Isotopic Discrimination in the Double-Crested Cormorant (Phalacrocorax auritus). [PDF]
The diet-tissue discrimination factor is the amount by which a consumer's tissue varies isotopically from its diet, and is therefore a key element in models that use stable isotopes to estimate diet composition.
Elizabeth C Craig +4 more
doaj +5 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]
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
Population trends of seabirds in Mexican Islands at the California Current System. [PDF]
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
Host Range of Carp Edema Virus (CEV) during a Natural Mortality Event in a Minnesota Lake and Update of CEV Associated Mortality Events in the USA [PDF]
Mass mortality events of common carp (Cyprinus carpio, carp) associated with carp edema virus (CEV) alone or in coinfections with koi herpesvirus (KHV), is an emerging issue.
Isaiah E. Tolo +5 more
doaj +2 more sources
Amino acid-specific isotopes reveal changing five-dimensional niche segregation in Pacific seabirds over 50 years [PDF]
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
Epigenetic Responses to Anthropogenic Versus Natural Sources of Oil Exposure Differ in Wild Arctic Seabird Populations. [PDF]
ABSTRACT Anthropogenic pollution can have detrimental effects on organismal physiology, behavior, and fitness, but the underlying genomic mechanisms mediating these effects are not well understood. Epigenetic regulation, such as DNA methylation, has been proposed as a potential mechanism mediating these effects, but currently, there are few studies in ...
Ho WZ +12 more
europepmc +2 more sources
Hematology and serum chemistry of captive juvenile double-crested cormorants (Phalacrocorax auritus). [PDF]
Hematologic and serum chemical values were obtained for double-crested cormorants (Phalacrocorax auritus) to improve clinical diagnosis of disease in this species. Blood samples were collected from 20 captive double-crested cormorants at 4 to 6 weeks of age. Hematocrit and leukocyte concentrations were determined in heparinized blood. Concentrations of
Kuiken T, Danesik KL.
europepmc +2 more sources
Capture and telemetry techniques for double-crested cormorants (Phalacrocorax auritus) [PDF]
Author(s): King, D. Tommy; Tobin, Mark E. | Abstract: Double-crested Cormorants (Phalacrocorax auritus) often roost in cypress oxbows and nest on islands making their capture for research studies difficult. In the southeastern United States we used a capture technique involving a boat equipped with flood lights, flushing the birds out of their roost ...
King, D. Tommy, Tobin, Mark E.
openaire +3 more sources
Tracking the History and Ecological Changes of Rising Double-Crested Cormorant Populations Using Pond Sediments from Islands in Eastern Lake Ontario. [PDF]
In the Laurentian Great Lakes region, the double-crested cormorant (Phalacrocorax auritus) has seen a thousand-fold population increase in recent decades.
Emily M Stewart +7 more
doaj +1 more source
The Effect of Breathing Oxygen and Air on Diving Bradycardia in Cormorants (Phalacrocorax Auritus) [PDF]
ABSTRACT Cardiovascular chemoreceptors are crucial for the development of forced diving responses in dabbling ducks such as the mallard (Anas platyrhynchos). Denervation of the peripheral chemoreceptors or allowing the duck to breath 100 % oxygen before a forced dive eliminates or considerably delays the onset of noticeable bradycardia ...
D R, Jones, S, Larigakis
openaire +2 more sources

