FORUM is intended for new ideas or new ways of interpreting existing information. It provides a chance for suggesting hypotheses and for challenging current thinking on FORUM ecological issues. A lighter prose, designed to attract readers, will be permitted. Formal research reports, albeit short, will not be accepted, and all contributions should be concise FOR~tUM~l with a relatively short list of references. A summary is not required. T he 'file drawer problem" of non-significant results: does it apply to biological research?

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