Environmental Engineering Reference
In-Depth Information
(a)
0
50
100
Population size (% of K)
(b)
0
N
MSY
100
Population size (% of K)
(c)
MSY
E
MAX
0
E
MSY
Hunting effort
Fig. 1.1
The logistic growth model. a) The per capita growth rate (number of new
individuals added to the population for each existing individual) as a function of
population size; b) The total number of new individuals added to the population
as a function of population size; c) Yield as a function of hunting effort, with the
maximum sustainable yield shown.
In economic systems, the amount of a good in the market and its price are determined
by the interplay between supply (the amount of a good a producer is willing to sell
at a given price) and demand (the amount of a good a consumer is willing to buy
