Question:
Our fourth grade class was wondering. We are
reading Charlotte's Web and we have come across two things we need
to ask about. Is there such a thing as an umbrella web or a dome
web? These were two terms I came across while teaching the
students Charlotte's Web. If you could let us know, we would appreciate
it.
Replies:
I have never heard of webs with those specific names or structures. This
commercial web site has a pretty good description of web types and
functions, and while it doesn't mention dome or umbrella, it does include a
picture of a "dome" web. My guess it is a more or less accidental form of
the generally random structured cobweb.
http://www.pestproducts.com/spider-webs.htm
This site
http://www.backyardnature.net/spidsilk.htm
has a picture of a sheet web made by a "filmy dome spider" which fits my
guess above.
Another site
has a student article about "sierra dome spider" behavior.
A Google search turned up these in seconds, more looking will undoubtedly
find more information.
Good luck
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