Results 61 to 70 of about 131,638 (138)

Comparative Health Assessments of Alaskan Ice Seals

Frontiers in Veterinary Science, 2019
Bearded (Erignathus barbatus), ringed (Pusa hispida), spotted (Phoca largha), and ribbon (Histriophoca fasciata) seals rely on seasonal sea-ice in Arctic and sub-Arctic regions.
Caroline E. C. Goertz, Colleen Reichmuth, Colleen Reichmuth, Nicole M. Thometz, Nicole M. Thometz, Heather Ziel, Peter Boveng   +6 more
doaj   +1 more source

The ecological and behavioral significance of short-term food caching in polar bears (Ursus maritimus)

Arctic Science, 2020
The paucity of observations of wild polar bears (Ursus maritimus) caching of food (including hoarding, i.e., burying and remaining with a kill for up to a few days) has led to the conclusion that such behavior does not occur or is negligible in this ...
Ian Stirling, Kristin L. Laidre, Andrew E. Derocher, Rinie Van Meurs   +3 more
doaj   +1 more source

Divergent vigilance strategies in sympatric seals facing shared predation risk

FACETS
Predator–prey dynamics shape animal behaviour and distribution, and vary across space and time. As Arctic ecosystems change, long-standing ecological relationships may shift, yet species’ behavioural responses to changing predation pressure remain poorly
Katie R.N. Florko, C-Jae C. Breiter, Stephen D. Petersen   +2 more
doaj   +1 more source

Linking PVA models into metamodels to explore impacts of declining sea ice on ice-dependent species in the Arctic: the ringed seal, bearded seal, polar bear complex

Frontiers in Conservation Science
Arctic ecosystems are especially vulnerable to the impacts of climate change because of the limit to possible northward shifts for species dependent on land or continental shelf and because the rate of warming of the region has been 2-4 x the global ...
Robert C. Lacy, Kit M. Kovacs, Christian Lydersen, Jon Aars   +3 more
doaj   +1 more source

Haul-out behaviour, site fidelity and vigilance of common seals (Phoca vitulina) and grey seals (Halichoerus grypus) in the tees Estuary [PDF]

, 1994
The project was carried out from the beginning of May to the beginning of July 1994, at Seal Sands, in the Tees estuary. The study aimed to examine (i) ecological and (ii) behavioural aspects of two species of seals, common seals (Phoca vitulina) and ...
Gaspari, Stefania
core  

Instance segmentation of Ladoga ringed seals

, 2020
The wildlife photo-identification is an important issue today since it allows to identify and to track animals. It helps scientists to monitor the endangered species, although it is difficult to explore all the image volumes.
Lushpanov, Andrei
core   +1 more source

Analysis of population structure and genetic diversity in low-variance Saimaa ringed seals using low-coverage whole-genome sequence data. [PDF]

STAR Protoc, 2023
Olkkonen E, Löytynoja A.
europepmc   +1 more source

Spring distribution of ringed seals (Pusa hispida) in Eclipse Sound and Milne Inlet, Nunavut: implications for potential ice-breaking activities

Arctic Science, 2019
Resource development in Arctic waters is proceeding rapidly leading to increased interactions with Arctic wildlife. As sea ice extent decreases, the demand for shipping and ice-breaking operations will expand into winter and spring with greater impact on
David J. Yurkowski, Brent G. Young, J. Blair Dunn, Steven H. Ferguson   +3 more
doaj   +1 more source

Characterization of Acoustic Emissions from Mechanical Seals for Fault Detection [PDF]

, 2014
The application of high-frequency Acoustic Emissions (AE) for mechanical seals diagnosis is gaining acceptance as a useful complimentary tool. This paper investigates the AE characteristics of mechanical seals under different rotational speed and fluid ...
Gu, Fengshou, Ball, Andrew, Towsyfyan, Hossein, Hassin, Osama   +3 more
core   +1 more source

Number of Primordial Follicles in Juvenile Ringed Seals (Pusa hispida) from the Gulf of Bothnia and West Greenland. [PDF]

Animals (Basel), 2022
Schmidt B, Hollenbach J, Mühlfeld C, Pfarrer C, Persson S, Kesselring T, Sonne C, Rigét F, Dietz R, Siebert U.   +9 more
europepmc   +1 more source