Oecologia publishes innovative ecological research of international interest. We seek reviews, advances in methodology, and original contributions, emphasizing the following areas: -Population ecology- Plant-microbe-animal interactions- Ecosystem ecology- Community ecology- Global change ecology- Conservation ecology- Behavioral ecology- Physiological Ecology. In general, studies that are purely descriptive, mathematical, documentary, and/or natural history will not be considered. The editors endorse the "Guiding principles in the care and use of animals" (approved by the Council of the American Physiological Society). All animal experiments reported in this journal must have been conducted in conformity with these principles. Editors are instructed to refuse papers in which evidence of the adherence of these principles is not apparent. Differences of opinion will be adjudicated by the Editorial Board. The acceptance of a paper implies that it has been scrutinized and recommended by at least two reviewers.