Results 11 to 20 of about 378 (155)

Amino acid-specific isotopes reveal changing five-dimensional niche segregation in Pacific seabirds over 50 years [PDF]

open access: yesScientific Reports
Hutchison’s niche theory suggests that coexisting competing species occupy non-overlapping hypervolumes, which are theoretical spaces encompassing more than three dimensions, within an n-dimensional space.
Francis van Oordt   +4 more
doaj   +2 more sources

Development and characterization of a double-crested cormorant hepatic cell line, DCH22, for chemical screening [PDF]

open access: yesFrontiers in Toxicology
There are currently no available cell lines for the ecologically relevant colonial waterbird species, the double-crested cormorant (DCCO). DCCOs are high trophic level aquatic birds that are used for routine contaminant monitoring programs in the ...
Tasnia Sharin   +2 more
doaj   +2 more sources

Population trends of seabirds in Mexican Islands at the California Current System. [PDF]

open access: yesPLoS ONE, 2022
The Baja California Pacific Islands (BCPI) is a seabird hotspot in the southern California Current System supporting 129 seabird breeding populations of 23 species and over one million birds annually.
Federico Méndez Sánchez   +26 more
doaj   +2 more sources

Holding a wing horizontal: Roles for muscles of the pectoral girdle other than the main two flight muscles. [PDF]

open access: yesJ Anat
This report explores which muscles of the pectoral girdle are employed to allow birds to hold their wings horizontally with a level aerofoil surface during a glide. Abstract Whilst many birds glide briefly with wings held horizontally, some species maintain this posture for extended periods during soaring.
Deeming DC, Mosto MC.
europepmc   +2 more sources

Assessing Biodiversity at Eastern Oyster (<i>Crassostrea virginica</i>) Aquaculture and Reef Sites Utilizing Real-Time Monitoring and Environmental DNA in Rehoboth Bay, Delaware, USA. [PDF]

open access: yesEcol Evol
Eastern oysters (Crassostrea virginica) are a keystone species and vital to the commercial shellfish industry, acting as environmental engineers that enhance biodiversity. To study their impact, real‐time monitoring and Environmental DNA analysis were conducted at various sites in Rehoboth Bay, Delaware and 23 species were identified, with Spot ...
Attarwala T, Parsaeimehr A, Ozbay G.
europepmc   +2 more sources

Book Review The Double-Crested Cormorant: Issues and Management

open access: yesHuman-Wildlife Interactions, 2017
Fish-eating birds and their interactions with fisheries cause mixed feelings for many people. Avian and human fisheries are perceived to be in conflict throughout the world, particularly in areas where piscivorous bird populations are increasing numerically and expanding geographically.
Valerie M. Burton
doaj   +3 more sources

The Effectiveness of Commercially Available Double-Crested Cormorant (Nannopterum auritus) Deterrent Methods in Reducing Loafing Time on Floating Oyster Cages

open access: yesDiversity, 2023
The Wildlife Services—National Wildlife Research Center Mississippi Field Station, working in conjunction with Mississippi State University, conducted a study to evaluate the effectiveness of several non-lethal, commercial, physical bird deterrents ...
Fred L. Cunningham   +5 more
doaj   +1 more source

Estimating potential menhaden consumption by double-crested cormorants along the coast of North Carolina

open access: yesFrontiers in Marine Science, 2023
The south Atlantic coast supports one of the highest assemblages of non-breeding double-crested cormorants (Nannopterum auritum) known and is a convergence area for Atlantic menhaden (Brevoortia tyrannus) during the winter months.
Bryan D. Watts   +3 more
doaj   +1 more source

Double-crested Cormorants [PDF]

open access: yes, 2016
The history of conflict between double-crested cormorants and human interest in fisheries is long and convoluted. Overall, double-crested cormorants are not major consumers of commercial and sportfish species. However, exceptions have been recorded at specific sites with documented impacts on local fisheries.
Brian S. Dorr   +4 more
openaire   +1 more source

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