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Directi Directi

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Directi - PPT Presentation

on change instigation signals in Orcinus orca Nora Carlson Introduction Clicks Echolocation Clicks Click Trains and Buzzes Whistles Foraging Socializing gt10m Reich amp Thomson ID: 232233

calls clicks group pulsed clicks calls pulsed group amp buzzes discrete veirs study occurrence data buzz rate visibility rates

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Presentation Transcript

Slide1

Directi

on change instigation ‘signals’ in

Orcinus

orca

Nora CarlsonSlide2

Introduction

Clicks

Echolocation

Clicks, Click Trains and Buzzes

Whistles

Foraging, Socializing, >10m

Reich & Thomson

Discrete Pulsed Calls

Maintain Contact, Group Identity

Bigg

& FordSlide3

Visibility, Vocal Communication and Group Movement

White Faced Capuchin Monkeys

Boinski

1993, 2006

Salish SeaSlide4

Materials and Methods

Data sources

Lime Kiln/Dr. Otis

Gato Verde

Data Gathered

Calls

pulsed calls whistlesBuzzesindependent continuousDirection Changes 90°-180°Slide5

Call Rate

(

t

= 2.06, N = 26,

p

= 0.60)Slide6

Buzz

RateSlide7

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 callsSlide8

Limitations of Study

Sample Size

Limited Visibility

Human Error

Data EntrySlide9

Areas for Further Study

Direction Change Instigation

Clicks and Buzzes

Group Decision Making & Cohesion

Pod Dispersal

Communicative Function

Occurrence in ‘conversational bouts’ Slide10

Thank You

Beam Reach

Dr. Jason Wood

Dr. Val

Veirs

Dr. Scott

VeirsCapt. Todd ShusterKathryn, Libby and HoraceUniversity of Washington Friday Harbor LabsLynn Weber/

RoochvargDr. Robert OtisKen Balcomb