Planned extinction: Is it ethical to deliberately wipe out a species?

[Teeqoz]

curl-6 said:

Teeqoz said:
Eradicating viruses are something entirely different, and not even remotely comparable.

Guinea worm isn't virus, nor are mosquitoes.

Mosquitoes aren't the source of the diseases, the actual diseases are. Thus the ethical solution in my head would be eradicating the diseases themselves, and I can't say I get any moral qualms from that. So no, we shouldn't eradicate 30 species of mosquitoes to stop malaria, we should eradicate malaria to stop malaria.

Is the guinea worm of any importance to any ecosystem? Does it fill any useful/neccesary role for nature?