What is
ecology?
The study of how organisms interact with each
other and how they interact with their
environment.
What is a group of communities
with similar abiotic and biotic
conditions?
Habitat
A group of a same species
that may/may not interact
with each other?
Populations
What is the order of ecology?
Organism
|
Species
|
Populations
|
Community
|
Habitat
|
Ecosystem
|
Biomes
|
Biosphere
What is called when we
encounter non- living things?
Abiotic Factors
What is a species?
o A group of the same type of organism that lives in the same place/
time
o It’s capable of reproducing and producing fertile young
What is the smallest unit of study that
ecologists concern themselves with?
Individual organisms
What is ecosystem?
It is many habitats in a generalized
area.
What is it called when all the
places on Earth are the
survival of living things?
Biosphere
What are communities?
o Groups of populations that interact with each other at
any given day or time
o Also interact with abiotic (non-living) parts of the
community.
What are Saprobes?
o Decomposers
o Microscopic organisms
o Helps get rid of all remaining materials when things die
Similar to Saprobes?
Decomposers
A
n
o
r
Autotroph (photosynthesis)
An organism that only eat plants?
Herbivore
An organism that eats both plants and
meat?
Omnivore
Organism that eat other dead organisms?
Scavenger
An organism that only eat meat?
Carnivore
An organism that obtains its nutrients
from other organisms?
Heterotroph
Food Pyramid
Vs.
Food Web
o Food pyramid: much like a chain with a specific order
o Food web: much more complicated with different
paths being followed
Producers: First Tropic Level?
o Autotrophs
o Get their energy from the sun
Primary Consumers:
Second Tropic Level?
o First Consumers
o 90% of energy is lost per level as you move up the
pyramid
Secondary Consumers:
Third Tropic Level?
o Second level consumers
o 10% of energy is left over for those organism to
use
Tertiary Consumers: Fourth Tropic
Level?
o Third level consumers
o 1% of energy is left for those organism to use
Quandary Consumer: Fifth Tropic Level?
o Very little energy at this level
o Usually its rare to be at this level
The flow of energy in a tropic level?
o Moves from the lowest level to the highest level
o 90% of the energy is used up at each level in order for the
organism to properly function
o The original energy comes from the sun.
What is carry capacity?
o Largest number of individuals that can survive over long
periods of time in a given environment.
o This level depends on the effect of the limiting factors
Competition between species
Vs.
Competition among species
o Competition between species principally they are
competing for food, water, shelter.
o Competition among species they are competing for
food, water, shelter and mates.
A factor that you are able to access to
resources?
Limiting Factors
Density Dependent
Vs.
Density Independent
o Density Dependent: when all it is affected by
population
o Density Independent: when all is equally affected. It
doesn't’t matter how many people there are.