Introduced Species in New Zealand

Introduced Species in New Zealand

What does 'introduced species' mean?

Introduced species are species that have been brought to another place, outside of its native area, into another area, by humans, either accidentally, or on purpose.

Why were they brought to NZ?

They were brought to NZ with the thought that they would fix a problem with the environment. Soon after they came, they created another problem.

Stoats were brought to NZ to control rabbits eating food from farms, but soon spread out and killed young native
Possums eat many native species including snails and beetles as well as native birds. Possums decimate forest canopies and compete directly with native birds like kiwi for food and resources.

Possums spread bovine tuberculosis to cattle and deer, resulting in high costs and lost productivity, and also harm horticulture and commercial forestry crops.

Why have their numbers exploded?

The numbers have grown because the species are living a care free life. They have no other predators coming after them, and they reproduce to make more. 

What effect do they have on our native plants and animals?

The species have had both positive and negative impacts. Some of them were brought to NZ to fix a problem, but then made another problem.

How is DOC (Department of Conservation) trying to get rid of them?

Choose 2 introduced species :
- Write about how they are affecting our native forests, grasslands, and birds.

- What control methods are being used?

- Are these methods having any success?

LIST OF INTRODUCED SPECIES IN NEW ZEALAND :

Rabbits

Possums

Rats

Stoats

Ferrets

Weasels

Goats

Tahr

Red Deer

Wallaby

Pigs