554.

Anderson, S.K., D.D. Roby, D.E. Lyons, and K. Collis. 2005. Factors affecting chick provisioning by Caspian terns nesting in the Columbia River estuary. Waterbirds 28:95-105. 

Anderson, S.K., D.D. Roby, D.E. Lyons, and K. Collis. 2007. Relationship of Caspian tern foraging ecology to nesting success in the Columbia River estuary, Oregon, USA. Estuarine, Coastal, and Shelf Science 73:447-456.

Antolos, M., D.D. Roby, and K. Collis. 2004. Breeding ecology of Caspian terns at colonies on the Columbia Plateau. Northwest Science 78:303-312.

Antolos, M., D.D. Roby, D.E. Lyons, K. Collis, A.F. Evans, M. Hawbecker, and B.A. Ryan. 2005. Caspian tern predation on juvenile salmonids in the Mid-Columbia River. Transactions of the American Fisheries Society 134:466-480.

Antolos, M., D.D. Roby, D.E. Lyons, S.K. Anderson, and K. Collis. 2006. Effects of nest density, location, and timing on breeding success of Caspian terns. Waterbirds 29:465-472.

Collis, K., D.D. Roby, K.W. Larson, L.J. Adrean, K. Nelson, A.F. Evans, D. Battaglia, D.E. Lyons, T. Marcella, and A. Patterson. In review. Trends in Caspian tern nesting and diet in San Francisco Bay: Management Implications.  Journal of Wildlife Management

Collis, K., D.D. Roby, D.P. Craig, B.A. Ryan, and R.D. Ledgerwood. 2001. Colonial waterbird predation on juvenile salmonids tagged with Passive Integrated Transponders in the Columbia River Estuary: Vulnerability of different species, stocks, and rearing types. Transactions of the American Fisheries Society 130:385–396. 

Collis, K., D.D. Roby, D.P. Craig, S. Adamany, J. Adkins, and D.E. Lyons. 2002. Colony size and diet composition of piscivorous waterbirds on the lower Columbia River: Implications for losses of juvenile salmonids to avian predation. Transactions of the American Fisheries Society 131:537–550.

Collis, K., D.D. Roby, C.W. Thompson, D.E. Lyons, and M. Tirhi. 2002. Barges as temporary breeding sites for Caspian terns: Assessing potential sites for colony restoration. Wildlife Society Bulletin 30:1140–1149.

Evans, A.F., D.D. Roby, K. Collis, B.M. Cramer, J.A. Sheggeby, L.J. Adrean, D.S. Battaglia, and D.E. Lyons. In review. Recovery of coded wire tags on a Caspian tern colony in San Francisco Bay: A technique to evaluate impacts of avian predation on juvenile salmonids.  North American Journal of Fisheries Management.

Lyons, D.E., D.D. Roby, and K. Collis. 2005. Foraging ecology of Caspian terns in the Columbia River estuary, USA. Waterbirds 28(3):280-291.

Lyons , D.E., D.D. Roby, and K. Collis. 2007. Foraging patterns of Caspian terns and double-crested cormorants in the Columbia River estuary. Northwest Science 81:91-103.

Matthews, S.E., D.P. Craig, K. Collis, and D.D. Roby. 2003. Double-crested Cormorant (Phalacrocorax auritus). Pp. 56-58 in D.B. Marshall, M.G. Hunter, and A.L. Contreras (eds.). Birds of Oregon: A General Reference. Oregon State University Press, Corvallis, OR.

Roby, D.D., K. Collis, D.E. Lyons, D.P. Craig, J. Adkins, A.M. Myers, and R.M. Suryan. 2002. Effects of colony relocation on diet and productivity of Caspian terns. Journal of Wildlife Management 66:662–673.

Roby, D.D., K. Collis, D.E. Lyons, D.P. Craig, and M. Antolos. 2003. Caspian Tern (Sterna caspia). Pp. 277-279 in D.B. Marshall, M.G. Hunter, and A.L. Contreras (eds.). Birds of Oregon: A General Reference. Oregon State University Press, Corvallis, OR.

Roby, D.D., D.E. Lyons, D.P. Craig, K. Collis, and G.H. Visser. 2003. Quantifying the effects of predators on endangered species using a bioenergetics approach: Caspian terns and juvenile salmonids in the Columbia River estuary. Canadian Journal of Zoology 81:250–265.

Roby, D.D., K. Collis, and D.E. Lyons. 2003. Conservation and management for fish-eating birds and endangered salmon. Pp. 161-165 in C.J. Ralph and T.D. Rich (eds.). Bird conservation implementation and integration in the Americas: Proceedings of the Third International Partners in Flight Conference. USDA Forest Service Gen. Tech. Rep. PSW-GTR-191.

Suryan, R.M., D.P. Craig, D.D. Roby, N.D. Chelgren, K. Collis, W.D. Shuford, and D.E. Lyons. 2004. Redistribution and growth of the Caspian tern population in the Pacific coast region of North America, 1981-2000. Condor 106:777-790. 

Wright, S.K., D.D. Roby, and R.G. Anthony. 2007. Responses of California brown pelicans to disturbances at a large Oregon roost. Waterbirds 30:479-487.


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