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SUCCESSION
A WebQuest for 10th
Grade Science
Designed by
M.G. Sherlock
msherlock@sd68.bc.ca
Introduction
| Task | Process |
Evaluation | Conclusion
| Credits | Teacher
Page
Introduction
From your lessons
so far, you have learned that ecosystems are in a state of dynamic equilibrium.
Changes are constantly occurring in ecosystems, yet the interactions
among the living organisms with their environment will eventually achieve
a form of stability. The most stable communities, climax communities,
are defined by the plants and animals that will endure until a major
disturbance occurs. Most organisms have requirements that must be present
in order for them to be successful in an area. This could include the
availability of water, nutrients, and sunlight, the amounts and quality
of which depends on organisms that may have lived there in the past.
The
Task Your
task is to create a page (Word document) that will show, with digital
pictures, the progression that will occur during primary succession.
You will also explain, using text, how each stage of succession is important
for the return of the region to its climax community. Your explanations
will include the required biogeoclimactic conditions for the organisms
(plant and animals) found in each stage of succession that you have
included for each photo.
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The
Process You
will work in groups of two. Each person will have specific tasks to
complete.
Person
1: TECHNICIAN/SEARCHER. This person will be responsible for
assembling the word processor page for the group and searching the
web sites for information
Person 2: ANALOG SEARCHER/RECORD KEEPER. This person
will search the text and other paper references to provide information
to the TECHNICIAN/SEARCHER. This person will also keep track of all
the efforts made by the group to complete the web quest. They should
record the urls of all web sites visited and evaluate how good they
were for the quest. They should also record any processes attempted
and sources used. It is essential that this record be kept in as much
detail as possible as it may be the only way for you to explain the
problems you encountered and why you have not completed the quest.
Your final product will be composed
of the following three parts included in your Word Document:
1. Description of area
- Include A picture, a climatograph
and a written description of the conditions in the area of your
climax community
2. A short description
of an event that will lead to the destruction of this area
3. A series of 6 or
more pictures that show (in order) the succession that you
predict will happen during primary succession in this area to return
it to the climax community. Include explanations next to each picture
that list the biogeoclimactic conditions present and the benefits
that the current species will provide for future species.
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How to complete the above three
requirements:
- Take a quick
look through the pictures found on Mr.
Sherlock's T-drive to get ideas for the type of climax community
that your area will eventually achieve. From this search, get a general
sense of the species that came and went, through the processes of
succession, in order for this climax community to be present.
- Construct
a Climatograph typical for this area to show the monthly averages
for precipitation and temperature.
- Describe
an event that will remove all organic material from your area so that
it can then begin the process of primary succession.
- Select
a series of 6 or more pictures from Mr. Sherlock's collections to
show the correct order of succession that will return your area back
into a climax community.
***For
each picture that you select***
(i)
Identify 3 species that are present in the photo and list
the requirements they need to survive (biogeoclimactic conditions).
Give one adaptation that each species has to successfully survive
in this area. You may also include invader species if you can justify
why they might be present.
(ii)
List the benefits these three species will provide to the changing
ecosystem as it moves through the seral stages of succession.
Use these
links to help you:
Species Identification
and habitat descriptions:
- Tree
book
- Use the copies of Pojar and
McKinnon's Plants of Coastal BC and their other reference
books for information on specific mosses, lichens, shrubs and pioneer
species.
Information on
primary succession
New
World Encyclopedia
5. SAVE
your work:
Arrange all
of your images and text neatly in a word document and when you are
finished save your file (using your names) into the "Science
10 Succession" folder in Mr. Sherlock's INBOX
found on his T-Drive.
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Evaluation
Each group will
be evaluated according to the following criteria. The mark will be split
between all participants.
|
Beginning
1 |
Developing
2 |
Accomplished
3 |
Exemplary
4 |
Score |
Construction
of a Climatograph, description of climax community, and a description
of an event that will remove all organic material |
As
for 2 but missing two items |
Same
as #3 but missing one item |
Complete
Climatograph, full description of climax community, description
of event |
Complete
Climatograph, full description of climax community, description
of event,identification of appropriate biome where this could occur |
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Identifies and arranges appropriate images depicting
succession
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Identifies 3 images of stages of succession and places them in
the appropriate order |
Identifies 4 images of stages of succession and places them in
the appropriate order |
Identifies 5 images of stages of succession and places them in
the appropriate order |
Identifies 6 or more images of stages of succession, places them
in appropriate order |
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Analysis of species and biogeoclimactic conditions
from PROCESS step 3, items (i) and (ii)
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Written analysis of 1 species, Descriptions of 1 biogeoclimactic
conditions
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Written analysis of 2 species, Descriptions of 2 biogeoclimactic
conditions
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Written analysis of 3 species, Descriptions of 3 biogeoclimactic
conditions |
Written
analysis of 3 species, Descriptions of biogeoclimactic conditions,
inclusion of species adaptation
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Conclusion
You have now completed your web
quest of SUCCESSION and may now save your assignment. This means that
you now have a basic way to look at the forest over time and predict
the the kinds of patterns that will emerge in primary succession. Use
this information as an analysis tool whenever you are in the forest
to give you an idea of the history of the area and an idea of what is
likely to happen in the next decade.
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Credits &
References
Plants of Coastal BC, Pojar and McKinnon
Forestry 11 resource text compiled by nwilley@sd68.bc.ca
All images by M.Sherlock and Dover Bay School Forestry 11 class spring
2002
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Last updated on
October 8, 2008. Based
on a template from The
WebQuest Page
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