Thursday sev2cprisuccession Lesson

My Class Expectations

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SGB Block Schedule

01-23-2025

the BLOCK

MR. Allen

Environmental

Science

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not on. Continued non-camera use will result in moving up the discipline ladder.

First offense: Teacher conferences with student and documents in IC.

Second offense: Teacher conferences with student, contacts LC and documents in
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Fourth offense: Academic coach submits discipline referral to discipline AP

Please make sure to turn your camera on at the beginning of each class.

You can set it to private (only teacher sees) or public (everyone sees).

BLOCK SCHEDULE

Georgia Cyber Academy SGB

What would you tell me

about Moana and Tekah

?

Body

This or that where would you see
a happy people or something else?

Open Ended

What is happening with Moana. She is fighting this creature? why?

Vocabulary terms(supplement)

1. Disturbance: A disturbance is an event that causes a large and rapid

change in an ecosystem. Natural disturbances include wildfires, insect
infestations, landslides, avalanches, volcanic eruptions, and floods.

2. Post-Disturbance: After a disturbance, there are significant changes to

the ecological community (plants, animals, fungi, etc.) as well
as to non-living features such as the soil and water.
Some severe disturbances may leave behind little more than
bare rock.

Vocabulary terms(standard essential)

Catastrophe: a significant and sudden event that causes widespread destruction or disruption,
often leading to ecological changes and initiating the process of succession.

Intermediate Species: species that appear during the stages of ecological succession, often
filling the gaps between pioneer species and climax communities, contributing to the overall
biodiversity of the ecosystem.

• Disturbances can be minor or major, and can affect the ecological community, as well as

non-living features like soil and water.

•

Vocabulary terms(standard essential)

• Primary Succession: the process of ecological change that occurs in an

environment that has never been colonized before, such as a barren landscape created by a volcanic eruption or glacier retreat.

• Climax Community: a stable and mature ecological community that has

reached a final stage of succession, characterized by a diverse range of species and a balanced ecosystem.

•

Pioneer Species: the first organisms to colonize previously disrupted or
damaged ecosystems, helping to create conditions that allow other species to
thrive.

Standard

EV2. Obtain, evaluate, and
communicate information to construct
explanations of
stability and change in Earth’s
ecosystems.

c. Construct an argument to predict
changes in biomass, biodiversity, and
complexity within.

Learning Target

I can identify the start step for a

primary succession catastrophically

event.

- I can explain how primary

succession takes a long time to

recover and categorize the events in

proper order)

Weekly prep

slide

C.E.R review day

Questions: email teacher before due date if you are unsure

Today: a check in progress learning sev2c (remember practice test

The first week deadline check zeros

deadline and getting partial credit.

Catastrophy=repair=climax

How can scientists

determine if an ecosystem

will recover
from a

catastrophic natural event?

Today is part one of two days we will

explore how is change in an ecosystem
measured according to events of change.

How do scientists categorize

and identify change in an

ecosystem?

Ecological succession

the process by which the species and environmental

factors in an area change over time.

Disturbances are events that cause large and rapid

changes to an ecosystem, which can then trigger

succession

Change in

ecosystems happen
at different levels.
There are two types

primary and

secondary
succession

occurs when species are
colonizing a new habitat that
was previously devoid of life.
An example of primary
succession is the formation
of an ecological community
atop newly formed igneous
rocks after a volcanic
eruption. Because the rocks
just formed, the community
is forming on them for the
first time (hence, primary
succession).

happens after a
disturbance that caused
a sudden change in an
existing ecosystem,
such as a wildfire or
flood. Such
disturbances may
(temporarily) wipe out
or scare off many of the
species living there
before the disturbance.

Primary succession Secondary success

Disturbance

• A change in an

ecosystem is
caused by a
disturbance.

• A succession

does not start
until post
disturbance (after the
catastrophe)

Lets go over the parts of change in primary

succession

link

​

​Flipped classroom

Primary succession

• Primary succession starting with rocks, pioneer species

intermediate species small shrubs, pine trees and hardwood
trees

The first organisms to arrive after a
catastrophe that has destroyed the soil of an
ecosystem is mineral absorbing plants such
as lichen and moss.

You ever see what grows on rock or cliffs?

Pioneer species

• Intermediate plant species include grasses, shrubs, and some trees that can survive in thin topsoil.

•
Intermediate species often include shade-intolerant plants which thrive in the relatively open, post-
disturbance landscape.

• As more and more plant species become established, they help create habitats for different animal species

to return too.

Intermediate species

1 of 2

• Intermediate plant species after grass foliage change include shrubs, and next change is some trees that can survive in thin topsoil.

•
Intermediate species often include shade-intolerant plants which thrive in the relatively open, post-
disturbance landscape.

• As more and more plant species become established, they help create habitats for different
animal species

to return too.

Intermediate species

2 of 2

• Stability:

  Climax species are adapted to stable environments and can thrive under limited resources, often being good competitors for light, nutrients, and space. 

• Late successional stage:

  They appear later in the succession process, after pioneer species have modified the environment to become more suitable for them. 

• Minimal change:

  Once established, a climax community with dominant climax species shows minimal fluctuation in species composition unless a major disturbance like fire or logging occurs. 

Climax community

(shade-tolerant)

Example: In a forest ecosystem, large, shade-tolerant trees like oak or maple might be considered climax species, as they establish themselves in the later stages of succession and dominate the canopy once the environment is suitable for their growth. 

​

Climax community example

Pyroclastic flow example

Volcanic eruptions are great examples for an event to wipe out the soil and nutrients
in an ecosystem.



 

Humans impact the cycle of disturbance and succession in many ways. People create

unnatural disturbances such as clearcutting forests. Humans sometimes introduce invasive
species that take the place of native species during the succession process. We also alter
the timing of disturbances, causing disturbances to take place more or less often than they

should naturally. Humans often try to prevent disturbances like fires, floods, and

landslides because they damage our buildings, roads, and homes. However, altering

natural disturbance regimes has a history of coming back to haunt us.

Human impact

Change and ecosystems

Terrestrial and

aquatic biomes all
have balance of

change

Primary succession

happens in ecosystems

why is it important?

What is the good from it?

Will the
change

bring life?

Let’s see how you do?

The volcanoe has erupted and we need to
be the ones to put it back together in the

proper order

Reorder

Tyrannus have chased the triceratops in an area with volcanoes.

Reorder the following volcanic disturbance fr the triceratops to live.

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

CHECK FOR UNDERSTANDING:

 ✅ I am ready   

❌I need to do the flashcards
          😀Word wall review and flashcards
           👍please put me in a bor

Ecological Succession: Changes in an ecosystem that causes older
organisms (if present) to die out and new ones to move in.

The last picture is the climax community. What do you think the
definition of climax community is?

Biomes

When we talk about succession this is the picture you usually see.

Think about the organisms in different biomes. What do you see as you follow
the arrows?

Climax Community

Just like a food web, each
biome has different
organisms so the climax
community will look
different.

An ecosystem is always
developing to its most
complex and stable state.

Brain Break

SHARED PRACTICE (30 MINS.)

“WE DO”

Home

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INDIVIDUAL PRACTICE (20 MINUTES)

“YOU DO”

Quadrat around your home:

Can you find?
Intermediate?

Pioneer species?
Climax community?

Multiple Choice

These four 1m² squared quadrats were place in a 8m² garden. Estimate the total population of flowers in the whole garden.

• 16

• 17

• 9

• 21

• 12

Multiple Choice

The following information shows a type of epiphyte in a habitat.

Habitat: Tree trunk

Type of epiphyte on tree trunk: Unicellular algae, Pleurococcus sp.

Which of the following is most suitable to estimate the coverage percentage of Pleurococcus sp.?

• A transparent quadrat of 1 cm x 1 cm

• A transparent quadrat of 10 cm x 10 cm

• A iron frame quadrat of 10 cm x 10 cm

• A wooden frame quadrat of 10 cm x 10 cm

Quadrat Sampling Technique for estimating population size

• Parameters of Sampling Quadrat;

• frequeancy . density. coverage

Fill in the Blank

The above five quadrats show the coverage of palnt X on a school field. What are the coverage percentage of plant X?

%

Time to explore with quadrats

The area around your home is trying to reach a climax. why?

What are the two parts
for an ecosystem to
exist?

What is the four
level of an energy
pyramid

Show an example of an energy
pyramid that an ecosystem is
not going to be a sustainable
place.

What is the two main
abiotic parts of a biome

What are the three
roles of consumers?

What happens if one of the three
consumer levels goes missing?

What is the difference
between estuary and
fresh water lotic
ecosystem?

What is the
difference between
producer and
consumer?

What are the two types of
processes producers can use for
the base of energy in an
ecosystem

Ninja

Warrior

Champion

Primary

succession

In the article we viewed over
together. What is an example of
primay succession, first steps?

soil not present and change with

pioneer species like grass

soil not present and change with

pioneer species like moss
and lichen

soil present and change with

pioneer species like grass

soil present and change with

pioneer species like trees

Emoji trivia time

Multiple Choice

In the article we viewed over together.  What is an example of primary succession, first steps?

• 😀 soil not present and change with pioneer species like grass

• 🔊 soil present and change with pioneer species like trees

• 🐢 soil present and change with pioneer species like grass

• 🐇 soil not present and change with pioneer species like moss and lichen

Primary Succession - Labelled diagram

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CHECK FOR UNDERSTANDING:

Science Fair Project

• Ready to show your skills?

•

yes, give me the link ☺

•

no, I need to text you.

•

I need help

Lesson Summary

➢
A Science Fair project has specific elements
that are required.

➢

I can investigate something that I am
interested in for my Science Fair project.

➢

I can research my idea.

➢

The first law of thermodynamics explains that
energy changes form in an ecosystem but it
doesn’t disappear.

➢

The second law of thermodynamics explains
that most energy in an ecosystem is used to
help the organism survive and is not available
at the next level.

➢

Changing events in an ecosystemto determine
its success.

Lesson Summary

➢
Ecological Succession involves a series of changes in
an ecosystem from either starting a new community
or replacing an older community.

➢
An ecosystem is always trying to develop to its most
complex and stable state.

➢
Disturbances from succession events cause a
decrease in biodiversity, biomass, and complexity
within food webs.

➢
As ecosystems progress through succession stages
biodiversity increases.

➢
Biodiversity is the variety of life in the world or in a
particular habitat or ecosystem.

➢
Biomass is the total mass of organisms in a given
area or volume.

Open Ended

Using the words from the word bank try to earn 10 dollars-each word in the bank is worth 1 dollar.

You get it? The volcano's aftermath of destruction Lichen created soil from the barren rock area. The area now with created soil eventually shrubs appeared after grass vegetation and later establishing nutrients for small trees and and the maturity of the Large hardwood trees

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