Strange attractor of a narwhal (Monodon monoceros). [PDF]
PLoS Computational Biology, 2022 Detecting structures within the continuous diving behavior of marine animals is challenging, and no universal framework is available. We captured such diverse structures using chaos theory.
Evgeny A Podolskiy +1 more
doaj +6 more sources
Evidence of stereotyped contact call use in narwhal (Monodon monoceros) mother-calf communication. [PDF]
PLoS ONE, 2021 Narwhals (Monodon monoceros) are gregarious toothed whales that strictly reside in the high Arctic. They produce a broad range of signal types; however, studies of narwhal vocalizations have been mostly descriptive of the sounds available in the species'
Audra E Ames +3 more
doaj +3 more sources
Tusk anomalies in narwhals (Monodon monoceros) from Greenland
Polar Research, 2022 The elongated, spiraled tusk of male narwhals (Monodon monoceros) grows continuously throughout the life of the whale and is most likely a secondary sexual trait used in male–male hierarchical competition and possibly in female mate choice.
Eva Garde, Mads Peter Heide-Jørgensen
doaj +3 more sources
Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery [PDF]
Ecosphere, 2021 Visual and observer aerial surveys are important for monitoring wildlife populations but are subject to visibility biases where animals may go undetected.
Katie R. N. Florko +5 more
doaj +3 more sources
Skull ecomorphological variation of narwhals (Monodon monoceros, Linnaeus 1758) and belugas (Delphinapterus leucas, Pallas 1776) reveals phenotype of their hybrids. [PDF]
PLoS ONE, 2022 Narwhals and belugas are toothed whales belonging to the Monodontidae. Belugas have a circumpolar Arctic and sub-Artic distribution while narwhals are restricted to the Atlantic Arctic.
Deborah Vicari +10 more
doaj +3 more sources
Behavioural analysis of multi-year satellite telemetry data provides insight into narwhal (Monodon monoceros) winter prey selection in Baffin Bay. [PDF]
PLoS ONENarwhals (Monodon monoceros) are deep-diving Arctic cetaceans that migrate seasonally between summering and wintering grounds. The Baffin Bay population overwinters in southern Baffin Bay and Davis Strait, where they are known to forage on high-energy ...
Claire A Hornby +3 more
doaj +4 more sources
Narwhal (Monodon monoceros) associations with Greenland summer meltwater release
EcosphereClimate change is rapidly transforming the coastal margins of Greenland. At the same time, there is increasing recognition that marine‐terminating glaciers provide unique and critical habitats to ice‐associated top predators.
Kristin L. Laidre +8 more
doaj +4 more sources
Highly Directional Sonar Beam of Narwhals (Monodon monoceros) Measured with a Vertical 16 Hydrophone Array. [PDF]
PLoS ONE, 2016 Recordings of narwhal (Monodon monoceros) echolocation signals were made using a linear 16 hydrophone array in the pack ice of Baffin Bay, West Greenland in 2013 at eleven sites.
Jens C Koblitz +3 more
doaj +3 more sources
δ15N and δ13C cycles in narwhal (Monodon monoceros) embedded teeth reveal seasonal variation in ecology and/or physiology [PDF]
Royal Society Open ScienceMonitoring Arctic marine mammals in response to rapid climate change requires reliable longitudinal data. To obtain such data is challenging, but sequential measurements of stable isotopes (SI) from metabolically inert tissues like dentine allow for ...
Shu-Ting Zhao +2 more
doaj +3 more sources
Assessing the post-release effects of capture, handling and placement of satellite telemetry devices on narwhal (Monodon monoceros) movement behaviour. [PDF]
Conserv Physiol, 2021 Narwhals, iconic Arctic cetaceans, were monitored after routine capture and tagging. Using accelerometry-derived behaviour, most individuals appeared to recover within hours post-release. Some evidence suggests that handling time, sex and the presence of
Shuert CR +4 more
europepmc +2 more sources