Ecology

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Unit 10
Ecology
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Ecology

• The study of the interactions between living and
  non-living things.
• How does one thing affect another?
• All living things rely on other things to
  survive.
• We will learn about what happens when an
  environment undergoes change.

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Biotic living
Abiotic non-living
Organism
Population
Community
Ecosystem
Biosphere
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Organization in the Environment
Rabbits Trees Hawk
Water
Temperature
Sun
Ecosystem
Trees
Rabbits
Hawk
Community
Rabbit
Organism
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The SUN is the main source of energy for ANY Food
Web.
hawk
bird
insect
Niche is the role an organism plays in its
environment.
Oak tree
snake
Pine cone
mouse

• Producer
• Consumer
• herbivore
• carnivore
• omnivore
• scavenger
• Decomposer

Acorns
salamander
bacteria
fungi
Food web shows the flow of energy in an
ecosystem. Food chain shows the flow of energy in
only ONE direction.
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Energy Pyramid

• Increase in
• Population
• Energy

• Decrease in
• Population
• Energy

2nd order consumer
First order consumer
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insect
deer

• 3 food chains
• List producers
• List herbivores
• List carnivores
• List omnivores
• Whats missing?

frog
trout
grass
wolf
raccoon
snake
mouse
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Symbiosis

• Mutualism A relationship where both organisms
  benefit
• Example humans and intestinal bacteria
• Commensalism A relationship where one organism
  benefits and the other is unaffected.
• Example sharks and remoras
• Parasitism A relationship where one organism
  benefits and the other is harmed.
• Example deer and a deer tick

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