2.2 Flashcards
How is population determined?
Birth plus Immigration >/=/< Death plus emigration. > equal positive growth, = equal no growth, < equal negative growth.
Make a graph of Exponential and Logistic models.
m
| m
| - - - m - - n - n - n - n -
| m n
| m n
| m n
| m n
| m n
|m n
|___________________________________________
Refer to the graph you created, when is the population the highest.
Exponential is the highest the graph goes
Logistic is half way between carry capacity.
N is…
Variable representing population
N0 is…
Variable representing initial population.
T is…
Variable representing time.
R is…
Variable representing maximum per capital growth.
dN/dT is…
Variable representing the population growth rate.
K is…
Carrying capacity
What is the difference between Density Independent and Density Dependent?
Density Dependent only has a major impact when the population is growing while Density Independent will affect the population no matter what condition the population is in.
Where is the population growth the lowest?
At the start and once it reaches carrying capacity for Logistic.
What is the population growth of the graph from
Starts positive but ends with no growth once hit carry capacity.
