Download Secondary Succession

DO NOW
Date:
3/31
Q: How do ecosystems change over time?
What are the non-living parts of an ecosystem?
ESSENTIAL QUESTION:
How do ecosystems change over
time?
OBJECTIVES:
-Identify Abiotic and Biotic Factors in
an ecosystem
-Discuss their importance
-Observe how the succession plot has
changed over time
Succession Plot
- Go outside and examine succession plot from
the week before
- Make observations along with predictions for
another week
- Note any new growth on the plot along with
comparisons to the undisturbed ground
around it
Outside Expecatations
• -Voice Level 0 in the hallway
• -Voice Level of 1 or 2 outside while you
examine the succession plot
• -Classes are very near the plot, so be mindful
of your volume!
• Stay in one spot in close vicinity to the plot
where you can see and draw
• Do not wander!
Succession Plot
Drawing
Abiotic/Biotic Factors
KEY:
Primary Succession
Secondary Succession
Predictions: What will you observe a week from now?
Week 1:
Week 2:
1000 Year prediction:
ENGAGE: Word Sort
Sort the cards at your table into two
groups:
Living Things
Non-living things
• Biotic and Abiotic Factors
Vocabulary
pg
Word
Definition
EXAMPLE
Abiotic
Factors
All of the non-living parts of an ecosystem
Air, soil, Sun
Biotic
Factors
All of the living parts of an ecosystem
Animals, plants, bacteria
Name That Factor
Name That Factor
Name That Factor
DO NOW
Date: Q: How do ecosystems change over time?
4/1st &
2nd
How do fires impact an
ecosystem? Can they be good
for a habitat? Why or why not?
ESSENTIAL QUESTION:
How do ecosystems change over
time?
OBJECTIVES:
-Identify Primary and Secondary
Succession
-Examine stages of succession after
the eruption of Mt. St. Helens
Intro to Succession
• 4th/5th Period
-Complete Frayer Models for Primary Succession and
Secondary Succession using pages 616 & 617 from
Glencoe Science
-Be prepared to share your facts, examples, or nonexamples
Intro to Succession
• 7th/8th Period
-When Frayer Models are completed, complete
the Introduction to Succession Web Quest
Succession in Nature
• Mount St. Helen's
• As you watch the video, answer the questions
provided
DO NOW
Date:
4/3
Q: How do ecosystems change over time?
What does the term ecological
succession mean?
Succession
Succession in Action
SUCCESSION- CORNELL NOTES pg 143
Main Idea
Summary
Details/Definitions
Flip Book
•
•
•
•
Cut your pieces
Put them in order
Staple once on the side
Write a description of what was is happening
in each scene
Secondary Succession
Secondary Succession
Wind
Climax Community
Pioneer species enter
Start
Secondary Succession
Secondary Succession
Disturbance
Pioneer species begin to grow
Secondary Succession
Secondary Succession
Disturbance
Pioneer species + other
species begin to grow
Secondary Succession
Secondary Succession
Disturbance
A new community of
organisms is being
established
Secondary Succession
Secondary Succession
Most life eradicated; some
seeds may remain in soil
New climax community is
established
End
Bare rock is exposed
due to some type of
disturbance like a
retreating glacier or
volcanic eruption. No
soil is present.
Pioneer species, like
lichens and mosses,
establish themselves
on the rock substrate.
Pioneer species die
and decay, providing
soil and nutrients for
other plant species like
shrubs and small trees.
Small and Large trees
begin to grow, and the
community reaches an
equilibrium or
balance. This results in
a climax community.
Primary Succession: The establishment of new community where none existed before.
• opDA
Pioneer
Species:
Lichens
Climax Community
•Stable, end stage of ecological succession in which
organisms use resources efficiently and balance is
maintained.
Organisms are driven
away or killed by some
type of disturbance,
like a forest fire,
leaving behind only
the soil.
Pioneer species, like
grasses and weeds,
begin to grow from the
soil. Roots and seeds
left over may also
begin to grow again.
Some pioneers species
die and are replace or
outcompeted by other
species like shrubs and
small trees.
Small and Large trees
begin to grow, and the
community reaches an
equilibrium or
balance. This results in
a climax community.
Secondary Succession: The reestablishment of community following disturbance.
Habitat Vocabulary
pg 109
Primary Succession- when an area regrows after
a disturbance has removed all plants and SOIL
Secondary Succession- when an area re-grows
itself after a disturbance has removed all
plants and the soil still remains
Pioneer Species- the first species to start
growing in an area
Climax Community- when an area has grown
into a stable community
Climax Community
•Stable, end stage of ecological succession in which
organisms use resources efficiently and balance is
maintained.
Volcano
Year Zero
All Mt. St. Helens images courtesy
of University of Washington
Forest Fire
All forest fire images
Courtesy of US Forest Service
Rocky Mountain Research Station
Year Eight
Volcano
Forest Fire
Year Twelve
Volcano
Forest Fire
Year Seventeen
Volcano
Forest Fire
Year Twenty
Volcano
Forest Fire
Succession- Short Clip
DO NOW
Date:
4/4
Q: How do ecosystems change over time?
Why is succession beneficial for
some habitats?
ESSENTIAL QUESTION:
How do ecosystems change over
time?
OBJECTIVES:
-Properly identify the order of primary
and secondary succession
Succession- Short Clip
Succession Cards
-Primary Succession
-Secondary Succession
Put the cards in order of the events that will
occur in the ecosystem.
Bare rock is exposed
due to some type of
disturbance like a
retreating glacier or
volcanic eruption. No
soil is present.
Pioneer species, like
lichens and mosses,
establish themselves
on the rock substrate.
Pioneer species die
and decay, providing
soil and nutrients for
other plant species like
shrubs and small trees.
Small and Large trees
begin to grow, and the
community reaches an
equilibrium or
balance. This results in
a climax community.
Primary Succession: The establishment of new community where none existed before.
Organisms are driven
away or killed by some
type of disturbance,
like a forest fire,
leaving behind only
the soil.
Pioneer species, like
grasses and weeds,
begin to grow from the
soil. Roots and seeds
left over may also
begin to grow again.
Some pioneers species
die and are replace or
outcompeted by other
species like shrubs and
small trees.
Small and Large trees
begin to grow, and the
community reaches an
equilibrium or
balance. This results in
a climax community.
Secondary Succession: The reestablishment of community following disturbance.
Mount St. Helens
Mt. St. Helens
Succession Quiz
• Keep Voice at level 0
• You may use any of your notes to help you
answer questions