2.2 Test Study Guide Flashcards
What does N0 stand for?
The original population of the species.
What does dN/dt stand for?
Population growth.
What is an example of a
density-independent factor?
One density-independent factor is a drought. Other factors include floods, tornadoes, etc.
What is the definition of an density-dependent factor?
A density dependent factor is a factor that impacts the population growth only when the population density gets larger.
What does the variable “r” stand for?
Reproduction rate per capita
Which variable stands for the population number?
“N”
How do logistic graphs change if the K variable increases?
The population will even out at a higher spot with a higher K than with a lower K.
How is an exponential growth graph with a lower r value compared to a exponential growth graph with a higher r value?
The graph with the lower r will have a less dramatic slope, while the graph with the higher r will have a slope increasing at a mush higher rate than the other graph.
If the population of squirrels in an area started out small, would it increase a a higher rate than if the population started out large?
No, because there are less animals to reproduce with a smaller original population than with a larger original population.
What does the variable “K” stand for?
K stands for the carrying capacity of the species in a specific area.
