Results 1 to 10 of about 5,601 (127)

Isotopic Discrimination in the Double-Crested Cormorant (Phalacrocorax auritus). [PDF]

PLoS ONE, 2015
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, Brian S Dorr, Katie C Hanson-Dorr, Jed P Sparks, Paul D Curtis   +4 more
doaj   +4 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]

Ecol 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

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

PLoS 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, Yuliana Bedolla Guzmán, Evaristo Rojas Mayoral, Alfonso Aguirre-Muñoz, Patricia Koleff, Alejandro Aguilar Vargas, Fernando Álvarez Santana, Gustavo Arnaud, Alicia Aztorga Ornelas, Luis Felipe Beltrán Morales, Maritza Bello Yáñez, Humberto Berlanga García, Esmeralda Bravo Hernández, Ana Cárdenas Tapia, Aradit Castellanos Vera, Miguel Corrales Sauceda, Ariana Duarte Canizales, Alejandra Fabila Blanco, María Félix Lizárraga, Anely Fernández Robledo, Julio César Hernández Montoya, Alfonso Hernández Ríos, Eduardo Iñigo-Elias, Ángel Méndez Rosas, Braulio Rojas Mayoral, Fernando Solís Carlos, Alfredo Ortega-Rubio   +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]

Viruses, 2021
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, Soumesh K. Padhi, Peter J. Hundt, Przemyslaw G. Bajer, Sunil K. Mor, Nicholas B. D. Phelps   +5 more
doaj   +2 more sources

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

Scientific 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, Antonio Cuba, Emily S. Choy, John E. Elliott, Kyle H. Elliott   +4 more
doaj   +2 more sources

Epigenetic Responses to Anthropogenic Versus Natural Sources of Oil Exposure Differ in Wild Arctic Seabird Populations. [PDF]

Evol Appl
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, Lind Å, Dupuis-Smith R, Dwyer-Samuel F, Pilgrim S, Gear G, Laing R, Tomy G, Mallory ML, Enook J, Zahaby Y, Provencher JF, Barrett RDH.   +12 more
europepmc   +2 more sources

Tracking the History and Ecological Changes of Rising Double-Crested Cormorant Populations Using Pond Sediments from Islands in Eastern Lake Ontario. [PDF]

PLoS ONE, 2015
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, Neal Michelutti, Sarah Shenstone-Harris, Christopher Grooms, Chip Weseloh, Linda E Kimpe, Jules M Blais, John P Smol   +7 more
doaj   +1 more source

Fisheries restoration potential for a large lake ecosystem: using ecosystem models to examine dynamic relationships between walleye, cormorant, and perch

Ecology and Society, 2015
Increased population sizes of Double-crested Cormorants (Phalacrocorax auritus) and small-bodied (
Andrea M. McGregor, Christopher L. Davis, Carl J. Walters, Lee Foote   +3 more
doaj   +1 more source

Species‐ and origin‐specific susceptibility to bird predation among juvenile salmonids

Ecosphere, Volume 14, Issue 12, December 2023., 2023
Abstract Juvenile salmonids often experience high mortality rates during migration and bird predation is a common source of mortality. Research suggests that hatchery‐reared salmonids are more prone to predation than wild salmonids, and that Atlantic salmon (Salmo salar) experience lower predation than Sea trout (Salmo trutta), yet telemetry studies ...
Torbjörn Säterberg, Philip Jacobson, Maria Ovegård, Jörgen Rask, Johan Östergren, Niels Jepsen, Ann‐Britt Florin   +6 more
wiley   +1 more source

Waiting for the right time and tide: The fine‐scale migratory behavior of river herring in two coastal New England streams

Marine and Coastal Fisheries, Volume 15, Issue 5, October 2023., 2023
Abstract Objective Alewife Alosa pseudoharengus and Blueback Herring A. aestivalis, collectively referred to as river herring, are anadromous clupeids inhabiting the North American Atlantic coast. Although the seasonal patterns of their spawning migration are well studied and predictable, the fine‐scale movements are still poorly resolved. Methods This
Christopher B. Rillahan, Pingguo He
wiley   +1 more source