B4.2
Ecological Niches 2/2/26
oxidation of chemical
~chemotroph
= in
organic iron &
Autotroph:provide e.g
own
energy-phototroph
↳ light
- as
energy source ammonia
methanogensis, methane absorption
Heterotroph:get
energy from others
Mixothroph:both Autotroph &
Heterotroph
Dentition:Seeths
that from dead
Saphotrophs:heterotrophs obtain
organic
nutrients
organism
by external
Digestion. These
organisms
are referred to as
feed dead
decomposers as
they on material.
eg mushrooms
niche reflects the a in
role
species the
-
on
ecosystem
of
specialistspecies:only foundin one specific location
Generalist
species:Foundin
a wider of environments
range a
Ecolocical Niche:what
it
does, it's
role, now does it the
impact
Els
R
ecosystem?
Keystone Species:create huge impact
of the environment
Beavers bark, build Dams & create wetland leading to an
e.g. eat
improvedbiodiversity
Mode of Respiration
Obligate aerobe:requires
oxygen
to
respire
auearobe:requires
Obligate no
oxygen, oxygen toxic to them
faculative Anerobe=
Some will fermentation
organism can
generate ATD
using oxygen, but to
revert
hen not
present
,
Ecological Niches 2/2/26
oxidation of chemical
~chemotroph
= in
organic iron &
Autotroph:provide e.g
own
energy-phototroph
↳ light
- as
energy source ammonia
methanogensis, methane absorption
Heterotroph:get
energy from others
Mixothroph:both Autotroph &
Heterotroph
Dentition:Seeths
that from dead
Saphotrophs:heterotrophs obtain
organic
nutrients
organism
by external
Digestion. These
organisms
are referred to as
feed dead
decomposers as
they on material.
eg mushrooms
niche reflects the a in
role
species the
-
on
ecosystem
of
specialistspecies:only foundin one specific location
Generalist
species:Foundin
a wider of environments
range a
Ecolocical Niche:what
it
does, it's
role, now does it the
impact
Els
R
ecosystem?
Keystone Species:create huge impact
of the environment
Beavers bark, build Dams & create wetland leading to an
e.g. eat
improvedbiodiversity
Mode of Respiration
Obligate aerobe:requires
oxygen
to
respire
auearobe:requires
Obligate no
oxygen, oxygen toxic to them
faculative Anerobe=
Some will fermentation
organism can
generate ATD
using oxygen, but to
revert
hen not
present
,
