Chapter 4 Ecosystems

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Chapter 4Ecosystems Communities

• Section 4-3
• Land Biomes

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Land Biomes

• BIOME
• Particular Physical Environment That Contains A
  Characteristic Assemblage Of Plants And Animals
  Climate.

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Climate Microclimate

• Climate Determined By Two Factors
• Temperature
• Precipitation
• Climate Is Displayed In Diagram Called A
  Climatogram

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Microclimate

• Climate within a small area that differs
  significantly from the climate around it.

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An Oasis is a Microclimate
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The Major Biomes
Key Concept The worlds major Biomes include

1. temperate woodland scrubland
2. temperate forest
3. NW coniferous forest
4. boreal forest
5. tundra

1. tropical rain forest
2. tropical dry forest
3. tropical savannah
4. desert
5. temperate grasslands

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The Major Biomes

• Each defined by unique abiotic factors.
• Especially climate
• Ecological community
• Each Biome Is Separated By Transitional Areas

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Tropical Rain Forest
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Tropical Dry Forest
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Tropical Savanah
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Desert
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Temperate Grassland
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Temperate Woodland Shrubland
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Temperate Forest
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Northwestern Coniferous Forest
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Boreal Forest
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Tundra
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Other Land Areas

• Some areas do not fit neatly into a specific
  biome e.g.
• Mountain Ranges
• Climate changes with elevation
• Polar Ice Caps
• Ecology limited and unique