2.2 Population Growth Flashcards
What does N stand for in the population growth model?
Population size
What does N0 stand for in the population growth model?
Initial population size
What does r stand for in the population growth model?
Maximum per capita growth rate
What does t stand for in the population growth model?
Time
What does K stand for in the population growth model?
Carrying capacity
What does dN/dt stand for in the population growth model?
population growth rate
What is the difference between an exponential and logistic growh model?
The exponential growth model describes growth without limiting factors, while the logistic growth model describes growth with limiting factors.
Is food and water accessibility a density dependent or independent limitng factor?
Density-dependent
Is a drought a density dependent or independent limiting factor?
Density-independent
Do density-dependent limiting factors tend to be abiotic or biotic?
Biotic
Do density-independent limiting factors tend to be abiotic or biotic?
Abiotic
How does an exponential growth model change when r increases?
The curve gets steeper, which means that the population size is increasing at a faster rate
How does a Logistic growth model change when r increases?
The population reaches the carrying capaity faster.
How does a Logistic growth model change when K increases?
The population size can increase more without the population growth rate decreasing
