Animal Communication Flashcards
Definition of communication?
The process in which actors use specially designed signals or displays to modify the behaviour if reactors (kerbs and Davies 1993)
What is communication?
Darwin 1872
- the expressions of the emotions in man and animals
- no real focus in communication of cognition
- more on the inevitably if mind/ emotion
Ecological constraints?
The communicative modality depends on ecology in ant species
What are ecological constraints?
- leptothorax spp. Fed on large dead beetles that need two ants to carry
- go back to best and recruit another ant by regurgitation
- lead helper to good site by tandem running
What are reciever constraints?
The senses of the reciever also constrain in the evolution of the signal
How do these behaviours become signals?
Through ritualisation
- behaviour becomes highly stereotyped, repetitive, exaggerated
What are the three hypotheses about ritualisation?
- Reduction if ambiguity
- Manipulation
- honesty
Reduction of ambiguity
- ritualised signals may be less ambiguous, greater clarity of signal
Manipulation
- signallers must benefit from signalling
- evolutionary arms race between actor and reciever
- signal gets louder as process goes on
Honesty
- Zahavi handicap hypothesis
- ritiualisation allows signals to become reliable signals of quality
Can communication involved cognition?
Yes
How does language differ from animal communication?
- intentionality
- complexity
- productivity
- social sciences view
- forms core of human culture