Dr Konrad Fiedler and co-workers published a very good research paper entitled: "Mud-puddling behavior in tropical butterflies: in search of proteins or minerals?" The authors listed more than 70 Bornean butterfly species showing puddling behaviour from their research work in 1996 and 1997. And diffrerent minerals and amino acids were used by the authors to investigate the puddling preferences of butterflies. The same paper I recommended to Jacqueline (See Butt. Ecology Behaviour & Evolution: Why do butterflies puddle?)
If you and anyone interest to read it? I will send you a pc copy(only 10 copies available). Just send your postal address or fax. no. to my email (from member list). Sorry no scanning and send by email.
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