Results 71 to 80 of about 13,035 (174)

Group‐Specific Variation in Heterodyne Frequencies of Biphonic Calls in Resident (R‐Type) Killer Whales Orcinus orca ater

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Biphonation—the simultaneous production of two independent fundamental frequencies within a single vocalization—is a prominent feature of killer whale calls, yet the factors influencing the presence and intensity of heterodyne frequencies, which arise from interactions between these fundamentals, remain poorly understood. We analyzed long‐term
Vera I. Fedorova, Ilya A. Volodin, Tatiana V. Ivkovich, Elena V. Volodina, Erich Hoyt, Olga A. Filatova   +5 more
wiley   +1 more source

Mind the Gap: Performance Limits of Automated Contour Extraction Methods for Individual Monitoring of Bottlenose Dolphins

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Reliable extraction of dolphin whistle contours is fundamental for scalable analyses of vocal identity, repertoire structure, and individual‐based acoustic monitoring. We evaluated four algorithms for fundamental frequency estimation of common bottlenose dolphin (Tursiops truncatus) whistles, leveraging a benchmark dataset of annotated ...
Saskia C. Tyarks, Matthew D. Hyer, Frants H. Jensen   +2 more
wiley   +1 more source

Repertório acústico do boto-da-tainha no contexto da pesca cooperativa com pescadores artesanais em Laguna, Sul do Brasil [PDF]

, 2012
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.Conhecido no sul do Brasil como boto-da-tainha, Tursiops truncatus apresenta distribuição cosmopolita e é amplamente estudado.
Romeu, Bianca
core  

Characterizing Habitat Suitability of Long‐Finned Pilot Whales in a Key Conservation Region of the Southern Iberian Peninsula Using Satellite Tracking Data

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The waters surrounding the southern Iberian Peninsula are a key conservation area for the long‐finned pilot whale (Globicephala melas melas), particularly in the pelagic regions of the Strait of Gibraltar, the Alboran Sea, and the Gulf of Vera, where upwelling, complex bathymetry and frontal dynamics enhance productivity and prey availability,
Jazel Ouled‐Cheikh, Edgard Ballesta, David March, Pedro García, Philippe Verborgh, Renaud de Stephanis, Joan Giménez   +6 more
wiley   +1 more source

Morfologia do aparato hióide de algumas espécies de odontocetos do sul do Brasil

Biotemas, 2009
O aparato hióide dos odontocetos serve como principal ponto de fixação de músculos e ligamentos que subsidiam a respiração, a produção de sons e a alimentação.
Dan Jacobs Pretto, Gabriela Oliveira, Maurício Eduardo Graipel, Paulo César Simões-Lopes   +3 more
doaj   +1 more source

Density and Abundance of Cetaceans in the Eastern Tropical Pacific Based on a Spatial/Temporal Analysis of 1986–2006 Line‐Transect Surveys

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The abundance of cetaceans in the eastern tropical Pacific Ocean (ETP) is estimated using spatial/temporal density modeling and conventional line‐transect approaches. Line‐transect data are analyzed from 10 ship‐based visual sighting surveys from 1986 to 2006 that include 281,000 km of survey effort in a 19.4 million km2 study area.
Jay Barlow, Lisa T. Ballance, Eric M. Keen   +2 more
wiley   +1 more source

Toxicant exposure, population genetics, and trophic associations of bottlenose dolphins (Tursiops aduncus) in the Swan River [PDF]

, 2011
Although Indo-Pacific bottlenose dolphins (Tursiops aduncus) are a valued component of the Swan-Canning Estuary and the Swan Canning Riverpark, little is known about the health and ecology of the small community of dolphins inhabiting the estuary.
Daniel, C., McElligott, D., Holyoake, C., Stephens, N., Smith, H., Finn, H., Allen, S., Linke, T., Bejder, L.   +8 more
core  

Nursing Behavior of Bottlenose Dolphin (Tursiops truncatus) Calves from 1990-2014 at Brookfield Zoo Chicago, USA [PDF]

Animal Behavior and Cognition
While the common bottlenose dolphin (Tursiops truncatus) population under managed care in North American zoos and aquariums is self-sustaining, understanding normal nursing behavior can help management make informed care decisions for neonates and future
Margaret Ramont, Johanna Sholar, Rita Stacey, Mark Gonka, Lance J. Miller   +4 more
doaj   +1 more source

Modified Endoscopic Removal of Foreign Objects from the Forestomach of a Common Bottlenose Dolphin (Tursiops truncatus) [PDF]

Pakistan Veterinary Journal, 2013
We report on the removal of foreign objects from the forestomach of a 200 kg adult male common bottlenose dolphin (Tursiops truncatus) in the Seoul zoo using a modified stainless steel hook and flexible wire snare attached to a gastrointestinal ...
Kyung-Yeon Eo, Yong-Gu Yeo and Oh-Deog Kwon*
doaj  

Behaviourally specific preferred associations in bottlenose dolphins, Tursiops spp. [PDF]

, 2005
We investigated association patterns of 52 photographically identified, free-ranging bottlenose dolphins (Tursiops spp. Gervais, 1855) across four behavioural states (rest, travel, social, and foraging/feeding) to investigate how behavioural state ...
Whitehead, H., Mann, J., J Mann, R C Connor, Gero, S., H Whitehead, S Gero, Bejder, L., Connor, R.C., L Bejder   +9 more
core   +1 more source