Results 61 to 70 of about 14,915 (237)

Geolocation and immersion loggers reveal year‐round residency and facilitate nutrient deposition rate estimation of adult red‐footed boobies in the Chagos Archipelago, tropical Indian Ocean

Journal of Avian Biology
Bio‐logging has revealed much about high‐latitude seabird migratory strategies, but migratory behaviour in tropical species may differ, with implications for understanding nutrient deposition.
Stephen C. Votier, Grace Corcoran, Pete Carr, Ruth E. Dunn, Robin Freeman, Malcolm A. C. Nicoll, Hannah Wood, Alice M. Trevail   +7 more
doaj   +1 more source

Retrospective image analysis for long‐term demography using Google Earth imagery

Remote Sensing in Ecology and Conservation, EarlyView.
We demonstrate that high‐resolution Google Earth imagery, combined with minimal field validation, enables retrospective tracking of individual invasive plants. The image shows one of the monitored individuals of Opuntia sp. in Greece. Our approach reveals long‐term demographic patterns, recruitment dynamics, and spatial expansion without continuous ...
Erola Fenollosa, Garrett Cohen, Roberto Salguero‐Gómez   +2 more
wiley   +1 more source

Cross‐Validation of Diet Determination Methods for Seabird Conservation

Environmental DNA
Seabirds are recognized as one of the most vulnerable groups of birds, with around a third of species identified as globally threatened. The conservation of seabirds is often linked with their feeding and diet, due to undesirable interactions with human ...
Aimee L. van derReis, Chris Lalas, Rob Schuckard, Karen L. Middlemiss, Andrew G. Jeffs   +4 more
doaj   +1 more source

Multi-Year Mortality Due to Staphylococcal Arthritis and Osteomyelitis with Sandspur-Associated Injury in Juvenile Black Skimmers (Rynchops niger) at Nesting Colonies in Southwest Florida, USA

Veterinary Sciences
The black skimmer (Rynchops niger) is a state-threatened, colonially nesting seabird in Florida, USA. Conservation threats include habitat alteration, human disturbances, severe weather, and predation.
Nicole M. Nemeth, Janell M. Brush, W. Andrew Cox, Rebecca Hardman, Brittany Piersma, Alexandra Troiano, Heather W. Barron, Melanie R. Kunkel, Chloe C. Goodwin, Alisia A. W. Weyna, Amy S. McKinney, Xuan Hui Teo, Rebecca Radisic, Lisa A. Shender, Susan Sanchez, Michelle van Deventer   +15 more
doaj   +1 more source

Accounting for animal movement during aerial imaging surveys

Remote Sensing in Ecology and Conservation, EarlyView.
Animals are not stationary during aerial surveys; if their movements are related to the movement of the aerial platform, then bias can be introduced into subsequent population count estimates. We sought to establish a framework for assessing the impacts of animal movement on count error and platform bias by comparing aggregated counts and relative ...
Rowan L. Converse, Christopher D. Lippitt, Steven E. Sesnie, David R. Stewart, Matthew J. Butler, Grant M. Harris   +5 more
wiley   +1 more source

Tracking Wintertime Behaviour of Emperor Penguins Using High‐Resolution Synthetic Aperture Radar Imagery

Remote Sensing in Ecology and Conservation, EarlyView.
Using 25–30 cm Umbra synthetic aperture radar (SAR) imagery combined with ground validation of our observations, we introduce a method to track the phenology of emperor penguins during the Antarctic winter. We successfully identified events in the breeding cycle, which were previously impossible to observe during the complete darkness of Antarctic ...
Michelle LaRue, Daniel Price, Sarah Wiki‐Bennett, Charles K. Lee, B. Jack Pan, Kyle McCloud, Heather Cruickshank, Alex Ponniah, Daniel Zitterbart, Alexander Winterl, Céline Le Bohec, Rose Foster‐Dyer, Peter Fretwell   +12 more
wiley   +1 more source

Competition and Facilitation Influence Central Place Foraging Ecology in a Colonial Marine Predator

Ecology and Evolution
Coloniality is strongly shaped by aspects of social foraging behaviour. For example, colonies may be important sources of information, while food competition may increase foraging efforts and limit colony size.
Liam P. Langley, Sam L. Cox, Samantha C. Patrick, Stephen C. Votier   +3 more
doaj   +1 more source

Seabird predation effects and population viability analysis indicate the urgent need for rat eradication from Europa Island, western Indian Ocean

Avian Conservation and Ecology, 2022
Rats are among the worst invasive alien predators. They prey upon eggs, chicks, and sometimes adults of seabirds, leading to the decline of many populations. Rats have invaded 93% of the islands in the western Indian Ocean, which is an avian biodiversity
Merlene SAUNIER, Maxime Amy, Christophe Barbraud, Patrick Pinet, David Ringler, James C. Russell, Matthieu Le Corre   +6 more
doaj  

Den attendance by Arctic foxes experiencing 10 years of increasing tourism

Wildlife Biology, EarlyView.
Wildlife tourism is a growing industry, and an increasing number of people seek to observe and interact with wild animals in their natural surroundings. In Iceland, the native Arctic fox Vulpes lagopus is widespread and has been under heavy hunting pressure for centuries.
Ester Rut Unnsteinsdóttir, Borgný Katrínardóttir, Bruce J. McAdam   +2 more
wiley   +1 more source

Kittiwakes nesting on offshore oil and gas infrastructure: An emerging and under‐recorded phenomenon

Ecological Solutions and Evidence
Black‐legged kittiwake (Rissa tridactyla) populations are in decline globally, including in Britain and Ireland, which support internationally important numbers.
Richard John Delahay, Tim Hounsome, Debs L. Allbrook, Stuart Bearhop, Jamie Dunning, Anna L. Lowden, Richard Sherley, Tom Smith, George Wilkinson, Alice Marie Trevail   +9 more
doaj   +1 more source