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Transcript of 1.1 Biomes
The earth is a rotating mass of water, air and land
known as a BIOSPHERE
The biosphere is the largest BIOME
A BIOME is an area that has similar BIOTIC and ABIOTIC components
Biotic components are the living components
Abiotic components are the non-living components
There are 8 terrestrial or landbased
biomes in the world
Five of these biomes exist in Canada
Temperate Deciduous forest
Factors that Influence the characteristics
and distribution of Biomes
Temperature and precipitation, including mist and snow, are two of the most important abiotic factors that influence a biome
For this reason, being able to read a climatograph is essential to studying biomes.
If we know the average precipitation and temperature
of an area we can predict what type of plants and animals
will populate the area.
This will then enable us to determine the biome
Which biome would an area be in if it had an average rainfall of 175cm and an average temperature of 5 degrees celcius.
Other important factors are
and OCEAN CURRENTS
Latitude – the distance measured in degrees north or south of the equator.
Elevation – the height of land above sea level.
The thin atmospheres hold less heat and
are therefore cooler
Mountains also create rain shadows. Windward sides of mountains are moist whereas leeward sides of mountains are dry.
Ocean Currents – these currents also affect temperature and precipitation
Characteristics that enable organisms to survive and reproduce
There are three categories of adaptations
physical features of an organisms body that have a specific function that contribute to the survival of an organism.
physical or chemical events within the body of an organism that enables survival
behaviours of organisms that help them to survive.
Can you determine which biome Calgary is in?
3.6 deg C
What is a biome?
Define the terms Biotic and Abiotic
Read pages 8 - 19
1 -9, 11 and 14. Page 33
What type of interactions occur between
biotic and abiotic components?
What are some of the adaptations that organisms have developed to help them
survive in their ecosystem?
Describe some factors that influence the characteristics and distribution of biomes.
What does the term Biotic mean?
What does the term Abiotic mean?
Biomes closer to the equator are usually hotter and wetter.