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It depends on the species. If fish were to disappear then it could have a large adverse effect on the ecosystem. However, in many cases it could negatively effect the ecosystem.
if it leaves an environmental niche, then another, already existing, species might take that niche; or a new one might evolve to fill it.
Each organism in an ecosystem relies on many other organisms in order to survive. If even one species disappears, many other species are harmed by that disappearance. If you lose several or many species, then you might lose even more species, simply because those species can't survive without the ones that died out. Then even more species suffer and may disappear, and if enough very important species die out, the whole ecosystem can collapse.
Loss of one species from a community has a large effect. This is because this can cause major changes in food webs and chains and can cause other organisms to die.
fuuck yo biitch
it effects the food chains
It depends on the species. If fish were to disappear then it could have a large adverse effect on the ecosystem. However, in many cases it could negatively effect the ecosystem.
if it leaves an environmental niche, then another, already existing, species might take that niche; or a new one might evolve to fill it.
Each organism in an ecosystem relies on many other organisms in order to survive. If even one species disappears, many other species are harmed by that disappearance. If you lose several or many species, then you might lose even more species, simply because those species can't survive without the ones that died out. Then even more species suffer and may disappear, and if enough very important species die out, the whole ecosystem can collapse.
A keystone species is one that other lifeforms in an ecosystem depend on. Mosquitoes are a keystone species because they are extremely low on the food chain, and if they were removed from an ecosystem, the food supply would be interrupted.
3.One species may be eliminated from that ecosystem
Loss of one species from a community has a large effect. This is because this can cause major changes in food webs and chains and can cause other organisms to die.
Today, conservation efforts focus on protecting entire ecosystems as well as single species. Protecting an ecosystem will ensure that the natural habitats and the interactions of many different species are preserved at the same time.
In an ecosystem, a large number of species are dependent of one species of bird. This species of bird is an example of a keystone species.
When you have more than one species in a given niche, then if one species declines for whatever reason, there are other species which can replace it, and the ecosystem as a whole remains functional.
species diversity is the number of species that live in one area (or ecosystem)