PSYC 355 Lecture Notes - Lecture 10: Handicap Principle, Signalling Theory, Ethogram

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25 Apr 2017
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LECTURE 10 (Week 11): Natural Communication Systems
1. Introduction: What are Natural Communication Systems?
2. Communication: Influencing Behaviour
3. Communication: Influencing Understanding
4. Evolution of Communication
5. Canine Communication
1. INTRODUCTION: WHAT ARE NATURAL COMMUNICATION SYSTEMS?
- Examples of Natural communication systems
o Bee Waggle Dance- tells bees there is a pollen source and its location
o Stotting in gazelles
o Chimps pant hooting when excited
o Play behavior between dogs
o Skunk fur colour pattern
- Teaching chimps ASL = NOT natural communication system
ELEMENTS OF COMMUNICATION:
- Signal: dog bark
- Sender: dog
- Receiver: mail carrier (anyone receiving the signal)
- Communication does not have to be active, does not have to be a behaviour, can be
appearance/ colouration
o Aposematism
Signals: red skin
Sender: Poison Dart frog
Receiver: potential predators
2. COMMUNICATION INFLUENCING BEHAVIOUR
- Influencing behaviour one animal provides the stiulus for parters respose
A. STICKLEBACK FISH
1. Male (with red belly) swims in zig-zag path
2. Female follows male to his nest
3. Female enters nest and lays eggs
4. Male enters nest and releases sperm
B. POISON DART FROG
1. Colouratio of frog sigals I poisoous
2. Predator sees colouration and avoids the frog
3. COMMUNICATION INFLUENCING UNDERSTANDING
- Sometimes a signaler has the intention of informing you- of teaching you a new concept
A. VERVET MONKEY ALARM CALLS:
- Snake alarm: look to the ground
- Eagle alarm: take cover
- Leopard alarm: climb trees
- Seyfarth, Cheney, Marler (1980)
- Playback Experiments: Pre-recorded calls were played
ak fro oealed speakers (whe there weret
predators actually present)
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