Pilot whales
Deep diving pilot whales make cheap, but powerful, echolocation clicks with 50 µL of air
... Compared to far-field clicks, clicks recorded while tags were attached to pilot whales had greatly extended durations. Inspection of spectrograms indicated that this was due to a set of slow-decaying ...
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Breathing patterns indicate cost of exercise during diving and response to experimental sound exposures in long finned pilot whales
... long-finned pilot whales (Globicephela ...that pilot whales increased their BR in the 5–10 min period prior to, and immediately following, dives that exceeded 31 m ...
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High diving metabolic rate indicated by high speed transit to depth in negatively buoyant long finned pilot whales
... toothed whales (Fig. 4). The cruising speed of sperm whales, beaked whales and bottlenose whales was similar to the optimal swim speed expected from their body mass, indicating that their ...
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Effects of a scientific echo sounder on the behavior of short finned pilot whales (Globicephala macrorhynchus)
... Keywords: Echo sounder, Pilot whales, Behavioral Response, hidden Markov model, GEE... Increasing levels of anthropogenic noise in the marine environment represent a significant challeng[r] ...
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Vocal foragers and silent crowds : context dependent vocal variation in Northeast Atlantic long finned pilot whales
... the whales rely on sound to find ...periods, whales were more silent when they were in larger, more tightly spaced groups, which is consistent with a functional relief from mediating group cohesion ...
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Comparative feeding kinematics and performance of odontocetes: belugas, Pacific white sided dolphins and long finned pilot whales
... generation, pilot whales in this study relied more heavily on ram than ...occluded, pilot whales were the least able to create a circular anterior mouth aperture, which may influence their ...
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Disturbance specific social responses in long finned pilot whales, Globicephala melas
... long-finned pilot whales to killer whale sound playbacks and two anthropogenic sources of disturbance: tagging effort and naval sonar ...whereas pilot whales increased surface resting during ...
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Changes in dive behaviour during naval sonar exposure in killer whales, long finned pilot whales, and sperm whales
... Killer whales 144a and 144b did not resume deep foraging dives after the first LFAS exposure, and the observed lack of response to the sec- ond exposure may therefore be influenced by the animals already being in ...
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An analysis of pilot whale vocalization activity using hidden Markov models
... toothed whales, such as long-finned pilot whales (Globicephala melas), have a complex communi- cation system: individuals typically are highly vocal across the behavioral spectrum and produce a wide ...
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Determining cetacean cephalopod trophic interactions : an isotope approach
... in pilot whales may be secondary ...of pilot whales in concert with their corresponding myctophid prey may explain the resulting fatty acid myctophid signature found by Walters ...of ...
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Diverse foraging strategies by a marine top predator : sperm whales exploit pelagic and demersal habitats in the Kaikōura submarine canyon
... sperm whales are Onychoteuthid squid, and predominantly the warty squid Onykia ingens (formerly known as Moroteuthis ingens) (Gaskin & Cawthorn ...sperm whales, and a likely association of pelagic prey ...
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Distribution, social structure and habitat use of short finned pilot whale, Globicephala macrorhynchus, in the Canary Islands
... of pilot whales (long-finned pilot whales in the Strait of Gibraltar by de Stephanis et ...short-finned pilot whales off Hawaii islands by Mahaffy ...
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Ecological niches of three teuthophageous odontocetes in the northwestern Mediterranean Sea
... sperm whales, pilot whales and Risso’s dolphins prey exclusively or preferentially on ...the pilot whale has the most oceanic habitat (2500 m mean depth) mainly located in the central Ligurian ...
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Reproductive Conflict and the Evolution of Menopause in Killer Whales
... killer whales (Orcinus orca), and short-finned pilot whales (Globicephala macrorhynchus) have predisposed these species to evolve early reproductive cessa- tion in response to intergenerational ...
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The effects of sound propagation and avoidance behaviour on naval sonar levels received by cetaceans
... killer whales (Orcinus orca), long-finned pilot whales (Globicephala melas) and sperm whales (Physeter macrocephalus) during the 3S-06, 3S-08 and 3S-09 research cruises in Norwegian waters ...
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Channel Estimation and Optimization for Pilot Design in MIMO OFDM Systems
... side. Pilot symbol aided channel estimation must be used to track the variation of the ...receiver. Pilot symbols facilitate channel estimation , they reduce the transmit energy for data symbols per OFDM ...
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The Swimming of Whales and a Discussion of Gray's Paradox
... Gray was inclined to resolve the paradox by suggesting that although the flow round a rigid body of the size and speed of a small whale was turbulent, that round and actively swimming wh[r] ...
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Counting whales in a challenging, changing environment
... of whales inside the sea ...of whales available to be counted by traditional shipboard ...between whales and the dynamic, changing sea ice requires reexamination of the power to detect trends in ...
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The biology of South African Bryde's whales
... Bryde’s whales than for larger, longer lived baleen whales for which survival rates are known ...toothed whales); a shortage of food for even one or two days can be catastrophic to their survival ...
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Dwarf minke whales in the northern Great Barrier Reef and implications for the sustainable management of the swim-with whales industry
... fewer whales could be identified from r identification success are that passengers may have spend only a small proportion of the interaction in the water ...
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