1. Ecology

2. Levels Of Ecology Species - Smallest Population Community Ecosystem
Biome
Biosphere - Biggest

3. Trophic Levels Producers-Make their own food
Primary Consumers-Eat Producers
Secondary Consumers-Eat Producers or Primary Consumers
Tertiary Consumers-Eat Producers, Primary Consumers or Secondary Consumers

4. Food Chains Simple way to show energy flow
Quaternary Consumer
Simple way to show energy flow
Arrows show where energy goes
Tertiary Consumer
Secondary Consumer
Primary Consumer
Producer

5. Food Webs Show complexity more accurately
Arrows represent where the energy is going
Carnivore-obtain energy from eating animals
Herbivore-obtain energy from eating plants
Omnivore-obtain energy from eating both

6. Food Webs

8. Energy Pyramids Show larger amount of energy at base
Each level up has less energy
10% of energy moves up each level
0.1% Energy
1% Energy
10% Energy
100% Energy

9. Biomass Pyramid
Total amount of living tissue within a given trophic level is called biomass

10. Pyramid of Numbers
Number of individual organisms at each trophic level

11. Habitat vs. Niche Habitat-where an organism lives
Could be considered an organism’s home
Niche-the role an organism plays in its habitat
Could be considered an organism’s job
Fill In Activity

12. Organism Interactions
Predation-organisms capture and feed on another organisms
Organisms that does the killing and eating called the predator and the food is the prey
Competition-organisms of the same or different species compete for a resource in the same place at the same time.

13. Liming Factors and Carrying Capacity
Limiting Factor-anything that limits how much a population can grow
Carrying Capacity-the maximum number of individuals an ecosystem can support indefinitely

14. Survival strategies
r strategists - live in unstable environments, so they make many, “cheap” offspring
includes insects, oysters, etc.
K strategists - live in stable environments, so they make few, “expensive” offspring
includes humans, elephants, etc.

15. r vs K Strategists

16. Symbiosis-any relationship in which two species live closely together
Mutualism-both species benefit from the relationship
Commensalism-one member benefits and nothing happens to the other
Parasitism-one organisms lives on or inside another organism and harms it
Examples?

17. Succession-changes in an ecosystem over time
Primary: succession that occurs on surfaces where no soil exists
Secondary: after a disturbance, community interactions tend to restore the ecosystem to its original condition

18. Succession With Strategists
r strategists are the first colonizers since the environment is volatile and less hospitable
K strategists move in as the environment stabilizes and increases the diversity and stability of the new ecosystem