What are some examples of how the introduction of nonnative species can have disastrous results?

Question

What are some examples of how the introduction of nonnative species can have disastrous results?

Answer 1

rabbits in Australia

Answer 2

if there are no preditors ,an introduced specie can become a plague and devour other things ,such as plants or animals ,disturbing the natural balance ,

Answer 3

--Africanized bees

--Nonindigenous species were cited as a contributing cause in the extinction of 27 species and 13 subspecies of North American fishes over the past 100 years.

--Hydrilla (Hydrilla verticillata), an aquatic weed that causes a major navigation hazard, is believed to have been released by aquarium dealers in an attempt to create a domestic source of the plant

-Introduction of the Pacific oyster on the west coast brought with it a particular kind of snail that preys on native oysters.

-Introduction of the sea lamprey since the 1830's contributed to the decline of several fish species and severely damaged the sport and commercial fisheries of the Great Lakes.

Answer 4

What's a nonnative species?

Answer 5

Introducing species in a place where they did not originate before, could have both positive and negative affects. Negative affects would be that they can destroy the habitat by affecting the food chain.

Answer 6

Cane toads in Australia have had a very adverse impact.

Actually there is a citizen's group that is pretty large, devoted to killing them off.

Here is their site.

http://www.frogwatch.org.au/

http://en.wikipedia.org/wiki/Cane_toad#A...

You might also look into the introduction of mongooses to Hawaii. Intended to control local snake populations, actually ended up eating many rare bird eggs, eventually killing off various species.