Download What`s your job?

What’s your job?
How do you fit into your
community?
Niche
NICHE - An organism’s role in its
community
Its job!
Niche
CAN BE BASED UPON WHERE THEY GET ENERGY
Autotroph – use energy from the sun to
make their own food
PLANTS!!!!
Heterotroph – relies on autotrophs for their
source of nutrients
ANIMALS!!!
CAN BE BASED UPON WHAT THEY EAT
Herbivore – eats autotrophs (plants)
Carnivore - eats other heterotrophs; kills
for food
Omnivore – eats both autotrophs and
heterotrophs
CAN BE BASED UPON WHAT THEY EAT
Scavenger – eats other heterotrophs that
are already dead
Decomposers – organisms who break down
and absorb nutrients from dead organisms
Niche
PREDATION – one organism (called
predator) kills and eats another (called
prey)
* what is an example of a
predator/prey relationship?
Niche
COMPETITION – two or more
organisms trying to obtain the same
limited resource
Both organisms are at a loss because they
spent energythe organism who eats
simply replaces some of the energy
COMPETITION
Intraspecific: 2 or more organisms
in the same species are competing
(intra = within)
Interspecific: 2 or more organisms
from different species are
competing
(inter = between)
Symbiotic Relationships
SYMBIOSIS – close, long-lasting
physical relationship between two
different species
Why isn’t predation and competition
considered symbiosis?
Symbiotic Relationships
1. Commensalism – one species
benefits and the other is neither
harmed nor benefited
2. Mutualism – both species benefit
3. Parasitism – one organism benefits
at the expense of the other
(tends to harm and not kill)
Commensalism
Clown fish live in
sea anemones
Protects the clown
fish from other fish
but doesn’t affect the
sea anemone
Commensalism
The bird finds a
place to build a nest
(benefits), while the
tree neither gains
nor loses
Mutualism
A bee moves pollen
from one flower to
another, thus
fertilizing the
flowers. At the same
time, the bee
satisfies its need for
food by feeding on
nectar produced by
the flower
Parasitism
Fleas on a dog
would be an
example of
parasitism.
Food Chain
ALWAYS moves from autotroph to
heterotroph & eventually decomposers
autotroph
1st-order heterotroph
2nd order heterotroph
decomposer
Grass to deer to bear to bacteria
Arrows represents the direction
of energy flow
Levels of Organization
Organism
Levels of Organization
Population- all members of a single
species that live in one place at one
time
Covers terms such as herd, flock, grove,
swarm, pod, pride, school
Levels of Organization
Community- several populations living
together & interacting
Levels of Organization
ecosystem - a community and its abiotic
factors
Levels of Organization
biome - areas with a
similar physical
appearance
Levels of Organization
biosphere - the
entire area of the
earth where life
exists
Make your own biosphere
Name
Population (neighborhood,
ethnic group, religious affiliation)
Etc.
Ecology Report
Report on a ecological situation
Problem/solution
An Animal’s life cycle
Use at least 10 ecological terms
Highlight or underline the term
Define the term in your paper