Topic 6:
Disturbance & Succession
Learning Goals for Day(s):
What is succession?
Be able to identify the characteristics that distinguish EARLY from LATE successional species
What is disturbance (define)?
Understand the characteristics of a disturbance event - both spatial & temporal characteristics
Distinguish between the human idea of "natural disaster" and ecological disturbance
Understand how disturbance can be considered a matter of perspective; what are the implications of this point of view?
Be able to give examples of disturbance events that fit into the disturbance regime table
What are the effects of disturbance?
Distinguish between primary & secondary succession
SUCCESSION:
What differences do you see in these 2 photographs?
What could have occurred to cause these changes? - Consider both succession & species interactions
Red Rock Canyon, Patagonia Arizona, 1895.
Red Rock Canyon, Patagonia Arizona, 1965.
Question 4:
What are the main types of species interactions?
Worksheet: Species Interactions
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Effect on Organism 2 |
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Effect on Organism 1 |
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Harm |
Benefit |
No Effect |
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Harm
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Benefit
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No Effect
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Disturbance Regime Table:
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HIGH FREQUENCY |
LOW FREQUENCY |
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HIGH INTENSITY
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LOW INTENSITY
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