Results 21 to 30 of about 42,814 (235)

First‐ever satellite tracking of Black Terns (Chlidonias niger): Insights into home range and habitat selection

open access: yesEcology and Evolution, 2023
Understanding animal movement across the annual cycle is critical for developing appropriate conservation plans, but the large size and high cost of tracking devices can limit the spatial and temporal resolution at which movement data can be collected ...
Ann E. McKellar, Sarah J. Clements
doaj   +1 more source

Measuring behavioral responses of sea turtles, saltwater crocodiles, and crested terns to drone disturbance to define ethical operating thresholds

open access: yesPLoS ONE, 2018
Drones are being increasingly used in innovative ways to enhance environmental research and conservation. Despite their widespread use for wildlife studies, there are few scientifically justified guidelines that provide minimum distances at which ...
Elizabeth Bevan   +5 more
semanticscholar   +1 more source

Selective foraging behavior of seabirds in small‐scale slicks

open access: yesLimnology and Oceanography Letters, 2023
Marine predator foraging opportunities are often driven by dynamic physical processes enhancing prey accessibility. Surface slicks are ubiquitous yet ephemeral ocean features where convergent flows accumulate flotsam, concentrating marine organisms and ...
Lilian Lieber   +6 more
doaj   +1 more source

Foraging Habitat and Chick Diets of Roseate Tern, Sterna dougallii, Breeding on Country Island, Nova Scotia

open access: yesAvian Conservation and Ecology, 2007
Breeding seabirds are threatened by human activities that affect nesting and foraging habitat. In Canada, one of the seabirds most at risk of extirpation is the Roseate Tern, Sterna dougallii. Although critical nesting habitat has been identified for the
Jennifer C. Rock   +2 more
doaj   +1 more source

Detection and Phylogenetic Characterization of a Novel Herpesvirus in Sooty Terns Onychoprion fuscatus

open access: yesFrontiers in Veterinary Science, 2020
Since 2005, we have recorded annual episodes of alphaherpesvirus outbreaks in chicks of magnificent frigatebird Fregata magnificens on the Ile du Grand Connétable Nature Reserve in French Guiana.
Manrico Sebastiano   +8 more
doaj   +1 more source

Migratory routes and wintering locations of declining inland North American Common Terns

open access: yesThe AUK: A Quarterly Journal of Ornithology, 2018
Common Terns (Sterna hirundo) breeding at inland lakes in North America have experienced significant population declines since the 1960s. Although management actions aimed at mitigating effects of habitat loss and predation have been largely effective ...
Annie M Bracey   +11 more
semanticscholar   +1 more source

Pre-breeding foraging ecology of three tern species nesting in the Gulf of Maine

open access: yesAvian Conservation and Ecology, 2022
A variety of seabird species migrate annually from wintering grounds in the Southern Hemisphere to the Gulf of Maine, USA to breed and raise their young.
Rachel M. Bratton   +5 more
doaj  

Long-term population trends of Sooty Terns Onychoprion fuscatus: implications for conservation status

open access: yesPopulation Ecology, 2017
Seabirds have suffered dramatic declines in population over recent decades. The most abundant seabirds of tropical oceans are Sooty Terns Onychoprion fuscatus and they have an IUCN Red List category of ‘Least Concern’.
B. Hughes   +3 more
semanticscholar   +1 more source

Generation and characterisation of a humanised GLP-1 receptor mouse model for translational drug developmentResearch in context

open access: yesEBioMedicine
Summary: Background: Injectable peptide-based glucagon-like peptide-1 receptor (GLP1R) agonists (GLP1RAs) are effective treatments for obesity and diabetes but are limited by patient compliance and scalability challenges.
Nina Sonne   +15 more
doaj   +1 more source

Top-Down and Bottom-Up Interactions Influence Fledging Success at North America’s Largest Colony of Caspian Terns (Hydroprogne caspia)

open access: yesEstuaries and Coasts, 2017
Our study investigated the influence of bottom-up and top-down drivers on the declining fledging success at a once thriving breeding colony of Caspian terns (Hydroprogne caspia).
Stefanie Collar, D. Roby, D. Lyons
semanticscholar   +1 more source

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