411 Ch2

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Author:
arshifflett
ID:
45652
Filename:
411 Ch2
Updated:
2010-10-28 09:17:31
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Anthro
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Description:
Concepts of Ecology
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  1. Abiotic
    • Non living

  2. autotroph
    • An organism that meets its own nutritional requirement by capturing energy and using it to synthesize molecules that serve its nutitional requirements; also known as a producer

  3. biosphere
    • See ecosphere which is a thin layer of Earth comprising a gigantic network of ecosystems; also referred to as the biosphere.

  4. biotic
    • living

  5. carnivore
    • a meat eater or secondary consumer that obtains its food by eating primary consuemrs (herbivores)

  6. consumers
    • Organisms that obtain their food directly from producers; also known as heterotrophs

  7. cybernetics
    • The study of communications sytems and of system control in organisms and machines

  8. decomposers
    • Organisms that derive their nutirtion from both producers and consumers, usually by utilizing their wastes or remains

  9. ecological community
    • An assemblage of speicies populations occurring together within a partuclar geographic area whose ecological functions and ynamics are in some way interdependent.

  10. ecological system
    • See Ecosystem which is an organizational unit consisting of both living and non living things that occur in a particular place.

  11. ecology
    • The scentific study of the enviornment, including its lviing and nonlivng components

  12. ecosphere
    • The thin layer of Earth comprising a gigantic network of ecosystem; also referred to as a biosphere.

  13. ecosystem
    • An organizational unit consisting of both living an dnon living things that occur in a particular place

  14. energy
    • The capacity to do work


  15. food chain



    The inerlinking of food chains


  16. food web


    The interlinking of food chains


  17. habitat


    A place in which a species lives


  18. herbivore


    A primary consumer, that is, an animal that obtains its food from plants


  19. heterotroph


    An organism whose nutritional needs are met by feeding on other oganismss; also known as a consumer


  20. macroenvironment


    see macrohabitat which is the general habitat in which a species exists (ex hot desert, fresh water pond); also referred to as a macroenvironment.


  21. macrohabitat


    the general habitat in which a speicies exists (hot desert, freshwater pond); also referred to as macroenvironment.


  22. microenvironment


    See microhabitat which is the specific habitat in which a speicies exists ( under rocks in a hot desert); also referred to as a microenvironment. An organism's behavior may significantly modify the conition in its microhabitat


  23. microhabitat


    The specific habitat in which a speicies exists (under rocks in a hot desert); also referred to to as microenvironment. An organism's behavior may significantly modify the conditions in its microhabitat.


  24. niche


    The functional position of a speicies in ecological process-what it does, where it is, and what is done to it.


  25. nutrients


    The stuff of life, including chemical elements an dinorganic and organic compounds


  26. omnivore


    A consumer that derives its nutrition from producers as well as from primary or other secondary consumers


  27. photosynethesis


    The chemical process in which the enrgy of sunligh is employed to convert inorganic to organic compounds


  28. primary consumer


    An organism that obtains its food directly from producers; also known as an herbivore


  29. producers
    • Organisms that capture the energy of th esun in thep rocess of photsynethesis



  30. secondary consumer system



    An organism the obtains its food by eating primary consumers; also known as a heterotroh and as a carnivore.

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