The Biosphere

Ecology

• Ecologists study of interactions of organisms with their environment

• Levels of Interaction– Organism– Population– Community– Ecosystem

Abiotic Factors

• Solar Energy

• Water

• Temperature

• Soil

• Disasters

• Wind

Abiotic Factors

• Solar Energy

• Water

• Temperature

• Soil

• Disasters

• Wind

The Biosphere

Earth’s Shape & Orbit Influence Climate

Wind Patterns

Rain Shadow

Ocean Currents

Ocean Ecosystems

Freshwater Ecosystems

Terrestrial Ecosystems

• 7 Primary Biomes– Tropical rain forest– Savanna– Desert– Temperate grassland– Temperate deciduous forest– Tiaga– Tundra

Tropical Rain Forest

Savanna

Desert

Temperate Grasslands

Temperate Deciduous Forest

Tiaga

Tundra

Other Smaller Biomes

• Polar ice caps

• Chaparral

• Mountain zone

• Temperate evergreen forest

• Warm moist evergreen forest

• Tropical monsoon forest

• Semidesert

Trophic Levels

Food Web

The Water Cycle