Results 51 to 60 of about 4,342 (214)
On the tusks of the narwhale [PDF]
Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of LondonAbstract The author acknowledges himself indebted to the laudable zeal of Mr. Scoresby, jun. of Whitby, for the greatest part of the information which he here lays before the Society. Although the tusk of this animal is not uncommon, its skull has very rarely been brought into this country; and hence there has been little opportunity ...
openaire +1 more source
Genetic and Ecological Divergence Between Northwest Atlantic Killer Whale Populations
Ecology and Evolution, Volume 16, Issue 5, May 2026.Killer whale (Orcinus orca) populations exhibit substantial genetic, ecological, and morphological differences across their global distribution. In this study, we use whole‐genome resequencing and compound‐specific stable isotope analysis of amino acids to show concurrent genetic and ecological differentiation in two relatively understudied killer ...
Caila E. Kucheravy +7 more
wiley +1 more source
Food and Energy Security, Volume 15, Issue 3, May/June 2026.ABSTRACT Recent advances in agricultural production and storage systems have contributed to a significant enhancement in annual wheat production and preservation, aimed at satisfying increasing consumer demands. Despite such potential developments, there are still significant post‐harvest losses in stored wheat, induced by destructive pests, grain ...
Hafiz Muhammad Bilal Yousuf +3 more
wiley +1 more source
Narwhal (Monodon monoceros) detection by infrared flukeprints from aerial survey imagery
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 +1 more source
Killer Whale (Orcinus orca) pulsed calls in the Eastern Canadian Arctic [PDF]
, 2019 Killer whales produce pulsed calls, which are used for communication. Calls are highly stereotyped and repertoires are unique to individual pods. Discrimination amongst these calls and comparison of call repertoires between pods can help determine ...
Sportelli, Jessica
core
Seasonal variability of the warm Atlantic Water layer in the vicinity of the Greenland shelf break [PDF]
, 2014 The warmest water reaching the east and west coast of Greenland is found between 200?m and 600?m. Whilst important for melting Greenland's outlet glaciers, limited winter observations of this layer prohibit determination of its seasonality.
Andrew C. Coward +15 more
core +1 more source
Molecular Ecology Resources, Volume 26, Issue 3, April 2026.ABSTRACT Genetic reference databases underpin a wide range of molecular approaches used to study cetacean biodiversity, including environmental DNA (eDNA), yet their reliability depends critically on data completeness, taxonomic accuracy, and metadata quality.
Luís Afonso +12 more
wiley +1 more source
PLoS Computational Biology, 2019 Diving behaviour of narwhals is still largely unknown. We use Hidden Markov models (HMMs) to describe the diving behaviour of a narwhal and fit the models to a three-dimensional response vector of maximum dive depth, duration of dives and post-dive ...
Manh Cuong Ngô +2 more
doaj +1 more source
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 +1 more source
Phylogenetic review of tonal sound production in whales in relation to sociality [PDF]
, 2007 Background It is widely held that in toothed whales, high frequency tonal sounds called \u27whistles\u27 evolved in association with \u27sociality\u27 because in delphinids they are used in a social context.
Laura J May-Collado +2 more
core +1 more source