the 7 major biomes terrestrial ecosystems. tundra tree-less – has no trees permafrost- a...
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The 7 Major Biomes Terrestrial Ecosystems
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Tundra • Tree-less – has no
trees
• Permafrost- a permanently frozen layer of soil under the surface
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Taiga
• Found South of Tundra
• Biome dominated by cone bearing trees (gymnosperms)
• Long Cold Winters
• Short Summers
• Nutrient Poor Soil
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Temperate Deciduous Forest
• Has trees that lose leaves in the fall/winter.
• Pronounced seasons
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Temperate Grassland
• Dominated by grasses
• Rich Fertile Soil
• Support large grazing animals
• Often converted into farmland.
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Tropical Rain Forest
• Characterized by tall trees• Near equator • Contain 1/5 of known species • Canopy – Tops of the trees • Epiphytes – plants that live on
the branches of trees
Ex: orchid• Poor Soil
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Savanna • Tropical or sub
tropical grasslands.
• They have alternating wet and dry seasons.
• Prolonged periods of drought.
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Desert
• Dry and arid environment.
• Lack of available water. Less than 25 cm of rainfall a year.
• Vegetation is sparse – cactus and low lying shrubs prevalent.
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Mountain Zones
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Polar Ice