Predators And Prey

Question 0

Natural selection should favour…

Answer 0

Prey genes that code for traits that help avoid predators

Predators evolving adaptations that enhance their ability to attack

Question 1

What are the 4 stages of predation?

Answer 1

Detection
Attack
Capture
Consumption

Question 2

An evolutionary arms race between predator and prey occurs

Answer 2

Dawkins- coevolution. Adaptations on one side call forth counter adaptations on the other
The red queen effect- must constantly evolve, adapt to survive against ever evolving organisms, as well as to gain reproductive advantage

Question 3

A preys anti-predator adaptations

Answer 3

1- avoid being found (masquerade, crypsis, disruptive coloration)

2- avoid attack (conspicuous defences)

3- avoid capture (speed, startle, vigilant)

4- avoid consumption (physical or chemical defences)

Question 4

A predators counter adaptations. The predator imposes an important selection pressure on prey defences

Answer 4

1- detection (search strategies, flush pursuit)

2- attack and capture (physical e.g. Teeth, speed)

3- consumption (physical adaptation e.g. Boas wide mouth. Physiological e.g. Parrots reduce toxicity of prey by eating clay after feeding)