Results 31 to 40 of about 9,157 (204)

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+1 more source

Morphology of the esophageal mucosa in long-eared owl and eurasian jay

open access: diamondScientific Messenger of LNU of Veterinary Medicine and Biotechnologies, 2018
The morphology of the esophageal mucosa in long-eared owl (Asio otus) and Eurasian jay (Garrulus glandarius) has been studied. Samples with exception of the region of the esophageal tonsil were obtained from 3 adult birds of each species. They were studied by light microscopy using classical methods of morphological research.
N. Dyshlyuk
openalex   +3 more sources

Evidence suggesting that desire-state attribution may govern food sharing in Eurasian jays [PDF]

open access: bronzeProceedings of the National Academy of Sciences, 2013
State-attribution is the ability to ascribe to others an internal life like one’s own and to understand that internal, psychological states such as desire, hope, belief, and knowledge underlie others’ actions. Despite extensive research, comparative studies struggle to adequately integrate key factors of state-attribution that have been identified by ...
Ljerka Ostojić   +3 more
openalex   +4 more sources

Current desires of conspecific observers affect cache-protection strategies in California scrub-jays and Eurasian jays [PDF]

open access: yesCurrent Biology, 2017
Many corvid species accurately remember the locations where they have seen others cache food, allowing them to pilfer these caches efficiently once the cachers have left the scene [1] . To protect their caches, corvids employ a suite of different cache-protection strategies that limit the observers’ visual or acoustic access to the cache site [2,3 ...
Ostojić, Ljerka   +6 more
openaire   +8 more sources

Caching at a distance: a cache protection strategy in Eurasian jays [PDF]

open access: yesAnimal Cognition, 2016
A fundamental question about the complexity of corvid social cognition is whether behaviours exhibited when caching in front of potential pilferers represent specific attempts to prevent cache loss (cache protection hypothesis) or whether they are by-products of other behaviours (by-product hypothesis).
Legg, Edward W   +2 more
openaire   +4 more sources

Long-Term Winter Population Trends of Corvids in Relation to Urbanization and Climate at Northern Latitudes

open access: yesAnimals, 2022
Corvids (crows, magpies, jays) live in a close association with humans, and therefore knowledge about their population status and changes will be an essential part of monitoring the quality of urban environments.
Jukka Jokimäki   +2 more
doaj   +1 more source

Autumn irruptions of Eurasian Jay (Garrulus glandarius) in Norway in relation to acorn production and weather

open access: diamondOrnis Fennica, 2017
In Scandinavia, the Eurasian Jay (Garrulus glandarius) is a resident forest-dwelling species, which in some years show eruptivemovements in the autumn. Such irruptions seem to be related to the variation in seed crops of oaks (Quercus spp.).When there has been a high seed crop, termed mast, Jays use hoarded acorns not only during winter, but also as ...
Vidar Selås
openalex   +4 more sources

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