Results 21 to 30 of about 856 (176)

Developing nondestructive techniques for managing conflicts between fisheries and double‐crested cormorant colonies

Wildlife Society Bulletin, 2015
Double‐crested cormorants (Phalacrocorax auritus) have been identified as the source of significant mortality to juvenile salmonids (Oncorhynchus spp.) in the Columbia River Basin.
Yasuko Suzuki, Daniel D. Roby, Donald E. Lyons, Karen N. Courtot, Ken Collis   +4 more
doaj   +1 more source

Management of Double-Crested Cormorants to Improve Sport Fisheries in Michigan: Three Case Studies

Human-Wildlife Interactions, 2017
Impacts of double-crested cormorants (Phalacrocorax auritus) to fisheries have been documented, but evaluation of the process and outcomes of cormorant management to reduce impacts on fisheries is lacking. We provide a synthesis of adaptive management of
Brian S. Dorr, Shauna L. Hanisch, Peter H. Butchko, David G. Fielder   +3 more
doaj   +1 more source

Double-crested Cormorant, Phalacrocorax auritus, egg-ejection

The Canadian field-naturalist, 1986
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Cody, William J., Lewin, Victor
openaire   +2 more sources

Spatial and temporal composition of the avifauna from the barrier islands of the San Ignacio-Navachiste-Macapule lagoon complex, Sinaloa, Mexico

Ciencias Marinas, 2010
We analyzed the composition and abundance of the avifuana inhabiting the barrier islands of the San Ignacio-Navachiste- Macapule lagoon system from July 2006 to June 2007. Species richness and relative abundance were determined for the whole complex and
G Sánchez-Bon, G Fernández, D Escobedo-Urías, J Torres-Torner, J A Cid-Becerra   +4 more
doaj   +1 more source

Using species distribution models to define nesting habitat of the eastern metapopulation of double‐crested cormorants

Ecology and Evolution, 2017
When organisms with similar phenotypes have conflicting management and conservation initiatives, approaches are needed to differentiate among subpopulations or discrete groups.
Kate L. Sheehan, Samuel T. Esswein, Brian S. Dorr, Greg K. Yarrow, Ron J. Johnson   +4 more
doaj   +1 more source

Estimating Waterbird Abundance on Catfish Aquaculture Ponds Using an Unmanned Aerial System

Human-Wildlife Interactions, 2019
In this study, we examined the use of an unmanned aerial system (UAS) to monitor fish-eating birds on catfish (Ictalurus spp.) aquaculture facilities in Mississippi, USA.
Paul C. Burr, Sathishkumar Samiappan, Lee A. Hathcock, Robert J. Moorhead, Brian S. Dorr   +4 more
doaj   +1 more source

The Nesting of the Great Cormorant (Phalacrocorax carbo) and the Double-crested Cormorant (Phalacrocorax auritus) in Nova Scotia in 1971

The Canadian field-naturalist, 1973
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Lock, Anthony R., Ross, R K
openaire   +2 more sources

Comparison of Sampling Strategies to Estimate Abundance of Double-Crested Cormorants in Western Mississippi

Human-Wildlife Interactions, 2017
We compared 2 sampling strategies designed to estimate abundance of double-crested cormorants (Phalacrocorax auritus, hereafter cormorants) on aquaculture ponds in western Mississippi.
Aaron T. Pearse , Brian S. Dorr, Stephen J. Dinsmore, Richard M. Kaminski   +3 more
doaj   +1 more source

Assessing the validity of the accelerometry technique for estimating the energy expenditure of diving double-crested cormorants Phalacrocorax auritus [PDF]

, 2011
Over the past few years, acceleration-data loggers have been used to provide calibrated proxies of energy expenditure: The accelerometry technique. Relationships between rate of oxygen consumption and a derivation of acceleration data termed "overall ...
Jones, DR, P. J. Butler, Wilson, R. P., White, C. R., M. R. Enstipp, Halsey, LG; id_orcid, C. R. White, Butler, PJ, Gremillet, D., Martin, GR, Halsey, LG, Martin, Graham, Enstipp, MR, Enstipp, M. R., Butler, P. J., Jones, D. R., White, Craig, G. R. Martin, D. R. Jones, R. P. Wilson, Rory Wilson, White, CR, L. G. Halsey, Gremillet, D, D. Grémillet, Butler, Patrick, Martin, G. R., Wilson, RP, Halsey, L. G.   +28 more
core   +1 more source

Changes in heron and egret populations on the Laurentian Great Lakes and connecting channels, 1977-2009

Avian Conservation and Ecology, 2015
Canadian and U.S. federal wildlife agencies completed four decadal surveys, spanning the years 1977 to 2009, to census colonial waterbirds breeding on the Great Lakes and adjoining bodies of water.
Scott A. Rush, Cynthia Pekarik, D.V. Weseloh, Francesca Cuthbert, David Moore, Linda Wires   +5 more
doaj   +1 more source