How populations grow
Section 5.1
Characteristics of populations

Geographic distribution (range)

Population density


Growth rate
Age structure
Geographic distribution
Population density

Number of redwoods on the Olympic
Penninsula
Population density

Number of penguins in the Crozet
Archipelago
Growth rate
Growth rate

Depends on:
Birth rates
 Death rates
 Immigration
 Emigration

Age structure

Graphical representation of gender and
age groups in an area/country
Growth patterns

Exponential


Occurs under ideal
conditions
Out of control growth

Logistic



Occurs as resources
become less available
Population growth
slows/stops
Eventually a carrying
capacity is reached
Carrying capacity

Number of eggs in a carton

Number of ounces in a gallon of milk

Students in a room
 Now
you come up with some
examples!
Complete Analyzing Data
pg 123