Lecture 8

Question 1

Range contraction

Answer 1

when a species reduces its geographical distribution, either by withdrawing from certain areas or through local extinction.

Question 2

Range shift

Answer 2

the geographical distribution of a species changes its location
* Typically in response to changing environmental conditions
* Most commonly used to describe a change in location without a change in area

Question 3

Range expansion

Answer 3

the process by which a species increases its geographical distribution, usually by moving into new area where it was not previously found

Question 4

Redistribution

Answer 4

the process of shifting or reallocating the distribution of organisms, resources, or ecological components within a given area or habitat