Table of Contents Environmental Issues Forests and Fisheries Biodiversity The Search for New Medicines

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?

Types of Environmental Issues Resource use Population growth Pollution Making responsible decisions Balancing different needs Types of costs and benefits Weighing costs and benefits

Classroom Issues Global Warming Rural Flooding Unemployment Loud teachers No kissing in school Drivers License age Gay marriage Skating in public Drinking age

Identifying Main Ideas - 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 Detail Detail Resource use Population growth Pollution

For Homework Complete the Section assessment #1 Complete the Guided Reading Worksheet Section #1

End of Section: Environmental Issues

Identifying Forest Products What things can you find in the classroom that came from the forest?

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?

What products come from the forest? Nuts Lumber Pulp Rubber Fruit

Managing Forests Forests and Fisheries Clear-cutting involves cutting down all the trees in an area at once. Selective cutting involves cutting down only some trees.

Logging Methods Activity Forests and Fisheries Logging Methods Activity Click the Active Art button to open a browser window and access Active Art about logging methods.

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

Using Prior Knowledge Forests and Fisheries 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. 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.

Complete Section Assessment p. 95 as well as guided reading.

End of Section: Forests and Fisheries

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)

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?

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

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?

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

Diversity of Species Biodiversity The number of different species in an area is called its biodiversity.

Factors Affecting Biodiversity Factors that affect biodiversity in an ecosystem include area, climate, and diversity of niches.

California Peregrine Falcon Recovery 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.

California Peregrine Falcon Recovery 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.

California Peregrine Falcon Recovery 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.

California Peregrine Falcon Recovery 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.

California Peregrine Falcon Recovery 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.

Click the Video button to watch a movie about endangered species. Biodiversity Endangered Species Click the Video button to watch a movie about endangered species.

Building Vocabulary Biodiversity 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: threatened species habitat destruction habitat fragmentation poaching captive breeding Key Terms: Examples: biodiversity Species that could become endangered in the near future are called threatened species. The biodiversity of ecosystems can have great economic value. keystone species A keystone species is a species that influences the survival of many other species in an ecosystem. The major cause of extinction is habitat destruction. Breaking larger habitats into smaller, isolated pieces, or fragments, is called habitat fragmentation. gene Genes are the structures in an organism’s cells that carry its hereditary information. The illegal killing or removal of wildlife species from their habitats is called poaching. extinction The disappearance of all members of a species from Earth is called extinction. endangered species Captive breeding is the mating of animals in zoos or wildlife preserves. Species in danger of becoming extinct in the near future are called endangered species.

End of Section: Biodiversity

Asking Questions The Search for New Medicines 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.

End of Section: The Search for New Medicines

Graphic Organizer Biodiversity Economic value Ecological value is valued for can be protected by Economic value Ecological value Captive breeding Habitat preservation Laws is threatened by Habitat destruction Poaching Pollution Poaching

End of Section: Graphic Organizer