1. Warm-up # 1 Oct. 22 How do organisms interact with each other?
List at least 5 examples

2. How do ecosystems change? How do organisms interact in a community?
Ecology Part 3
How do ecosystems change?
How do organisms interact in a community?

3. Ecology
The study of interactions that take place between organisms and their environment
All organisms are depend on each other = interdependent
Organisms interact with living and non-living things in their environment

4. Let’s Check Your Homework
Get out your homework
Directed Reading: What is an Ecosystem?

5. What is a habitat?
Habitat – A place where an organism lives out its life.

6. Changes of Ecosystems over Time
When a volcano forms a new island, a glacier recedes and exposes bare rock, or a fire burns all of the vegetation in an area, a new habitat is created.
This change sets off a process of colonization and ecosystem development.
The first organisms to live in a new habitat are small, fast-growing plants, called pioneer species.

7. Changes of Ecosystems over Time
A somewhat regular progression of species replacement = succession.
Succession that occurs where plants have not grown before = primary succession.
Succession that occurs in areas where there has been previous growth, such as in abandoned fields or forest clearings = secondary succession.

8. Relationships
Read and complete Directed Reading: How Organisms Interact in Communities

9. Relationships
Predator-prey- one individual captures, kills, and consumes another
Symbiosis – The relationship in which there is a close and permanent association between organisms of different species.

10. Example of Symbiosis
Commensalism –relationship between two organisms where one is benefited and the other is neither benefited or harmed.
Clown fish and sea anemone

11. Example of Symbiosis
Mutualism –relationship where both organisms benefits.
Ants and aphids

12. Example of Symbiosis
Parasitism- one individual feeds on another; does not result in the immediate death of the host
Ex. Mosquitoes, ticks, tapeworm

13. And Don’t Forget
Competition- some organisms that live in the same place compete for the same limited resource

14. Let’s Practice What type of relationship is this?
Hold up the card that has the relationship that you think this is.

15. Competition leads to…
Read Chapter 17.2 Directed Reading: How Competition Shape Communities

16. Competition leads to…
Niche – the job of a specific organism within and ecosystem.
Fundamental niche – everywhere an organism may potentially occupy to gain resources
Realized niche – the actually location an organism occupies to gain resources
Warbler

17. Warbler Foraging Zones

18. And Competition leads to…
Biodiversity – variety of organisms living in a community
Promotes stability and productivity

19. What are the major biological communities?
Climate determines where species live
Biomes
Affected by temperature and climate
Occurs over a large area

20. 7 major terrestrial biomes
Tropical rain forest
Savanna
Taiga
Tundra
Desert
Temperate grass-land
Temperate forest (deciduous and evergreen)

21. Elements of Climate

22. Aquatic Communities Freshwater Wetlands Shallow Ocean Waters
Surface of the Sea
Ocean Depths

23. Presentations Get into your groups You team will be given a Biome
Create a poster to present to the class about your Biome.
Locations
Characteristic of biome
Type of climate
Organisms in the area
Picture
Neat
Colored