Differences between tundras and forests(Adrian Louis)

  
          Did you know that tundras are the coldest biomes in the world?
          Tundra comes from the Finnish word 'tunturi' meaning treeless
          plain. It was noted that it had frost-molded landscapes, extremely
          low temperatures, little precipitation, poor nutrients and short
          growing seasons.          

          Did you know that the first forests weredominated by horsetails,

          clubmosses, and ferns that stood 40 feet tall? It was noted that

          it had much more plants as the tundras have poor nutrients in

          poor soil so the plants cannot survive itincluding the harsh weather

                 

          There can still be some similarities between the tundras and the forests.

          Here are some of the similarities:

• Both are wet places.
• Both recieve rainfall.

Huiyi(differences between Tundra and forest)

Forest:

Tropical rainforests are very wet places, receiving heavy rainfall either seasonally or throughout the year. They are close to the equator and get lots of sunlight and warmth. They are havens for millions of plants and animals.

Tropical rainforests have more kinds of trees than any other forests in the world.

Huge numbers of animals live in rainforests, including microscopic animals, invertebrates, fish, reptiles, amphibians, birds and mammals.

Tundra:

The Tundra is a biome where the tree growth is hindered by low temperatures and short growing seasons.The meaning of the word Tundra is treesless plain.The Tundra is covered in marshes, lakes, bogs and streams during the warm months.

Only 1,700 species of vascular plants can be found there.

Only 48 land mammals can be found, although thousands of insects and birds migrate there each year. There are also a few fish species such as the flatfish. There are few species with large populations. Notable animals in the Arctic tundra include caribou, musk ox, arctic hare, arctic fox, snowy owl, lemmings, and polar bears.

ken's differences between the tundra and the tropical forests

The main  differences between the two climates is not enough rain in tropical wet and dry climates to support rain forests. Tundra climates are dry, with a brief, chilly summer and a bitterly cold winter.Tundra is located on earth's poles, which receive little sunlight making it extremely cold. Little vegetation can become established because of the permafrost that prevents root systems, as well as the winds that clear miles of open land.

Differences between the tundra and the tropical forest(wan xuan)

The tundra is located on Earth poles which receive little sunlight ,making it extremly cold.In contrast,tropical rainforest receive direct and constant sunlight which evaporate large amounts of water into the atmosphere only to drop back down again.

Oo Guoxuan (differences between rainforest and tundra )

 Differences between rainforest and tundra

CLIMATE

Rainforest

• Warm and wet climate
• In most tropical rainforests, it rains everyday.
• Tropical rainforests grow in a narrow zone near the equator
• In an average year in a tropical rain forest, the climate is very humid because of all the rainfall, which amounts to about 250 cm per year.
•  The rain forest has lots of rain because it is very hot and wet.
• A lot of the rain that falls on the rain forest never reaches the ground. It stays on the trees because the leaves act as a shield, and some rain never gets past the trees to the smaller plants and grounds below.

Tundra

• Low temperature
• The climate in a tundra biome consists of freezing cold and dryness in the winter and cold summers.
• The tundra ground is a barren place, often covered with rocks.
• Most water on the tundra is frozen within the soil. (The permanent frozen soil is called permafrost.)
• Summers last for a very short time.
• Winters are very cold.

PLANTS

Rainforest

• Tropical rainforests are home to a huge number of different flora and fauna.
• The main plants in this biome are trees.
• Trees in this climate reach a height of more than 164 feet. They form a canopy. The forest floor is called understory. The canopy also keeps sunlight from reaching the plants in the understory.
• The plants that make up the understory of a rainforest have adapted to the small amount of sunlight that they receive.
• Ferns and mosses do well, along with epiphytes. These are plants that grow on other plants. They can be found growing on branches of tall trees where they can get sunlight.

Tundra

• Trees do not grow there.
• 
  Plants in the tundra are low-growing
• Plants group together to withstand the strong winds and cold temperatures
• They have adapted so that photosynthesis (getting food from sunlight) can occur in the low light and cold temperatures.

ANIMALS

Rainforest

• Rainforests has a rich diversity of animal species.
• Insects make up the largest single group of animals that live in tropical forests.
• Tropical rainforests support the greatest diversity of living organisms on Earth. Although they cover less than 2% of Earth's surface, rainforests house more than 50% of plants and animals on Earth.

Tundra

• Animals that lives in the tundra have special adaptations that allow them to survive the
  extreme temperatures and conditions that are present in a tundra
• Some animals have grown thick fur which turns white in the winter. Others find a place to hibernate during the winter months.
  
  
  
  

Jei Min ( tundra and the forest)

Condition- They're almost completely opposite. Tundra is located on earth's poles, which receive little sunlight making it extremely cold. Little vegetation can become established because of the permafrost that prevents root systems, as well as the winds that clear miles of open land. In contrast, tropical rainforests receive direct and constant sunlight, which evaporates large amounts of water into the atmosphere only to drop back down again. Though rainforests only occupy 3% of the earth, it contains over half of the worlds species - the most diverse biome in the world.



Animals in the tundra- Animals that live in the tundra have special adaptations that allow them to survive the
Polar Bear



extreme temperatures and conditions that are present in a tundra. A good example

of an animal with special adaptations is the Arctic Fox. The Arctic Fox has short ears

and a short, round body with a thick coat to minimize the amount of skin exposed to

the frigid air. There is a low amount of biodiversity in the tundra so fluctuations in

one animal population will effect populations in another. An example of this would be

that if in a certain year there is a lower amount of Lemmings than usual, then the

population of Snowy Owls, who feed mostly on Lemmings, will also decrease.

Animals that live in the tundra-
Caribou
Arctic Fox
Arctic hare
Snowy Owl
Musk Ox
Rock Ptarmigan



Animals in the rainforest-On the forest floor, the lowest layer, live thousands of species of ant, termite, beetle and bug. Butterflies are important rainforest insects. Butterflies feed on nectar, and are important because they pollinate flowers.


Many species of birds live in the canopy layer of the rainforest. The gray parrot is one species of bird that lives in the African rainforest. They can fly very fast and are noisy birds. They can be taught to talk, so they make popular pets. Hornbills are another species of bird in the African rainforest. They eat fruits and insects. The bird in the picture on the left is a hornbill. Both parrots and hornbills make their nests in holes in the trees.

Frogs and toads occupy the rainforest because they like the moist environment. Tree frogs have flat bodies and round toes that help them cling to leaves and branches. Snakes live in the trees and alligators and crocodiles live in rainforest rivers.










    

(Jun Wuen) tundra and forest

  The Arctic tundra is a vast area of stark landscape and is frozen for much of the year. The soil there is frozen from 25–90 cm down, and it is impossible for trees to grow. Instead, bare and sometimes rocky land can only support low growing plants such as moss, heath (Ericaceae varieties such as crowberry and black bearberry), and lichen. There are two main seasons, winter and summer, in the polar tundra areas. During the winter it is very cold and dark, with the average temperature around −28 °C (−18.4 °F), sometimes dipping as low as −50 °C (−58.0 °F).
  The tundra is a very windy area, with winds often blowing upwards of 48–97 km/h However, in terms of precipitation, it is desert-like, with only about 15–25 cm falling per year. During the summer, the permafrost thaws just enough to let plants grow and reproduce, but because the ground below this is frozen, the water cannot sink any lower, and so the water forms the lakes and marshes found during the summer months.
  A forest is an area with a high density of trees. There are many definitions of a forest, based on the various criteria.[1] These plant communities cover approximately 9.4% of the Earth's surface (or 30% of total land area), though they once covered much more in many different regions and function as habitats for organisms, hydrologic flow modulators, and soil conservers, constituting one of the most important aspects of the Earth's biosphere.
  Forests sometimes contain many tree species within a small area (as in tropical rain and temperate deciduous forests), or relatively few species over large areas. Forests are often home to many animal and plant species, and biomass per unit area is high compared to other vegetation communities.