Transcript Is it living Powerpoint 1 Is it Living PowerPoint

Intro to Ecosystems
Biotic vs. Abiotic Factors
Is it Living?
9/15/15
• Key Question: What do you
think an ecosystem is?
• Initial Thoughts
Biodiversity
• The variety of organisms in a
specific environment or on
earth.
What factors both
living and non living
will affect my life?
3 minutes To
THINK PAIR
SHARE
Factors affecting mouse
•
•
•
•
•
•
Predators
Food
Shelter
Temperature
Weather
Competitors
• Pathogens
• Parasites
• Clean Water
Would the same factors affect this
flower?
Factors Affecting Plant
•
•
•
•
•
•
Predators
Food
Shelter
Temperature
Weather
Competitors
•
•
•
•
•
Pollinators
Soil
Nutrients
Wind
Daylight
Definitions
• Ecosystem: A community interacting with the
non-living parts of its environment.
• Eco- means environment
• -system interacting parts
Definitions
• Biotic: Living organisms in the
•
•
•
•
•
•
environment, such as plants or animals.
Bio- life
tic- pertaining to/ of
Abiotic: Non-living physical features of the
environment, such as soil and water.
A- not
Bio- life
tic- pertaining to / of
Evidence 1: Card Sort
Sort the cards into 3 columns. Record your
answers in a table like below:
Biotic
Abiotic
Unsure
(or both/can’t agree)
Evidence: Sort contd…
• Look at those that are in the unsure
column. Why were those confusing?
• Write down the rule that you used to
decide if something is biotic or abiotic.
Let’s Practice!
• For each picture (ecosystem), name as
many biotic and abiotic factors as you can.
• Where do you think the ecosystem
boundaries are? (Where do they begin
and end?)
What are the Biotic and Abiotic
Factors in the Image?
Check Yourself
Biotic
Trees, cactus, shell, scorpion,
grass/seaweed
Abiotic
Sun, clouds, sand, water, ice, snow
Group Practice
In your lab group, you will create
a list of abiotic and biotic factors
for each ecosystem.
River Ecosystem
Abiotic
Biotic
River Ecosystem
Biotic
Trees
roots
Fish
Moss
Bugs
Branches
Algae
Amphibians
Birds
Snails
Plants
Animals
Leaves
Abiotic
River/water
Rocks
Oxygen
Sand
Dirt
Sun
Clouds
Air/atmosphere
Glacier?
Ocean Ecosystem
Ocean
Biotic
Human
Fish
Barnacles
Coral
Snails
Skeletons
Shells
Algae
Sharks
Fish eggs
Squid
Abiotic
Octopus
Whales
Dolphins
Mold
Plankton
Seaweed/Kelp
Sand
Water
Boat
Oxygen
CO2
Sunlight
Rock
Metal
Minerals
Evidence 2: Courtyard Ecosystem
• Your group will be assigned an area in the
courtyard.
• List as many biotic and abiotic factors as
you can.
• Write down the boundaries of your
assigned ecosystem.
• What are the Inputs? The Outputs?
Analysis Questions
1. You’re on the beach and find a piece of
driftwood. Is it biotic or abiotic? Why?
2. Is a patch of lawn an ecosystem?
Explain.
3. What are some biotic & abiotic factors
that would affect a plant but not a
rabbit?
Summary
What did you think about ecosystems before
this lesson?
What did you learn about ecosystems from
this lesson? (Minimum of 3 sentences!!!)
What are some further thoughts or questions
you have about ecosystems?
Reflection
Big Idea
• Biodiversity is important for
ecosystems to support life.
• Abiotic and biotic factors work
together to support life.
Prairie (entry task)
Ex. One dog fish
All of one species ex. Dog fish
All the biotic factors in a given area ex. Dog
Fish, squid, crabs
All the abiotic and biotic factors in a given
area ex. Dog fish, squid, crabs, rocks, water
Same climate features over large areas with
Similar plant features ex. Artic
All the ecosystems in a given area. ex. Earth