1. Ecology Biotic vs. Abiotic Relationship All Regions of Biosphere
Organisms and Environment
Organisms and other organisms
All Regions of Biosphere
Intertwined

2. Population: all members of a species that live in one place at one time
Community: all the interacting organisms living in an area
Habitat: the place where an organism usually lives
Niche: an organisms physical use of its habitiat and function within an ecological community

3. Symbiotic Relationships
Organism #1
Benefits
Harmed
Not Affected
Organism #2
Benefits
Mutualism
Parasitism
Commensalism
Bacteria and
Soybeans,
Ruminants
Barnacles on
Whales?

5. Pinwoms Adult Pinworm Scotch Tape Test for Eggs
Bright Light Test for Adults

6. Competition
Resources are limited
Overlap of habitat and / or niche

7. Results of Competition
Decrease in population
Emmigration / immigration
Increased specialization
Develop new niche

8. Feeding Relationships
Producers:
Consumers:
Herbivore:
Carnivore:
Omnivore:
Decomposer:

9. Energy and Ecosystems Three Requirements Constant source of Energy
Conversion of Energy to Usable forms
Recycling of Nutrients

10. Draw a food chain that includes the Sperm Whale.
Label each organism as either an Producer, Herbivore, carnivore, onmivore.
Draw a food chain that includes the Sperm Whale.
Generally will not include more than 6 levels until energy is gone

11. Draw the pyramid and place the food chain that included the whale from the previous slide on each level.
"All flesh is grass."  - Isaiah
Three hundred trout are needed to support one man for a year.  The trout, in turn, must consume 90,000 frogs, that must consume 27 million  grasshoppers that live off of 1,000 tons of grass.   -- G. Tyler Miller, Jr., American Chemist (1971)

12. Trophic Levels Shows energy flow At what level(s) do an organism feed?
10 % rule (Predator gains 10% of prey e)
Types of pyramids

13. Cycles
Water
Nitrogen

14. Carbon Cycle
Why is the curve Jagged?
Formula:
Carbon Dioxide