an island just created by volcanic activity What would it look like What is the ground made out of Can plants grow on this island Discuss within your group How might the island eventually support life ID: 655169 Download Presentation
an island just created by volcanic activity. . What . would it look like? . What . is the ground made out of? . Can . plants grow on this island? . Discuss within your group . “How might the island eventually support life?”.
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Presentation on theme: "Ecological Succession Imagine"— Presentation transcript:
an island just created by volcanic activity.
would it look like?
is the ground made out of? Can plants grow on this island?
Discuss within your group
“How might the island eventually support life?”
1. What is ecological succession? 2. What
are the two
of ecological succession?
3.What is a “pioneer species?” Give an example.4.What type of succession is occurring since the 2011 Texas wildfires? Explain.
the “Student Guide” on ecological succession and then answer the following questions in complete sentences in your biology notebook.
The Bastrop fire in 2011 was
the costliest and most destructive fire in the history of Texas. The devastating fire scorched 32,400 acres of land, consuming four-story tall pines, snakes, wildflowers, and thousands of other plant and animal species.
exist in Bastrop County after many years of succession?
Even though this fire caused mass destruction, it gave ecologists an opportunity to study succession in action. Foresters in the area state that the Lost Pines forest in Bastrop County will eventually regenerate, but this process will be slow. In other words, the process of succession will not be complete within the lifetime of the people who live there. Already new grasses have emerged, along with small wildflowers. Insects are back on the scene for pollination. The
is many years away, but the process of succession is moving forward.
In your notebook, create a Venn diagram. Use the descriptors on the right
contrast primary and secondary succession:
a) Can reach a climax community
b) Forms on exposed rock c) No soil d) Organisms are currently there e) Pioneer species will emerge f) No previous living organisms living there g) Most common type Ecological Successionh) Occurs after volcanic eruptions i) Occurs after a hurricane j) Occurs with glaciers k) Occurs after a wildfire l) Gradual change in the environmentPrimary Both SecondarySuccession Succession
Can reach a climax community b) Forms on exposed rock c) No soil d) Organisms are currently there
emerge No previous living organisms living there
g) Most common type Ecological SuccessionOccurs after volcanic eruptions i) Occurs after a hurricane j) Occurs with glaciers k) Occurs after a wildfire Gradual change in the environment
) Forms on
exposed rock c) No soil
f) No previous living organisms living there h) Occurs after volcanic eruptions j) Occurs with glaciers d) Organisms are
) Most common
) Occurs after a
) Occurs after
) Can reach
Lab Table 1
Lab Table 2
Lab Table 3
Lab Table 4
Lab Table 5
Break into 6 equal lab groups
Lab Table 6
Each station has a Student Reference Sheet describing one example of Ecological Succession and a set of questions or procedures you need to follow.
Complete the questions/procedures in your biology notebook using complete sentences and detailed drawing/graphics
You will have 5 minutes at each station to complete the activity.
Succession is Very Predictable
It is the natural changes and species replacement that takes place in the communities of an ecosystem.
Succession occurs in stages with different species of plants and animals at each stage because the conditions of that
stage are suitable for
but not others
takes place on land where there are no previous living organisms
break down barren rock into useable soil.
New soil makes it possible for
(weeds and ferns)
to move into the community.
Stable mature community
As soil builds, seeds carried by wind or water allow bushes and grass to grow.
is the sequence
severely damaged in some way
Deep fresh water, no rooted plants because of lack of light in deep water.
Sediments get carried into the pond allowing rooted submerged and floating plants to start growing.
Sedimentation continues, and reeds and grasses develop around the edge of the pond trapping more sediments.
A marsh community builds up around the pond. Reeds take over more of the pond as more silt builds up.
As soils around the edge begin to dry, tree species such as willows begin to grow
In a fresh
In a fresh water pond
What would you expect to happen if the lake went completely dry?
Volcano erupting in the ocean creating a new island. Primary or Secondary?
Fires near Possum Kingdom lake. Primary or Secondary ?
Path behind a glacier. Primary or Secondary?
Answer the following Questions?
If you hiked through a patch of land that contained a pine forest into an area that contained only ferns, shrubs, and grasses, would you be moving from an younger to an older community or an older to a younger community?
Answer the following Questions?
Which community would support the greatest number and diversity of organisms the pioneer community, one of the intermediate communities or the climax community? Be ready to explain your answer.
The climax community is very stable due to the number and diversity of the organisms that live there.
What type of succession would take place if all the water from the pond evaporated and the pond went dry?