Results 31 to 40 of about 4,896 (237)

Photographic evidence of tagging impacts for two beluga whales from the Cumberland Sound and western Hudson Bay populations

Arctic Science, 2022
Beluga whale (Delphinapterus leucas (Pallas, 1776)) movements, habitat use, and diving behaviour have been studied using satellite-linked transmitters for decades.
Kasey P. Ryan, Stephen D. Petersen, Steven H. Ferguson, C-Jae C. Breiter, Cortney A. Watt   +4 more
doaj   +1 more source

Intraspecific variation of cochlear morphology in bowhead and beluga whales

The Anatomical Record, EarlyView.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

Mapping molluscan endocrinology: a systematic and critical appraisal

Biological Reviews, EarlyView.
ABSTRACT Historically, a vertebrate‐centric paradigm has framed our interpretation of molluscan endocrinology, with considerable research focusing on vertebrate‐type steroid hormones (e.g. oestrogens, testosterone). However, contradictory evidence on the occurrence of vertebrate‐type steroid hormones in molluscan tissues, and a lack of the specific ...
Konstantinos Panagiotidis, Thomas H. Miller, Olwenn V. Martin, Alice Baynes   +3 more
wiley   +1 more source

Secularism, Gender and Masculinity in Nineteenth‐Century Cremation in Europe and the USA

Gender &History, EarlyView.
ABSTRACT This essay explores, from transnational perspectives, the early history of modern cremation, which developed in the long nineteenth century with secularist connotations. I argue that the beginnings of modern cremation were shaped by bourgeois men who claimed certain identifiers for themselves in a gendering and Othering way.
Carolin Kosuch
wiley   +1 more source

Oceanographic, ecological, and socio-economic impacts of an unusual summer storm in the Mackenzie Estuary

Arctic Science, 2020
With increased warming and open water due to climate change, the frequency and intensity of storm surges is expected to increase. Although studies have shown that strong storms can negatively impact Arctic ecosystems, the impact of storms on Arctic ...
Kevin C. Scharffenberg, Dustin Whalen, Shannon A. MacPhee, Marianne Marcoux, John Iacozza, Gail Davoren, Lisa L. Loseto   +6 more
doaj   +1 more source

Integrative taxonomy supports DNA barcoding in revealing an abundant cryptic species in the United States Coastal Plain

Journal of Systematics and Evolution, EarlyView.
We present the most densely sampled phylogeny of Carex section Lupulinae to date (107 specimens) and describe herein a new cryptic species for science from the southern United States, which is locally abundant and found in well‐explored and densely populated areas. Combining DNA sequences with morphometric data obtained from 299 samples, we Demonstrate
Étienne Lacroix‐Carignan, Julian R. Starr, Robert F. C. Naczi, Eran S. Kilpatrick, Étienne Léveillé‐Bourret   +4 more
wiley   +1 more source

Estimating beluga whale abundance from space: using drones to ground‐validate VHR satellite imagery

Remote Sensing in Ecology and Conservation
Routine monitoring of cetaceans is imperative for understanding their population trends and making informed management decisions. However, the inherent nature of cetaceans and the marine ecosystems they inhabit make annual population surveys logistically
Jordan B. Stewart, Justine M. Hudson, Bryanna A. H. Sherbo, Cortney A. Watt   +3 more
doaj   +1 more source

Identifying beluga distribution in the Tarium Niryutait Marine protected area using passive acoustic monitoring

Arctic Science
Arctic estuaries are important summer habitats for beluga whales (Delphinapterus leucus (Pallas, 1776)) and many populations form seasonal aggregations at these locations.
K.C. Scharffenberg, S.A. MacPhee, X. Mouy, D. Whalen, A.J. Wright, L.L. Loseto   +5 more
doaj   +1 more source

Construction and validation of safe Clostridium botulinum Group II surrogate strain producing inactive botulinum neurotoxin type E toxoid

Scientific Reports, 2022
Botulinum neurotoxins (BoNTs), produced by the spore-forming bacterium Clostridium botulinum, cause botulism, a rare but fatal illness affecting humans and animals.
Maria B. Nowakowska, Katja Selby, Adina Przykopanski, Maren Krüger, Nadja Krez, Brigitte G. Dorner, Martin B. Dorner, Rongsheng Jin, Nigel P. Minton, Andreas Rummel, Miia Lindström   +10 more
doaj   +1 more source

Pathogen Exposure in White Whales (Delphinapterus leucas) in Svalbard, Norway

Pathogens, 2022
The Svalbard white whale (Delphinapterus leucas) population is one of the smallest in the world, making it particularly vulnerable to challenges such as climate change and pathogens.
Ingebjørg H. Nymo, Ursula Siebert, Christine Baechlein, Alexander Postel, Eva M. Breines, Christian Lydersen, Kit M. Kovacs, Morten Tryland   +7 more
doaj   +1 more source