Biological Conservation has as its main purpose the widest dissemination of original papers dealing with the preservation of wildlife and the conservation or wise use of biological and allied natural resources. It is concerned with plants and animals and their habitats in a changing and increasingly man-dominated biosphere - in fresh and salt waters as well as on land and in the atmosphere. Biological Conservation publishes field studies, analytical and modelling studies and review articles. While its main basis is ecological the journal aims at fostering other relevant aspects of biological conservation and hopes thereby to encourage more research and publication of work which contributes to our knowledge and understanding of wildlife communities and their value to mankind. The journal's coverage of the discipline of conservation ecology is relevant to universities and research institutes while the emphasis on the practical application of the research results is important to all land managers, from those dealing with landscape design problems to those whose concern is nature reserve management. EcoSummit 2000 'Understanding and solving environmental problems in the 21st century' takes place 18-22 June 2000 in Halifax, Canada. The meeting will incorporate the 2000 ISEM International Meeting, the 2000 IEES Annual Meeting, the AEHMS 2000 Business Meeting and the inaugural meeting of the International Environmental Modeling & Software Society (IEMSS) For full details see http://www.elsevier.com/locate/ecosummit