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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.
Keytone Species
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.
The Hawthorne effect
yes we do when we pollute it or help it grow more. destroy it or repair it. In my opinon any living organism in the natural world must effect it. Since we are the largest species by mass in the natural world it would only be logical to assume that we as a species have the largest effect on it.
it has led to the disappearance of some important species,
Overhunting of animal populations, leading to species depletion and ecosystem instability.
What is 'this'.
because usually we could run out of an important predators and their would be more of the same creature that we need
Extinct or threathening the species to extinct
another dust bowl
there is no direct effect on mankind if an animal is extinct or alive.it will cause imbalance in the environment where it became extinct.in some cases it my lead to the death of some other species.the death of several species will have an effect on mankind.but you will agree that every animal is better alive than dead.so it is essentialto conserve them. hunt now........ ................hunted later.
they have effect on it by eating and killing all the native species
When there is a resulting effect of an act on some other business, be it good or bad; we call it as rub-off effect. Example: If Promotion efforts of an umbrella brand lead to increased visibility and sales of it's sub-brand. We can call the promotional efforts to have a rub-off effect on the sub-brands. Thanks, ks
If the population species of a given area is doubled,what effect would this have on the resources of the community?
It leads to speciation. many species in nature have evolved by this method.
they will die