Population Distribution

Question 1

Niche

Answer 1

the range of abiotic and biotic conditions in which it can survive

Question 2

Fundamental niche

Answer 2

environment in which a species CAN persist

Question 3

Realized niche

Answer 3

environment in which a species DOES persist

Question 4

What niche is this an example of?

All of the land area in the continental US is technically suitable for American bullfrogs.

Answer 4

fundamental niche

Question 5

What niche is this an example of?

American bullfrogs are excluded from the midwest because of high density of snake predators.

Answer 5

realized niche

Question 6

Fundamental niches are constrained into realized niches on the basis of what two main things?

Answer 6

1) competition/predation/disease with other species which overlap in their fundamental niche
2) whether an organisms has had the chance to reach the location (dispersal ability)

Question 7

Invasive species

Answer 7

when humans remove that barrier, species can expand their realized niche into new areas which match their fundamental niche outcompeting native species

Question 8

In the real world how do we use ecological niche modeling with invasive species?

Answer 8

to predict the areas an invasive species may spread to (like the mountain pine beetles) based on the abiotic environment in areas where a species currently persists

Question 9

What is a close to home example of invasive species?

Answer 9

joro spiders