Pre IB Biology Ecology

Biosphere ,[object Object],[object Object]

Community ,[object Object],[object Object]

Population ,[object Object],[object Object]

Ecosystem ,[object Object],[object Object],[object Object],[object Object],[object Object]

Requirements for a Stable Ecosystem ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ecosystem Factors ,[object Object],[object Object],[object Object]

I. Energy Flow Relationships ,[object Object],[object Object]

The ultimate energy source of the earth is the sun

Energy moves through three basic classes of organisms: ,[object Object],[object Object],[object Object]

Food Chains ,[object Object],[object Object]

Energy Pyramid ,[object Object],[object Object],[object Object]

Food Webs ,[object Object],[object Object]

Cycle of Materials ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Water Cycle ,[object Object],[object Object],[object Object],[object Object]

Nitrogen Cycle ,[object Object],[object Object]

Biotic Factors ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1. Nutritional Relationships ,[object Object],[object Object]

Types of Heterotrophs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2. Symbiotic Relationships ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Commensalism ,[object Object],[object Object],[object Object]

Mutualism ,[object Object],[object Object],[object Object],[object Object],[object Object]

Parasitism ,[object Object],[object Object],[object Object],[object Object]

Limiting Factors ,[object Object],[object Object],[object Object],[object Object],[object Object]

Competition ,[object Object],[object Object]

Ecosystem Formation ,[object Object],[object Object]

Ecological Succession ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],Ferns

Herbaceous Plants goosegrass

Larger plants ( Small trees and large shrubs) ,[object Object],Hawthorn

Climax Community: Large Trees Beech Tree

Biomes ,[object Object],[object Object],[object Object]

Aquatic Biomes ,[object Object],[object Object],[object Object],[object Object]

Tundra ,[object Object],[object Object],[object Object]

Taiga ,[object Object],[object Object],[object Object],[object Object]

Temperate Deciduous ,[object Object],[object Object],[object Object],[object Object]

Grassland ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tropical Forest ,[object Object],[object Object],[object Object]

Desert ,[object Object],[object Object],[object Object],[object Object]

Ecology Part II: Human Ecology

Exponential Growth ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

Carrying Capacity and Logistic Growth ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Factors affecting human population growth ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Limiting Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Source: United Nations, World Population Prospects, The 1998 Revision ; and estimates by the Population Reference Bureau. ,[object Object],[object Object],[object Object],[object Object]

Human Population Growth and the Environment As the human population grows, we take up more space, consumer more resources, and produce more wastes!

Disruption of Existing Ecosystems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2. Poor Farming Practices ,[object Object],[object Object],[object Object],[object Object],[object Object]

3. Pollution ,[object Object],[object Object],[object Object],[object Object]

3a. Acid Rain ,[object Object]

3b. Global Warming ,[object Object],[object Object],[object Object]

3c. Ozone Depletion ,[object Object]

Causes of Ozone Depletion -the release of gases called chlorofluorocarbons (CFC’s) -CFC’s: used as coolants in fridges, air conditioners, aerosol cans, and in plastic production

How have we destroyed the habitats of organisms? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Value of Biodiversity ,[object Object],[object Object],[object Object]

Threats to Biodiversity ,[object Object],[object Object],[object Object],[object Object]

Biomagnification ,[object Object]

Pre IB Biology Ecology

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