DO NOW

DO NOWDate:5/20

Q: How does matter cycle in an ecosystem?

How do carbon and nitrogen cycle in ecosystems?

ESSENTIAL QUESTION:How does matter cycle in an ecosystem?OBJECTIVES:-Take SCA over Food Webs and Cycles-Review answers to SCA and evaluate our progress

SCA

Voice Level 0

-Keep Privacy Folders up unit instructed to put them down

-Test ID#

DO NOWDate:5/21

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

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 NOWDate:5/22

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:-Predict how a garden habitat might change over time.-Define succession and analyze the change in an ecosystem.

Succession in the Garden pg 142DAY ONE: Drawing Inventory: Abiotic/Biotic Factors

Week 2: Predictions

Succession

Succession in Action

SUCCESSION- CORNELL NOTES pg 143

Main Idea Details/Definitions

Summary

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.

Secondary Succession: The reestablishment of community following disturbance.

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.

Habitat Vocabulary pg 109Primary 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.

Year ZeroVolcano Forest Fire

All Mt. St. Helens images courtesy of University of Washington

All forest fire images Courtesy of US Forest ServiceRocky Mountain Research Station

Year EightVolcano Forest Fire

Year TwelveVolcano Forest Fire

Year SeventeenVolcano Forest Fire

Year TwentyVolcano Forest Fire

Flip Book

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

in each scence

Succession- Short Clip

Start

End

Secondary Succession

Climax Community

Wind

Secondary Succession

Disturbance

Secondary Succession

Disturbance

Secondary Succession

Disturbance

Secondary Succession

Most life eradicated; some seeds may remain in soil

Secondary Succession

Pioneer species enter

Secondary Succession

Pioneer species begin to grow

Secondary Succession

Pioneer species + other species begin to grow

Secondary Succession

A new community of organisms is being established

Secondary Succession

New climax community is established

DO NOWDate:5/24

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-Investigate succession in action on Mt. Saint Helen’s

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.

Secondary Succession: The reestablishment of community following disturbance.

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.

Mount St. Helens

Succession in Nature

• Mount St. Helen's