© 2004 Plano ISD, Plano, TX
Think – Pair – Share
Do biotic and abiotic factors
affect each other?
© 2004 Plano ISD, Plano, TX
Ecology
the study of the relationships
between biotic and abiotic factors
in environments… their “home”
Eco -logy
ecoclimate
ecosystem
© 2004 Plano ISD, Plano, TX
=
=
home
study of
zoology
climatology
Ecosystem
is a system where abiotic and biotic
factors interact with each other in a
particular area.
Biotic Factors
Abiotic Factors
the living parts of
an ecosystem
the nonliving parts
of an ecosystem
© 2004 Plano ISD, Plano, TX
Examples of Ecosystems
Mountains
Coral
Arizona
ReefinDesert
inColorado
Belize
© 2004 Plano ISD, Plano, TX
© 2004 Plano ISD, Plano, TX
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?
© 2004 Plano ISD, Plano, TX
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!
© 2004 Plano ISD, Plano, TX
Ecosystem Interactions
do not necessarily have clear boundaries
due to biotic and abiotic changes
can change daily as things move from one
ecosystem to another
Biotic
Abiotic
migration, seed
dispersal,
overpopulation
flood, erosion,
drought
© 2004 Plano ISD, Plano, TX
Biotic Factors
interact with each
other in complex such as
ways
also interact with
abiotic factors in
the ecosystem
© 2004 Plano ISD, Plano, TX
parasitism
mutualism
competition
dependent upon
water, minerals,
temperature, light
© 2004 Plano ISD, Plano, TX
Engage: Organization Activity
Read the following passage then work with your
partner.
A student lives in an apartment with his family in the
Gateways Apartment Complex. The apartment complex is
located in the Regency neighborhood of the city Starville.
The city of Starville is located in Denton county in the
state of Texas.
Task: Identify the six locations used to describe where the
student lives. Put them in order from the most precise
location to the broadest.
© 2004 Plano ISD, Plano, TX
Levels of Organization
one
individual
all
allinteracting
organisms
living
and
all
living
of
nonliving
the thing
same
populations
in
kind
things
living in
an
ecosystem
interacting
one area
within a
certain area
© 2004 Plano ISD, Plano, TX
Engage Activity – Card Sort
With your partner, examine all the cards
carefully. Determine whether they
represent an organism, a population, a
community, or an ecosystem.
© 2004 Plano ISD, Plano, TX