Ecology Review

Levels of Organization-Ecology

Only biotic factors

Both biotic and abiotic

Biomes

Vocab:

Herbivore-only eats producersCarnivore-only eats other consumersOmnivore-eats both consumers and produces

consumer-eats other organisms for energyproducer-produces its own food● autotroph-uses light energy

to make food● chemotroph-uses chemical

energy to make fooddecomposer-breaks down organic material for energy

Energy vs Nutrients

Energy flows through an ecosystem

Nutrients cycle● Carbon cycle● Water cycle● Nitrogen cycle

Review of biomes:

How to Read Climate Graphs

Aquatic Ecosystems:

Primary vs. Secondary Succession

Eutrophication

Limiting Factor vs. Surplus Resource

Limiting factor-controls how much a population can grow● if it increases-population

increases● if there isn’t much,

population can’t grow much

Surplus resource-always present● does not affect

population growth

Human Impacts

● Inc sulfur in air-acid rain● Inc carbon from fossil fuels-inc in atmospheric

CO2○ Greenhouse effect-Atmospheric gases not allowing

heat to leave○ Global warming-global climate change as a result of

excess greenhouse gases● Inc CFC (chloroflourocarbons) in

atomsphere-ozone depletion

Global warming vs. Ozone depletion

infrared radiation