Population Growth Flashcards
1
Q
dN/dt = rN
A
N = population size, t = time, r = rate of increase
Population Growth equation
2
Q
J-shaped curve
A
Increases exponentially
3
Q
Density
A
individuals per unit of size
sample size, mark/recapture, count, indirect indicators
4
Q
Dispersion
A
pattern of spacing
5
Q
Clumped
A
Patchy aggregation
6
Q
Uniform
A
Even space
7
Q
(K-N)/K
A
Carrying capacity equation (population capacity = K)
Multiply by Population Growth equation
8
Q
S curve
A
Even exponential growth has a limit where it plateaus
Resources can run out/be limited
9
Q
Natality
Demography
A
Ratio of births to size of population
Babymaking capacity
10
Q
Mortality
A
Rate of deaths to size of population
Dying capacity
11
Q
Ecological realize
A
Factor increases natality or mortality
