Habitat
A Habitat provides which four factors that organisms need to survive and reproduce?
1.
2.
3.
4.
Niche
*Be able to differentiate between niche and habitat and how they relate to each other
Competitive Exclusion Principle
Intraspecies competition
Examples: 1.
2.
Interspecies competition
Examples: 1.
2.
*Be able to explain how interspecies competition and intraspecies competition support the
Competitive Exclusion Principle
*Know how an ecologist studies populations-4 things (what he evaluates when studying a population )
Geographic range
Density and distribution
Population density
Types of distribution
1.
2.
3.
Growth rate
Size and rate of growth of a population are determined by:
1.
2.
3.
4.
4 Social factors that limit the growth of human populations:
1.
Examples: a. b.

4.
Biotic Potential
Limiting Factors
2.
3.
Examples: a. b.
Examples: a. b.
Examples: a. b.
1.
2. a. b. a. b.
*Know that limiting factors prevent the population from increasing indefinitely
Age structure
*Know why age structure is important when studying a population
Colonization
Invasive species
Examples: 1.
2.
*Know that colonization or immigration can lead to interspecies competition and lead to an
“invasive species” and emigration
Two types of population graphs:
1.
Exponential growth curve
2.
Logistic growth curve
Three phases of a logistical graph a.
Lag phase b.
Exponential phase c.
Carrying capacity