Results 51 to 60 of about 9,039 (182)

Killer Whales in the Central Tropical Pacific: Occurrence, Resightings, Morphology, and Acoustics

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Compared to their well‐studied coastal temperate counterparts, killer whales (Orcinus orca) in tropical‐subtropical and oceanic areas are under‐documented. We used sighting, photo‐identification, and acoustic data of killer whales in the central tropical Pacific (CTP), collected from multiple platforms between 2002 and 2023, to assess their ...
Marie C. Hill, Sabre D. Mahaffy, Jennifer L. K. McCullough, Alaina Harmon, Robin W. Baird   +4 more
wiley   +1 more source

Harbor Porpoise and Beluga Whale Habitat Use in the Saguenay‐St. Lawrence Marine Park (Canada) Revealed by a Combination of Visual and Acoustic Survey

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Studying habitat use of cetaceans that spend most of their lives underwater poses challenges, prompting the use of complementary methods. Non‐invasive methods, land‐based surveys (LBS) and passive acoustic monitoring (PAM), were used to characterize occurrence patterns of beluga whales, harbor porpoises, and vessels in the Saguenay–St ...
Coralie Bernier‐Breton, Cristiane C. A. Martins, Gesche Winkler, Pierre Mercure‐Boissonnault, Léna Velé, Pierre Cauchy   +5 more
wiley   +1 more source

Effective beam pattern of the Blainville's beaked whale (Mesoplodon densirostris) and implications for passive acoustic monitoring

, 2013
This work was funded by two partners under the National Oceanographic Partnership Program: the Ocean Acoustics Program of the U.S. National Marine Fisheries Service, Office of Protected Resources, and the International Association of Oil and Gas ...
Johnson, Mark, David Moretti, Susan Jarvis, Peter Tyack, Moretti, David, Shaffer, Jessica Ward, Jessica Ward Shaffer, Jarvis, Susan, Tyack, Peter, Mark Johnson   +9 more
core   +1 more source

Echolocation and passive listening by foraging mouse-eared bats Myotis myotis and M. blythii [PDF]

, 2007
The two sibling mouse-eared bats, Myotis myotis and M. blythii, cope with similar orientation tasks, but separate their trophic niche by hunting in species-specific foraging microhabitats. Previous work has shown that both species rely largely on passive
Arlettaz, Raphaël, Jones G., Arlettaz, R, Russo, Danilo, Arlettaz R., Danilo Russo, Raphaël Arlettaz, Russo, D, Gareth Jones, Jones, Gareth, Jones, G   +10 more
core   +1 more source

Occurrence and Whistle Characteristics of Small Odontocetes in Two Coastal Regions of the Sea of Japan

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT This study investigated the occurrence and whistle characteristics of small odontocetes in Wakasa Bay and Aso Bay, located in the coastal waters of the Sea of Japan, where ecological data are limited. Passive acoustic monitoring using A‐tag and SoundTrap was conducted from 2022 to 2024, with detections on 8.8% and 12.4% of monitoring days at ...
Satoko S. Kimura, Shunsuke Shizuka, Mayu I. Ogawa   +2 more
wiley   +1 more source

Instrumented transducer for study of the bat echolocation process

, 2009
Evolution has enabled the bat to echolocate with ease and efficiency, to the extent that the bats capabilities far exceed the most technologically advanced manmade systems. Such capabilities reinforce mans intrigue in the animal kingdom. In studying bats
McGuire, M., Hayward, G., Pierce, S.G., Flockhart, G.M.H.   +3 more
core  

Adaptive Acoustic Monitoring for Endangered Cook Inlet Beluga Whales in Complex Soundscapes

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Effective conservation of the endangered Cook Inlet beluga whale (Delphinapterus leucas) requires comprehensive spatiotemporal data, yet monitoring efforts remain spatially biased, underrepresenting important southern habitats. Passive acoustic monitoring (PAM) provides the necessary broad‐scale coverage, but its expansion introduces ...
Manuel Castellote, Rahul Dodhia, Daniela Ruiz, Zhongqi Miao, Pablo Arbelaez, Verena Gill, Lori Polasek, Juan M. Lavista Ferres   +7 more
wiley   +1 more source

Intraspecific variation of cochlear morphology in bowhead and beluga whales

The Anatomical Record, Volume 309, Issue 6, Page 1514-1529, June 2026.
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

Geographic Variation in Diving Behaviour and Skin Isotope Ratios of Northern Bottlenose Whales, Hyperoodon ampullatus

Ecology and Evolution, Volume 16, Issue 6, June 2026.
High‐resolution multi‐sensor tag data from northern bottlenose whale populations in the northeast and northwest Atlantic showed differences in resting and foraging time budgets and behaviour. Skin biopsy stable isotopes corroborated likely dietary differences. Variability between populations has far‐reaching relevance for ecology and conservation, with
Sascha K. Hooker, Eilidh Siegal, Tessa Plint, Laura J. Feyrer, Tomoko Narazaki, Kagari Aoki, Matt Bivins, Patrick J. O. Miller   +7 more
wiley   +1 more source

Human Echolocation [PDF]

, 2013
The use of active natural echolocation as a mobility aid for blind humans has received increased scientific and popular attention in recent years (Engber, 2006; Kreiser, 2006; NPR, 2011), in part due to a focus on several blind individuals who have ...
Teng, Santani
core