Living resources
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Transcript of Living resources
![Page 1: Living resources](https://reader037.fdocuments.us/reader037/viewer/2022110313/55c43e86bb61ebf26b8b4633/html5/thumbnails/1.jpg)
Living Resources
6th Grade Science
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I. Environmental Issues
A. Types1. Resources
i. Renewable: Quickly replacedii. Nonrenewable: Very slow to replace
2. Population Growth3. Pollution
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B. Decisions1. Balancing Needs2. Cost3. Benefits
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II. Forest
A. Logging1. Clear-cutting2. Selective cutting
B. Sustainable
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III. Fisheries
A. Fishing Limits1. Times of year2. Numbers of fish
B. Fishing Methods1. Net sizes2. Poisons3. Explosives
C. AquacultureD. New Resources
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IV. BiodiversityA. Number
1. 1.5 million to day2. Up to 10 million new in ocean alone
B. Value1. Economic
i. Raw materialsii. Tourismiii. Jobs
2. Ecologicali. Keystone Species
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C. Factors
1. Area2. Climate (7% => 50%)3. Niche Diversity (1% => 20%)
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D. Gene Pool Diversity1. More different versions = better health
E. Extinction (all members gone)1. Endangered = Nearly Extinct2. Threatened = Soon will be endangered
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F. Causes for Extinction1. Habitat Destruction2. Poaching3. Pollution4. Exotic Species
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G. Protecting
1. Captive Breeding2. Laws and Treaties3. Habitat Preservation
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V. Medicine
A. Biodiversity1. 50% of all medicine from wild
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B. Taxol
1. Pacific Yew2. Cancer Treatment