Ecology: The Biomes

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Ecology The Biomes

• You will understand and explain the difference s
  between Earths major Biomes

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Recall What is the basis for most ecosystems?

• Energy derived from Sunlight is converted to food
  energy
• Organisms that do this are called Primary
  Producers or Autotrophs

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Recall How is energy Transferred?

• Food Energy transferred through predator/prey
  relationships
• Herbivores- eat plants
• Carnivores eat animal tissue
• Omnivores- eat both types of material
• Scavengers- eat dead or decaying organic matter

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Food Relationships produce a structure to the
ecosystem

• Structure is best known as the Trophic Pyramid
• Pyramid design shows both the numbers of
  organisms goes down (by power of 10) as you go up
  pyramid
• It also shows how energy is lost through each
  transition between levels

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TROPHIC PYRAMID
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So What is a Biome?

• Biome is the precise habitat of organisms as
  defined by its Abiotic Factors (primarily
  vegetation and precipitation amounts for land and
  amount of light, salinity, pressure and depth for
  aquatic environments)

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4 Basic Land Biomes

• Forests - dominated by tree growth
• Tropical
• Deciduous (Temperate)
• Taiga (Coniferous Trees)
• Temperate Forest Biome
• Tropical Forest

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4 Land Biomes

• Grasslands- dominated by grasses
• Savannah (tropical)
• Temperate
• Grassland Biome
• Savannah Biome

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4 Land Biomes

• Tundra- treeless, and cold with permafrost
  year-round
• Arctic- Extreme Northern area
• Alpine- mountain regions
• Tundra Biome

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4 Land Biomes

• Deserts dominated by lack of rainfall
• Hot n Dry traditional deserts
• Coastal -found near coastlines
• Semi-Arid- Warm summers, cool winters
• Cold- Antarctica
• Desert Biome

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2 Basic Aquatic Biomes

• Freshwater- low salinity, created from Run off
  from land
• Rivers and Streams
• Ponds and Lakes
• Wetlands
• Aquatic Biomes

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2 Aquatic Biomes

• Marine- largest Biome on Earth
• Intertidal/Coastal
• Estuaries (rivers enter oceans)
• Pelagic
• Deep Water
• Aquatic Biomes