In accordance with Wilson and MacArthur's theory of island biogeography, the following equations represent the immigration and extinction rates of species of beetles on a small island. (I = immigration rate of species per month; E = extinction rate of species per month; S = number of species currently on the island.)
I = 9 ? 0.2S
E = 0.3S
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Based on these equations, what is the expected equilibrium species diversity on that island?

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The Answer of In accordance with Wilson and MacArthur's theory of island biogeography, the following equations represent the immigration and extinction rates of species of beetles on a small island. (I = immigration rate of species per month; E = extinction rate of species per month; S = number of species currently on the island.)
I = 9 ? 0.2S
E = 0.3S
-
Based on these equations, what is the expected equilibrium species diversity on that island?

In Accordance with Wilson and MacArthur's Theory of Island Biogeography