population and community ecology Flashcards
(11 cards)
1
Q
study of the factors that cause population to increase or decrease
A
population ecology
2
Q
study of the interactions between different populations in an ecosystem.
A
community ecology
3
Q
4 factors that affect the population size
A
birth rate
death rate
immigration
emigration
4
Q
measurement of population per unit land area
A
population density
5
Q
2 types of population density
A
crude density
biological density
6
Q
number of individuals per unit area at the given time
A
crude density
7
Q
number of individuals per unit of habitable space
A
biological density
8
Q
3 ways of distribution
A
random
uniform
clumped
9
Q
3 categories of age structure
A
lowest-highest
pre-reproductive
reproductive
post-reproductive
10
Q
organism living in unstable environments
A
r strategist
11
Q
organism living in stable environments
A
k strategist
