Lecture 29: Consumer-resource Interactions II

Question 2

“Sit & Wait” attack strategy

Answer 2

AKA ambush predators.
Stay in one place, wait on the approach of prey then strike quickly.

Question 3

“Search & Pursue” attack strategy

Answer 3

Very active in pursuing prey.

Question 4

Primary Defenses

Answer 4

Avoid detection by predators

Question 5

Secondary Defenses

Answer 5

Once detected, evasion of predator.

Question 6

What is crypsis and what does it protect against?

Answer 6

Primary defense: Hiding/camouflage.
Protective against visual predators.

Question 7

What is disruptive coloration?

Answer 7

Secondary defense: Break up the outline of prey making it difficult for predator to locate.

Question 8

what do eyespots do?

Answer 8

Secondary defense: Trick predator into mislocating the head (indicates opposite direction of travel, minimize injury)

Question 9

What is flash coloration?

Answer 9

Secondary defense: startles predators.

Many are cryptic at rest. If disturbed, they can startle the predator and then hide again while the predator is distracted.