Ecosystems
2.1) Definition of an ecosystem: A unit in
which aboitic and biotic organism have a relationship were they interact with
one another, the living (biotic) organism interact with the abiotic physical
environment . An ecosystem is a defined area which is self sustaining. An
ecosystem cannot exist without abiotic and biotic components. An ecosystem as
four main sections. 1) Autotrophs (make their own food) or producers which are
mainly green plants because of photosynthesis . 2) the consumers which are
heterotrophs, mainly animals. 3) the decomposers which are in fact heterotrophs
mainly bacteria and fungi. 4) the non living/ abiotic environment.
2.2) The reason we consider our Eco-column
to be an ecosystem, is because in our Eco- column we have biotic (decomposers,
heterotrophs, Autotrophs) and aboitic components in our column which is the
most vital part of an ecosystem. Are Eco- column is in a defined space with the
ability for outsiders eg. Fruit flies, to enter our Eco- column just like in
environments and habitats. Proof of this is we have bacteria, fungi and
earthworms as decomposers; we had algae and a plant as our Autotrophs to
produce oxygen. We had fruit flies and earthworms acting as Consumers so in our
ecosystem we had all the essential parts in an ecosystem. One of the reasons we
would consider our Eco-column not to be a successful ecosystem is because it
was not self sustaining but in nature it is the circle of life to die so
therefore that is an acceptable feat that our Eco-column died but for us as a
group it feels a bit like a failure but we still think of it as a success.. In our ecosystem we had one or 2 food chains
running but not an entire food web. Therefore we do not think are Eco-column
was a perfect ecosystem but could be classified as one as we had biotic and
abiotic components.
Evidence
of abiotic components:
Soil:
Bark, decomposed fruit and twigs:
Evidence
of biotic components:
Radish plants:
Algae:
2.3) The reason we think our eco-column was
a success was understanbly that the eco column had all the essential parts of a
ecosystem. Unfortunately for us , mistakes let us down as we did not recycle
the water often enough, didn’t have a food web in our ecosystem and had no water
for three weeks during the holidays . On the other hand we can see it as a
success but not as a success as a ecosystem. If our eco- column deemed success it would be
that we had all the essentials defining a ecosystem. All our posts were done
with great success because of our eco-column so we can conclude that our
eco-column was success but not a success as an eco-column. Bacteria and fungi
are still living in our eco-column decomposing what is left this is what really
happens in nature so another plus by which it was it success. One of the
reasons we would consider our eco-column not to be a successful ecosystem is
because it was not self sustaining but in nature it is the circle of life to
die so therefore that is an acceptable feat that our eco-column died but for us
as a group it feels a bit like a failure but we still think of it as a success.
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