Lecture 7 - Predation and Compleity

Question 1

What is type I predator consumption? [1]

*FUNCTIONAL RESPONSE

Answer 1

A linear model, consumption increases equally as prey density does.

Question 2

What is type II predator consumption? [1]

Answer 2

Consumption rate exponentially increases as prey density does but decreases and slopes off as digestive limits are reached.

Question 3

What is type III predator consumption? [1]

Answer 3

More prey eaten as prey population increases.

Question 4

What’s the most common functional response? [1]

Answer 4

Type II

Question 5

What’s the difference between exponential and logistical growth?

Answer 5

Logistics has negative feedback

Question 6

What does pisaster show? [1]

Answer 6

Lose diversity and then one species becomes dominant.

It preys on most dominant species.

Question 7

What can non specialist predators do?

Answer 7

They can reduce biodiversity by eating everything.

Question 8

Key stone predation ? diversity. [1]

Answer 8

increases

Question 9

Generalist predation _ diversity

Answer 9

Decreases

Question 10

Predation can change ranking of c_____ors but not di___sity

Answer 10

competitors

diversity

Question 11

What can lead to a stable coexistence? [3]

Answer 11

Exponential prey + Type III func response

Exponential prey growth and type I functional response and density dependant predator mortality

Logistic prey growth and type II func respose

basically NEED negative feedback