Last week we had to choose any type of topic in the category “Ecosystem”, so I chose to do Tundra. There are three Types of Tundras, Arctic Tundra, Alpine Tundra and Antarctic Tundra. In this blog post I did Arctic tundra because it had the most information.
Arctic tundra is found on the edge of the North pole, in parts of Greenland, Alaska, Canada, Europe, and Russia. The land is mainly flat, with no trees, the word “tundra comes from a Russian term for “Treeless plain.”
The arctic Tundra formed more than 10,000 years ago, during the last ice age. At the time, huge mountains of ice called glaciers covered much of the northern latitudes. When the world warmed up, the glaciers retreated, leaving behind the flattened tundra. These days, Arctic tundra is covered in ice and snow for seven to eight month of the year. Depending on where they are in the world, the temperature in the tundra vary, but it’s always pretty cold. In the winters, average temperatures are way below 0, sometimes going into minus 90s. Even during the summer, you will rarely find temperatures about 50 degrees. Below the tundra’s surface is a layer of soil called permafrost that stay frozen all year- round. In the summer, when the surface ice and snow defrost, the resulting water tends to pool. This creates Temporary ponds and wetlands, where bushes, grasses and flowers can grow. Moss and lichen also grown, creating a delicate, spongy ground. The animals found in the tundra depend on these plants for food. All kinds of animals make their home there, including caribou lemmings, polar bears, rabbits and wolves. You can also find birds like geese and snowy owls there during the summer, before they fly south for the winter. Even specially adapted black flies and mosquitoes make their contribution to this ecosystem
This is all the information I got from this Arctic tundra, but the next blog is going to be a continuum of tundra but talking about Antarctic tundra and Alpine tundra. I hope you enjoyed reading this blog post.