PSYCH 2TT3 Lecture Notes - Hawk And Dove, Evolutionarily Stable Strategy, Emotion Classification
12 Jan 2014
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Document Summary
Fighting would be common if it"s the strategy that maximizes fitness. Initially developed to explain the rarity of animal righting, but now is used to understand social interactions. 1: v > c (v=4, c=2: ex. In both examples, dove isn"t an ess b/c a rare hawk strategy has a higher payoff against dove. At this frequency, the fitness of the hawk & dove strategies is identical (pg. There would be fewer fights when costs are relatively high. The winners are typically larger, have better fighting ability, or have better endurance. The 2 most common causes of fighting. Small didn"t escalate against large. Large won in 99. 3% of fights. Fewer encounters b/w losers & familiar winners than losers & unfamiliar winners. Eavesdropper (bystander) effect: the observer learns about the fighting ability of the individuals observed. Focal fish could either watch a fight b/w a pair of fish through 1- way mirror, or behind an opaque barrier.
