AGRHS Science and Env. Tech
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AGRHS Science and Env. Tech 1 BIOMES: Secondary 4 Chapter 8 Observatory Can you identify these major biomes?
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AGRHS Science and Env. Tech BIOMES: They are divided into 3 major groups: 1. Terrestrial (land) biomes 2. Freshwater biomes 3. Marine biomes Biomes are defined by factors such as plant structures (such as trees, shrubs, and grasses), leaf types (such as broadleaf and needleleaf), plant spacing (forest, woodland, savanna), and climate. Unlike ecozones, biomes are not defined by genetic, taxonomic, or historical similarities. Biomes are often identified with particular patterns of ecological succession and climax vegetation (quasi-equilibrium state of the local ecosystem). An ecosystem has many biotopes and a biome is a major habitat type. A major habitat type, however, is a compromise, as it has an intrinsic inhomogeneity. The biodiversity characteristic of each biome, especially the diversity of fauna and subdominant plant forms, is a function of abiotic factors and the biomass productivity of the dominant vegetation. In terrestrial biomes, species diversity tends to correlate positively with net primary productivity, moisture availability, and temperature.[2] Ecoregions are grouped into both biomes and ecozones. A fundamental classification of biomes is into: 1. Terrestrial (land) biomes 2. Freshwater biomes 3. Marine biomes Definition: Biomes are large regions of the world with distinctive climates, wildlife and vegetation Think of a climate and a typical plant found in that climate and you probably have a type of biome. AGRHS Science and Env. Tech
Transcript of AGRHS Science and Env. Tech
AGRHS Science and Env. Tech 1
BIOMES: Secondary 4Chapter 8 Observatory
Can you identify these major biomes?
AGRHS Science and Env. Tech 2
Definition: Biomes are large regions of the world with distinctive climates, wildlife and vegetation
Think of a climate and a typical plant found in that climate and you probably have a type of biome.
BIOMES: They are divided into 3 major groups:1. Terrestrial (land) biomes
2. Freshwater biomes 3. Marine biomes
AGRHS Science and Env. Tech 3
Biomes: Both abiotic (non-living) and biotic (living) factors are included in an organism's environment. Organisms are effected by their environment, but also organisms can effect their environment.
Animals and plants are adapted for their biome. Change the abiotic factors and usually the results are not very good.
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Abiotic factors determining terrestrial biomesAltitude
Contaminants
Latitude
Longitude
Precipitation
Soil type
Solar energy
Temperature
Water
Winds
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Terrestrial Biomes: Climatograms done by different classes around the world.
This is climatogram is of the Temperate Forests
To view the entire project: http://www2.kpr.edu.on.ca/cdciw/biomes/
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Terrestrial Biomes: The Temperate Forests
What colour do you think represents the temperate forest around the world?
Can you name some the locations of the temperate forest on the map?
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Terrestrial Biomes: The Temperate Forests food chain
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Terrestrial Biomes: The Temperate Forests food chain
Energy and Matter Cycles
Key Terms:
Producers
Consumers
Decomposers
Phostosynthesis
Cellular Respiration
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Terrestrial Biomes: The Temperate Forests food chain
Energy and Matter Cycles
SUN
Solar
Energy
Chemical
Energy
Energy
lost into the environment
Chemical
material
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Terrestrial Biomes: The Temperate Forests food chain
Energy and Matter Cycles in an Ecosystem
Start with 9000 kilocalories of energy
Next level 900 kilocalories are left
Next level 90 kilocalories are left
Next level 9 kilocalories are left
What percentage of energy is kept within the ecosystem each time that you move up of level in the food chain?
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Energy and Matter Cycles
Terrestrial Biomes: The Temperate Forests food chain
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Terrestrial Biomes: The Temperate Forests food chain
Roles in Energy and Matter Cycles
Can you identify the roles of predation and parasitism?
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Biomes: They are very complex and together they support life on Earth.
Like a spider's web, each part of the biomes is linked directly or indirectly. Break one part and the web becomes weaker.
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References
http://www.instepdesign.com/portfolio2006/sub_pages/environsciencethreeone.htm
http://www.physicalgeography.net/fundamentals/9k.html
