Announcements.

The article presents information about several awards presented by the American Society of Naturalists. The President's award of the American Society of Naturalists is given to the best paper that appeared in the journal "American Naturalist" in the preceding calendar year. The Edward Osborne Wilson Naturalist Award was established in 1997 on the occasion of Professor Wilson's retirement in recognition of his lifetime of outstanding contributions in the areas of ecology and evolutionary biology, including the study of social insects, biodiversity, and biophilia. The Sewall Wright Award, which recognizes a senior-level active researcher for significant and continuing contributions to the objectives of the American Society of Naturalists, was awarded in 2005 to Robert E. Ricklefs. The Young Investigators' Prizes recognize outstanding and promising work by investigators who received their doctorates in the three years preceding the application deadline or are in their final year of graduate school. The prizes include presentation of a research paper at the annual meeting of the American Society of Naturalists, reimbursement for travel to the annual meeting, and a $500 honorarium.