1. Populations
Chapter 2 Guide Part II

2. Population Characteristics
Number of Individuals
Same Species
In an area or place

3. Community All the Plants & Animals In a given area
? Community of Del Mar

4. Forest Community …………..

5. 2.Carrying Capacity versus Unlimited Growth……….
Maximum
Decline
Unlimited
No maximum
Still growing

6. & Populations Homeostasis = Fluctuating = Homeostasis Fluctuating
Steady state Births=Deaths
No Growth
Flat, straight graph
Fluctuating =
Changing
Grows or Declines

7. 4.Population Density
Number per?
Unit area=
? Fish
5 fish per 10 gallons

8. Density Dependent Factors:differ with the biome/environment
Amount food
Disease
Competition
Parasites
Versus Independent:
Abiotic factors
Habitat disruption

9. 5.Predator Prey Cycles:page 102
Prey grows
Predator follows
Prey falls
Etc,

10. 6. Demography =Study of human populations, age groups
Natality =
Births
Increases #
Mortality =
Deaths
Decreases #

11. World Birth & Death Rates

12. Immigration & Emigration
Coming in
Increases #
Emigration =
Going out
Decreases #

13. World Populations are affected only by……...
Natality
Mortality
Aliens would immigrate!
Space Colonies would emigrate