Succession 3
Specification point:
3.4.7: Ecosystems are dynamic systems usually moving from
colonisation to climax communities in the process of Succession.
- Describe what conservation is
- Discuss the arguments for and against conserving
certain species
- Explain how managing succession help to conserve
succession
Quick succession re-cap
• 1-10 on the scrap paper:
1. What is succession?
2. What is a pioneer species?
3. What is a climax community?
4. What causes the variety of living
things to change in succession?
5. What is a seral stage?
6. Explain the differences between
primary succession and secondary
succession
7. What is the relationship between
succession time and the amount of
variation and biomass?
Outcomes:
Describe what
conservation is
Discuss the
arguments for
and against
conserving
certain species
Explain how
managing
succession help to
conserve
succession.
Conservation:
https://www.youtube.com/watch?v=eYuK
uLG_jRg
• Conservation is….
Outcomes:
Describe what
conservation is
Discuss the
arguments for
and against
conserving
certain species
Explain how
managing
succession help to
conserve
succession.
Match up
• Which of these are reasons
you want to conserve species
and reasons not to conserve
species?
High diversity of
species have a
large gene pool
which provides
living things with
unique features.
Some varieties
of pests are
destroying
cropland and
food resources.
There is an
ethical
implication in
conservation
Large diversity
increases
likelihood of
finding new
medicines from
plants and
resources for
industrial
products.
Large diversity
increases the
food resources
available to
other living
things including
humans.
Some
environments
provide optimum
conditions for
some pathogenic
organisms
Outcomes:
Describe what
conservation is
Discuss the
arguments for
and against
conserving
certain species
Explain how
managing
succession help to
conserve
succession.
Explain situations when
we will
need
Why
manage
to manage/stop succession?
Reed-beds appear early on in the
succession of farmlands and are
quickly replaced by willow/alder scrub
as the conditions change.
Reed-beds are sometimes used in the
pharmaceutical industry.
• Reed-beds should be conserved
and so the existing habitat needs to
be managed before its conditions
change.
• If the conditions do change we fail
to conserve the reed-beds
• Human management could
maintain the conditions and so
maintain the species diversity.
succession?
Outcomes:
Describe what
conservation is
Discuss the
arguments for
and against
conserving
certain species
Explain how
managing
succession help to
conserve species.
Plenary:
Write 2 exam questions. Make
them challenging. Do not write the
answers:
Explain, Analyse, Evaluate.
Compare
Homework sheets:
Access: Succession
Tough: Saltmarsh Succession
Outcomes:
Describe what
conservation is
Discuss the
arguments for
and against
conserving
certain species
Explain how
managing
succession help to
conserve
succession.