Interaction between killer whales (Orcinus orca) and hammerhead sharks (Sphyrna sp.) in Galápagos waters
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چکیده
منابع مشابه
Killer whales (Orcinus orca) produce ultrasonic whistles.
This study reports that killer whales, the largest dolphin, produce whistles with the highest fundamental frequencies ever reported in a delphinid. Using wide-band acoustic sampling from both animal-attached (Dtag) and remotely deployed hydrophone arrays, ultrasonic whistles were detected in three Northeast Atlantic populations but not in two Northeast Pacific populations. These results are inc...
متن کاملWhistle sequences in wild killer whales (Orcinus orca).
Combining different stereotyped vocal signals into specific sequences increases the range of information that can be transferred between individuals. The temporal emission pattern and the behavioral context of vocal sequences have been described in detail for a variety of birds and mammals. Yet, in cetaceans, the study of vocal sequences is just in its infancy. Here, we provide a detailed analy...
متن کاملFirst longitudinal study of seal-feeding killer whales (Orcinus orca) in Norwegian coastal waters
Killer whales (Orcinus orca) have been documented preying on either fish or marine mammals in several regions, suggesting that this odontocete species has the ability to specialize on different types of prey. Off Norway, killer whales have been shown to rely on the Atlantic herring (Clupea harengus) as a main prey resource. Infrequent observations have revealed seals as an additional component ...
متن کاملOrcinus orca – Killer Whale
Taxonomic notes: Orcinus orca is currently considered a single, cosmopolitan species, however many populations (including some which occur sympatrically) are ecologically, genetically and morphologically distinct (Rice 1998; Ford 2009). Despite such distinction, the global genetic diversity of the species appears low at both mitochondrial and nuclear DNA markers (Hoelzel et al. 2002; Morin et a...
متن کاملThe Relationship between Vessel Traffic and Noise Levels Received by Killer Whales (Orcinus orca)
Whale watching has become increasingly popular as an ecotourism activity around the globe and is beneficial for environmental education and local economies. Southern Resident killer whales (Orcinus orca) comprise an endangered population that is frequently observed by a large whale watching fleet in the inland waters of Washington state and British Columbia. One of the factors identified as a r...
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ژورنال
عنوان ژورنال: Latin American Journal of Aquatic Mammals
سال: 2006
ISSN: 2236-1057,1676-7497
DOI: 10.5597/lajam00095