Describe what happens when a keynote species is removed from an ecosystem

Removal of keynote species from an eco-system can lead to the existence  of the system in danger.

Explanation:

There are certain keynote species in the eco-system which has an important role to play in the survival of other species. The removal of these species can put the eco-system in danger. The keynote species helps to maintain the ecosystem by keeping it in harmony.

An ecosystem may cease to exist or can be taken over by a completely different kind of species by breaking the direction of the system if one of its keynote species is removed.

Keynote species can be divided into three groups by scientists-

(i) Predators: helps in controlling the population of the prey species by affecting the numbers of plants and animals in the food web, like- tiger sharks

(ii) Ecosystem engineers: an organism that creates or demolishes a club of species, like- beaver and

(iii) Mutualists: The interaction of two or more species for their own benefit, such as- bees.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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