Ecology of Populations. Essential knowledge 2.D.1:. All biological systems from cells and organisms to populations, communities and ecosystems are affected by complex biotic and abiotic interactions involving exchange of matter and free energy.
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G = rN
N = population size
r = intrinsic rate of increase
If r is constant, then the rate at which population grows depends on the number of individuals already in the population (N), value of r depends on the kind of organism
G = dN/dt (∆N/∆t) = change in # of individuals over a given time
r = (b-d) = birth rate - death rate
G = rN or ∆N/∆t = (b-d)N
( called K N)