Reinventing the wheel (was BBS route backtrack)
Tony Thomas
mothman at nbnet.nb.ca
Thu May 2 07:37:34 EDT 2002
At 06:18 PM 5/1/02 -0700, Bruce Webb wrote:
>A line transect like this, with the clock ticking, will be intense but
>should have better repeatability than observations in the 15-mile diameter
>circle July counts. If anybody has done this before and has suggestions or
>sees pitfalls, let me hear from you. If others BBSers do this, we should
>make our data available. Who knows where this might lead?
Take a look at Pollard, E & T.Y. Yates. 1993. (yes 10 years ago).
Monitoring butterflies for ecology and conservation. Chapman & Hall,
London.274 p. ISBN 0 412 40220 3
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