TERRESTRIAL ECOSYSTEMS

 

 

The interrelations between organisms and environment on the land constitute “Terrestrial Ecology”.

The most important limiting factors of the terrestrial ecosystems are moisture and temperature.

 

 

TUNDRA

The word tundra means a “barren land” since they are found where environmental conditions are very severe. There are two types of tundra- arctic and alpine.

Distribution:

Arctic tundra extends as a continuous belt below the polar ice cap and above the tree line in the northern hemisphere. It occupies the northern fringe of Canada, Alaska, European Russia, Siberia and island group of Arctic Ocean.

On the south pole, tundra is very small since most of it is covered by ocean .

Alpine tundra occurs at high mountains above the tree line. Since mountains are found at all latitudes therefore alpine tundra shows day and night temperature variations.

Flora and fauna:

Typical vegetation of arctic tundra is cotton grass, sedges, dwarf heath, willows, birches and lichens.

Animals of tundra are reindeer, musk ox, arctic hare, caribous, lemmings and squirrel.

They are protected from chillness by the presence of thick cuticle and epidermal hair.

Mammals of the tundra region have large body size and small tail and ear to avoid the loss of heat from the surface.

The body is covered with fur for insulation.

TSPSC  Notes brings Prelims and Mains programs for TSPSC  Prelims and TSPSC  Mains Exam preparation. Various Programs initiated by TSPSC  Notes are as follows:- For any doubt, Just leave us a Chat or Fill us a querry––

Hope we have satisfied your need for TSPSC Prelims and Mains Preparation

Kindly review us to serve even better


TSPSC Mains Test Series 2022

20 Quality mock tests and GS Mains Notes

Mains Test Series and Notes

Mains Printed Notes (With COD)


TSPSC Prelims Test Series 2022

24 Quality mock tests and GS Prelims Notes

Prelims Test Series and Notes

Prelims Printed Notes (With COD)

Subscribe to TSPSC Notes

Never Miss any TSPSC important update!

Join 2,511 other subscribers

error: Content is protected !!