Sustainability of Ecosystems - Prairie Spirit School Division

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Transcript Sustainability of Ecosystems - Prairie Spirit School Division

At the completion of this unit, the students should
be able to answer the following key questions
(as per the Sask. Learning curriculum):
 1. What is sustainability?
 2. How does biodiversity indicate the health of
an ecosystem?
 3. What natural factors affect the stability of an
 4. How do energy and matter flow through an
 5. How do human activities affect the
sustainability of an ecosystem
 6. How can humans in general improve the
sustainability of our ecosystems?
What is Sustainability
Sustainability is the ability to endure
 In Ecology – the ability of an ecosystem
to stay healthy and thrive.
Human impact…
What is your ecological footprint?
 What are some things you can do to
improve your ecological footprint?
 Why should we care?
 How does the information from each of
the quizes compare?
How does our footprint (canadians)
compare to other countries? What ‘s the
difference between the countries i.e.
what makes it worse or better?
Find a place outside, look around.
 How many different plants and animals
do you see. List them (describe/ draw a
picture if you don’t know the name).
 Look at the ground in the area you are
in. How many plants and animals do you
see in the immediate area.
What is biodiversity?
Biodiversity within Ecosystems
Biodiversity of an ecosystem is the
measurement of the number of species
within that ecosystem.
 It involves the dynamic abilities of
species to adapt to and survive in an
ever changing world.
 There are presently over 10 million
different species on Earth.
Each member of an ecosystem is a
valuable participant in the stability of that
 All organisms have a niche, or role to
play within that ecosystem. Whether
they are predators, prey, producers or
decomposers, their position is valuable
to the sustainability of the region.
Even now, biodiversity is disappearing at
an alarming rate. It has been estimated
that nearly 50% of all mammals and
birds could become extinct within the
next century
Vocabulary – define the
ecological footprint