2.2 Flashcards
I have a strong dislike for this class
When is population growth highest in an exponential model?
Where the graph ends.
When is population growth highest in a logistical model?
Where births and deaths cross.
What is k?
Carrying capacity
What is dN/dt?
growth rate
What is t?
Time
What is n?
Population size
What is n(0)
initial population size
What is r?
growth rate per capita
What is density-dependent?
Relies on density (BIOTIC)
What is density-indepedent?
Doesn’t rely on density (ABIOTIC)
What is a flood?
density-independent
What is starvation?
density-dependent
What does an exponential graph look like?
It goes up and stays up
What does a logistic graph look like?
It goes up til k and then down and stays at about k.
How is pop. growth determined by deaths, immigration, births, and emigration.
More death and emigration is less growth
More birth and immigration is more growth
How does a logistic graph change when r changes?
The time that the line curves up changes
How does an exponential graph change when r changes?
The time that the line curves up changes.
How does a logistic graph change when k changes?
The population can be larger or smaller and will adjust.
How does an exponential graph change when k changes?
IT DOES NOT
How does a logistic graph change when N changes?
It grows more faster
How does an exponential graph change when N changes?
It grows more faster
