DO NOW Date: 3/31 Q: How do ecosystems change over time? What are the non-living parts of an ecosystem?

ESSENTIAL QUESTION: How do ecosystems change over time? OBJECTIVES: -Identify Abiotic and Biotic Factors in an ecosystem -Discuss their importance -Observe how the succession plot has changed over time

Succession Plot Go outside and examine succession plot from the week before Make observations along with predictions for another week Note any new growth on the plot along with comparisons to the undisturbed ground around it

Outside Expecatations -Voice Level 0 in the hallway -Voice Level of 1 or 2 outside while you examine the succession plot -Classes are very near the plot, so be mindful of your volume! Stay in one spot in close vicinity to the plot where you can see and draw Do not wander!

Succession Plot Drawing Abiotic/Biotic Factors Predictions: What will you observe a week from now? Week 1: Week 2: 1000 Year prediction: KEY: Primary Succession Secondary Succession

ENGAGE: Word Sort Sort the cards at your table into two groups: Living Things Non-living things

Biotic and Abiotic Factors

Vocabulary pg Word Definition EXAMPLE Abiotic Factors All of the non-living parts of an ecosystem Air, soil, Sun Biotic Factors All of the living parts of an ecosystem Animals, plants, bacteria

Name That Factor

Name That Factor

Name That Factor

DO NOW Date: 4/1st & 2nd Q: How do ecosystems change over time? How do fires impact an ecosystem?  Can they be good for a habitat? Why or why not?

ESSENTIAL QUESTION: How do ecosystems change over time? OBJECTIVES: -Identify Primary and Secondary Succession -Examine stages of succession after the eruption of Mt. St. Helens

Intro to Succession 4th/5th Period -Complete Frayer Models for Primary Succession and Secondary Succession using pages 616 & 617 from Glencoe Science -Be prepared to share your facts, examples, or non-examples

Intro to Succession 7th/8th Period -When Frayer Models are completed, complete the Introduction to Succession Web Quest

Succession in Nature Mount St. Helen's As you watch the video, answer the questions provided

DO NOW What does the term ecological succession mean? Date: 4/3 Q: How do ecosystems change over time? What does the term ecological succession mean?

Succession Succession in Action

SUCCESSION- CORNELL NOTES pg 143 Main Idea Details/Definitions Summary

Flip Book Cut your pieces Put them in order Staple once on the side Write a description of what was is happening in each scene

Wind Secondary Succession Climax Community Secondary Succession Pioneer species enter Wind Start Secondary Succession Disturbance Secondary Succession Pioneer species begin to grow Secondary Succession Disturbance Secondary Succession Pioneer species + other species begin to grow Secondary Succession Disturbance Secondary Succession A new community of organisms is being established Secondary Succession Most life eradicated; some seeds may remain in soil Secondary Succession New climax community is established End

Bare rock is exposed due to some type of disturbance like a retreating glacier or volcanic eruption. No soil is present. Pioneer species, like lichens and mosses, establish themselves on the rock substrate. Pioneer species die and decay, providing soil and nutrients for other plant species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Primary Succession: The establishment of new community where none existed before.

opDA Pioneer Species: Lichens

Climax Community Stable, end stage of ecological succession in which organisms use resources efficiently and balance is maintained.

Organisms are driven away or killed by some type of disturbance, like a forest fire, leaving behind only the soil. Pioneer species, like grasses and weeds, begin to grow from the soil. Roots and seeds left over may also begin to grow again. Some pioneers species die and are replace or outcompeted by other species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Secondary Succession: The reestablishment of community following disturbance.

Habitat Vocabulary pg 109 Primary Succession- when an area regrows after a disturbance has removed all plants and SOIL Secondary Succession- when an area re-grows itself after a disturbance has removed all plants and the soil still remains Pioneer Species- the first species to start growing in an area Climax Community- when an area has grown into a stable community

Climax Community Stable, end stage of ecological succession in which organisms use resources efficiently and balance is maintained.

All Mt. St. Helens images courtesy of University of Washington Year Zero Volcano Forest Fire All forest fire images Courtesy of US Forest Service Rocky Mountain Research Station All Mt. St. Helens images courtesy of University of Washington

Year Eight Volcano Forest Fire

Year Twelve Volcano Forest Fire

Year Seventeen Volcano Forest Fire

Year Twenty Volcano Forest Fire

Succession- Short Clip

DO NOW Why is succession beneficial for some habitats? Date: 4/4 Q: How do ecosystems change over time? Why is succession beneficial for some habitats?

ESSENTIAL QUESTION: How do ecosystems change over time? OBJECTIVES: -Properly identify the order of primary and secondary succession

Succession- Short Clip

Succession Cards -Primary Succession -Secondary Succession Put the cards in order of the events that will occur in the ecosystem.

Bare rock is exposed due to some type of disturbance like a retreating glacier or volcanic eruption. No soil is present. Pioneer species, like lichens and mosses, establish themselves on the rock substrate. Pioneer species die and decay, providing soil and nutrients for other plant species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Primary Succession: The establishment of new community where none existed before.

Organisms are driven away or killed by some type of disturbance, like a forest fire, leaving behind only the soil. Pioneer species, like grasses and weeds, begin to grow from the soil. Roots and seeds left over may also begin to grow again. Some pioneers species die and are replace or outcompeted by other species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Secondary Succession: The reestablishment of community following disturbance.

Mount St. Helens

Mt. St. Helens

Succession Quiz Keep Voice at level 0 You may use any of your notes to help you answer questions