Tundra Biome Project

By crystal Durall 8th class

Biome Desccription

The Tundra Biome is located on top of the world ,So the north pole. It covers a fifth of the Earth's Surface. The most distinctive characteristic of Tundra is the soil ,it's permafrost, a permanently frozen layer of ground. During summer, the top section of the soil may thaw out allowing plants and microorganisms to grow. however, these plants and microorganisms become dormant during the cold winter months.

Abiotic Factors

The arctic tundra is at the top of the world -- around the North Pole. Animals are adapted to handle cold winters and to breed and rise young quickly in the very short and cool summers.

Temperature during the arctic winter can dip to -60 F(-51 C)! The average temperature of the warmest month is between 50 F (0 C). Sometimes as few as 55 days per year have a mean temperature higher than 32 F ( 0 C) the average annual Temperature is only 10to 20F (-12C to -6C).

The soil is often frozen. Permafrost, or permanent ice, usually exists within a meter of the surface. Water is unavailable during most of the year.

Biotic Factors

There are many animal some like the ones you see above and other animal like the ones you see below. The cold and the bad winters make life in the tundra very hard. There are no plants in the Tundra it is way to cold only in the summer can you see at lest 1 plant. Every animal must adapt in order to surviver. some grow a think fur which turn white in the winter for camouflage to surviver and to not be seen by prey or animal that might try to eat them up for lunch

Ecological Concers or issues

The tundra may seem tough, but it is a very sensitive environment. More people have recently been moving to the tundra to work in the mines and oil industry. New towns and roads are being built to support the increased population. Developments have interrupted many of the animals’ migrations and feeding patterns, as well as caused damage to the permafrost. It takes so long for the tundra to recover that tire tracks and footprints remain on the ground for decades after they were made. In areas of the tundra there are also many natural resources, such as oil. People worry that pollution from these mines and rigs may ruin the fragile ecosystem.A caribou migration route was interrupted by construction of the Alaskan oil pipeline. In some places the pipeline has been raised high enough above the ground for caribou to pass under it. Insects bombard the tundra in the summer and birds flock there to eat them. Pesticides used to control insects may work their way up through the food chain and affect many of the animals that live on the tundra. We need to be careful with the delicate tundra environment.