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Ecosystem

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Junhel Dalanon
Junhel Dalanon
FormationTechnologie
1  sur  21
 
What we will learn? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Some definitions ,[object Object],[object Object],[object Object]
What is an ecosystem? ,[object Object],[object Object]
Ecosystem Services ,[object Object],[object Object],[object Object],[object Object],[object Object]
Ecosystems: Fundamental Characteristics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Abiotic components: ,[object Object],[object Object],[object Object],[object Object]
BIOTIC components ,[object Object],[object Object],[object Object],[object Object],[object Object]
Modified from: General Ecology , by David T. Krome Trophic level : All the organisms that are the same number of food-chain steps from the primary source of energy
Trophic Levels ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Trophic Levels Found on an Energy Pyramid ,[object Object],[object Object],Source: corpuschristiisd.org/user_files/91702/Ecosystem.ppt
Trophic Structure Reminder ,[object Object],[object Object],[object Object]
Trophic Structure Reminder ,[object Object]
Biomass ,[object Object],[object Object],[object Object],[object Object]
Trophic Structure Reminder ,[object Object],[object Object],[object Object],[object Object]
Food Chains ,[object Object],[object Object],[object Object]
Example of a Food Chain
Food Webs ,[object Object]
Food web of a hot spring © 2003 John Wiley and Sons Publishers
Fig 6.5 Food web of the harp seal. © 2003 John Wiley and Sons Publishers
Ecology is The study of the distribution and abundance of organisms, AND the flows of energy and materials between abiotic and biotic components of ecosystems.

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Ecosystem

  • 1.  
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9. Modified from: General Ecology , by David T. Krome Trophic level : All the organisms that are the same number of food-chain steps from the primary source of energy
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.
  • 17. Example of a Food Chain
  • 18.
  • 19. Food web of a hot spring © 2003 John Wiley and Sons Publishers
  • 20. Fig 6.5 Food web of the harp seal. © 2003 John Wiley and Sons Publishers
  • 21. Ecology is The study of the distribution and abundance of organisms, AND the flows of energy and materials between abiotic and biotic components of ecosystems.

Notes de l'éditeur

  1. Source: www.csun.edu/science/scale/4th_grade/ppt/energy_ecosystem.ppt
  2. Ecosystem Services: Benefits Supplied to Human Societies by Natural Ecosystems. Issues in Ecology . No. 2, Spring 1997.
  3. Source: www.csun.edu/science/scale/4th_grade/ppt/energy_ecosystem.ppt
  4. http://eeb.bio.utk.edu/weltzin/GenEcol03/Lecture/lc_11-18-03_ecosystems.ppt ecological pyramid (alt. pyramid of numbers, Eltonian pyramid) The concept that in most food chains , the number of individuals decreases at each stage, with huge numbers of tiny individuals at the base and a few large individuals at the top, as displayed by millions of plankton , a moderate number of large fish, and a few eagles.
  5. http://eeb.bio.utk.edu/weltzin/GenEcol03/Lecture/lc_11-18-03_ecosystems.ppt
  6. http://eeb.bio.utk.edu/weltzin/GenEcol03/Lecture/lc_11-18-03_ecosystems.ppt
  7. Fig 6.2 Food web of a hot spring.
  8. Fig 6.5 Food web of the harp seal.