Chapter 5 populations Flashcards
(6 cards)
0
Q
Three factors that affect Population size
A
Number of births, number of death, immigration or emmigration
1
Q
Population density
A
number of individuals per unit area.
2
Q
Exponential Growth
A
Reproduces at a constant rate. At first the number of the individuals will grow slowly but will become faster… under ideal comditions with ideal resources population will grow exopnetially
3
Q
Logistic growth
A
The growth slows or stops over time. Stops at the carrying capacity
4
Q
Carrying Capacity
A
The largest number if individuals that a given environment can supports
5
Q
5 factors that determine carrying capacity
A
Competiton, Predation, parasitism and disease, drought and other climate changes, human disturbances
