The noblefreshwater wrasse typically forages in pairs, allowing these fish a bet

Question

The noblefreshwater wrasse typically forages in pairs, allowing these fish a better chance to spot a predator before getting eaten by that predator. After spotting a predator, a wrasse can engage in one of two behavioral strategies – fleeing immediately (F), or alerting its partner (A) and then fleeing. Fish that flee immediately enjoy a survivorship rate of 60% if their partner also flees immediately and a survivorship rate of 75% if their partner pauses to alert them. Fish that pause to alert their partner enjoy a survivorship rate of 90% if their partner also pauses to alert them, and a survivorship rate of 0% if their partner instead flees immediately. What can we predict about this behavioral system? What can we know to be true about this system?

Explanation / Answer

The noblefreshwater wrasse typically forages in pairs, allowing these fish a bet

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