Boardwork 1. What do you suppose the TFS football field looked like 100 years ago. 2. What do you...
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Transcript of Boardwork 1. What do you suppose the TFS football field looked like 100 years ago. 2. What do you...
Boardwork
1. What do you suppose the TFS football field looked like 100 years ago.
2. What do you suppose the TFS football field would look like 100 years from now if left untouched?
3. What do you think the word succession might mean?
Limiting Factors
• Any biotic or abiotic factor that restricts existence, numbers, reproduction or distribution of organisms. Common limiting factors:– Sunlight, climate, temperature, water, food, fire,
soil, space, other organisms
• Imagine if the entire school were locked in our classroom for an entire week. What would limit our survival?
Tolerance
The ability of an organism to withstand fluctuations in biotic
and abiotic environmental factors
(Ability to deal with change)
Succession
Orderly and predictable natural changes and species
replacements that take place in the communities of an
ecosystem
Primary Succession
Takes place on land where there are no living organisms
(barren land)
Example: A forest growing in
an area where there is nothing
Secondary Succession
The Sequence of changes that takes place after an existing
community is severely disrupted in some way
Natural Disruptions: fire, tornado
Human Disruptions: deforestation
https://www.youtube.com/watch?v=9kkWxUgMHfA
What’s the difference?Question Primary Secondary
How much time does it take?
What does it start with?
Is the area old or new?
What type of pioneer species start the process?
What does it end with?