The highly successful IV International Wetlands Conference was organised by the International Association of Ecology (INTECOL) at Columbus (Ohio, USA) during 13-18 September 1992. This meeting was the largest ever gathering of wetland scientists with over 900 participants from over 50 countries (Mitsch 1993). More than 500 papers were presented in oral and poster sessions, in addition to 13 symposia. Seventy-two symposium papers are being published in a volume by ...