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Major World Biomes Deserts Grasslands Forests: Deciduous Coniferous Mixed & Tropical Tundra Also Aquatic & Marine!
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BiomesSNC1L Science
What are Biomes?
• Large regions of the world with similar• CLIMATE, PLANTS & ANIMALS
• Areas with different biodiversity• They help regulate global climate• Humans live in them & use them for
natural resources, food… sometimes, a little too much!
Major World Biomes • Deserts
• Grasslands • Forests:
Deciduous Coniferous Mixed & Tropical
• Tundra• Also Aquatic &
Marine!
Desert Biome• High Temperatures• Low Precipitation• Short growth season• Poor soil quality• Slow decomposition• Succulent plants, tap
roots, cacti• Reptiles, birds;
mammals with short fur, long extremities.
Tropical Forest Biome• High Temperatures
• High Precipitation• No seasonal change• *Poor soil quality• Fast decomposition• Very tall trees create
a canopy; lower in understory
• Colourful birds & amphibians; well-camoflauged mammals
Canada’s Biomes• Tundra• Grasslands • Boreal
Forests• Deciduous
Forest• Coastal
Forest• Mountain
Tundra
Boreal
Deciduous
Mountain
Coastal
Grassland
Tundra Biome• Low Temperatures• *Low precipitation• V.Short growth
season• Poor soil quality -
Permafrost• Slow decomposition• No trees; mosses,
lichens, small plants• Seasonal colour
change in animals; migrators.
Boreal Forest Biome• Low – Moderate
Temp.• Low precipitation• Short growth season• Acidic soil• Faster decomposition• Conifers, lichens• Hibernating mammals• Animals that can
consume conifer needles & seeds.
Deciduous Temperate Forest• Moderate Temp.
• Moderate precipitation
• 6 mon. growth season• Rich soil• Fast decomposition• Deciduous trees• Migratory birds• Wide diversity of
mammals• Most biodiverse
biome!
Grasslands Biome• Mod. - High Temp.• Moderate
precipitation• 5 mon. growth season• Fairly fertile soil• Fast decomposition• Tall grasses, shrubs• Drought tolerance• Burrowing animals• Reptiles, diverse
mammals & birds
Ecotones• Transitional Areas
where two biomes ‘meet’ & cross over:
• Taiga = T/BF ecotone• Scrub = G/BF
ecotone• Mixed Forest =
ecotone of DF/BF or DF/G