1. Intro to ECOLOGY

2. Objectives:
(11B.) Investigate and analyze how organisms, populations, and communities respond to external factors.
Language Objective:
SWBAT classify and distinguish between the different levels of ecological organization.
SWBAT recognize how an ecosystem is composed of factors that affect the survivability of species.

3. Differentiating Biotic Abiotic
Sunlight Plants Insects Temperature Fish Humidity pH Soil Type Acid Rain Bacteria Snake Hawk Human
Biotic Abiotic

4. ECOLOGY
Ecology – the scientific study of interactions between organisms and their environment

5. ABIOTIC & Biotic FACTORS
Abiotic Factors – Non living parts of an organism’s environment
_____________ is an example of an abiotic factor because ___________.

6. ABIOTIC & Biotic FACTORS
Biotic Factors- the living/biological parts of an organism’s environment
______________ is an example of a biotic factor because ____________.

7. BIOTIC FACTORS EX. Plants, Bacteria, animals
Biotic Factors – all living organisms that inhabit an environment

8. INTERACTIONS WITHIN A POPULATION
Organism- an individual animal, living thing, species

9. organism
organism

10. INTERACTIONS
ALL organisms depend on others directly or indirectly for food, shelter, reproduction, or protection

11. Habitat – The place where an organism lives and interacts.
Fish living in a pond
Pigeon living in a city

12. Niche – a role or a position a species has in its environment
how it meets it’s specific needs for food and shelter, how it survives, and where it reproduces

13. INTERACTIONS WITHIN A POPULATION
Population – a group of organisms, all of the same species, which interbreed and live in the same area

14. population
population
organism
organism

15. INTERACTIONS WITHIN A POPULATION
Organisms of the same population must compete with each other for food, shelter, and other resources
EX. White tailed deer, killer whales, wolves

16. COMMUNITY
Community – made up of interacting populations in a certain area at a certain time
Changes in one population can affect other populations in the same community

17. community
community
population
population
organism
organism

18. ECOSYSTEMS
Ecosystem – is made up of interacting populations in a biological community and the community’s abiotic factors
Forest, Meadows, Rotting Logs
Ponds, Streams, Lakes, Oceans, Puddles

19. ecosystem
ecosystem
community
community
population
population
organism
organism

20. Biosphere – portion of the earth that is livable
Stretches from the bottom of the ocean to the outer layers of the atmosphere

21. biosphere
biosphere
ecosystem
ecosystem
community
community
population
population
organism
organism

22. PARTS OF AN ECOSYSTEM Organism – a living thing, species
Population - collection of inter-breeding organisms of a particular species
Community - group of living interacting organisms sharing an environment
Ecosystem - the combined physical and biological components of an environment
Biosphere - the ecosystem comprising the entire earth and the living organisms that inhabit it

23. biosphere
biosphere
ecosystem
ecosystem
community
community
population
population
organism
organism