Demonstrating Primary and Secondary Succesion

Transcription

Demonstrating Primary and Secondary Succesion
Hemingway
Name:
Demonstrating Primary and Secondary Succesion
How are the stages of succession similar? How are they different?
Part 1
Using pg 118, choose either a pond or an ocean sand dune to illustrate succession.


You will create a 7 panel storyboard to show the primary succession
Include a time frame
Part 2
Modelling Secondary succession
Imagine that a flood, fire or tsunami completely wiped out a mature community.
 Illustrate the series of events that occur at:
o 10 years
o 100 years
o 300 years
Part 3:
Write a paragraph to describe how your ecosystem progressed through the stages of
seondary succession after the natural disaster. In your answer include changes of
plant/animal communities, pioneer species, biodiversity and mature community.
Hemingway
Name:
Pond Succession
Sand Dune Succession
Micro organisms carried by wind and
insects are deposited in the water.
Micro organisms die and form a layer of
muck on the pond bottom
Water plant fragments transported by
birds and wind take root in the muck
The increase in decaying organism create
more organic matter on the pond bottom
in which cattails and lilies take root
Water lilies and cattails die off creating
more organic matter
Water becomes shallower, grasses and
small shrubs move in
Fish and other animals carried by streams,
birds or other animals move in
Nutrients obtained from decaying
seaweed
Decaying vegetation create soil
Soil can hold water so lichens and mosses
can grow
Grasses that can tolerate salt spray from
the ocean can grow
Grasses help anchor the soil
Shrubs can grow because of a increased
amount of soil
A forest of white spruce eventually grows
Hemingway
Name:
Hemingway
Name: