Results 31 to 40 of about 552 (176)

Beluga whale body condition: evaluating environmental variables on beluga body condition indicators in the Tarium Niryutait MPA, Beaufort Sea

Arctic Science, 2023
The development of indicators as tools for ecosystem monitoring is a key step in the management of marine protected areas (MPAs). This study uses previously developed sex-specific body condition indices, blubber thickness, and girth, to assess temporal ...
K. MacMillan, C. Hoover, J. Iacozza, J. Peyton, L. Loseto   +4 more
doaj   +1 more source

Young Belugas Diversify Adult Beluga (Delphinapterus leucas) Behavior

Animal Behavior and Cognition, 2015
Across the animal kingdom, immature animals are characterized by their playfulness and diversity of behavior, but are their actions enriching to adult conspecifics? The purpose of this study was to assess if beluga (Delphinapterus leucas) calves influenced the behavioral repertoire of adult conspecifics, specifically with regard to play behaviors ...
Heather Hill, Sara Guarino, Shirlee Crandall, Emily Lenhart, Sarah Dietrich   +4 more
openaire   +2 more sources

An overview of genetic relationships of Canadian and adjacent populations of belugas (Delphinapterus leucas) with emphasis on Baffin Bay and Canadian eastern Arctic populations

NAMMCO Scientific Publications, 2002
Our current knowledge of the molecular genetics of High Arctic beluga (Delphinapterus leucas) populations (West Greenland, Lancaster Sound/Barrow Strait, Grise Fiord) and populations that are related (southeast Baffin, Beaufort Sea), is presented.
BGE de March, L D Maiers, M K Friesen
doaj   +1 more source

Investigating the relationship between the skin microbiome and flame retardant exposure of the endangered St. Lawrence Estuary beluga

Frontiers in Environmental Science, 2022
The endangered beluga (Delphinapterus leucas) population in the St. Lawrence Estuary (SLE) in eastern Canada, the largest estuary in the world, is declining.
Baofeng Jia, Emma Garlock, Michael J. Allison, Robert Michaud, Raymond Lo, Jessica M. Round, Caren C. Helbing, Jonathan Verreault, Fiona S. L. Brinkman   +8 more
doaj   +1 more source

Spatially explicit models of density improve estimates of Eastern Bering Sea beluga (Delphinapterus leucas) abundance and distribution from line-transect surveys [PDF]

PeerJ
We investigate spatially explicit models and ensemble modeling techniques for estimating animal abundance from line-transect survey data. Spatially explicit models are expected to be statistically more efficient, resulting in more precise abundance ...
Megan C. Ferguson, Paul B. Conn, James T. Thorson   +2 more
doaj   +2 more sources

Lung Cancer Patients Display Increased Expression of Bovine Meat and Milk Factor (BMMF) Proteins in Peritumor Alveolar Macrophages

International Journal of Cancer, EarlyView.
Plasmid‐like DNA sequences frequently found in bovine milk and serum have been proposed as infectious agents promoting indirect carcinogenesis. This multi‐omics study detected immune cells positive for these bovine meat and milk factors (BMMFs) in patients with lung cancer, with BMMF expression inversely correlated with smoking intensity.
Nives Cecere, Kristina Alikhanyan, Claudia Ernst, Lisa Häfele, Lars Feuerbach, Imke Grewe, Sumen Siqin, Karin Gunst, Gunjan Shukla, Veronika Frehtman, Claudia Tessmer, Florian Eichhorn, Michael Allgäuer, Alexander Brobeil, Ilse Hofmann, Barbara Leuchs, Marc A. Schneider, Timo Bund   +17 more
wiley   +1 more source

Visibility of St Lawrence belugas to aerial photography, estimated by direct observation

NAMMCO Scientific Publications, 2002
The depleted population of belugas (Delphinapterus leucas) inhabiting the St Lawrence estuary, Canada, was monitored by periodic photographic aerial surveys. In order to correct counts made on aerial survey film and to obtain an estimate of the true size
Michael CS Kingsley, Isabelle Gauthier
doaj   +1 more source

The T‐Cell Response Mechanism in Human Papillomavirus‐Associated Cervical Cancer and New Strategies for Immunotherapy

iNew Medicine, EarlyView.
ABSTRACT Human papillomavirus (HPV) is a double‐stranded DNA virus that infects human skin and mucosal tissues exclusively. The German scientist Harald zur Hausen was awarded the 2008 Nobel Prize in Physiology or Medicine for his discovery of the link between HPV infection and cervical cancer.
Fang Zhu, Farah Nazir, Ying Zhou, Yuhua Shang, Hongliang He, Tengchuan Jin   +5 more
wiley   +1 more source

Cementum structure in Beluga whale teeth [PDF]

Acta Biomaterialia, 2017
A large fraction of the volume of Beluga whale (Delphinapterus leucas) teeth consists of cementum, a mineralized tissue which grows throughout the life of the animal and to which the periodontal ligaments attach. Annular growth bands or growth layer groups (GLGs) form within Beluga cementum, and this study investigates GLG structure using X-ray ...
S R, Stock, L A, Finney, A, Telser, E, Maxey, S, Vogt, J S, Okasinski   +5 more
openaire   +2 more sources

Disrupting the herd: Recreational boating alters group dispersion within beluga whale herds

The Journal of Wildlife Management, EarlyView.
Recreational boating in beluga habitat remains poorly documented. Using land‐based observations in the Saguenay Fjord (Quebec, Canada), we show that increasing recreational boat numbers are associated with a higher probability of changes in beluga herd dispersion, suggesting behavioral disturbance and the need to integrate recreational boating into ...
Camille Kowalski, Angélique Dupuch, Jean‐François Sénécal, Jérôme Dupras, Clément Chion   +4 more
wiley   +1 more source