Alpine biomes are usually at an altitude of around 10, feet high or more and lie just below the snow lines of mountains. The general climate of an Alpine biome is very cold, icy, snowy and windy. During the summertime, temperatures in Alpine biomes reach around 40 to 60 degrees fahrenheit, however, come winter, temperatures are well below freezing and as the altitude increases, it can get much colder.
Climate Did you know that the Arctic Tundra is the world's youngest biome? It was formed 10, years ago. It is usually very cold, and the land is pretty stark.
Almost all tundras are located in the Northern Hemisphere. Small tundra-like areas do exist in Antarctica in the Southern Hemisphere, but because it is much colder than the Arctic, the ground is always covered with snow and ice.
Conditions are not right for a true tundra to form. Tundra comes from the Finnish word "tunturia", which means a barren land. The ground is permanently frozen 10 inches to 3 feet 25 to cm down so that trees can't grow there.
The bare and sometimes rocky ground can only support low growing plants like mosses, heaths, and lichen. In the winter it is cold and dark and in the summer, when the snow and the top layer of permafrost melt, it is very soggy and the tundra is covered with marshes, Alpine biome, bogs and streams that breed thousands of insects and attract many migrating birds.
The main seasons are winter and summer. Spring and fall are only short periods between winter and summer. The tundra is the world's coldest and driest biomes. During the summer the sun shines Alpine biome 24 hours a day, which is why the Arctic is also called the Land of the Midnight Sun. Summer are usually warm.
The Arctic tundra is also a windy place and winds can blow between 30 to 60 miles 48 to 97 kilometers per hour. Only about 6 - 10 inches of precipitation mostly snow fall each year. Below the soil is the tundra's permafrost, a permanently frozen layer of earth.
During the short summers the top layer of soil may thaw just long enough to let plants grow and reproduce. Since it can't sink into the ground, water from melting permafrost and snow forms lakes and marshes each summer.
There is barely any vegetation in the tundra, only about 1, different species, which isn't very much. These are mostly shrubs, sedges, mosses, lichens and grasses. There are about varieties of flowers. The growing season is only about 50 to 60 days long.
There are no trees, except for some birches in the lower latitudes. The ground is always frozen beneath the top layer of soil, so trees can't send their roots down.
Willows do grow on some parts of the tundra but only as low carpets about 3 inches 8 cm high. Most plants grow in a dense mat of roots which has developed over thousands of years. The soil is very low in nutrients and minerals, except where animal droppings fertilize the soil. Surprisingly there are animals in the tundra.
Although there isn't a lot of biodiversity, only 48 species of land mammals are found on the tundra, there are a lot of each species. These consist of slightly modified shrews, hares, rodents, wolves, foxes, bears and deer. There are huge herds of caribou in North America known as reindeer in Eurasia which feed on lichens and plants.
There are also smaller herds of musk-oxen. Wolves, wolverinesarctic foxes, and polar bears are the predators of the tundra. Smaller mammals are snowshoe rabbits and lemmings. There aren't many different species of insects in the tundra, but black flies, deer flies, mosquitoes and "no-see-ums" tiny biting midges can make the tundra a miserable place to be in the summer.
Mosquitoes can keep themselves from freezing by replacing the water in their bodies with a chemical called glycerol. It works like an antifreeze and allows them to survive under the snow during the winter. The marshy tundra is a great place for migratory birds like the harlequin ducksandpipers and plovers.
The tundra is one of Earth's three major carbon dioxide sinks. A carbon dioxide sink is a biomass which takes in more carbon dioxide than it releases. Carbon dioxide is a greenhouse gas that contributes to global warming.
During the short summer tundra's plants take in carbon dioxide, sunlight and water in the process of photosynthesis.The word tundra comes from the Sami people of Northern Finland, Sweden and Norway and means “land of no trees.” Similar to the arctic tundra, the Alpine Tundra also has no trees.
Yet unlike the arctic tundra, which is restricted to high latitudes, the alpine tundra can be found anywhere on Earth.
A biome / ˈ b aɪ oʊ m / is a community of plants and animals that have common characteristics for the environment they exist in. They can be found over a range of continents.
Biomes are distinct biological communities that have formed in response to a shared physical climate. In physical geography, tundra (/ ˈ t ʌ n d r ə, ˈ t ʊ n-/) is a type of biome where the tree growth is hindered by low temperatures and short growing seasons.
The term tundra comes through Russian тундра (tûndra) from the Kildin Sami word тӯндар (tūndâr) meaning "uplands", "treeless mountain tract". Tundra vegetation is composed of dwarf shrubs, sedges and grasses, mosses.
Welcome to the Kids Do Ecology Biomes Pages! Aquatic Biomes | Terrestrial Biomes | GAMES!. What are biomes? Biomes are regions of the world with similar . Please be aware that this page may contain spoilers. If you do not want spoilers, please leave now!
This page is used to store information on newly-released dragons and on-going events that have incomplete data, to be used for article creation once the release or event is complete. Background Extinction Normal extinction of species that occurs as a result of changes in local environmental conditions.
Also see mass extinction. Backscattering Portion of solar radiation directed back into space as a result of particle scattering in the atmosphere.