KIN 4520 Chapter : Lect 2 PA Measurement Epidemiology
15 Mar 2019
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Document Summary
Golden eagles, feral pigs, and insular carnivores: how exotic species turn native predators into prey. This articles focuses on explaining how trophic webs and communities are affected and altered by the introduction of exotic species. In this particular example the introduced exotic species was not a predator but instead a prey- the feral pig. 3 predators, the golden eagle, island fox, and island skunk began to unknowingly compete for resources. By introducing the feral pig the golden eagle, with a diet normally of island fox, began to flourish abundantly due to the increase of food from piglets. Consequently the island skunk grew in numbers due to its ability to avoid predation. One way the island skunk managed to escape predation was due to the fact that the skunk was nocturnal. The fox however was diurnal making it easier for golden eagles to prey on. Before the introduction of the feral pig, the golden eagle used the cali.
