Bats Graph

We wanted to show how the numbers of some
of the bats of Wyandotte Caves have changed
over the years. Dr. Clark McCreedy shared the
following spreadsheet with us. It shows data
collected every other year since 1981 on four
bats. They are the Indiana bat, Eastern Pipistrelle,
Big Brown, and Little Brown.

(Our thanks goes to Dr. Clark McCreedy for sending us this table.)

We decided to convert this information into a
bar graph to better illustrate the differences
in numbers. It is clear from this information that
the Indiana bat numbers have steadily climbed
over the years at Wyandotte Caves while the numbers
of the other four have not changed very much.
(See our bar graph below. We created it with Microsoft Works)

Click on the graph to see a larger version of it.
 

EXTRA!

We just recently received the following graph information from
Lori Pruitt, a bat recovery officer for the U. S. Fish and Wildlife
Service. It shows the dramatic increase in the numbers of the
Indiana bats after certain events at Wyandotte, such as the
installing of a steel gate and especially after winter tours were
terminated. We thank Lori Pruitt for this information!


Click on the graph to see a larger version of it.
(Our thanks goes to Lori Pruitt, U.S. Fish and Wildlife Service)

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Comments? Questions? You can e-mail us at: jgoble@cannelton.k12.in.us