Dynamics of a Birth-Pulse Single-Species Model with Restricted Toxin Input and Pulse Harvesting

Figure 3

The annual-sustainable yield of (3.3) and (3.5), showing the relationship between the maximum annual-sustainable and the harvesting timing. Parameter values are 𝑘=1,𝑔=1.2,ℎ=2,𝑟=1,𝑑=0.4,𝑢=0.5,and𝑇₁=0.5. (a) Ricker function, 𝑏=25. (b) Beverton-Holt function, 𝑏=50,𝑐=3,and𝑛=9.

(a)

(b)