BIOLOGY
Monday
1 May 2017
Entry Task
How were the different warbler species able to live together in
the same tree? Explain.
• They were able to divide resources creating different niches.
Agenda
 Housekeeping
 Ecological Succession
 POGIL - Succession
Housekeeping
Progress reports will be going out Friday, 5 May.
• Get those missing assignments turned in.
33 days of school remaining.
Chpt 4 Objectives
You will be able to answer the following questions.
•
How do ecosystems change as a result of a disturbance?
Succession
Ecological succession?
• Series of generally predictable changes in a community over
time.
Ecosystems change over time, especially after disturbances, as
some species are replaced by others.
Succession occurs in one of two ways:
• Primary Succession
• Secondary Succession
p. 106
Succession
Primary Succession:
• Succession that begins with no remnants of an existing
community.
• Occurs following the creation of new land, exposed barren
rock, or sterilized existing areas.
p. 106
Succession
Secondary Succession:
• Succession where a disturbance affects the community
without completely destroying it.
• Often follows a wildfire, hurricane, other natural disturbance,
or human activity.
• Soil survives disturbance.
p. 107
Climax Community
Do ecosystems return to “normal” following a disturbance?
• Succession does not always follow the same path.
• Therefore, climax communities are not always uniform &
stable.
p. 108
Disturbance
Natural disturbance:
• Can often reproduce the original climax
community.
• Disturbances occur so often they are never
truly stable.
Human-caused disturbance:
• Ecosystems may or may not recover from
extensive disturbance.
• Can change the microclimate & soil enough
to prevent regrowth of original community.
p. 108-109
POGIL
Process Oriented Guided Inquiry Learning:
POGIL - Succession
Instructions:
• You will work in your groups; do not go beyond STOP signs
without the rest of your group.
• Designate a representative to seek assistance from another
group if you get stuck, then ask the teacher.
Note: POGIL - Succession workbook can be located @
https://www.steilacoom.k12.wa.us/Page/5840
Video
Ecological Succession: Change is Good - Crash Course
Ecology #6 (10:01):
• Link: https://www.youtube.com/watch?v=jZKIHe2LDP8
BIOLOGY
Tuesday
2 May 2017
Entry Task
Take out your
chpt 3
Describe
the difference
between primary succession &
secondary succession.
• Primary succession begins on
newly exposed or sterilized
surfaces.
• Secondary succession begins
on soil or remnant ecosystems.
Agenda
 Housekeeping
 POGIL - Succession
 Ecosystem & Communities Review
Housekeeping
Progress reports will be going out Friday, 5 May.
• Get those missing assignments turned in.
32 days of school remaining.
POGIL
Process Oriented Guided Inquiry Learning:
POGIL - Succession
Instructions:
• You will work in your groups; do not go beyond STOP signs
without the rest of your group.
• Designate a representative to seek assistance from another
group if you get stuck, then ask the teacher.
Note: POGIL - Succession workbook can be located @
https://www.steilacoom.k12.wa.us/Page/5840
Chpt 4 Objectives
You will be able to answer the following questions.
•
What factors influence climate change?
•
What makes climate change occur?
•
What is the greenhouse effect?
Chpt 4 Objectives
You will be able to answer the following questions.
•
What is a niche?
•
What are the factors that shape the overall composition of a
community?
Chpt 4 Objectives
You will be able to answer the following questions.
•
What group behaviors increase individual species’ rates of
survival?
Chpt 4 Objectives
You will be able to answer the following questions.
•
How do ecosystems change as a result of a disturbance?
Climate & Weather
__________
___________
Temperature &&__________
___________
precipitation
patterns
patterns
determine
determine
a regions
a regions
climate.
Climate is the year to year patterns.
Weather is the day to day patterns.
Climate & Weather
Factors affecting global climate:
•
Solar energy trapped in the biosphere.
- Greenhouse Effect
•
Latitude.
- Solar energy most intense at the
equator.
•
Transport of heat by winds & ocean
currents.
- Movement due to density differences.
Niche
physical
A niche is the range of ___________
& ___________
biological conditions
in which a species lives & the way the species obtains what it
needs to _________
survive & _________.
reproduce
Three aspects of a niche:
• Resources - necessity for life (water, light, food, space)
• Physical Aspects - abiotic (climate, moisture)
• Biological Aspects - biotic (reproduction, food)
Competition
Competitive Exclusion Principle:
• No two species can occupy the same niche, in the same
habitat, at the same time.
divide
Competition forces organisms to _________
resources or die.
• Determines the number & kinds of species in a community &
the __________
each occupies.
niche
Relationships
Predators can affect the __________
size
of prey populations & determine prey
__________.
niche
A keystone species is a single
dramatically
species who’s presence __________
impacts the structure of
communities.
There are 3 main classes of symbiotic relationships:
• Mutualism
+
• Parasitism
+
• Commensalism
+K
Succession
new
Primary succession occurs following the creation of __________
land
barren
sterilized
__________,
__________
or __________
exposed __________rock,
no
existing areas where __________
remnants of an existing
community.
Secondary succession occurs following a disturbance that
destroying it & the
affects the community without completely __________
soil
__________
survives.
BIOLOGY
Wednesday
3 May 2017
BIOLOGY
Thursday
4 May 2017
BIOLOGY
Friday
5 May 2017