The island of greatness


Panau is an island in Malaysia just NW of Singapore with an equatorial (Tropical) climate. The average rainfall per year is 240cm and the average temperature is 28C. The humidity is at 100% and tropical rainforests cover the island.

Organisms/Food Web

  The marine life in Panau includes the manta rays, whale sharks, dugongs, barracuda, lion fish, sea turtles, jellyfish, algae, sea sponge, krill, plankton, seagrass, small fish and shrimp

The terrestrial life in Panau includes the Python, Jaguar, Vampire bats, Iguanas, Red-eyed tree frog, Chimpanzees, Parrots, Macaws, Fruit bats, Monkeys, Insects, Orchids, Seeds, Banana trees, Bamboo and Coconut trees.



Impact of the Organisms

Once the initial plants are established,they make the island hospitable for other organisms by providing food, retaining top soil, their roots breaking up the hard volcanic sub-soil and providing shade from the harsh Malaysian sun.

An established insect population provides a permanent food source for insect eating birds. They also help with pollination of flowering plants and spread these plants more widely throughout the island.

The permanent bird population creates fertilization for areas of the island where there are no plants thus spreading the flora throughout the island. This also allows plants that rely on nutrient rich soil to establish themselves.

Bats compete for food sources with the birds.

The arrival of the Python poses a threat to the other wildlife, being a tertiary consumer. Macaw numbers are drastically reduced once the python is established. Previously, there were not natural predators of the birds who were thus able to feed off ground dwelling insects. Arrival of the Python and Iguana means that bird numbers reduce with their food sources now limited to the trees.

Again, the Red-eyed tree frog competes for the insects which reduce their numbers. But since there are more animals that means there is more animal matter and more places for the insects to lay their eggs. Thus insects increase in number providing more food for birds,bats, frogs and iguanas.

The jaguar poses the biggest threat. Because it is an introduced species it has no natural predator but preys on most all of the animals. Establishment of the jaguar population however stabilizes the population of the secondary level of animals (Birds, bats and frogs) leading to greater biodiversity.

The monkeys and chimanzees help to spred the population of coconut trees, orchards, bamboo and banana trees by eating the fruit of these so that the seeds are spred by their defecation. Jaguars begin to prey on the monkeys and chimps given the increasing population.

Introduction of Humans

Introduction of Humans.
If humans were to come to Panau the effects would be catastrophic. Humans need wood to make basic tools and huts. If they were to do this it would mean a great reduction in food for a lot of the animals as well as a loss of habitat for most of the animals. This would cause animals competing for the same food source to be greatly reduced maybe even causing some of the animals that rely on one food source such as the Red-eyed green tree frog or Iguana to die out.

Humans are also tertiary consumers. This means they would be competing for the same food source as the jaguar and python. This would probably affect the Python the most as the jaguar has a wide variety of different food sources whereas the python only has a few. Humans are naturally polluters and this could cause some marine species to be effected such as the sea turtle because if the sea turtle thought one of the pieces of pollution was food it could suffocate.

Humans naturally farm plants and animals. If humans were to farm plants this would mean a lot of species of flora to be replaced by a few crops. This would reduce biodiversity. A lot of species would lose their food source and die out or in some cases thrive by adapting to the new food source such as the iguana eating wheat or corn.

Humans rarely come alone so that would mean bringing with them some already domesticated animals such as sheep or cattle. Bringing already domesticated animals would mean the jaguar would be a pest and farmers would shoot them.

As well as bringing domesticated animals humans might bring unwanted pests that are more used to living with humans such as rats or mosquitos and because they are suited to living with humans they would thrive. Pest animals carry unwanted and foreign diseases which would destroy some of the mammals in the Eco-system (because they have not built up immunity for these alien diseases) but leave some of the reptiles that can't get diseases transmitted by mammals.

Animal classification

Flying Gibbon.





Long Nose Tortoise

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Superfamily: Testudinoidea
Family: Testudinidae

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