Ecosystem Components

1
Ecosystem Components
2
(No Transcript)
3
(No Transcript)
4
BIOTIC Components of an Ecosystem

• PRODUCERS
• CONSUMERS
• DECOMPOSERS (type of Consumer)

5
PRODUCERS (autotrophs)

• Terrestrial Green plants
• Aquatic Phytoplankton (floating and drifting
  protists cyanobacteria)
• Use SUNLIGHT to make their own food via
  Photosynthesisthe conversion of sunlight energy?
  into Stored/Potential/Chemical energy (Glucose)

6
Photosynthesis
7
(No Transcript)
8
Chemiosynthesis

• Some bacteria can make food without sunlight!
  These specialize producer Bacteria convert
  Hydrogen Sulfide and CO2 into organic compounds
  (like sugar) in Hydrothermal vents powered by the
  heat of the Earth.
• http//oceanexplorer.noaa.gov/edu/learning/player/
  lesson05.html
• http//www.youtube.com/watch?vBXGF3XS-yAI
• http//www.youtube.com/watch?vBLOUFrncG7E

9
CONSUMERS (Heterotrophs)

• --All other organisms in an Ecosystem fall into
  this category. (Decomposers are a TYPE of
  Consumer, technically)
• --Organisms that get their organic nutrition from
  feeding off Producers or other Consumers.

10
Classes of Consumers

• Herbivores
• Carnivores
• Omnivores
• Detritivores (Detritus Feeders ie Bark Beetle,
  Termite)Directly consume fragments of dead
  organic material
• Decomposers (Fungi Bacteria) Digest Complex
  organic compounds in fragments of the organic
  material (in this case, log) into simpler,
  inorganic compoundsplant nutrients in soil.

11
(No Transcript)
12
Cell Respiration

• Both PRODUCERS and CONSUMERS use the process of
  CELL RESPIRATION to release the stored energy in
  organic compounds, such as Carbohydrates
  (glucose) to power their cells.
• In this process, Glucose is converted back into
  Carbon Dioxide and Water as waste products.

13
(No Transcript)
14
(No Transcript)
15

• Matter flows in an ecosystem
• Energy flows in an ecosystem

16
NonLiving Parts of an Ecosystem
17

• Range of Tolerance for a Species
• Threshold Effect
• Limiting Factor Principle in an Ecosystem

18
(No Transcript)