Question

essential question: how are population size influenced and controlled within natural environment?
key vocabulary terms

1. population dynamics: the study how populations change in size due to birth rate / immigration and death rate / emigration and limiting factors (abiotic and biotic).
2. birth rate: the number of offspring born per 1000
3. death rate: the number of organisms died per 1000
4. immigration: the number of organisms that move into an area.
5. emigration: the number of organisms that move out of an area.
6. density - dependent factor: are factors that affect a population depending on the number of organisms in an area.
7. density - independent factor: are factors that affect all populations, regardless of their density.
8. carrying capacity: the number of organisms and environment can support.

density dependent limiting factors
1.
2.
3.
4.
density independent limiting factors
1.
2.
3.
4.
exponential growth cure
describe the shape:
logistic growth
describe the shape:
carrying capacity (k)
as resources become limited, growth rate slows and levels off. it has reached its (k).
overshoot occurs when a populations size temporarily the carrying capacity of its environment.
after a population reaches the carrying capacity, it often enters a state of dynamic. this means the populations size will not be static but will instead slightly above and below the carrying capacity as it responds to short - term changes in resource availability.

Explanation:

Density - dependent limiting factors are influenced by population density, such as competition, predation, disease, and parasitism. Density - independent limiting factors affect populations regardless of density, like natural disasters, temperature extremes, and human - made pollution. The exponential growth curve is a J - shaped curve representing unrestricted growth. The logistic growth curve is an S - shaped curve where growth slows as it approaches carrying capacity. When resources are limited and growth levels off, it has reached carrying capacity. Overshoot is when population size exceeds carrying capacity. After reaching carrying capacity, population enters a state of dynamic equilibrium, fluctuating slightly around it.

Answer:

Density Dependent Limiting Factors:

1. Competition
2. Predation
3. Disease
4. Parasitism

Density Independent Limiting Factors:

1. Natural Disasters
2. Temperature Extremes
3. Human - made Pollution
4. Severe Weather

Exponential Growth Curve - Describe the shape: J - shaped
Logistic Growth - Describe the shape: S - shaped

As resources become limited, growth rate slows and levels off. It has reached its Carrying Capacity (K).
Overshoot occurs when a population's size temporarily Exceeds the carrying capacity of its environment.
After a population reaches the carrying capacity, it often enters a state of dynamic Equilibrium. This means the population's size will not be static but will instead Fluctuate slightly above and below the carrying capacity as it responds to short - term changes in resource availability.