Transcript Living Resources

Living Resources
Table of Contents
Environmental Issues
Forests and Fisheries
Biodiversity
The Search for New Medicines
Living Resources
What is an issue?
What are some examples of issues that you have heard
about? With your partner write down 3 issues that you are
aware of today in Thailand.
An example of an issue is below.
Should we build a Bangkok Disney in a wet land?
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Types of Environmental Issues
-Resource use
-Population growth
-Pollution
-Making responsible decisions
- Balancing different needs
- Types of costs and benefits
- Weighing costs and benefits
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Classroom Issues
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Global Warming
Rural Flooding
Unemployment
Loud teachers
No kissing in school
Drivers License age
Gay marriage
Skating in public
Drinking age
Living Resources - Environmental Issues
Identifying Main Ideas
As you read the section “Types of Environmental Issues,”
write the main idea in a graphic organizer like the one below.
Then write three supporting details that give examples of the
main idea.
Main Idea
Three types of environmental issues are…
Detail
Resource use
Detail
Population growth
Detail
Pollution
Living Resources
For Homework
Complete the Section assessment #1
Complete the Guided Reading Worksheet Section #1
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End of Section:
Environmental
Issues
Living Resources
Identifying Forest Products
• What things can you find in the classroom that came from
the forest?
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What happened to the Tuna?
• Lab Zone P. 89
• Complete the graph.
• Inferring: Describe the changes in the tuna population
during this period. Can you suggest a reason for these
changes?
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What products come from the forest?
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Nuts
Lumber
Pulp
Rubber
Fruit
Living Resources - Forests and Fisheries
Managing Forests
Clear-cutting involves cutting down all the trees in an area at
once. Selective cutting involves cutting down only some
trees.
Living Resources - Forests and Fisheries
Logging Methods Activity
Click the Active Art button to open a browser window and
access Active Art about logging methods.
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How do we manage fishing in Thailand?
• Lab Zone p. 92 Calculating
• How do we prevent over fishing?
– Fishing limits
– Fishing methods
– Aquaculture
– New resources
Living Resources - Forests and Fisheries
Using Prior Knowledge
Before you read, write what you know about forests and fish
resources in a graphic organizer like the one below. As you
read, write what you learn.
1.
2.
1.
2.
What You Know
Forests provide people with lumber and paper.
Commercial fishing boats harvest large amounts of fish.
What You Learned
Forests can be renewable resources.
Setting fishing limits, changing fishing methods, and
developing aquaculture techniques are ways to manage
fisheries for sustainable yields.
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Complete Section Assessment p. 95 as well
as guided reading.
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End of Section:
Forests and
Fisheries
Living Resources
What organisms live in our area?
• With your partner list as many organisms that you can
think of that live near your home. (5 mins)
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Which area is more likely to have a higher
biodiversity- Tropical Rainforest or Earth’s
Poles?
• Why?
• Why does a coral reef have such a diversity?
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Biodiversity and Economics
• How can an entire ecosystem be used to generate
income?
• In your groups you will be assigned one ecosystem.
Please brainstorm how you could make money using the
resources in the ecosystem.
Rainforest
Savannah
Coral Reef
Marine
Aquatic
Forest
Urban
Mountain
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Diversity and Survival of Species
• What are genes?
• Genes determine characteristics of all organisms.
• Why is this important?
What is the Gene Pool of a species?
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Endangered Species
• 1) What are they?
• 2) Why does it happen?
• 3) What can we do to prevent it?
Get into 3 even groups
Group 1 answer #1
Group 2 answer #2
Group 3 answer #3
Report to the class
Living Resources - Biodiversity
Diversity of Species
The number of different species in an area is called its
biodiversity.
Living Resources - Biodiversity
Factors Affecting Biodiversity
Factors that affect biodiversity in an ecosystem include area,
climate, and diversity of niches.
Living Resources - Biodiversity
California Peregrine Falcon Recovery
The peregrine falcon, the
world’s fastest bird of prey, was
nearly extinct in the United
States in 1970. The pesticide
DDT was weakening peregrine
eggshells, so eggs rarely
hatched. In 1972, the United
States banned DDT. Use the
graph to answer questions
about the peregrine population
in California.
Living Resources - Biodiversity
California Peregrine Falcon Recovery
Reading Graphs:
What variable is plotted on
the x-axis? What variable is
plotted on the y-axis?
Time interval in years is on
the x-axis. Number of
breeding pairs of peregrine
falcons is on the y-axis.
Living Resources - Biodiversity
California Peregrine Falcon Recovery
Interpreting Data:
How did California’s
peregrine population change
from 1976 to 1998?
The population grew
steadily, except for a brief
drop around 1980, until
1994, when the number
of breeding pairs
remained the same for
the four following years.
Living Resources - Biodiversity
California Peregrine Falcon Recovery
Inferring:
Why do you think the
peregrine population grew
fairly slowly at first?
There were only a few
breeding pairs at first, and
they could produce only a
few young. These, in turn,
had to grow up before they
had a chance to breed. As
more pairs grew to breeding
age, more and more young
could be produced.
Living Resources - Biodiversity
California Peregrine Falcon Recovery
Predicting:
What might this graph have
looked like if DDT had not
been banned?
The graph probably would
have sloped downward from
left to right, possibly
reaching zero breeding
pairs.
Living Resources - Biodiversity
Endangered Species
Click the Video button to watch a movie
about endangered species.
Living Resources - Biodiversity
Building Vocabulary
After you read this section, reread the paragraphs that
contain definitions of Key Terms. Use all the information you
have learned to write a meaningful sentence using each Key
Term.
Key Terms:
Examples:
biodiversity species
threatened
Species
The
biodiversity
that couldofbecome
ecosystems
endangered
can have
in great
the near
economic
future
are value.
called threatened species.
keystone
species
habitat destruction
A
keystone
species
is a species
that influences
the
The
major cause
of extinction
is habitat
destruction.
survival of many other species in an ecosystem.
Breaking larger habitats into smaller, isolated pieces,
Genes
are theisstructures
in an fragmentation.
organism’s cells that
or fragments,
called habitat
carry its hereditary information.
The
killing or removal
of wildlife
The illegal
disappearance
of all members
of aspecies
speciesfrom
from
their
habitats
is
called
poaching.
Earth is called extinction.
habitat fragmentation
gene
poaching
extinction
captive
breeding
endangered
species
Captive
breeding
is becoming
the matingextinct
of animals
zoos or
Species in
danger of
in theinnear
wildlife
preserves.
future are
called endangered species.
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End of Section:
Biodiversity
Living Resources - The Search for New Medicines
Asking Questions
Before you read, preview the red headings. In a graphic
organizer like the one below, ask a what, how, who, when, or
where question for each heading. As you read, write the
answers to your questions.
Question
Answer
Why is biodiversity important to
medicine?
Biodiversity is important
because there may be
undiscovered medicines that
exist in nature.
What is the story of taxol?
Taxol is a cancer treatment drug
that comes from the bark of the
Pacific yew tree. Scientists are
concerned about the supply of
this tree.
How can we increase the
supply of taxol?
Today taxol can be reproduced
in the lab.
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End of Section:
The Search for
New Medicines
Living Resources
Graphic Organizer
Biodiversity
can be protected by
is valued for
Economic
value
Ecological
value
is threatened by
Habitat
destruction
Habitat
preservation
Captive
breeding
Poaching
Pollution
Laws
Poaching
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End of Section:
Graphic Organizer