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Ecological Succession. Succession. 11D: Describe how events and processes that occur during ecological succession can change populations and species diversity. (I can describe the process of succession and explain how events can change populations and species diversity).
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Succession • 11D: Describe how events and processes that occur during ecological succession can change populations and species diversity. • (I can describe the process of succession and explain how events can change populations and species diversity)
Explain what is happening in this picture. Be as descriptive as possible.
SKETCH how will this landscape if left alone will *change* over 50 years? 1 yr 30 yrs 50 yrs 5 yrs
Class discussion Which do you predict will take longer to turn into an environment that can sustain large life? Why would that one be the one that will take longer? http://www.youtube.com/watch?v=AWwe0udewD8
SUCCESSION • Any change in a plant communities over time is called a(n)_________________ • 2. A slow and gradual change (succession) in an area that once was nothing but rock is_________ • 3. A relatively quick gradual change (succession) in an area after a natural disaster has destroyed an area is ___________ • 4. The final stable state of a succession is called the _______________ • 5. The first organism in a succession is called that _____________ • 6. A common pioneer organism in primary succession is the _____________
WHICH ONE SHOWS SECONDARYSUCCESSION AND WHY? Which one shows primary succession and why? Not water!!... It’s hardened volcano lava
mice ants Put these organisms in order that you think would move in and establish an area 1st 2nd 3rd 4th 5th 6th 7th 8th 9th lizard grass crickets trees foxes worms
EXIT QUESTION 3 The diagram above illustrates a. primary succession b. secondary succession c. an ecological pyramid d. overproduction
Exit Question 4The diagram below shows various ecological communities that occupied an area over a period of 300 years. Which statement best describes the diagram? a. Community A is the most stable community. b. C developed into community A after a period of 75 years. c. Community C replaced community B after a period of about 50 years. d. Community D modified the environment, making it more suitable for community E.
EXIT QUESTION 5 The final stage of ecological succession is characterized by the presence of the climax community, the oak-hickory forest. Figure 3 depicts the gradual change from pine to hardwoods. • According to the information in Figure 3, a 150-year-old climax community would contain oak and hickory trees with a density of approximately: • 3,000 trees per unit area. • 5,000 trees per unit area. • 15,000 trees per unit area. • 20,000 trees per unit area