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Chosen Animal:

Salt Water Crocodile

Crocodylus porosus

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Word:

Definition:

Adaptation

The physical adjustment

to a different environment.

Environment

The habitat in which an organism lives in.





Burning Questions:

What other animals do they interact with other than their prey?

Crocodile Facts:

  1. Top Speed = 17kph (10.6mph)

  2. Length = 7 meters (Maximum)

  3. Weight = 910 to 1,360 kilograms (2000 - 3000 lbs)

  4. Lifespan = 70 years (some have been reported to 100 years)

Definition of Food chain: A food chain shows the relation between the consumers, producers and decomposers.

A succession of organisms in an ecological community that constitutes a continuation of food energy from one organism to another as each consumes the weaker and is the producer of the higher mammal/reptile.

Definition of Food web:

A fragile

combination of multiple food chains that integrate to form a network of producers, primary consumers, secondary consumers, tertiary consumers, and decomposers. Producers.

arctic_marine_food_web_90.jpeg

Primary consumers are mainly herbivores, herbivores are plant eating only mammals that feed on the nutrient packed plants that keep them alive. Some mammals feed on plants and meat, these are called omnivores. Omnivores can be primary or secondary consumers and this depends on its ranking in the animal kingdom. For example: A Cobra is the apex predator of Africa, and then there is a Kinkajou that lives at the top of the forest in the amazon forest. There is a huge difference in ranking between these two animals. Secondary consumers mainly feed on the primary consumers/Herbivores and some omnivores. For example: A grasshopper is a primary consumer of grass. A bird, who eats the grasshopper is a secondary consumer. Tertiary consumers are at the top of the list with all of the apex predators of the animal wildlife around the globe. It is a carnivore at the topmost level in a food chain that feeds on animals at all trophic levels. They can also be called scavengers. Then the composers are at the bottom of the list, the ones that decompose the remains of the carcasses of dead animals.

Region (Queensland)

Kilometres surveyed

Non-hatchling crocodiles sighted

Southern Gulf Plains

550.4

296

Northern Gulf Plains

267.3

271

North-West Cape York Peninsula

910.8

1884

North-East Cape York Peninsula

413.5

247

Lakefield National Park

757.2

1148

East Coast Plains

1058.8

434

Burdekin River Catchment

57.3

6

Fitzroy River Catchment

159.0

19

Total

4174.3

4303

River Name

Sightings per Kilometre

Mary River, Northern Territory

5.99

Adelaide River, Northern Territory

3.41

Daly River, Northern Territory

4.75

Moyle River, Northern Territory

5.71

Victoria/Baines Rivers, Northern Territory

1.65

Finniss River, Northern Territory

5.32

Reynolds River, Northern Territory

4.62

Cambridge Gulf, West Arm, Western Australia

0.79

Ord River, Western Australia

2.32

Wildman River, Northern Territory

7.06

West Alligator River, Northern Territory

3.08

South Alligator River, Northern Territory

3.96

East Alligator River, Northern Territory

4.99

Liverpool River, Northern Territory

3.48

Blyth River, Northern Territory

4.12

Glyde River, Northern Territory

5.05

Habgood River, Northern Territory

4.22

Baralminar/ Gobalpa River, Northern Territory

0.59

Goromur, Northern Territory u River

3.27

Cato/Peter John Rivers, Northern Territory

3.28

Roper River, Northern Territory

1.55

Habitat of the Saltwater crocodile:

Saltwater crocodiles live in coastal ocean water, fresh water,

Rivers, swamps, eastern India, south East Asia, northern Australia and

Bangladesh.

Diet:

Small mammals, insects, shellfish, fish, water, buffalo, cattle and they can eat people.

Role of a decomposer: Decomposers include many kinds of bacteria and fungi. They break down the wood, leaves and dead bodies of other living things, so that every living thing is recycled. Certain species of fungi and bacteria are the engines of the process of decomposition. When plants grow and produce new leaves, fruits, and stem wood, they use scarce nutrients like nitrogen to make the new tissues. Without decomposition, dead leaves would have so much nitrogen locked up in them that there would not be enough to reproduce new leaves.

The environment of a saltwater crocodile varies throughout the world. Saltwater crocodiles do live in the sea, or coastal shore, but they can also live in river banks. When they go into the river banks it is a sign that it is time for mating season. When they travel in the sea it is for migration or food. The sea contains many environmental items, such as; salt water, coral reefs, sand and many more. The river banks contain mud and other devices of camouflage. Females are significantly smaller than the males and rely completely on their "man" to protect them, males can grow up to 23 feet (7 meters) at most when they live a long and healthy life. The conditions that my animal live in are pending on where they live in the world. The Crocodylus porosus like to live in paces where they can sunbathe and conserve energy. Reptiles have scales that trap in heat and body fluids so that they don't dry out after a long time in the sun. Crocodiles have cold blood, every reptile has cold blood, so that means it is sufficient for a crocodile to sunbathe and get the right amount of heat or else they will die in cold weather.

Non_living_

Living



Saltwater

Fish



Mud Water

Other Saltwater Crocodiles



Sand

Alligators



Mud




Heat




Hot Weather








Dead Coral




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Saltwater crocodiles live on the coastal shore and in the murky waters of rivers. Saltwater crocodiles have to adapt quickly to the different environments they move to. Fact: When Saltwater crocodiles have there territory token over, they could travel more than 1000 miles to different territory.

Adaptations of the Saltwater crocodile:

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Physical Adaption:

  • Powerful Tail and webbed feet used for streaming through strong currents of the ocean.

  • Different scaling for better camouflage in the murky water.

  • Strong body muscles for fast movement and domination.

  • Massive jaws with sharp teeth are for digging into prey so that it won't slip away.

  • Hard & Large head for protection and weaponry usage.

  • Dry, tough, scaly skin which provides protection from drying out in hot arid climates. Their epidermis is filled with fat, which helps keep water inside the animal.

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Internal adaptation:

  • Tongue have special glands that excrete salt.

  • Big lungs to make it hold it's breath for a long time.

  • Kidney's help it adapt to saltwater and freshwater.


Behavioral Adaptations:

Saltwater crocodiles are both nocturnal and diurnal. Saltwater crocodiles hunt anytime of the day because they have special renters which allow it to adjust to the different light rays.