Results 31 to 40 of about 124,439 (171)

Patterns of winter occurrence of three sympatric killer whale populations off eastern Vancouver Island, Canada, based on passive acoustic monitoring

open access: yesFrontiers in Marine Science, 2023
Understanding habitat use patterns of animal populations across space and time is fundamental to identifying ecological requirements, and informing threat mitigation and conservation strategies.
James F. Pilkington   +5 more
doaj   +1 more source

Dose-response relationships for the onset of avoidance of sonar by free-ranging killer whales [PDF]

open access: yes, 2014
The authors acknowledge the support of the MASTS pooling initiative (The Marine Alliance for Science and Technology for Scotland) in the completion of this study.
Samarra, Filipa Isabel Pereira   +21 more
core   +1 more source

FIN-PRINT a fully-automated multi-stage deep-learning-based framework for the individual recognition of killer whales

open access: yesScientific Reports, 2021
Biometric identification techniques such as photo-identification require an array of unique natural markings to identify individuals. From 1975 to present, Bigg’s killer whales have been photo-identified along the west coast of North America, resulting ...
Christian Bergler   +7 more
doaj   +1 more source

Variation in sperm whale (Physeter macrocephalus) coda vocalizations and social structure in the North Atlantic Ocean [PDF]

open access: yes, 2009
This study aimed at complementing studies of sperm whale social and vocal behaviour that were restricted to the Pacific Ocean. The characteristic multi-pulsed structure of sperm whale clicks allows for estimation of whales' size from measurements of ...
Antunes, Ricardo
core   +2 more sources

Increased presence of mammal-eating killer whales in the Salish Sea with implications for predator-prey dynamics [PDF]

open access: yesPeerJ, 2018
The inland waters of Washington State and southern British Columbia, collectively known as the Salish Sea, comprise key habitat for two regional populations of killer whales (Orcinus orca): the mammal-eating West Coast Transients and the endangered fish ...
Monika W. Shields   +3 more
doaj   +2 more sources

Changes in dive behaviour during naval sonar exposure in killer whales, long-finned pilot whales, and sperm whales. [PDF]

open access: yes, 2012
Anthropogenic underwater sound in the environment might potentially affect the behavior of marine mammals enough to have an impact on their reproduction and survival.
Tyack, P.L.   +31 more
core   +2 more sources

Acoustic and foraging behavior of a Baird’s beaked whale, Berardius bairdii, exposed to simulated sonar [PDF]

open access: yes, 2014
Research was supported by the US Navy Chief of Naval Operations, Environmental Readiness Program, the Office of Naval Research, the Naval Postgraduate School, and the National Research Council.Beaked whales are hypothesized to be particularly sensitive ...
A. K. Stimpert   +26 more
core   +1 more source

Prey of killer whales (Orcinus orca) in Iceland.

open access: yesPLoS ONE, 2018
Killer whales have a cosmopolitan distribution and as a species are generalists, feeding on a variety of prey. However, local populations tend to specialise on specific prey types.
Filipa I P Samarra   +9 more
doaj   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +1 more source

Blackfish: how captive killer whale documentary ended SeaWorld's orca breeding programme [PDF]

open access: yes, 2021
First paragraph: After its premiere at the Sundance Film Festival in January 2013, the documentary Blackfish reached nearly 21 million viewers within its first month of airing on CNN. The film tells the bleak story of Tilikum, a performing orca at the US
Veríssimo, Diogo, Thomas-Walters, Laura
core  

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