1. Biology - Agriculture Science Standard I Objectives 2 & 3
Agriculture Ecology
Biology - Agriculture Science
Standard I
Objectives 2 & 3

2. Ecology
the study of the RELATIONSHIPS of living things to EACH OTHER and their ENVIRONMENT (surroundings)

3. Ecosystems
ALL of the LIVING communities of an area together with the NON-LIVING parts of their ENVIRONMENT

4. Parts of an Ecosystem LIVING community (BIOTIC factors)
ENERGY input and use
NUTRIENT cycling
NON-LIVING environment (ABIOTIC factors)

5. Ecology involves the study of the following things:
The interactions between members of the BIOTIC community (the living plants, animals and microbes)
The interactions between members of the BIOTIC community and the NON-LIVING environment
The interactions between the ABIOTIC environmental factors (such as light-temperature-moisture)

6. Organizational Levels
Biosphere
Ecosystem
Community
Population
Organism/ Individual

7. Organizational Levels Activity
On one side of a blank sheet of paper illustrate and label the concept of Biosphere
Biosphere
Your illustration here

8. Organizational Levels Activity
Fold the paper in half so that your illustration is on the inside.
Biosphere

9. Organizational Levels Activity
On one side of your paper illustrate and label the concept of Ecosystem.
Ecosystem

10. Organizational OrgLevels Activity
Fold the paper in half so that the illustration of ecosystem is on the inside.
Ecosystem

11. Organizational Levels Activity
On one side of the folded piece, illustrate and label the concept of Community.
Community

12. Organizational Levels Activity
Fold the paper in half so that the illustration of community is on the inside.
Community

13. Organizational Levels Activity
On one side of your folded piece illustrate and label the concept of Population.
Population

14. Organizational Levels Activity
Fold the paper in half so that Population is on the inside.
Population

15. Organizational Levels Activity
On one side of the folded sheet illustrate and label the concept of Organism or Individual.

16. Cycles of Matter
Water
Carbon
Nitrogen
Phosphourous

17. Water Cycle

18. Carbon Cycle

19. Nitrogen Cycle

20. Phosphorous Cycle

21. Limiting Nutrient - Algae Bloom

22. Reindeer

23. Predator-Prey
One organisms depends on the other organism

24. Symbiosis “Living Together”
One species lives in close association with another species over a period of time
Avoids competition for resources
Examples:
Mutualism
Parasitism
Commensalisms

25. Mutualism Both organisms benefit It is between two different organisms
Example: Crocodile Bird and the Nile Crocodile
Crocodile usually eats animals, but allows the bird to walk on its mouth
Bird cleans parasites in the crocs teeth and removes and eats scraps of food

26. Commensalism One organism benefits, one unharmed
Sharing space, defense, shelter food
“eating together at the same table”
Neither one will die if relationship is ended
Example: Shrimp and Sea Cucumber
The shrimp spends the day inside the intestines of the sea cucumber and at night emerges from it to feed on small crustaceans
The cucumber does not benefit from it, but is not harmed

27. Parasitism
One organism, the parasite, secures a home on or inside another organism
The parasite is the “guest” and the other organism is the “host”
It usually harms the host and benefits the guest

28. Trivia Time – Part 1
This organism is a bird that eats insects that live on and irritate antelopes. The bird flies up noisily when other animals approach.
What type of symbiotic relationship does this describe?

29. Trivia Time – Part 2
This organism lives in the intestine of its host, feeding off the host’s blood. The host suffers from loss of blood; it becomes thin and is easy prey to diseases.
What type of symbiotic relationship does this describe?

30. Biomes of the World Tropical Rain Forest Temperate Forest Tundra
Boreal Forest/Taiga
Temperate Woodland/Shrubland
Temperate Grassland
Mountains
Savannah
Desert
Icecaps