1. Reproduction Patterns
Population Dynamics
Reproduction Patterns

2. This is typically called life-history patterns.
In order to understand how an organism functions and its role in the environment, scientists study their reproduction patterns.
This is typically called life-history patterns.
There are two types of life-history patterns
Rapid life-history
Slow life-history

3. Rapid Life-History
This represents organism found in a rapidly changing environment.
These organisms are typically going to:
Have a small body
Mature rapidly
Reproduce early
Short lifespan
They reproduce rapidly, and then when environmental factors, such a temperature, change then most die out. The small part left alive will reproduce exponentially again when the conditions are right.
Ex: bacteria, some plants, insects, etc.

4. Slow Life-History
Represents organisms found in mostly stable environments.
These organisms are typically going to:
Reproduce and mature slowly (years instead of months)
Long-lived
Maintain the population at or near carrying capacity
Ex. Bears, humans, deer, trees, etc.

5. Population Density as a Limiting Factor
There are three types of dispersion for organisms
There are two types of density limiting factors
Density dependent
Density independent
Uniform
Random
Clumped

6. Density Dependent Limiting Factors
These are going to be things that happen because organism are living too close together.
These include things such as:
Disease
Competition
Predators
Parasites
Food

7. Density Independent Limiting Factors
These factors are going to affect organisms regardless of how closely they live to each other and other organisms.
Most are abiotic factors.
They include:
Temperature
Storms
Drought
Chemicals
Destruction to habitat