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Tundra Biome

science research project on a tundra biome

Alice Curtis

on 17 December 2010

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Transcript of Tundra Biome

Tundra Also called Arctic Tundra and Alpine Tundra Found in high altitude mountains, encircles North Pole and extends South until the coniferous forests. latitudes 55* to 70* N Temperatures range from -70* C to 12*C Average precipitation is about 15-25 cm Soil: consists of gravel
and finer material with
permafrost (frozen subsoil)
low, swampy, soggy, ground, but one of the driest biomes! PLANT LIFE low shrubs, sedges,
reindeer mosses, liverworts,
wildflowers, and willows Adaptations:
short and grouped together,
carry photosynthesis at
low temperatures and low light,
and generally use budding and division
pikas, lemmings, voles, caribuo, arctic hares, marmots, mountain goats, sheep, elk, cod, flatfish, salmon, and trout CARNIVORES
snowy owls, arctic fox, wolves, and polar bear Adaptations:
breed and raise young quickly (summer), insulation from fat, hibernation, migration, and thick fur ECOLOGICAL RELATIONSHIP
lichen is a mutualistic relationship
between fungus and algae FOOD CHAIN lichens lemmings arctic fox HUMAN INTERFERENCE
Exxon Valdez oil spill

People have immigrated to tundra areas to work in mines and oil rigs

Towns have disturbed animal feeding grounds

Pesticides kill insects migrating birds need for food

Pollution from mining and drilling ENDANGERED SPECIES
Arctic fox
Polar bears
Musk ox
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