An Introduction to Biomes

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  • What are the key words in this definition? Ecosystem is a community of interdependant organisms and their physical environment that they inhabit
  • Play the locator game - http://www.purposegames.com/game/1445
  • Play the locator game - http://www.purposegames.com/game/1445
  • Main factors are climatic and terrain – most important are temperature and precipitation
  • Precipitation to Evaporation Ratio
  • An Introduction to Biomes

    1. 1. Definition Biomes are similar kinds of ecosystems found around the world; biomes are characterized by their physical conditions (abiotic factors e.g. rainfall and temperature throughout the year) and the communities of organisms that interact in these conditions.
    2. 2. Where are they located? Play the Game http://www.purposegames.com/game/1445 Extension: What is the difference between a biome, an ecosystem and a habitat
    3. 3. Where are they located?
    4. 4. What effects their location? Latitude • Altitude Climatic Conditions • Solar radiation • Effect of seasons • Atmospheric circulation • Evaporation
    5. 5. Latitude & Altitude
    6. 6. Solar Radiation
    7. 7. Effects of seasons
    8. 8. Atmospheric Circulation
    9. 9. Limiting factors – Temperature & Precipitation
    10. 10. Spot Quiz Wettest place on Earth Hottest place on Earth Driest Place on Earth Coldest place on Earth
    11. 11. Effects of Evaporation Ratio between Precipitation (P) & Evaporation (E) • P>E → Increase leaching and loss of nutrients • P<E → Increase in salinity • P=E → Soil rich and fertile
    12. 12. Tundra Temperate Forest Boreal Forest Subtropical Desert Tropical Rain Forest Know your Biome
    13. 13. Key Learning • What is a Biome? • Types of Biomes & their location? • Factors effecting their distribution? – Climatic e.g. solar radiation, temperature, rainfall, evaporation – Terrain Future Learning – Key characteristics of individual biomes, adaptations, types of productivity (Net, Gross, Primary, Secondary)

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