1. C4: Ecosystems & Communities
Ecology SLO: Students will be able to explain the interdependence of matter, energy and living things and how it effects an organisms ability to survive in nature.
C3: The Biosphere
C4: Ecosystems & Communities
3.1 What is Ecology?
3.2 Energy, Producers, and Consumers
3.3 Energy Flow in Ecosystems
3.4 Cycles of Matter
4.1 Climate
4.2 Niches & Community Interactions
4.3 Succession
4.4 Biomes
4.5 Aquatic Ecosystems

2. Chapter 3: The Biosphere - Part 1
ECOLOGY
Chapter 3: The Biosphere - Part 1

3. Ecology:the study of the interactions of living organisms with each other and their environment.

4. BIOSPHERE: the portion of Earth that supports life . . .
Air
Land
Water

5. Levels of Organization (pg. 64)
Biosphere
Biome
Ecosystem
Community
Population
Species

6. Inorganic /Abiotic factors . . . (the non-living environment)
Wind
Temperature
Moisture
Light
Soil
Minerals
Fire

7. List the abiotic and biotic Factors in the picture below.

8. Biotic vs Abiotic Factors
Bozeman Biology
10.02 min
Question: Compare and contrast abiotic
and biotic factors in an ecosystem.

9. 3.2 Energy, Producers, and Consumers (Pages 69-72)
How do different organisms get the energy they need to survive?

10. 3.2 Energy, Producers
Autotrophs – capture energy from sunlight or chemicals and convert it into forms that living cells can use.
Primary producers – producers of energy-rich compounds later used by other organisms – essential to energy flow
Photosynthesis – energy from the sun
Chemosynthesis – use chemical energy to form carbohydrates

11. 3.2 Consumers Heterotrophs – must acquire energy from other organisms
Consumers – organisms that rely on other organisms for energy and nutrients - ingest other organisms to obtain energy
- types of consumers (pg. 71 – make a chart of consumer types)

12. 3.3 Energy flow in ecosystems How does energy move through an ecosytems?

13. 3.3 Energy Flow in Ecosystems
Autotrophs – organisms that collects energy from the sun or inorganic substances to produce food, also called producers.
Examples: all types of plants

14. 3.3 Energy Flow in Ecosystems
Heterotrophs – organisms that ingests/eat other organisms, also called consumers.
Examples: animals, fungi
Several different types of consumers; see page 71.

15. Ecological (Energy) Pyramid
Omnivores eat anything
Carnivores eat meat
Insectivores eat insects
Herbivores eat plants
Producers make own food
Trophic level = feeding step

18. The 10 Percent Rule (pg. 77)

19. Energy Flow in Ecosystems (7:45 min)

20. Food chain – shows how energy flows
producer
herbivore
omnivore
omnivore
producer
1st order consumer
2nd order consumer
3rd order consumer

22. Focus Questions:
Identify and write three food chains from the food web on page 75 in the text.

23. Food web: interconnected food chains
Organisms almost always eat, and are eaten by, many different organisms.

25. chicken
grass
deer
caterpillar
hawk
frog
seeds
snake
beetle
coyote
turkey
human
rabbit

26. chicken
grass
deer
caterpillar
hawk
frog
seeds
snake
beetle
coyote
turkey
human
rabbit

28. Focus Questions: Compare a food chain with a food web.
Which is a more accurate representation of the feeding relationships in an ecosystem?
Justify your answer, give supporting details.

29. Can you name the relationships between organisms in this slide?
THE END!