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Directi on change instigation ‘signals’ in Orcinus orca Nora Carlson

Directi on change instigation ‘signals’ in Orcinus orca Nora Carlson. Introduction. Clicks Echolocation Clicks, Click Trains and Buzzes Whistles Foraging, Socializing, >10m Reich & Thomson Discrete Pulsed Calls Maintain Contact, Group Identity Bigg & Ford.

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Directi on change instigation ‘signals’ in Orcinus orca Nora Carlson

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  1. Direction change instigation ‘signals’ in Orcinus orcaNora Carlson

  2. Introduction • Clicks • Echolocation • Clicks, Click Trains and Buzzes • Whistles • Foraging, Socializing, >10m • Reich & Thomson • Discrete Pulsed Calls • Maintain Contact, Group Identity • Bigg & Ford

  3. Visibility, Vocal Communication and Group Movement • White Faced Capuchin Monkeys • Boinski 1993, 2006 • Salish Sea

  4. Materials and Methods • Data sources • Lime Kiln/Dr. Otis • Gato Verde • Data Gathered • Calls • pulsed calls • whistles • Buzzes • independent • continuous • Direction Changes • 90°-180°

  5. Call Rate (t = 2.06, N = 26, p = 0.60)

  6. BuzzRate

  7. Discussion • Call Rates • Historical lack of behavioral correlation • Simple/complicated • Focusing on irrelevant differences • Buzz Rates • Clicks and Buzzes • Shared information (Barrett-Lennard) • Occurrence in discrete pulsed calls

  8. Limitations of Study • Sample Size • Limited Visibility • Human Error • Data Entry

  9. Areas for Further Study • Direction Change Instigation • Clicks and Buzzes • Group Decision Making & Cohesion • Pod Dispersal • Communicative Function • Occurrence in ‘conversational bouts’

  10. Thank You • Beam Reach • Dr. Jason Wood • Dr. Val Veirs • Dr. Scott Veirs • Capt. Todd Shuster • Kathryn, Libby and Horace • University of Washington Friday Harbor Labs • Lynn Weber/Roochvarg • Dr. Robert Otis • Ken Balcomb

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