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Transcript of Artic Tundra-Biome-Project
Images from Shutterstock.com Arctic Tundra Examples: Alaska, Greenland , Russia and Canada GREENLAND Alaska Russia RUSSIA Characteristics Physical Characteristics of the biome: The Arctic Tundra is located mostly in the northern hemisphere. There are two seasons, winter and summer. In summer the sun is present 24 hour a day, however it warns up to 3°c to 12°C. In winter there are several weeks when the sun doesn’t rises and there are extremely cold temperatures form-28°c to -70°c. Precipitation levels are about 6 to 10 inches per year which falls mostly in as snow The lack of rain or snow is because the presence of standing water which is called permafrost. In summer water in the upper layer melts creating bogs and pools, water will not soak into the ground because permafrost blocks it, in winter pools freeze repeating the cycle. Little moisture is lost in evaporation. Desert like climate. In low areas there is lush green vegetation while in higher elevation in high points it is very dry, covered with lichen. Plant Adaptation.
Labrador Tea. PLANT ADAPTATIONS:
-Labrador Tea grows straight up to about 4 feet in the warmer areas of the tundra, but in the colder areas it grows like a carpet over the ground to stay warmer and out of the wind.
-Labrador Tea plants are evergreen. They hold on to their old leaves rather than dropping them. This helps to keep the plants warmer (like layers of clothing)
-The plant has small (1 – 2 inches), narrow leaves that hold the moisture.
-The leaves are smooth on the upper side, with hairs underneath that retain heat and moisture.
-Shallow root systems allow plants to grow in thin soil because deeper soil is always frozen
-Labrador Tea leaves have dark colors to attract more sunshine and heat.
-The fruit is a capsule with many seeds. That way there is a better chance that a few seeds will sprout to become a new plant.
-It has large flowers (compared to stems) to gather heat and to attract pollinators. Arctic Wolf-The Arctic Wolf is a small mammal which is a subspecies of gray wolf but they are smaller, they have shorter muzzles, shorter legs , smaller ears and better eyes.
-This animal is capable to live in environments with -30 degree Celsius and because of such temperature they live alone or in groups of 6 wolves to help one another.
-His diet consist mostly of Musk Oxen, Peary Caribou, Artic Foxes, ptarmigan, lemmings seals, nesting birds and Artic Hares.
-His predators are: other Wolves, Polar Bears and Humans.
-Approximately the Artic Wolf has:
-Body Length: 87-130cm
-Breeding Season: January to March
-Sexual Madurity: 2-3 years.
-Most of the best adaptations the wolfs have are:
-Eyes: Reflective cells in the back of his eyes that allows see under conditions with very low light and in a near- dark one. The eyes help also because it can effectively find and capture prey.
Smaller Ears: In order to loose as little body heat as possible. Less vulnerable to the freezing artic winds and cold nights. It doesn’t affect its extremely keen sense of hearing.
-Shorter Legs: Retain body heat. Don’t have a negative impact on the ability to run and move effectively, also it can keep out of the wind and detect movement from preys more easily.
-Special Coat: Its is best adaptation. It help it to retain heat and to camouflage from predators. http://www.youtube.com/watch?v=o5I_3i6tIhI The fuzz on the underside of the leaves is believed to be an adaptation to retain moisture. The brown hairs comb moisture from ground fog, and act like a sponge to retain this water.