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6.3.1 Ecosystems - Coggle Diagram
6.3.1 Ecosystems
how the distribution and abundance of
organisms in an ecosystem can be measured
what is
distribution
?
how can you measure
distribution
?
what is
abundance
and why might it fluctuate daily?
how can you measure
plant abundance
?
how can you measure
animal abundance
?
how do you reduce
sampling bias
?
how can you improve the
accuracy
of sampling?
how can you calculate a measure of biodiversity?
the process of
primary succession
in the
development of an ecosystem
what is succession?
what is
primary succession
?
draw out the
seral stages
for primary succession and give examples of plants at each stage
how are
pioneer species
adapted?
what is the
climax community
?
when will biodiversity be at its highest?
what is
deflected succession
and what is a
plagioclimax
?
biomass transfers through ecosystems
how can (dry) biomass transfers between trophic
levels can be measured?
what are the limitations with this method?
what is a
trophic level
and name the different trophic levels?
the efficiency of biomass transfers between trophic levels
what is
ecological efficiency
?
how do you calculate ecological efficiency?
producers
where is energy lost at the producer level?
what is
gross production
?
how is
net production
calculated?
consumers
where is energy lost at the consumer level?
what is
secondary production
?
how human activities can manipulate the transfer of biomass through ecosystems?
producers
consumers
units to measure biomass
on land
in water
what is biomass?
ecosystems
, which range in size, are dynamic and
are influenced by both
biotic
and
abiotic
factors
what is a
community
?
examples of small ecosytems
examples of large ecosystems
examples of
biotic factors
that influence ecosystem dynamics
examples of
abiotic factors
that influence ecosystem dynamics
recycling within ecosystems
carbon cycle
draw and label the carbon cycle
why do CO2 levels fluctuate throughout the day?
why do CO2 levels fluctuate seasonally?
why have global atmospheric CO2 levels increased significantly over the past 200 years?
nitrogen cycle
draw and label the nitrogen cycle, including the relevant microorganisms (note if nitrogen is being oxidised or reduced at each stage)
stage 1- what happens during
nitrogen fixation
(including the ions) and which microorganisms are involved?
stage 2- what happens during
nitrification
(including the ions) and which microorganisms are involved?
stage 3- what happens during
uptake and assimilation
?
stage 4- what happens during
decomposition/ammonification
(including the ions) and which microorganisms are involved?
stage 5- what happens during
denitrification
(including the ions) and which microorganisms are involved?
what is the difference between a
decomposer
and a
detritivore
?
