Results 51 to 60 of about 304,813 (194)

Big Bird: A global dataset of birds in drone imagery annotated to species level

Remote Sensing in Ecology and Conservation, EarlyView.
Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson, Tatsuya Amano, Thomas Bregnballe, Alejandro Corregidor‐Castro, Roxane Francis, Diego Gallego‐García, Jarrod C. Hodgson, Landon R. Jones, César R. Luque‐Fernández, Dominik Marchowski, John McEvoy, Ann E. McKellar, W. Chris Oosthuizen, Christian Pfeifer, Martin Renner, José Hernán Sarasola, Mateo Sokač, Roberto Valle, Adam Zbyryt, Richard A. Fuller   +19 more
wiley   +1 more source

Spatial ecology of endangered roseate terns and foraging habitat suitability around a colony in the western North Atlantic

Endangered Species Research, 2021
Predicting habitat suitability and understanding habitat utilization are important to inform and orient conservation and management decisions for the recovery of endangered species.
I Pratte, RA Ronconi, SR Craik, J McKnight   +3 more
doaj   +1 more source

Using a live‐streaming webcam to assess the behavioural responses of waterbirds to changes in the density of swans Cygnus spp.

Wildlife Biology, EarlyView.
Wildlife research has benefitted from the development of new methods that allow data to be collected remotely, with less disturbance to focal animals. The proliferation of livestreaming webcams, for example, those used by nature reserves for public engagement purposes, have offered new possibilities for the study of wildlife behaviour.
Kevin A. Wood, Grace Clarke, Paul E. Rose   +2 more
wiley   +1 more source

Breeding Biology of an Interior Least Tern (Sterna Antillarum Athalassos) Colony in Childress County of North Texas [PDF]

, 2003
This study documented nest success, nest initiation chronology and nest site selection for interior least terns (Sterna antillarum athalassos) along the Prairie Dog Town Fork of the Red River in Childress County, Texas during 1998. Terns experienced a 65%
Conway, Warren C., Ray, James D., Smith, Loren M.   +2 more
core   +1 more source

Hot and crispy : CRISPR-Cas systems in the hyperthermophile Sulfolobus solfataricus [PDF]

, 2013
The CRISPR (clustered regularly interspaced short palindromic repeats) and Cas (CRISPR-associated) genes are widely spread in bacteria and archaea, representing an intracellular defence system against invading viruses and plasmids.
White, Malcolm F., Zhang, Jing
core   +2 more sources

Nest-site habitat partitioning by Arctic, Common, and Roseate terns

Avian Conservation and Ecology
When closely related species that share aspects of their habitat niches nest in sympatry, selection is expected to favor species-specific differences in nest-site selection that allow birds to partition habitat. We tested habitat-partitioning theory in a
Nicholas Knutson, Ted C D'Eon, Alix A d'Entremont, Julie McKnight, Mark L Mallory, Shawn R Craik   +5 more
doaj   +1 more source

Abundance and prey capture success of Common Terns (Sterna hirundo) and Pied Kingfishers (Ceryle rudis) in relation to water clarity in south-east coastal Ghana

Avian Research, 2018
Background Water clarity may negatively influence rate of plunge diving and prey capture success of piscivorous plunge-diving birds, and therefore has implications for their conservation in polluted urban wetlands.
Lars H. Holbech, Francis Gbogbo, Timothy Khan Aikins   +2 more
doaj   +1 more source

Managing the Threat of Subsidized Predators for a Threatened Shorebird

Animal Conservation, EarlyView.
Subsidized predators—native predators that have become more common due to human activities—challenge the persistence of many at‐risk prey species and require creative solutions beyond lethal predator control. In an 8‐year study, we placed small wire cages over western snowy plover nests that allow passage of plovers, but not their predators, and ...
R. R. Swaisgood, R. L. Smith, J. G. Schuetz, T. Wooten, L. I. Vilchis   +4 more
wiley   +1 more source

Applications of concurrent access patterns in web usage mining [PDF]

, 2013
This paper builds on the original data mining and modelling research which has proposed the discovery of novel structural relation patterns, applying the approach in web usage mining.
B. Liu, J. Lu, J. Lu, J. Lu, J. Pei, J. Srivastava, R. Agrawal, R. Kohavi   +7 more
core   +1 more source

Emergence of novel highly pathogenic H5N1 avian influenza in slender-billed gulls (Chroicocephalus genei) and gull-billed terns (Gelochelidon nilotica) at Dukan Lake, Iraq

Open Veterinary Journal
Background: Highly pathogenic avian influenza (HPAI) H5N1 has continued to result in severe mortalities among wild birds globally. Aim: The present study aimed to investigate the mass mortality in Slender-billed Gulls (Chroicocephalus genei) and Gull-
Nasih Ali, Harem Mustafa, Nadia Salih, Pavel Qader, Snur Hassan, Dashty Amin   +5 more
doaj   +1 more source