Lecture 17/01/2017

Question 1

metastable

Answer 1

When an ecosystem changes, you can establish metastability, but never the original ecosystem conditions

Question 2

“definite edge”

Answer 2

Edge effect

Question 3

“definite edge”

Answer 3

Edge effect

Question 4

Metapopulations

Answer 4

populations of species that are fragmented

Question 5

Ecosystem shape

Answer 5

Changing the shape of the boundaries of an ecosystem to something anthropocentric is bad

Question 6

Carrying capacity

Answer 6

upper limit on a population due to resources

Question 7

What is the population growth equation?

Answer 7

r = (b-d) + (i-e)

r = rate of growth

Births, deaths, immigration, emigration

Question 8

What are the stages of the demographic transition model?

Answer 8

1. preindustrial
2. transitional
3. industrial
4. postindustrial

Question 9

Give an example of “intrinsic rate of increase”

Answer 9

(e.g., predation and disease)

Question 10

What does ‘K’ stand for?

Answer 10

carrying capacity

Question 11

Logistic population growth

Answer 11

How many species can we remove from an ecosystem; what’s the limit (e.g., fish limit)