Succession Trophic Levels Food Webs Biomes Tropical Rain

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Ecology

• Succession
• Trophic Levels
• Food Webs
• Biomes

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Ecological Successions

• Series of predictable changes that occur over
  time in response to disturbances.
• Two types
• Primary Occurs on new ground (little/no soil)
• Glacier melt
• Volcanic lava/ash
• Secondary
• Disturbance over existing soil (ex. old farmland)

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Primary Succession

• Occurs where no ecosystem was before.
• On rocks, cliffs
• Soil building occurs

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Primary Succession

• Soil particle sizes how they are classified

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Primary Succession

• Volcano addingnew land to Hawaii

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Primary Succession

• Lichens begin growing

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Mosses on rocks
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• Primary succession can be seen happening on the
  sidewalks.
• If left alone, even NYC would return to a cement
  filled woodland.

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Primary Succession

• Grasses and other species begin to cover in
  subsequent years

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Primary Succession

• Grasses and other species begin to cover in
  subsequent years

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Secondary Succession
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Secondary Succession
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Secondary Succession
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Secondary Succession
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Secondary Succession
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Secondary Succession
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Secondary Succession
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Secondary Succession
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Secondary Succession
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Trophic Levels
Tertiary Consumers(Carnivores eat carnivores)
Top two also contain Omnivores (Eat plants and
animals)
Secondary Consumers (Carnivores eat herbivores)
Primary Consumers (Herbivores eat plants)
Producers (Plants)
Decomposers (bacteria and fungi)
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Trophic Levels

How the numbers of these type organisms actually
compare to each other.




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Energy Flow
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Food Webs
An example of a Food Web Shows how many
organisms are interconnected by different paths.
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Food Chain
Food chains are different from food webs.
Chains only show ONE path of energy flow.
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Food Chain
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Food Webs
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Food Webs
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Biomes
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Biomes
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Biomes

• Tropical Rain Forest

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Biomes

• Tropical Rain Forest
• Tropical Dry Forest

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Biomes

• Tropical Rain Forest
• Tropical Dry Forest
• Savannah

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Biomes

• Tropical Rain Forest
• Tropical Dry Forest
• Savannah
• Desert

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Biomes

• Tropical Rain Forest
• Tropical Dry Forest
• Savannah
• Desert
• Grassland

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Biomes

• Tropical Rain Forest
• Tropical Dry Forest
• Savannah
• Desert
• Grassland
• Temperate Woodland/shrubland

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Biomes

• Tropical Rain Forest
• Tropical Dry Forest
• Savannah
• Desert
• Grassland
• Temperate Woodland/shrubland
• Temperate Forest

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Biomes

• Tropical Rain Forest
• Tropical Dry Forest
• Savannah
• Desert
• Grassland
• Temperate Woodland/shrubland
• Temperate Forest
• NW Coniferous Forest

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Biomes

• Tropical Rain Forest
• Tropical Dry Forest
• Savannah
• Desert
• Grassland
• Temperate Woodland/shrubland
• Temperate Forest
• NW Coniferous Forest
• Taiga

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Biomes

• Tropical Rain Forest
• Tropical Dry Forest
• Savannah
• Desert
• Grassland
• Temperate Woodland/shrubland
• Temperate Forest
• NW Coniferous Forest
• Taiga
• Tundra