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Ecology I Community Ecology
Questions asked by Community Ecologists ,[object Object],[object Object],[object Object]
Food chains and webs ,[object Object],[object Object],We can represent feeding interactions (and thus energy transfer) in a community:
Classification based on trophic level  ,[object Object],[object Object],Unit 2:  Ecology 1:  Principles of Matter, Energy and LIfe
Aquatic examples Terrestrial examples Detritivores and decomposers Crayfish Water mold Aquatic bacteria Tertiary consumers Cormorant Hawk Secondary consumers Fish Rodent Primary consumers Zooplankton Grasshopper Producers Phytoplankton Grass Detritivores and decomposers Earthworm Shelf fungus Soil bacteria
White oak Caterpillar and other insects on leaves Spider Eastern chipmunk Cedar waxwing Beetles and other insects Blackberry Ticks Eastern cottontail White-tailed deer Rat snake Red-bellied woodpecker Shelf fungus Deer mouse Grasses Earthworm Soil bacteria American toad
Community Disturbance ,[object Object]
ā€œ Naturalā€ Changes ,[object Object],[object Object],[object Object],[object Object]
Human-caused Changes ,[object Object],[object Object],[object Object],[object Object]
Community Succession ,[object Object],[object Object],[object Object],[object Object],[object Object]
Ā 
Secondary terrestrial succession Grasses, herbs, forbs Shrubs, seedlings Shrubs, poplar trees Pines Oaks, hardwoods LE 5-7
Ā 
Community Stability ,[object Object],[object Object],[object Object],[object Object]
Community Organizers ,[object Object],[object Object],[object Object]
Keystone species ,[object Object],[object Object],A ā€œkeystoneā€ holds an arch together.
Keystone species ,[object Object]
Ecosystem Engineer ,[object Object],[object Object],[object Object],[object Object],[object Object]
Foundation species ,[object Object],[object Object],[object Object]
What have community ecologists learned? ,[object Object],[object Object]

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Unit2 Ecology Ic Communities

  • 2.
  • 3.
  • 4.
  • 5. Aquatic examples Terrestrial examples Detritivores and decomposers Crayfish Water mold Aquatic bacteria Tertiary consumers Cormorant Hawk Secondary consumers Fish Rodent Primary consumers Zooplankton Grasshopper Producers Phytoplankton Grass Detritivores and decomposers Earthworm Shelf fungus Soil bacteria
  • 6. White oak Caterpillar and other insects on leaves Spider Eastern chipmunk Cedar waxwing Beetles and other insects Blackberry Ticks Eastern cottontail White-tailed deer Rat snake Red-bellied woodpecker Shelf fungus Deer mouse Grasses Earthworm Soil bacteria American toad
  • 7.
  • 8.
  • 9.
  • 10.
  • 11. Ā 
  • 12. Secondary terrestrial succession Grasses, herbs, forbs Shrubs, seedlings Shrubs, poplar trees Pines Oaks, hardwoods LE 5-7
  • 13. Ā 
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.