Tundra
Tundra Landscape
In Canada, the Tundra lies in the Northern part of Nunavut and the Northwest Territories.
The photo shown above is a food chain of the Tundra.Producers: Liverworts, Grasses, Caribou Moss, Lichens.
Primary Consumers: Lemmings, Caribou, Pikas, Musk Ox, Arctic Hares.
Secondary Consumers: Arctic Foxes.
Tertiary Consumers: Snowy Owls, Polar Bears, Kittiwakes.
Top Predators: Arctic Wolves, Brown Bears, Man.
Decomposers: Bacteria, Fungi.
There are more producers than primary consumers, secondary consumers, and top predators because the producers gain more energy. Producers get their energy from the sun, while the consumers gain energy from the producers. Which means producers gain more energy than the consumers.
People in the Tundra have threatened the biome by hunting and camping. When they kill animals, they use them for food, clothing, and shelter. If this does not stop, people and animals would no longer exist in the Tundra. Building houses/shelter can also threaten the biome because it would take up a lot of space which can change the living habits for the animals and people.
There are two different types of Tundra: Alpine and Arctic. The Tundra is the coldest biome, but in the Summer, the sun shines for the whole day. Even though the suns out the whole day, it can never warm the surface. The Tundra can never get warmer than 45° or 50° F. The Summer season usually lasts for 6-10 weeks. During the Winter season, the average weather is -20° to -30°F. The Tundra can be a cold and dry climate.
If there are extra top predators and not enough consumers, the predators can die out and their population will decrease and so will the consumers. When there isn't any consumers left to hunt, the predators will lose energy and be unable to do anything else to survive.
When there is a disease in the predators, the population decreases. It will also increase the population of the primary and secondary consumers since there would be no predators hunting them. For the producers, their population will remain the same.
If there were large numbers of producers and consumers, their populations would decrease rapidly even though there is a lot of them. They will rapidly decrease because of hungry predators hunting them until there is no more to be found. When that happens, the predators will also decrease in population but at a slower rate.
RESOURCES:
http://www.blueplanetbiomes.org/tundra.htm
http://www.buzzle.com/articles/tundra-biome-tundra-plants-and-animals.html
http://www.ucmp.berkeley.edu/exhibits/biomes/tundra.php
http://www.cdli.ca/courses/sci2200/unit01_org03_ilo01/b_activity.html
http://www.buzzle.com/articles/tundra-biome-tundra-plants-and-animals.html
http://www.ucmp.berkeley.edu/exhibits/biomes/tundra.php
http://www.cdli.ca/courses/sci2200/unit01_org03_ilo01/b_activity.html
