Ethogram of selected behaviors initiated by free-ranging short-finned pilot whales (Globicephala macrorhynchus) and directed to human swimmers during open water encounters

Scheer, Michael; Hofmann, Bianka; Behr, Itay P.
September 2004
Anthrozoos;2004, Vol. 17 Issue 3, p244
Academic Journal
In order to establish an ethogram of interactive behaviors initiated by free-ranging short-finned pilot whales (Globicephala macrorhynchus) and directed to human swimmers, we initiated encounters with non-habituated pilot whale groups during open water encounters southwest of Tenerife, Canary Islands, over two field seasons (1996 and 2001). Human swimmers followed a precautionary set of rules during approaches. Encounters ranged in duration from 3 to 44 mm (M = 14.1 mm ± SD = 7.6; n = 35). We describe 11 interactive behaviors and compare them with previously described interactive behaviors reported in the scientific literature on the same and other toothed whale species. In contrast to other researchers focusing on reports of aggressive behaviors initiated by free-ranging as well as captive short-finned pilot whales, we observed with one exception ("headshake") apparently affiliative and non-aggressive behaviors during this study. Several interactive behaviors were found to match descriptions from other researchers observing the same as well as other toothed whale species. During this study, swimmers behaved carefully and the number of swimmers was low. We strongly recommend to follow the code of conduct based upon the methodology described in the paper e.g., low numbers of swimmers and no contact initiations by swimmers during human-pilot whale interactions, in order to reduce the likelihood of potentially dangerous aggressive interactions.


Related Articles

  • Review of self-initiated behaviors of free-ranging cetaceans directed towards human swimmers and waders during open water encounters. Scheer, Michael // Interaction Studies;2010, Vol. 11 Issue 3, p442 

    Open water encounters of swimming and wading humans with wild cetaceans have increased worldwide. Behaviors being self-initiated by cetaceans during encounters and addressed towards humans still have received little study and their structure and function mostly remain unclear. This study reviews...

  • BEHAVIOUR OF SHORT-FINNED PILOT WHALES GLOBICEPHALA MACRORHYNCHUS (GRAY, 1846) (MAMMALIA: CETARTIODACTYLA: DELPHINIDAE) IN THE SOUTHEASTERN ARABIAN SEA. Sajikumar, Kurichithara K.; Ragesh, Nadakkal; Mohamed, Kolliyil S. // Journal of Threatened Taxa;10/26/2014, Vol. 6 Issue 11, p6488 

    The article presents a study that examined the behavior of Globicephala macrorhynchus short-finned pilot whales in the southeastern Arabian Sea. The researchers observed that the short-finned pilot whales frequently crossed in front of their vessel, moved along with the vessel and rolled...

  • Marine Mammals Enact Individual Worlds.  // International Journal of Comparative Psychology;2010, Vol. 23 Issue 4, p792 

    No abstract available.

  • A Belgian survey on geriatric assessment in oncology focusing on large-scale implementation and related barriers and facilitators. Kenis, C.; Heeren, P.; Decoster, L.; Van Puyvelde, K.; Conings, G.; Cornelis, F.; Cornette, P.; Moor, R.; Luce, S.; Libert, Y.; Van Rijswijk, R.; Jerusalem, G.; Rasschaert, M.; Langenaeken, C.; Baitar, A.; Specenier, P.; Geboers, K.; Vandenborre, K.; Debruyne, P.R.; Vanoverbeke, K. // Journal of Nutrition, Health & Aging;Jan2016, Vol. 20 Issue 1, p60 

    Objectives: The aim of this study is to describe a large-scale, Belgian implementation project about geriatric assessment (=GA) in daily oncology practice and to identify barriers and facilitators for implementing GA in this setting. Design / setting / participants: The principal investigator of...

  • PLATE 63 MEDIUM-SIZED BLUNT-HEADED CETACEANS.  // Peterson Field Guide to Mammals of North America;2006, p126 

    An encyclopedia entry for "Medium-Sized Blunt-Headed Cetaceans" is presented. Pilot Whales are described as having stocky bodies with bulbous forehead and a thick tail stock. Its dorsal fin is located at the base and is positioned well forward. Pilot Whales species include the Short-Finned Pilot...

  • Whale watching cruises.  // Long Island Business News (7/1993 to 5/2009);5/23/94, Vol. 41 Issue 21, Leisure Guide p74 

    Presents information on whale watching cruises in Long Island, New York.

  • Whale watching cruises.  // Long Island Business News (7/1993 to 5/2009);6/5/95 Supplement, Vol. 42 Issue 23, p87 

    Provide information on the whale watching cruise of the Viking Star & Viking Star Ship in Long Island, New York. Admission; Reservations; Group discounts.

  • Thar she blows! Gast, D.V. // New York;8/27/90, Vol. 23 Issue 33, p54 

    Recommends taking a marine-wildlife-watching cruise from Montauk, N.Y. on the `Finback II.' Aided by sonar and Loran detection systems; Whales, sharks, dolphins, and turtles; Other points of interest.

  • Thar they blow.  // Yankee;May90, Vol. 54 Issue 5, p23 

    Reports on whale watching excursions that take place out of Gloucester, Massachusetts, the Whale Watching Capital of the World. Prices; Who to call for information.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics