New Zealand is a land of beauty, filled with amazing and unique wildlife.
People living in New Zealand are
very lucky to be surrounded by such wonderful native animals and plants (that's fauna and
flora).
But the beauty of New Zealand's
plants and animals has nothing to do with luck, it has to do with time - a long, long
time.....
The land of Gondwana
140 million years ago
200 million years ago (WOW, that is a
long time) New Zealand was part of a big continent called Gondwana.
Then about 140 million years ago Gondwana slowly began to
split apart.
After millions of years it had split into the
different countries and continents we know today. The big ones are Australia, South
America, Africa, Antarctica and India. Lots of smaller island countries were also created,
one of those was New Zealand.
80 million years ago
Imagine you are doing a jigsaw puzzle.
You spread out the pieces and join some together. One piece falls off the table and gets
lost.
In the jigsaw of the continents, the
lost piece is New Zealand. 80 million years ago it drifted away from all the other
countries which had been part of Gondwana.
60 million years ago
It did not drift near other countries
or join up with any other lands.
New Zealand as it is today
All alone in the ocean, the lone piece
of jigsaw was like a raft with a special crew of plants and animals.
The Animals...
Primitive animals lived in Gondwana.
They became marooned on the islands of New Zealand, isolated from other lands. They were
the ancestors of moa, kiwi, tuatara and giant snails, earthworms and weta.
In other lands different animals began to evolve. Animals
appeared which had live babies and suckled them on milk. They are called mammals. You are
a mammal. Mammals spread over the other lands but the sea was like a moat around New
Zealand. Mammals which couldn't fly, couldn't get to New Zealand.
So the animals from old Gondwana went on living in
New Zealand in a land with no mammals to eat them, or take their food. Only flying animals
could get to New Zealand, and bats are the only mammals that can fly. So bats came to New
Zealand, along with flying insects and some birds.
Because of its isolation and lack of land mammals,
New Zealand became a land filled with unique animals, ancient frogs with no tadpoles,
insects as big as mice and birds that did not fly.
The Plants...
The plants of Gondwana were primitive.
There were many ferns and cone-bearing species (some of which have become extinct), and
the earliest flowering plants. These plants were also marooned on the islands of New
Zealand.
The seeds of some new plants managed
to reach New Zealand by floating across the seas, being blown by the wind or carried in
the bellies of birds - these plants became natives too.
Most countries share their native plants with other
countries, but not New Zealand. Many of our native plants are endemic, meaning they are
only found in New Zealand.
85% of New Zealand's native flowering plants are
endemic.
What's endemic, what's native, what's introduced?
Endemic means found only
in a particular country, eg. the kauri tree is endemic to New Zealand, it is not found
naturally in any other country.
Native means found
naturally in a number of countries, eg. the akeake tree is native to both New Zealand and
Australia.
Introduced means that
people have brought a plant or animal to a country where it did not live naturally before,
eg. rats, deer and gorse are introduced to New Zealand.
Today, most ancient plant and animal
species have disappeared from other lands, but many still survive in New Zealand.
Many of these amazing plants and animals are now threatened
with extinction because people have cleared forests, drained wetlands, polluted streams
and introduced weeds and animal pests.
To learn about New Zealand's threatened species go
to the Threatened! fact sheet.
The Kiwi Conservation Club is a Forest & Bird project for children.
İRoyal Forest and Bird Protection Society of New Zealand Inc 2008. All
rights reserved.