The mixed blessing of echolocation: differences in sonar use by fish-eating and mammal-eating killer whales

Barrett‐Lennard, Lance G.; Ford, John K. B.; Heise, Kathy

doi:10.1006/anbe.1996.0059

Cited by 257 publications

(228 citation statements)

References 37 publications

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“…While bottlenose dolphins are used as model organisms for echolocation research, the ability to use echolocation for feeding and navigation is seen in other mammals of the order Cetacea, including various species of toothed whales (Barrett-Lennard et al, 1996;Simonis et al, 2012;Johnson et al, 2004). As in dolphins, toothed whales have two pairs of phonic lips capable of producing vocalizations (Cranford et al, 1996).…”

Section: Echolocationmentioning

confidence: 99%

Somatosensation, Echolocation, and Underwater Sniffing: Adaptations Allow Mammals Without Traditional Olfactory Capabilities to Forage for Food Underwater

et al. 2013

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Section: Echolocationmentioning

confidence: 99%

Somatosensation, Echolocation, and Underwater Sniffing: Adaptations Allow Mammals Without Traditional Olfactory Capabilities to Forage for Food Underwater

et al. 2013

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“…Groups of this species generally occur in small pods, usually with less than 40 individuals (Dahlheim & Heyning 1999), and resident pods are typically larger than transient pods (Bigg et al 1987;Morton 1990;Baird 1994). Residents and transients show differences in acoustics, morphology, pigmentation patterns, and genetics (Barrett-Lennard et al 1996;Ford et al 1998;Baird 2000). Besides significant differences, these populations are well known to live sympatrically (Table II).…”

Section: Transient and Resident Killer Whalesmentioning

confidence: 99%

Dolphin sympatric ecology

Bearzi

2005

Marine Biology Research

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Interspecific associations between two or more species of the family Delphinidae have been reported by many scientists, but the sympatric ecology of such dolphin associations has not been studied in great detail. A few field investigations have been conducted on this subject in different parts of the world on species such as bottlenose dolphins (Tursiops spp.), short-beaked common dolphins (Delphinus delphis ), and killer whales (Orcinus orca ). Sympatric dolphins seem to use different strategies to co-exist when resources appear to be limited, including dietary divergence (different prey preference, slightly diverse diet, different feeding time) and/or different habitat use (shallow versus deep waters, flat areas versus submarine canyons and escarpments, different travel routes). This paper presents a review of some well-studied dolphin species found in sympatry and discusses the nature of habitat and resource partitioning as well as studies on aggressive behaviour displayed by species living in the same habitat.

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“…Killer whale echolocation clicks and pulsed calls have distinct characteristics, which together allow for the discrimination to species level (Au et al, 2004;Barrett-Lennard, 1996). North Pacific killer whales are known to produce whistles from 1-18 kHz (Thomsen et al, 2001;Ford, 1989).…”

Section: Introductionmentioning

confidence: 99%

“…Both offshore killer whales and residents have been shown to have similar echolocation and communication behavior while foraging (Dahlheim et al, 2008). Mammal-eating transient killer whales produce clicks and whistles infrequently, likely a stealth tactic as a result of their prey's ability to detect these sounds (Barrett-Lennard, 1996).…”

Section: Introductionmentioning

confidence: 99%

High-frequency modulated signals of killer whales (Orcinus orca) in the North Pacific

Simonis¹,

Baumann‐Pickering²,

Oleson³

et al. 2012

The Journal of the Acoustical Society of America

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Killer whales in the North Pacific, similar to Atlantic populations, produce high-frequency modulated signals, based on acoustic recordings from ship-based hydrophone arrays and autonomous recorders at multiple locations. The median peak frequency of these signals ranged from 19.6–36.1 kHz and median duration ranged from 50–163 ms. Source levels were 185–193 dB peak-to-peak re: 1 μPa at 1 m. These uniform, repetitive, down-swept signals are similar to bat echolocation signals and possibly could have echolocation functionality. A large geographic range of occurrence suggests that different killer whale ecotypes may utilize these signals.

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The mixed blessing of echolocation: differences in sonar use by fish-eating and mammal-eating killer whales

Cited by 257 publications

References 37 publications

Somatosensation, Echolocation, and Underwater Sniffing: Adaptations Allow Mammals Without Traditional Olfactory Capabilities to Forage for Food Underwater

Somatosensation, Echolocation, and Underwater Sniffing: Adaptations Allow Mammals Without Traditional Olfactory Capabilities to Forage for Food Underwater

Dolphin sympatric ecology

High-frequency modulated signals of killer whales (Orcinus orca) in the North Pacific

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