What I mean is– if some amphibians go extinct, what will the local consequences likely be?
The article regarding which you ask this question discusses the importance of amphibians as both predators and prey. When any one part of an ecosystem is removed, predator-prey relationships go out of whack until the ecosystem settles at a new equilibrium. Since many amphibians feed on mosquitoes, if the amphibians were to go extinct, mosquito populations might catostrophically increase. Because amphibians are food for some snakes and birds, we can expect that these species might go hungry and that their populations would decline as well.
As mentioned in the article, amphibians feed on mosquitoes and other pests throughout their lifetime. The impact of this may not be noticeable now, but if all the local amphibians disappeared one day, we could see a dramatic rise in the amount of pests. Moreover, amphibians also have their own place in the food web so their extinction would mean that their predators are out of one food source. Since it’s difficult to study the holistic impact of interactions between species, I think scientists follow the precautionary principle and try to prevent extinctions so that we don’t have to find out a species was important after it’s too late.
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