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					  BIODIVERSITY AND SUSTAINABILITY

                  NOTE FRAMES
BIODIVERSITY
    - is a contraction of the phrase “ ________________ diversity”.

    - means the richness and variety of life – of _______________,
      ______________ and _________________.

    - maintains the ____________ of the earth and its people.

    - provides us with __________, _______________ and contributes
      to our _______________.

    - tells us a lot about the health of the __________________.
    - the ______________ the variety of species, the healthier the
      biosphere is. This is because ______________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      _____________________________________________________.


OTHER NOTES:




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  BIODIVERSITY AND SUSTAINABILITY

                  NOTE FRAMES
SUSTAINABILITY
    - is the ability to maintain __________________ processes over
      long period of __________.
    - ecological processes include: ______________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      _____________________________________________________.
    - is the ability of an ecosystem to maintain its _____________ and
      ______________ over time in the face of ___________________.
    - is strongly linked to ecosystem ______________.
    - the more sustainable an ecosystem is, the _______________ it is
      because it can deal with ______________________ better.
    - limiting factors include: __________________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      _____________________________________________________.


OTHER NOTES:




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  BIODIVERSITY AND SUSTAINABILITY

                   NOTE FRAMES
BIODIVERSITY AND SUSTAINABILITY
    - the biodiversity of an ecosystem contributes to the _____________
      of that ecosystem.
    - higher or more biodiversity = __________ sustainable.
    - lower or less biodiversity = ____________ sustainable.
    - high biodiversity in an ecosystem means that there is a great
      variety of ___________ and ____________ in that ecosystem.
    - a great variety of ___________ and ___________ means that the
      ecosystem is better able to carry out natural processes (such as
      ____________________________, ______________________,
      ____________________, _____________________ ) in the face
      of external stress.
    - for example: ___________________________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      _____________________________________________________.
    - the more sustainable an ecosystem is, the better it is for the
      ________________________ and for ______________.
    - people use ecosystems as sources of ___________, ____________
      and ____________________.
    - thus, it is in everyone’s best interest to increase the sustainability
      of ecosystems. We can do this by: _________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      ______________________________________________________
      _____________________________________________________.




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  BIODIVERSITY AND SUSTAINABILITY

                   NOTE FRAMES
EXAMPLE: Lake Winnipeg Ecosystem
     - the greater the variety of genes and species, fish and animals in the
       Winnipeg ecosystem, the more __________________ it has.
     - higher biodiversity will increase the ecosystem’s _____________.
     - this is important because: _________________________________
       ______________________________________________________
       ______________________________________________________
       ______________________________________________________
       ______________________________________________________
       ______________________________________________________
       ______________________________________________________
       ______________________________________________________
       ______________________________________________________
       _____________________________________________________.




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  BIODIVERSITY AND SUSTAINABILITY

                   NOTE FRAMES
                           (ANSWERS)
BIODIVERSITY
    - is a contraction of the phrase “ biological      diversity”.

    - means the richness and variety of life – of      genes     , species
      and ecosystems       .

    - maintains the health of the earth and its people.

    - provides us with food           ,   medicine      and contributes to
      our    economy .

    - it tells us a lot about the health of the   biosphere .
    - the greater the variety of species, the healthier the biosphere is.
      This is because       more species equals more links in food
      chains/webs which means that they are more stable, more plants
      equals more food and oxygen for other animals, more genes equals
      better chances for survival through adaptation and a variety of
      ecosystems equals more habitat for different species     .




OTHER NOTES:




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   BIODIVERSITY AND SUSTAINABILITY

                    NOTE FRAMES
                           (ANSWERS)
SUSTAINABILITY
    - is the ability to maintain    ecological      processes over long
       periods of time .
      - ecological processes include: biogeochemical cycles, evolution,
        food chains and webs, population dynamics, succession .
      - is the ability of an ecosystem to maintain its structure     and
        function over time in the face of external stress .
      - is strongly linked to ecosystem       health .
      - the more sustainable an ecosystem is, the healthier        it is
        because it can deal with external stress better.
      - limiting factors include: human activities and natural disasters
        such as deforestation, tornadoes, floods, pollution, etc .




OTHER NOTES:




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   BIODIVERSITY AND SUSTAINABILITY

                     NOTE FRAMES
                             (ANSWERS)
BIODIVERSITY AND SUSTAINABILITY
    - the biodiversity of an ecosystem contributes to the         sustainability
       of that ecosystem.
      - higher or more biodiversity =      more    sustainable
      - lower or less biodiversity =     less   sustainable
      - high biodiversity in an ecosystem means that there is a great
        variety of genes and species         in that ecosystem.
      - so a great variety of genes and species means that the
        ecosystem is better able to carry out natural processes (such as
        biogeochemical cycles, population dynamics, evolution,
        succession ) in the face of external stress.
      - for example:     more species in an ecosystem equals more links
        in the food web (more stable), more plants to help with
        biogeochemical cycles and more genes available for succession
        and evolution .
      - the more sustainable an ecosystem is, the better it is for the
        environment and for people .
      - people use ecosystems as sources of        food    ,     medicine
        and economy .
      - thus, it is in everyone’s best interest to increase the sustainability
        of ecosystems. We can do this by: recycling, reusing, caring for
        the environment, taking only the surplus of populations when
        fishing or hunting, reducing pollution, etc.




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   BIODIVERSITY AND SUSTAINABILITY

                    NOTE FRAMES
                            (ANSWERS)
EXAMPLE: Lake Winnipeg Ecosystem
    - the greater the variety of genes and species, fish and animals in the
      Winnipeg ecosystem, the more biodiversity it has.
      - the high biodiversity will increase this ecosystem’s sustainability.
      - this is important because: people rely on this ecosystem for many
        things such as the land and plants for food and revenue, water and
        landscape for tourism and revenue, fish for food and commercial
        use (revenue from sales of fish, boats and fishing related
        equipment and materials), and nutrients from biogeochemical
        cycles .




                              Page 23 of 25
   BIODIVERSITY AND SUSTAINABILITY

                                 TEST
Answer all questions in your own words – marks will be lost if answers
are simply written as memorized. GOOD LUCK! (13 marks)
1) What is biodiversity? (3 marks)




2) What is sustainability? (3 marks)




3) How does species biodiversity contribute to an ecosystem’s
   sustainability? (5 marks)




4) Why is it in everyone’s best interest to increase the sustainability of
   ecosystems? (2 marks)




                                Page 24 of 25
   BIODIVERSITY AND SUSTAINABILITY

                    TEST ANSWERS
Answer all questions in your own words – marks will be lost if answers
are simply written as memorized. GOOD LUCK! (13 marks)
1) What is biodiversity? (3 marks)
In their own words: Biodiversity is the variety of living things, genes, species
and ecosystems.


2) What is ecosystem sustainability? (3 marks)
In their own words: Ecosystem sustainability is the ability of an ecosystem to
maintain its ecological processes over long periods of time in the face of
external stress.


3) How does species biodiversity contribute to an ecosystem’s
   sustainability? (5 marks)
In their own words: Species biodiversity contributes to ecosystem
sustainability in several ways. Higher biodiversity means that there is a
greater variety of genes and species in an ecosystem. More genes and
species means that the ecosystem can carry out its ecological processes
better. For example, more genes means that evolution and succession
occurs more easily, and more species means that food webs are more stable.
Also, a greater variety of plants will make biogeochemical cycles more
stable.


4) Why is it in everyone’s best interest to increase the sustainability of
   ecosystems? (2 marks)
In their own words: Because people depend on ecosystems for food,
medicine and economy/revenue. When an ecosystem is sustainable it is able
to provide these resources for long periods of time.




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