Stereotyped acoustic signals of the killer whale <Emphasis Type="Italic">Orcinus orca</Emphasis> (Cetacea: Delphinidae) from the Northwestern Pacific |
| |
Authors: | T S Shulezhko V N Burkanov |
| |
Institution: | (1) Biological Faculty, Moscow State University, Moscow, 119992, Russia;(2) Kamchatka Division of Pacific Institute of Geography, Far East Branch of Russian Academy of Science, Petropavlovsk-Kamchatskii, 683000, Russia;(3) National Marine Mammal Laboratory, NMFS, NOAA, Seattle, WA 98115, USA |
| |
Abstract: | In this paper the classification of the discrete calls of killer whales recorded in the Northwest Pacific is presented. It was shown that most of the calls can be divided into 20 discrete types easily distinguished by ear. The frequency parameters of the sounds made the maximum contribution into discrimination between call types, while their temporal parameters turned out to be less significant. The repertoires of stereotyped calls of killer whales from Chukot, Kamchatka, and the Commander and Kurile Islands were similar, due to the presence of shared types of calls. The greater the distance between the above-mentioned regions the fewer calls were shared by the resident killer whales. High vocal activity and the phenotypic features of the surveyed killer whales implied their attribution to the resident ecological type. |
| |
Keywords: | killer whale vocal repertoire discrete calls stereotyped acoustic signals ecotype |
本文献已被 SpringerLink 等数据库收录! |
|