I am a biologist (definitely not a statistician) in France with very
limited access to statistical resources and I wonder if someone can give
me some advice. I have been conducting weekly bird counts in wetland
areas for a period of 1 year. The intention is to compare numbers of
birds (of each species) among different wetland types. I was intending
on using a generalized linear model framework where counts are treated
as a Poisson random variable. The problem is this:
Of course I have now been fully advised that these counts are not
independent... and someone suggested to me to consider this as a
repeated measure. However, it seems to me that independence is really
also a function of time. Clearly counts taken over a short time
interval are related... but counts taken during different seasons over
the year probably are not. Someone else suggested to me that there
might be a way to use a bootstrapping approach to resample the data and
eliminate some of the independence problem. Anyway, I would appreciate
any ideas that anyone might have.
--
Christophe TOURENQ
Ricefields and Nature Conservation Project
Station Biologique Tour du Valat
Le Sambuc
F-13200 Arles
Tel: 00 33 (0) 4 90 97 20 13
Fax: 00 33 (0) 4 90 97 20 19
e-mail: [EMAIL PROTECTED]
URL: http://www.tour-du-valat.com
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