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Ecological
survey of a local ecosystem
In Order to obtain a thorough understanding of the ecology
and biodiversity which is in your own home town an excellent experiment
to complete is a ecological, count of the relative number of distinct
plants and animals which live in a small segment of forest. By completing
this lab you will be given a thorough understanding of the different species
of plants which are present in you local ecosystems.
Time required: 4-6 hours
Materials:
- String
- Four (4) stakes
- Pencil and pad of paper
- A field guide, which shows the different types of plants present in
your area, this guide should be easy to understand and use.
Safety: While working in the woods or away from home, be sure to tell
someone where you are going, take special care not to approach any wild
animals, and avoid contact with poisonous plants such as poison ivy, oak
and sumac.
Procedure:
- Find a desirable location, which is out of the way, and easy to gain
access to all parts of, measure out 30 foot by 30 foot area, and place
a stake in each corner of this area.
- Tie the string onto each of the stakes to mark out the area in which
you will be working.
- Start at one edge and work your way through the are, identifying each
plant in your field guide and recording it on your data table. List
all of the varieties of tree, shrub, perennial and annual, which you
can find.
- After you have observed and recorded all of the species of plants
in your study area clean up your mess and leave the research plot, just
as you found it.
- After cleaning up, analyze you data chart and rank each species of
plant by the number of individuals present in the test plot.
- Record any other observations about the test plot, which may be useful,
such as overall condition of the vegetation, amount of litter, etc.
Analysis:
- Look over your field guide to, obtain a better understanding of how
each of the plants which you observed, relate and help one another in
the ecosystem. Describe at least one relationship which two distinct
species of plants have with one another.
- Since all ecosystems grow and change overtime, your specific test
plot may differ from other test plots, in the same area. Use your field-guide
as a resource to enable you to better, understand, at what point of
development your test plot is at.
Further Research:
- Return to the test plot during several different seasons, to observe
the change which occurs in the plant life, perform another count and
compare this data, to previous studies, in order to see if some plants
are only present during specific times of the year.
- Take photographs of the area and begin to compose an ecological scrapbook
and visual time table keep for a long period of time, you will be able
to accurately record the changes which have occurred in the various
ecosystems.
- In addition to recording the various species of plants which, are
encountered record the animals, such as insects which you find in the
ecosystem
- Log onto 'A World of Diversity' and post messages or use the online
chat functionality to collaborate and compare the differences between
your test plot and the plots of others form around the globe.
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