1. ECOLOGY: The study of interactions among living and nonliving things
ABIOTIC FACTORS
Non-living factors
Soil, temp., precipitation
BIOTIC FACTORS
Living factors
Plants & animals

2. Biotic vs Abiotic Factors
Biotic = living (BIO = life)
Abiotic = nonliving
Biotic factors are all of the living things in an environment.
Abiotic factors are all of the nonliving things in an environment.

3. Biotic vs Abiotic Factors
Environment
Biotic Factors
Abiotic Factors

4. Biotic vs Abiotic Factors
Environment
Biotic Factors
Abiotic Factors
Animals, plants, people, birds
Water, sunlight, soil, rocks, wind, temperature

5. Biotic or Abiotic?

6. Biotic or Abiotic?
Biotic!

7. Biotic or Abiotic?

8. Biotic or Abiotic?
Abiotic!

9. Biotic or Abiotic?

10. Biotic or Abiotic?
Biotic!

11. Biotic or Abiotic?

12. Biotic or Abiotic?
Abiotic!

13. Biotic or Abiotic?

14. Biotic or Abiotic?
Abiotic!

15. All organisms are what…biotic or abiotic?

16. All organisms are what…biotic or abiotic?

17. What are all the biotic and abiotic things in this picture?

18. What are all the biotic and abiotic things in this picture?

19. Do biotic and abiotic factors affect each other?

20. Do biotic and abiotic factors affect each other?
If there is no water…can anything grow or survive?
If it is extremely cold one winter, will that affect whether an animal makes it?

21. Do biotic and abiotic factors affect each other?
If there is no water…can anything grow or survive?
No!
If it is extremely cold one winter, will that affect whether an animal makes it?
Yes!
So, abiotic and biotic DO affect each other. Even though water and temperature aren’t living things, they DO affect living things!

22. Ecosystems Abiotic Factors Non living parts of an ecosystem
provide the nutrients and materials needed to support life
Examples of living factors that need nonliving factors:
Plants need water, nutrients and carbon dioxide
Animals need water, oxygen and vitamins

23. Ecosystems Biotic Factors Living
These are organisms that exist in nature and provide balance in an ecosystem
If some of the biotic factors of an ecosystem dies, what happens to the rest of the system?
Can cause an increase or decrease in other organisms
Here’s an example of what happens if a biotic factor dies:
If a fire moves through a forest, the birds fly will away, the trees will burn, the air will be smoky, but the soil will become enriched with nutrients

24. Guided Practice
Organize the following words into TWO lists, Abiotic and Biotic Factors:
Snake
Rain
Oxygen
Clouds
Mountain
Sand
Leaf
Moss
People
Goldfish
Wind
Ph of soil
Mud
Sunlight
Air
Weather
Tulip
Bumblebee
Raccoon
Temperature
Polar Bear
Soil
Earthworm
Rocks
Gold
Minerals
Salamander
Moon
Deer
Volcanoes
Lake
Ice
Fire
Maple tree
A cell
Climate
Raspberry bush
Eagle
Corn on the plant

25. Guided Practice
Organize the following words into TWO lists, Abiotic and Biotic Factors:
Biotic Abiotic
Sand
Goldfish
Moss
Wind
Clouds
Polar Bear
Leaf
Ph of soil
Sunlight
Air
Weather
Bumblebee
Salamander
Tulip
Oxygen
Ice
Mountain
Raccoon
Earthworm
Soil
Mud
Rocks
Maple tree
Minerals
Moon
Deer
People
Temperature
Corn on the plant
Volcanoes
Eagle
A cell
Lake
Rain
Raspberry bush
Fire
Snake
Climate
Gold

26. Levels of Organization
Species-> Populations-> Communities-> Ecosystem-> Biome-> Biosphere
Small-> Large

27. SPECIES
A group of organisms so similar that they breed and produce fertile offspring

28. Individuals that belong to the same species and live in the same area
POPULATION
Individuals that belong to the same species and live in the same area

29. COMMUNITY
All of the different populations that live and interact in the same environment.

30. ECOSYSTEM
All the communities that live together with the abiotic factors in the same environment.

31. Ecosystems Combination of biotic and abiotic factors in an environment

32. Biome : a large group of ecosystems that have the same climate and biotic factors

33. Biomes
Specific types of ecosystems and environments that have certain types of climates and biotic factors
Types
Tundra
Desert
Taiga(Boreal)
Grassland
Temperate Deciduous Forest
Tropical Rainforest

34. BIOSPHERE
The combined parts of the lithosphere, hydrosphere & atmosphere where life exists.

35. Biosphere The living part of the world
Why should we care about the biosphere?
It provides the food we eat, the plants we grow and oxygen to breathe
Why should we take care of the biosphere?
Without the services that the biosphere provides, we would be dead.

36. Life on Earth is broken down into different levels
Biosphere The living part of the world
Biomes Specific types of ecosystems and environments that have certain types of climates and biotic factors
Ecosystems The combination of the living and non living parts of an environment
Community Different types of animals and plants that interact with each other in an ecosystem
Population A group of animals/plants that live in one community
Species A single type of organism
Organism An individual life form

37. Relationships in Biomes
Biomes will shape the types of organisms that are found in them
Organisms are adapted to the ecosystems and biomes that they live in
Different biomes have different amounts and types of organisms for various reasons:
Tropical: will have more and different types of plants and animals
Why? Animals and plants tend to grow and reproduce more in warmer, wetter climates
Tundra: will have a smaller amounts and less variety of animals and plants
Why? Colder climates have harsh conditions for plants to grow in, which means less food for animals
Temperate forest: have larger human populations
Why? Humans prefer milder climates

39. Warm-up
Tell me a story of about how abiotic and biotic factors play a role in your life.
For example, “Everyday I wake up and brush my teeth with toothpaste. Then I say hi to my mom and eat a bowl of cereal. I change my clothes, feed the dog, and walk outside to catch the bus. Sometimes I hear birds chirping on the way.”
Abiotic factors: toothpaste, cereal, bus
Biotic Factors: My mom, my dog, birds
You need to include at least 3 abiotic factors and 3 biotic factors and list them at the end.