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What is Ecology?
Origin of the
      word…”ecology”
 Greek origin

 OIKOS = household

 LOGOS = study of…

  Study of the “house/environment” in which we live.
Ecology is study of interactions between
  non-living components in the environment…
    light
    water
    wind
    nutrients in soil
    heat
    solar radiation
    atmosphere, etc.




     AND…
 Living organisms…
   Plants
   Animals
   microorganisms in soil, etc.
To study Ecology
                 involves…
 For non-living (abiotic)     For living
     Cycles including:      (biotic)
     water                        animal
     Phosphorus                 behavior
     Nitrogen                   Organisms and
      CO2 and O2                   their
     soil analysis, etc.          relationships
                                  population

                                   (studies)
                                  etc.
What is ecol #1
Ecology…
 views each locale as an integrated whole of
  interdependent parts that function as a unit.




                                    caribou
         tundra
 Nonliving

            dead organic
               matter
            nutrients in the
               soil and water.
          Producers
Tundra        green plants
 Consumers
                        herbivores and
                         carnivores

                    Decomposers
                        fungi and bacteria



Tundra


         Caribou
ECOLOGY:

 Levels of
Organization
      - a hierarchy of organization
            in the environment
Levels of organization - Terms
 Biosphere
    Surface of the earth
    Composed of many ecosystems

 Ecosystem
 Includes living and nonliving organism's
    Large or small as we decide
       Backyard, Central Park, butterfly garden outside Ms.
         Sprattler’s room (by tennis courts)
Levels of organization -
                  Terms



 Community – All living populations (diff. species)
   that live in a particular area.
 Population – one species live in one place at one
   time
Levels of organization -
          Terms



 Habitat – Address of an organism, physical
  location of community


 Organism – simplest level of organization
Niche ~ role in the environment



                         Cape May Warbler
                         Feeds at the tips of
                         branches
                         near the top of the tree



Bay Breasted Warbler
Feeds in the middle
part of the tree
                       Yellow-Rumped Warbler
                       Feeds in the lower part of
                       the tree and
                       at the bases of the middle
                       branches
Detritivores
 Feed on dead/ decaying matter
Decomposer
Part II Organisms &
    relationships
Relationships in the
         Environment
Symbiosis - When 2 species live closely together
Predator - Prey =one organisms lives and
     the other organisms dies (-, -)
Lynx and Snowshoe Hare
Predator Prey graph
Parasitism ~ one organisms benefits and
     the other organism is harmed
                 ( -,-)
What is ecol #1
Commensalism ~ One organism           benefits
   and the other organism is not affected
                  (+,o)
What is ecol #1
Commensalism ( +,o)
Mutualism ~    Both organisms
      benefit( +, +)
Crocodile and plover – plover picks
 leeches and food from open croc
              mouth
Part III ~ Feeding
   Relationships
Food Chains~ A pathway for matter and
energy to pass from one organism to another
        Organisms eat and are eaten
Food chain ~ a series of steps in
where organisms transfer energy by
     eating and being eaten
Many organisms eat more than one
    type of food ~ food web
Food Chains Seldom stand Alone
Food Web
a network of feeding interactions of various organisms
                   in an ecosystem
Food webs
 More diverse ecosystems bring more
  stability to an Ecosystem
The End!!

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What is ecol #1

  • 2. Origin of the word…”ecology”  Greek origin  OIKOS = household  LOGOS = study of… Study of the “house/environment” in which we live.
  • 3. Ecology is study of interactions between  non-living components in the environment…  light  water  wind  nutrients in soil  heat  solar radiation  atmosphere, etc. AND…
  • 4.  Living organisms…  Plants  Animals  microorganisms in soil, etc.
  • 5. To study Ecology involves…  For non-living (abiotic)  For living  Cycles including: (biotic)  water  animal  Phosphorus behavior  Nitrogen Organisms and CO2 and O2 their  soil analysis, etc. relationships  population (studies)  etc.
  • 7. Ecology…  views each locale as an integrated whole of interdependent parts that function as a unit. caribou tundra
  • 8.  Nonliving  dead organic matter  nutrients in the soil and water.  Producers Tundra  green plants
  • 9.  Consumers  herbivores and carnivores  Decomposers  fungi and bacteria Tundra Caribou
  • 10. ECOLOGY: Levels of Organization - a hierarchy of organization in the environment
  • 11. Levels of organization - Terms  Biosphere  Surface of the earth  Composed of many ecosystems  Ecosystem  Includes living and nonliving organism's  Large or small as we decide  Backyard, Central Park, butterfly garden outside Ms. Sprattler’s room (by tennis courts)
  • 12. Levels of organization - Terms  Community – All living populations (diff. species) that live in a particular area.  Population – one species live in one place at one time
  • 13. Levels of organization - Terms  Habitat – Address of an organism, physical location of community  Organism – simplest level of organization
  • 14. Niche ~ role in the environment Cape May Warbler Feeds at the tips of branches near the top of the tree Bay Breasted Warbler Feeds in the middle part of the tree Yellow-Rumped Warbler Feeds in the lower part of the tree and at the bases of the middle branches
  • 15. Detritivores  Feed on dead/ decaying matter
  • 17. Part II Organisms & relationships
  • 18. Relationships in the Environment Symbiosis - When 2 species live closely together
  • 19. Predator - Prey =one organisms lives and the other organisms dies (-, -)
  • 22. Parasitism ~ one organisms benefits and the other organism is harmed ( -,-)
  • 24. Commensalism ~ One organism benefits and the other organism is not affected (+,o)
  • 27. Mutualism ~ Both organisms benefit( +, +)
  • 28. Crocodile and plover – plover picks leeches and food from open croc mouth
  • 29. Part III ~ Feeding Relationships
  • 30. Food Chains~ A pathway for matter and energy to pass from one organism to another Organisms eat and are eaten
  • 31. Food chain ~ a series of steps in where organisms transfer energy by eating and being eaten
  • 32. Many organisms eat more than one type of food ~ food web
  • 33. Food Chains Seldom stand Alone
  • 34. Food Web a network of feeding interactions of various organisms in an ecosystem
  • 35. Food webs  More diverse ecosystems bring more stability to an Ecosystem