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Research paper example essay prompt: Biomes Of The World - 1106 words

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Biomes Of The World A biome, also known as life zones, consists of all plants, animals, and other organisms, as well the physical environment in a particular area. A biome is characterized by its' plant life, climate, and location. The climate and physical features determine the boundaries of a biome. A biome is made up of many different ecosystems. The ecosystems tend to have the same pants and animals as neighboring biomes around the boundaries.

The major biomes are the tundra, taiga, tropical rain forest, temperate forests, desert, grassland, savanna, chaparral, and marine. Each biome has it's own characteristics such as the tundra. The tundra is a biome that is located in the Northern Hemisphere of the world. It circles the North Pole and reaches down to the taiga. The tundra has a very cold and harsh climate, especially in the winters. The average winter temperatures is about -30F and average summer temperatures is roughly 37-54F.

The yearly amount of precipitation, which includes melting snow, averages to about 6 to 10 inches. With these conditions it makes for a short growing season of about 50-60 days. In some parts it can be up to 180 days. This is only found in the more southern part of the tundra. Another aspect of the tundra includes the vegetation that is found there and the adaptations that have been made.

The tundra is known for its' cold temperatures, but also its' limited plant species. The growth of the vegetation is primarily low to the ground and the biomass of plants is concentrated in the roots. Here the plants reproduce more likely by division and building than by flower pollination. Some of that growthforms that you will find in the tundra include tussock, mats or cushion plants, rosettes, and dwarf shrubs. Other examples of plants include lichens, mosses, sedges, perennial forbs, dwarfed shrubs (heaths, birches, and willows), cotton grass, liverworts, and 400 varieties of flowers. Tundra plants over the years adapted to sweeping winds and disturbances of the soil. Another adaptation is that they are short and cluster together to help endure the cold.

Also they can carry out photosynthesis at low temperatures and low light intensities. Plants aren't the only things that have had to adapt to the conditions, animals have had to as well. Animals of the tundra have had to adapt to the long cold winters and to having to raise their young quickly in the summer. Some other adaptations of animals include thick insulating cover of feathers or fur; large, compact bodies; pelage and plumage that turns white in the winter and brown in the summer; the ability to accumulate thick deposits of fat during the short growing season; hibernation; and migration. Some of the animals that are found living in the tundra are lemmings, voles, caribou, artic hares, squirrels, artic foxes, wolves, polar bear, ravens, snow buntings, falcons, loons, ravens, sandpipers, terns, snow birds, mosquitoes, flies, moths, grasshoppers, black flies, artic bumble bees, cod, flatfish, salmon, and trout. Some of these animals are shared with other neighboring biomes but some are only home to the tundra. The tundra is the simplest biome in terms of species composition and food chain.

The neighboring biome of the tundra is the boreal forest (taiga). The taiga is a biome that reaches completely across Canada and into the interior of Alaska. The climate is like the tundra in the sense that it has long, severe winters that last up to 6 months. The summers on the other hand are rather short. Although compared to the tundra, the growing season is longer and warmer.

The mean annual precipitation is 15 to 20 inches. Throughout the year the temperatures range from the lows in the winter to highs in the summer. The taiga is also found to be very humid. The kinds of plants that have adapted to this kind of climate include needle leaf, coniferous trees such as spruce, fir, pine, and larch or tamarack. These trees are the dominant plant species of the taiga. Some other types are alder, birch, and aspen. Trees of the taiga are typically shallow rooted due to the poor soils, the rocky conditions, and the discontinuous permafrost. The plants living in this biome have had to make adaptations.

These adaptations consist of needle-like leaves to prevent water loss, conical shape to help shed snow that may weight down and break the branches, and their evergreen color to help photosynthesis to occur. The other types of life found in the forest are that of animals. Some examples of those are lynx, weasel family, snowshoe varying hare, red squirrel, lemmings, voles, elk or wapiti, moose, beaver, wood warblers, finches, sparrows, and ravens. These are just a few of the animals found in this biome. Another biome of the world is the chaparral.

It's found in only 5 places in the world. They are Southern California, South Africa, Western Australia, Southern Europe, and South America. It has mild rainy winters and hot dry summers. The annual rainfall is about 12-24 inches. In this climate, vegetation such as tall bushes and small trees with dark green leaves exist.

Most plants have small, hard leaves that do not fall off in the winter. The leaves are covered with a hard waxy covering, which helps them to burn in hot fire more easily. An adaptation that many plants have in the chaparral is they have an adaptation to fire, which means they actually need fire as a part of their lives. When a forest fire occurs it my kill of more branches but new sprouts and plants grow from the burnt forest. The varieties of the flora are California Lilacs, Scrub Oak, Toyon or Christmas Holly, Mountain Mahogany, Bush Poppy, Holly-leaved Cherry, Redberry, and Sugarbush.

This is just some of the vegetation. Some of the animals consist of squirrels, rabbits, coyotes, mule deer, opossums, raccoons, skunks, foxes, bobcats, rattlesnakes, lizards, frogs, vultures, hawks, golden eagles, peregrine falcons, and condors. Each of these has made unique adaptations to live in this biome. An additional main biome is the tropical rainforest. The tropical rain forest is one of the earth's most distinctive biomes. There are 3 types are subtropical, monsoon, and equatorial.

The climate has mostly warm, humid temperatures. The annual rainfall is approximately 20-30 inches. Depending on the time of year the temperatures vary. Summer temperatures are about 95-100 F and winter temperatures are about 70-80 F. Most tropical rain forests are located between 10 degree N and 10 degrees S latitude.

This makes the climates for that vegetation found there suitable. If you were to explore the entire rainforests you'd find approximately 1500 species of flowering plants and 750 species of ...

Related: south africa, polar bear, flowering plants, alaska, trout

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