Download Components of an Ecosystem.b

• Today I will study the
components of an ecosystem
because I need to understand
how living things depend on one
another.
Essential Question:
What would happen to an
ecosystem if there were no
more bugs?
S7L4
What is Ecology?
• Ecology is the study of how living
things interact with one another and
with their environment.
What is an ecosystem?
• All the living and nonliving things that interact
in a particular area make up an ecosystem.
• Examples of ecosystems include: oceans,
mountains, and forest
Ecosystems:
Organism:
• An organism obtains food, water,
shelter, and other things it needs
to live, grow and reproduce from
its surroundings.
Organisms:
Habitats…..
• The place where an organism lives and
provides its basic needs is its habitat.
• There can be many habitats in one ecosystem.
• List at least 3 habitats that you seen outside
today.
Habitats:
Biotic Factors:
• Biotic factors are the living things
found inside an ecosystem.
• List at least 5 biotic factors found
in your environment.
Biotic Factors:
Abiotic Factors:
Abiotic factors are the nonliving parts of an
ecosystem.
Examples include:
1.
2.
3.
4.
5.
Sunlight
Water
Oxygen
Temperature
Soil
Abiotic Factors:
Question:
• How do biotic and abiotic
factors differ?
Species:
• A species is a group of similar
organisms that can mate with
each other and produce fertile
offspring.
Species:
Populations:
• All of the members of a
species in a particular area are
referred to as a population.
Populations:
Communities:
• All the different populations that live
together in an area make up a
community.
• Most ecosystems contain more than
one type of organism.
Communities:
What are the levels of organization?
• Organisms make up populations.
• Populations make up communities.
• And communities make up
ecosystems.
• Our People Can Eat Bread
• Organism, Population,
Community, Ecosystem,
Biosphere
Question????
• Would all the insects in a
forest be considered a
population?
• Why or Why not?
Limiting Factors
• Anything that restricts or controls the number
of individuals in a population
Carrying Capacity
• The largest number of individuals of one
species an ecosystem can support.
Competition
• All living things compete for
– Food
– Space
• Competition limits population growth.
Closing:
• “Minute Paper” –What is the
most interesting thing you
learned today.
VIS
Term
Organism
Population
Community
Ecosystem
Biosphere
Definition Sentence Picture