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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 ______________________________
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_____________________________________________________.
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BIODIVERSITY AND SUSTAINABILITY
NOTE FRAMES
SUSTAINABILITY
- is the ability to maintain __________________ processes over
long period of __________.
- ecological processes include: ______________________________
______________________________________________________
______________________________________________________
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_____________________________________________________.
- 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: __________________________________
______________________________________________________
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_____________________________________________________.
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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
and ecosystems
.
genes
, species
- maintains the health of the earth and its people.
- provides us with
food
our
economy .
,
medicine
- it tells us a lot about the health of the
and contributes to
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
periods of time .
ecological
processes over long
- ecological processes include: biogeochemical cycles, evolution,
food chains and webs, population dynamics, succession .
- is the ability of an ecosystem to maintain its structure
function over time in the face of external stress .
- is strongly linked to ecosystem
and
health .
- the more sustainable an ecosystem is, the healthier
because it can deal with external stress better.
it is
- 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
of that ecosystem.
- higher or more biodiversity =
- lower or less biodiversity =
more
less
sustainability
sustainable
sustainable
- high biodiversity in an ecosystem means that there is a great
in that ecosystem.
variety of genes and species
- 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
and economy .
food
,
medicine
- 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 .
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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)
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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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