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Biomes

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  1. Biomes SNC1L Science

  2. 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!

  3. Major World Biomes • Deserts • Grasslands • Forests: Deciduous Coniferous Mixed & Tropical • Tundra • Also Aquatic & Marine!

  4. 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.

  5. 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

  6. Canada’s Biomes Tundra Boreal • Tundra • Grasslands • Boreal Forests • Deciduous Forest • Coastal Forest • Mountain Coastal Deciduous Mountain Grassland

  7. 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.

  8. 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.

  9. 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!

  10. 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

  11. 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

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