Results 21 to 30 of about 8,926 (163)

Linking movement and dive data to prey distribution models: new insights in foraging behaviour and potential pitfalls of movement analyses

Movement Ecology, 2023
Background Animal movement data are regularly used to infer foraging behaviour and relationships to environmental characteristics, often to help identify critical habitat.
Katie R. N. Florko, Courtney R. Shuert, William W. L. Cheung, Steven H. Ferguson, Ian D. Jonsen, David A. S. Rosen, U. Rashid Sumaila, Travis C. Tai, David J. Yurkowski, Marie Auger-Méthé   +9 more
doaj   +1 more source

Patterns of Microbiome Variation Among Infrapopulations of Permanent Bloodsucking Parasites

Frontiers in Microbiology, 2021
While interspecific variation in microbiome composition can often be readily explained by factors such as host species identity, there is still limited knowledge of how microbiomes vary at scales lower than the species level (e.g., between individuals or
Jorge Doña, Jorge Doña, Stephany Virrueta Herrera, Tommi Nyman, Mervi Kunnasranta, Mervi Kunnasranta, Kevin P. Johnson   +6 more
doaj   +1 more source

Long-distance movements and associated diving behaviour of ringed seals (Pusa hispida) in the eastern Canadian Arctic

Arctic Science, 2021
Animal distribution and movement facilitate energy and nutrient transfer within and between regions, thus influencing ecosystem structure and function. Ringed seals (Pusa hispida (Schreber, 1775)) have been observed making sustained, extensive migrations
Wesley R. Ogloff, Steven H. Ferguson, Aaron T. Fisk, Marianne Marcoux, Nigel E. Hussey, Andrew Jaworenko, David J. Yurkowski   +6 more
doaj   +1 more source

Modeling ringed seal Pusa hispida habitat and lair emergence timing in the eastern Bering and Chukchi Seas

Endangered Species Research, 2021
Ringed seals Pusa hispida are reliant on snow and sea ice for denning, and a better understanding of ringed seal habitat selection and timing of emergence from snow dens (also called lairs) is needed to quantify and predict effects of climate change in ...
JM Lindsay, KL Laidre, PB Conn, EE Moreland, PL Boveng   +4 more
doaj   +1 more source

Qualidade do Carvão vegetal de Diospyros hispida DC., Xylopia aromática e Mouriri pusa Gardner na região Sul do Tocantins [PDF]

, 2021
The present study aimed to characterize the energetic charcoal of three natural species from forest residues in the municipality of Dueré - TO, evaluating their energetic potentials, as well as the influence of the final carbonization temperatures.
Cunha, Kerolla Morgana Oliveira
core   +1 more source

Detecting ringed seal vocalizations using deep learning [PDF]

JASA Express Letters
Ringed seals (Pusa hispida) in the Arctic face habitat loss from climate change, making monitoring critical for conservation. Passive acoustic monitoring provides essential data; however, large data volumes require automated analysis.
Karlee E. Zammit, William D. Halliday, Amalis Riera, Annika Heimrich, Mariana Barbosa, Nikoletta Diogou, Olokhaktomiut Hunters and Trappers Committee, Stephen J. Insley, Fabio Frazao, Sebastien Fabbro, Stan E. Dosso   +10 more
doaj   +1 more source

Foraging ecology of ringed seals (Pusa hispida), beluga whales (Delphinapterus leucas) and narwhals (Monodon monoceros) in the Canadian High Arctic determined by stomach content and stable isotope analysis [PDF]

Polar Research, 2015
Stomach content and stable isotope analysis (δ13C and δ15N from liver and muscle) were used to identify habitat and seasonal prey selection by ringed seals (Pusa hispida; n=21), beluga whales (Delphinapterus leucas; n=13) and narwhals (Monodon monoceros;
Jordan K. Matley, Aaron T. Fisk, Terry A. Dick   +2 more
doaj   +1 more source

Spatial variation in carbon source use and trophic position of ringed seals across a latitudinal gradient of sea ice

Ecological Indicators, 2022
Anthropogenic climate change is causing changes to the Arctic sea-ice system with implications for the magnitude and timing of Arctic pelagic and ice-associated (sympagic) primary production that influences food web interactions.
Cody G. Carlyle, James D. Roth, David J. Yurkowski, Doreen Kohlbach, Brent G. Young, Thomas A. Brown, Frank F. Riget, Rune Dietz, Steven H. Ferguson   +8 more
doaj   +1 more source

Anatomical variations in the cerebral arterial circle of the Saimaa (Pusa hispida saimensis) and Baltic ringed seals (Pusa hispida botnica)

, 2023
The intracranial arterial vascularization of the Saimaa ringed seals (Pusa hispida saimensis; Nordquist, 1899) and Baltic ringed seals (Pusa hispida botnica; Gmelin, 1788) disclosed patterns of anatomical architecture comparable to that of other pinniped
Laakkonen, Juha, Nihtilä, Heini Vivika, Jernvall, Jukka   +2 more
core   +1 more source

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