Results 21 to 30 of about 3,181 (180)

Effects of Aquaculture on Migration and Movement Patterns of Double-Crested Cormorants

open access: yesHuman-Wildlife Interactions, 2017
We analyzed 10,620 recovery records for double-crested cormorants (Phalacrocorax auritus) banded as nestlings from 1923 to 2006 to determine the population’s age structure, migration routes, dispersal patterns, and the possible influence of the expansion
D. Tommy King   +3 more
doaj   +1 more source

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

open access: yesWildlife 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   +4 more
doaj   +1 more source

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

open access: yesHuman-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   +3 more
doaj   +1 more source

Gravel pits support waterbird diversity in an urban landscape [PDF]

open access: yes, 2009
We assessed the benefit of 11 gravel pits for the settlement of waterbird communities in an urbanized area lacking natural wetlands. Gravel pits captured 57% of the regional species pool of aquatic birds.
A. Gaujard   +22 more
core   +5 more sources

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

open access: yesCiencias 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   +4 more
doaj   +1 more source

The multi-scale aggregative response of cormorants to the mass stocking of fish in rivers [PDF]

open access: yes, 2013
journal ...
Arima Tomoko   +4 more
core   +1 more source

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

open access: yesEcology 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   +4 more
doaj   +1 more source

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

open access: yesHuman-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   +4 more
doaj   +1 more source

Metabolic rate throughout the annual cycle reveals the demands of an Arctic existence in Great Cormorants [PDF]

open access: yes, 2011
Aquatic endotherms living in polar regions are faced with a multitude of challenges, including low air and water temperatures and low illumination, especially in winter. Like other endotherms from cold environments, Great Cormorants (Phalacrocorax carbo)
Ancel A.   +17 more
core   +1 more source

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

open access: yesHuman-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   +3 more
doaj   +1 more source

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