1. Ecology

2. The study of the interactions that take place among organisms and their environment

3. Biosphere The part of Earth that supports life
Top portion of Earth's crust
All the waters that cover Earth's surface
Atmosphere that surrounds Earth.

5. Ecosystem Biotic Parts Abiotic Parts Plants Animals Bacteria Fungi
Atmosphere
Soil
Water

6. Population
All the organisms in an ecosystem that belong to the same species
Maple Trees
Robins
Earthworms

8. Community All the populations in an ecosystem Deciduous Forest
Maple trees
Oak trees
Pine trees
Robins
Rabbits

10. The place in which an organism lives
Habitat
The place in which an organism lives
provides the kinds of food and shelter, the temperature, and the amount of moisture the organism needs to survive
Describe the habitat in the next slide.

12. Niche
An organism’s job or importance in an ecosystem (ex: autotroph, carnivore)
Each niche can only be filled by one organism or there will be competition.

13. Competition
Two or more organisms want the same resources in the same ecosystem
Food
Mates
Water
habitat
Only one can win!! Unless the other organism is able to migrate to another area it will perish.

14. Competition Limits Population Size
Population Size may vary over time but there is a limit to the number of a specific kind or organism that can live in an ecosystem.
This is called the Carrying Capacity

15. Limiting Factor
Anything that restricts the number of individuals in a population. (food, water, habitat)
Includes living and nonliving features of the ecosystem
What do you think is the limiting factor in the next slides?

18. Biodiversity

19. Biodiversity-the variety of different species from the six kingdoms in an ecosystem.

20. What types of organisms can you identify in this ecosystem?

21. Secondary Succession

22. Pioneer species
A group of organisms, such as lichens, found in the primary stage of succession and that begin an area's soil-building process

24. Climax community
A community that has reached a stable stage of ecological succession

26. Biome
Large geographic areas with similar climates and ecosystems

28. Includes Tundra Taiga Desert Temperate deciduous forest
Temperate rain forest
Tropical rain forest, and grassland

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30. This powerpoint was kindly donated to www.worldofteaching.com
is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.