Results 1 to 10 of about 1,855 (184)

Non-stereotypy (to species) in mysticete downsweeps [PDF]

Frontiers in Remote Sensing
The Australian EEZ provides habitat for ten species of mysticete whales seasonally supporting critical life functions ranging from feeding to breeding.
Paul Nguyen Hong Duc, Curt Jenner, Micheline Jenner   +2 more
exaly   +5 more sources

Reconstructing the diet, trophic level and migration pattern of mysticete whales based on baleen isotopic composition. [PDF]

R Soc Open Sci, 2021
Baleen from mysticete whales is a well-preserved proteinaceous material that can be used to identify migrations and feeding habits for species whose migration pathways are unknown. Analysis of δ13C and δ15N values from bulk baleen have been used to infer
Riekenberg PM, Camalich J, Svensson E, IJsseldijk LL, Brasseur SMJM, Witbaard R, Leopold MF, Rebolledo EB, Middelburg JJ, van der Meer MTJ, Sinninghe Damsté JS, Schouten S.   +11 more
europepmc   +3 more sources

Surviving a Dark Age: The Oldest Baleen-Bearing Whales (Cetacea: Chaeomysticeti) of Pacific South America (Lower Miocene, Peru). [PDF]

Life (Basel)
The evolution of baleen whales (Mysticeti) comprises two main phases, namely, (i) a Paleogene phase, which saw the diversification of stem lineages, and (ii) a Neogene phase, dominated by modern-looking, toothless, baleen-bearing forms in the ...
Nobile F, Lambert O, Bianucci G, Amson E, Bosselaers M, Bosio G, Pellegrino L, Malinverno E, Di Celma C, Urbina M, Collareta A.   +10 more
europepmc   +2 more sources

Long-Term Fluctuations in Cetacean Occurrence Derived From Whale-Watching Platforms Off Southwest Gran Canaria: Evaluating Their Potential as an Ecological Indicator. [PDF]

Ecol Evol
Using an 18‐year dataset of whale‐watching observations from Gran Canaria (Canary Islands), we analysed long‐term temporal dynamics of cetacean communities in the subtropical Atlantic. Standardised sightings per unit effort (SPUE) revealed strong seasonal patterns, multi‐year fluctuations and species‐specific responses to environmental variability ...
Herrera I, Ramos AG, Rodríguez-Santana Á, Haroun R.   +3 more
europepmc   +2 more sources

Prolonged baleen hormone cycles suggest atypical reproductive endocrinology of female bowhead whales. [PDF]

R Soc Open Sci, 2023
Serial measurements of hormone concentrations along baleen plates allow for reconstructions of mysticete whale reproductive histories. We assessed gestation and calving interval in bowhead whales (Balaena mysticetus) by measuring progesterone, oestradiol,
Lysiak NSJ, Ferguson SH, Hornby CA, Heide-Jørgensen MP, Matthews CJD.   +4 more
europepmc   +2 more sources

Intraspecific variation of cochlear morphology in bowhead and beluga whales. [PDF]

Anat Rec (Hoboken)
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 ...
Peacock J, Thewissen JGM.
europepmc   +2 more sources

Experimental observation of gray whale skull vibrations amplified in the bony hearing complex. [PDF]

Sci Rep
Mysticete whales have bilateral bony ear complexes (tympanoperiotic complexes) that amplify low frequency vibrations in proximity to their vocalization ranges.
Morris MA, Krysl P, Hildebrand JA, Cranford TW.   +3 more
europepmc   +2 more sources

Validation of a computational model of bone conduction sound reception in mysticetes. [PDF]

PLoS One
Computational models serve as useful complements to physical experiments, but they require validation to build confidence in their applicability. This study outlines the validation of biomechanical models for mysticete sound reception, specifically using
Krysl P, Morris MA, Hildebrand JA, Cranford TW.   +3 more
europepmc   +2 more sources

Humpback whale masked hearing thresholds in noise measured with modified behavioral observation audiometry. [PDF]

Commun Biol
Audiograms are available for multiple species of odontocetes (toothed whales). However, there are no empirically measured audiograms for any mysticete (baleen whale) meaning their hearing sensitivity is inferred.
Dunlop RA, Noad MJ, Houser DS.
europepmc   +2 more sources

The Humpback's new Songs: Diverse and Convergent Evidence Against Vocal Culture via Copying in Humpback Whales [PDF]

Animal Behavior and Cognition, 2022
Singing humpback whales constantly modify their songs over hours, days, months, and years, throughout their adult lives. Intriguingly, humpbacks appear to vary songs in concert, with most singers in a population producing similar songs at any given time.
Eduardo Mercado
doaj   +1 more source