Ecosystems Cornell Notes

Ecosystems Cornell Notes

Ecosystems A community of organisms and their abiotic surroundings

Biotic living things

(Skip 1 Line) (your 5 biotic organisms listed from the homework)

Abiotic non-living things. (remember dead is not the same as non living)

(your 5 abiotic organisms listed from the homework)

Characteristics

of life 1. Grow and develop--cells

2. need energy—food, water, air

3. pass traits to offspring

4. adapt to environment

5. evolve over time

Major Abiotic

Factors on Life 1. water

2. sunlight

3. co2/oxygen

4. soil

5. natural disaster

6. temp

Levels of

Organization Organism—one individual

Population—a group of the same organisms

Community—a group of different organisms

Ecosystem—see above.

Ecosystems Cornell Notes

Producer something living that makes energy

Consumer Uses the energy from producers

Decomposer releases energy from dead things

Herbivore eats only plants

Carnivore Eats only meat

Omnivore gets energy from both plants and animals

Food Web (Draw an example)

Traces energy through an ecosystem

Food Pyramid (draw the food web/energy pyramid on the board)

Most energy is available to the producers and at each level there the energy available decreases

10% Rule Each level uses 90% of the energy available to it. Only 10% of the energy gets passed to the next level.

Factors that

Affect Pop

Size 1. Immigration/Emigration

2. Death/Birth rates

3. Limiting resource like food, water, space

4.

5.

Leave 4-5 lines at the bottom of the page for a summary