SG 9.2 Flashcards
population size
N
time
t
population growth rate
dN/dt
max per capita growth rate
r
N0
initial population size
What is the total population influenced by?
births, immigration, deaths, and emmegration
what are some density dependent limting factors?
disease, predation, and competition
what are some density independent limting factors?
food limitation, pollutants, climate extremes,
How do exponential graphs change when r (max per capita growth rate) increases?
The graph will curve high and more
How do exponential graphs change when r (max per capita growth rate) decreases?
The graph will curve lower and less
How do exponential graphs change when N (population size) increases?
the graph curves higher
How do exponential graphs change when N (population size) decreases?
it wont grow as fast
A lack of food prevents a certain population from growing any further.
logistic
The larger the population gets, the faster if grows.
exponential
Can happen in ideal environments with few limiting factors
exponential
