Ecology, Part II: Human Impact on Ecosystems

THE SLIDE SHOW IS THE SAME AS ECOLOGY, PART I.

YOU NEED TO KNOW HOW TO:

• Describe the effects of humans on the ecosystem with emphasis on examples of international importance (tropical rain forests, oceans and important rivers);
• Describe the consequences of deforestation in terms of its effects on soil stability, climate and local human populations;
• Evaluate the effects of:

1. water pollution by sewage, by inorganic waste and by nitrogen-containing fertilizers;
2. air pollution by greenhouse gases (carbon dioxide and methane), contributing to global warming;
3. air pollution by acidic gases (sulfur dioxide and oxides of nitrogen), contributing to acid rain;
4. pollution due to insecticides;

• Discuss reasons for conservation of species with reference to maintenance of biodiversity, management of fisheries and management of timber production;
• Discuss reasons for recycling materials, with reference to named examples.

VIDEOS:

1. COST OF POLLUTION




2. AIR POLLUTION AND HEALTH



3. WATER POLLUTION



4. DEFORESTATION



5. WILDLIFE CONSERVATION



6. CONSEQUENCES OF OVERFISHING





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