Siberian Tiger(Amur Tiger)!
Scientific name
external image 220px-P.t.altaica_Tomak_Male.jpg
Siberian Tiger
Lesson 1 and 2*
Tasks to complete
Done (/)
Choose a well researched animal, explore features of wikispace
Quick research on the internet or library for resources
Write good questions that you will work on later
Make vocabulary table (new science glossary)
Make plans to give references
Make an illustration of your food web, take a photo and post on wiki page
Describe role of decomposers
Examples of decomposers with pictures

What is Food Chain?
Food chain is when smaller animals or plants get eaten by big or meat eaters. There is one on top then followed by the others. It is mostly in the same order, Secondary consumer, then primary, producer and comes tertiary or decomposers. Can only connect to one source and limitation of connections to make. If one part breaks, then the other sources will damage as well and the whole system will break.
What is Food Web?
A food web is connections between other component that overlap and link to more than one source. There are many overlapping connections made, which explains that if just one source is gone, still few sources are left for that specific animal which would not make a chain reaction. For example in this food web it shows that the Alligator lizard consumes earthworms, millipede, pillbugs, insect larvae (maggots) and crickets.
Food web has 3 main elements:
  • Producers = plants, flowers, animals etc.
Producers are always at the bottom of a food chain and is the most biggest source.
  • Consumers = Animals, Vegetarian animals, Humans, cow
Consumers cannot get energy from the sunlight so they must eat the producers or other kinds of animals and plants.
Primary consumers (ex. cow) eat producers. Most of the time eats producers for example grass, plants or twigs.
Secondary Consumers (ex. lion) are the organisms that eat the primary consumers (most of the time).
Animals (ex. human) are called omnivores, which eats both primary and secondary consumers. A bear is a omnivore because it eats fish and meat but also eats berries.
Difference between Food Chain and Food Web:
Food chain can be only linked to one, so like a chain it can only connect to one. So if the one breaks that means everything else will break.
Though the food web shows the different sources of what each animal can eat. Even though one source breaks, still there are other sources to eat from. No matter how big or small the animal is, if any one of the consumers goes extinct then every other consumers would get affected and soon animals which includes us humans could die.
Question that I will work later on...
How has my chosen animal adapt from the past? (history of tigers)
How has my animal adapts to its environment?
Where and what job does my animal do in a food web or food chain?


Process or action of being adapted or adapting
The surrounding or the condition in which a person, animal or plant lives
The natural environment or a home of humans, plant and any other organisms
community of interacting organisms and their physical environment

Of or during the day
Of or during the night
interaction between two different organisms living in close physical association

Lesson 3:
Role of decomposers:
Decomposers are very important for any kind of ecosystem because without them, plants would not get enough essential nutrients which increases a pile of dead plants and animals. There are two types of decomposers, scavengers and decomposers and each type has a jobs to accomplish.
Scavengers are animals that eat the remain of decayed organisms and plants. When scavengers eat the dead, they would break it into small pieces. After the scavengers finish their job eating, the decomposers take it over and do the rest. Decomposers main role is to change the waste into nutrients which can be used in by plants.
Because Numerous decomposers are microscopic meaning small, it can be only identified by microscopes. Different decomposers do different jobs in the ecosystem. Such decomposers as bacteria would be more partial to break down meat or waste from carnivores. A visible decomposer, fungi eats fruits or vegetables.
external image worms.jpg
Earth worms are scavengers, though they only eat dead plants. Earthworms main role is to adapt soil structure, plant growth and nutrient dynamics. Their existence explains/indicates whether if all three elements are healthy or not.
external image tumblebug.jpg
This is a tumblebug also known as a dung beetle. This decomposer (scavenger) feeds on feces. Tumblebugs role up the wastes and make it round.
external image actinomycetes.gif
This is called the Actinolites, it eats the waste of herbivores or a dead plant.

Before 1st poster
This is my very first poster. I thought that it looked neat however I redid the whole poster again because I forgot to put the indications. I only put the name of each component though nothing else.

2nd poster
. I was done and I just had to do the arrows but I made a big mistake, the arrows were pointing in the wrong directions. One of my friend accidentally edit my poster so I redid the whole thing from the beginning.

Final Poster
This is my final poster and I think I did a good job. I spent 2 science lesson to finish and complete this.

Where do Siberian Tigers live? (Habitat)
Photo: A Siberian tiger grooming
Photo: A Siberian tiger grooming

There is an estimation that 400 to 500 siberian tigers live in the big wild although the numbers are decreasing and is an endangered animal. More than Half of Siberian Tigers live in birch forests or woodlands of Primorski Krai Region (east) Russia though a low number of siberian tigers are found in Northern North Korea and is decreasing. The northern forests is the most well completed ecosystem for the siberian tigers, and has low human density of any other tiger species habitat. The woodland allows the siberian tigers to gain much more room to roam. Most of the time each tiger lives alone once they have reached a specific time and tries to own a big territory to keep away from their rivals. Siberian tigers sometimes have a very large territory, which would be about 120 square miles.
Female tiger tries to get the male tiger's attention by roaring or moaning. A pair's courtship will happen by circling each other, roaring and sometimes the female tries to run away from the male. Both female and male will have several mates during their life time. Female siberian tiger usually keep their cubs safe till three to five months and are about three to four cubs in a litter. Cubs are all blind so their are mostly helpless which means that their mother should always keep an eye on them for protection. Female tigers could be very ferocious and sometimes aggressive when an enemy attacks especially when it has cubs. Cubs can open their eyes in two weeks time. The cubs would stick with their mother for an extensive time, and some might stay for around five years or so. The mother teach the cubs how to catch their prey by taking them to such trips, showing demonstrations and actually trying out. By the time the cubs are 1.5 years old, they can go hunting on their own without any assistance from their mother.



Physical features

Siberian tiger's orange colored skin is paler than other subspecies and sometimes have white color skin. siberian tigers have thick hair around it's neck, has a white belly and white chest. Siberian tigers can weigh up to 320kg, and has a size around 3.3m. During the winter, their coat lightens which helps to camouflage in the snow.
Red deers
Brown bears
What do red deers, antelopes, brown bear, moose eat?

Red deers
Brown Bear
Berries, fungi, insects
Roots, twigs
Grass, Plants
Grass, Lettuce

Lesson 4:

Ecosystem is a biological system, the interaction of different organisms which include factors of the both non-living and the living. In the living side there are human, plants, germs and animals. In the non-living side there would be soil, rock, water and air. If one element from either living or non-living disappears, the whole ecosystem would break by a chain reaction and humans, animals would have a hard time surviving.
How has siberian tigers adapt to their environment? (Wild)
About 80% of wild Siberian tigers live in birch forests or woodlands of Primorski Krai Region of Russia, some are also found in parts of Northern North Korea. The average temperature of North part of Primorski Krai is +1 °C, and in the southern part is +5.5 °C.
external image russia-primorsky.gif
Dead bushes or dead plants covered with snow.
Animal tracks. Also explains that the snow goes quite deep.

Lesson 5:

Siberian Tiger Adaptations


Physical Adaptations

External 1: One of the external features is that Siberian tigers have wide paws. It could be about 5.5 inches tall and 4.5 inches wide. Because Siberian tigers inhabit in such a cold place, of course there would be snow which means if siberian tigers did not have wide paws they would get stuck easily. This can lead to not catching their prey. This is how a Siberian tiger's paws look like. This is a Siberian tiger's paws. As you can see, it is wide so that the heavy body would not get caught into the deep snow. It also helps to catch and hold it's prey so that it won't run away.

External 2: Siberian tigers have long and strong hind limbs which helps it to jump without facing problems in the snow. The hind limbs are the back of the legs or arms of a person or a four-legged animal. The longer the hind limbs are, the more higher, stronger it can jump.
Internal 1: Siberian tigers has layers of fat along it's stomach and flank to insulate themselves from cold temperatures and to protect themselves from injuries when preys kick or harm the tiger.

Behavioral Adaptations (B.A)

1st B.A: Compared to other tigers, there is a rare chance for a siberian tiger to become a man-eater. Man-eater is a term used for any animal that preys upon humans.
2nd B.A: Siberian tigers sometimes gather into a group to hunt. Most of the time, once the tiger is at a specific age it will start to hunt on it's own because it is easier to hunt independently than going in a larger group. Though in some cases they become a group to catch their prey.
3rd B.A: Siberian tigers always have a big territory to protect from enemies. Tigers rarely attack, trespass other territories to keep safety.

Lesson 6:

Definition of...
Diurnal: Of or during the day
This means that you are active mostly during the day, where the the sunlight hits the surface, creating warmth. Aiming their prey would be seen easily but at the same time, easy for their prey to run away, and not many animals sleep during the day.

Nocturnal: Active, done or occurring at night
To be nocturnal, you are active during the night. This gives more advantage than diurnal animals because diurnal animals sleep during night therefore, it is easier to catch their prey without getting the prey to see. Also like owls, most nocturnal animals have special eyes that allows them to see in the dark night. Also because it is during the night, there is no sunlight which cools the temperature down, easy for animals that have hard time living in the hot temperature.

Siberian Tiger
Siberian tiger is described as a nocturnal animal, although most of the time they would sleep at nigh, is sometimes active in the day if there is a chance to catch their prey. Cat species like tigers and lions can see significantly in the night than in the day. Though tigers has a special adaptation with it's fur which does not need to be used during the night. Siberian tigers have stripes so that it helps them to camouflage in grass or forests, it makes it harder for the prey to see the siberian tiger.



Lesson 7:

Coat- fur: Siberian tigers skin, changes color and length during summer and winter. During summer the fur is fairly short and is tan gold color. Though during winter, the fur is more longer and the color will change to pale yellow.

Lesson 8:
Symbiotic: interaction between two different organisms living in close physical association

Mutualism: the doctrine that mutual dependence is necessary to social well-being.

Commensalism: an association between two organisms in which one benefits and the other derives neither benefit nor harm.

Parasitism: (of an organism) living as a parasite

Example of Mutualism: A symbiotic relationship which benefits both organisms.
crocodile and egyptian plover
This is an egyptian plover in the crocodile's mouth. The benefit of the egyptian plover is that they get food from the crocodile's teeth. The benefit of the crocodile is that their teeth are cleaned by the egyptian plover.

Example of Commensalism: A symbiotic relationship. Two organisms when one benefits, and the other derives, gain nothing.

Singing bird on tree branch
The ease goes to the singing bird since they have their own home though at the same time the tree does not gain or do anything, no harm either.

Parasitism: Any type of parasite that attaches to human or animal.


Bug on human skin
This is a bug on human skin. Some bugs and insects such as mosquitos harm human which benefits, but humans will get pain.

Tiger eating



Lesson 9:

Siberian tigers main difference between other species, one difference is that they are the biggest of all tigers as well as the biggest living feline and has many different features since they live in the cold.

Features of tiger
Used to camouflage in order to catch their prey, making it difficult for the prey to notice the tiger.
Length from head to tail
  • Male: 195cm average
  • Female: 170 average

  • Male:
  • Female: can weigh up to 120kg
Their eyes placed in from of their head. Tigers have excellent eye sight.
Helps tigers to balance

Lesson 10:
Describe how variations are inherited or caused by environment.
Big paws
To catch their prey
Strong, muscular legs
To jump high, and would not get stuck in snow
Excellent eye sight
To see during the night to catch their prey because tigers are nocturnal animals
30 teeth
Designed for slicing flesh:
  • The upper canines of a tiger are the largest of all cats, around 3 inches which would almost reach the length of a man's middle finger
  • Bad teeth makes it more difficult for the tiger to catch their prey



Lesson 11:
Classify organisms in your animal's environment according to
a) types of living things: animals, plants, microorganisms and fungi
b) vertebrate or invertebrate
c) types of vertebrates: mammals, birds, reptiles, amphibians and fish or invertebrates: jellyfish, starfish, roundworms, segmented worms, molluscs and arthropods.
Animals that live in the same environment...
  • antelope
  • moose
  • musk deer
  • sika deer
  • goral

Lesson 12:
Describe the features of your body that allow you to adapt so well to your environment.

How I adapt to that feature
Strong heart
Doing many sports, exercise and playing outside
I can challenge on harder exercise.
Do not get sick easily
Eat healthy food such as vegetables, fruits and meat. Eat 31 type of food but balanced

Muscular legs and arms
Doing sports, push ups, long distance running, short distance running, massage and walking.

Strong fingers
Playing the piano, violin, flute and other instruments that uses the hand.

Zoo as a place for animal research, reproduction, protection and toursim
Disadvantages /ethical concern
Prevent from deseases
Stress for animals from people crowded
No big space for territory
Longer life - animals
Cannot survive in the wild
Limitations of same species to mate
More visitors
Hot place - tigers are weak in hot places, faster to death
Cannot see the circle of life
Observations- educational
unhygienic conditions - makes it harder for animals to live
Limitations of interaction


Works Cited
“Siberian Tiger.” National Geographic . National Geographic , n.d. Web. 7 May 2012. <>.
“Siberian Tiger.” Wikipedia. N.p., 18 May 2012. Web. 18 May 2012. <>.
“Siberian Tiger Adaptations.” N.p., n.d. Web. 18 May 2012. <>.
“Siberian Tigers.”, n.d. Web. 7 May 2012. <>.