Biology Backyard Biodiversity Data Analysis

Biology Backyard Biodiversity Data Analysis
You: _______________________ Your Partners:______________________________
Biology
Backyard Biodiversity Data Analysis
9.18.13
Data Collection:
Go to Mr. Mason’s website and follow the link labeled “Biodiversity – class data map”.
Select at least 12 survey sites to enter into the data table below. You should select three
from each of the four general areas that we visited.
Name of data collector
Site disturbance level (1-5)
Total # of species present
Analysis:
Answer the following questions on a separate sheet of paper. You can work on them as a
group, but each person needs to write them up separately. Attach your answers to this
sheet, and have one person in your group submit your field data sheet. To receive credit
for this lab, make sure each person in your group hands in this sheet, the analysis answer
sheet, and that I get the data sheet somehow. There aren't any “perfect” answers here you will be graded on your ideas, participation, and how thoroughly you answer these
questions. Good luck!
1. Which site that your group surveyed had the greatest biodiversity? Which had the
least biodiversity? (Use your own data here from your sheet – not the data you just
looked at from other groups.)
2. Calculate the average number of species present when the disturbance level was noted
as 2, 3, and 4 in the samples you looked at on the computer. If any sites were labeled
as 1 or 5, you can ignore these as outliers. (Outliers are statistical anomalies –
basically things that are so far outside the range of what would be expected that the
data should be ignored.)
3. Graph the averages on your answer sheet (a line graph would be most appropriate).
Put the level of disturbance on the x axis and the average number of species found on
the y axis.
4. Was there a relationship between disturbance and biodiversity? If so, what was it and
how strong was the relationship? Be specific about the link between the two. (In
other words, when you figured out the averages in #2 and graphed them in #3, how
noticeable was the trend from high to low disturbance?)
5. Did some species prefer disturbed sites? If so, what were they?
6. Do you think that you did a thorough job? What, if anything, do you think you might
have missed?
7. What are some insights that you wish to share with me?
(Something…anything…what’s on your mind related to this activity? Yes, this
question is worth credit – and so is the next one.  )
8. How would you improve this lab, given the realities that we only have 52 minutes at a
time and that not every student has a smart phone? (I take your suggestions seriously
– please give this some thought.)
Was this manual useful for you? yes no
Thank you for your participation!

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