Arctic tundra, Biology

Assignment Help:

The northern most biome on our planet is the arctic tundra. It is a treeless wet circumpolar band between the polar ice caps and the forests to the south. The predominant plants are lichens, grasses, sedges and dwarf woody plants. Despite the lack of trees, animals are found on land, in air and nearby oceans. Similar communities are found at high mountains of all latitudes forming the alpine tundra. The climate is very cold with a short growing season. The soil is frozen for most part of the year and only the top 0.5 meter melts during the short summers in the arctic tundra. The permanently frozen soil below is known as permafrost. In summer you might see huge herds of caribou, flocks of waterfowls and huge swarms of mosquitoes! With such a harsh climate it is not surprising that only a few kinds of plant and animal species are found here though, in the short growing season moss, lichens, some grasses and fast growing plants dominate the landscapes. Swarms of migratory birds invade the tundra in summer to raise their young and fly south as the summers come to an end. Some of the common permanent residents are musk ox, polar bear, grizzly bear, wolves, snowy owl, arctic hare, weasels, minks, etc. Tundra is a very fragile ecosystem as the rate of organic matter decomposition is very slow. On account of harsh climate plants grow very slowly and the tundra tak es a long time to recover from any disruptions.


Related Discussions:- Arctic tundra

Membrane with the intention of delimits the nucleus, Q What is the name of ...

Q What is the name of the membrane with the intention of delimits the nucleus? To which component of the cell structure is that membrane contiguous? The nuclear membrane is als

What is composition, What is Composition? Blood consists of red blood c...

What is Composition? Blood consists of red blood cells, white blood cells, and platelets, suspended in a straw-colored liquid called plasma. If whole blood is centrifuged, abou

Lymph, why is it known as middle man

why is it known as middle man

Define citrate utilization test - imvic test, Define Citrate Utilization Te...

Define Citrate Utilization Test - imvic test? Several microorganisms have the ability to make use of citrate as the sole source of carbon and energy. This ability relies on the

Shrub stage - xerarch, Shrub Stage - Xerarch Sufficient soil is formed...

Shrub Stage - Xerarch Sufficient soil is formed in the herbs stage, for supporting the woody plants or the shrubs. They migrate with the help of seeds or rhizomes from the adj

Determine the assess mobility of prosthesis, Assess Mobility of Prosthesis ...

Assess Mobility of Prosthesis All implant-supported prostheses must be stable.  To detect mobility, place an explorer or scaler under the embrasures and apply gentle pressure i

#sponges, expanciate the process of oxygen and carbon dioxide exchange in s...

expanciate the process of oxygen and carbon dioxide exchange in sponges

Salts responsible for the cellular osmotic regulation, Q. What are the majo...

Q. What are the major mineral salts responsible for the cellular osmotic regulation? The main ions that act in the regulation of the osmotic pressure in tissues and cells are t

Define high density lipoproteins, Q. Define High Density Lipoproteins ? ...

Q. Define High Density Lipoproteins ? High density lipoproteins (HDL) are the smallest of the lipoprotein species and transport approximately 20 to 30 per cent of plasma choles

What is the part of the female reproductive system, What is the part of the...

What is the part of the female reproductive system where fecundation occurs? Fecundation generally happens in the Fallopian tubes but it can also take place within the uterus.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd