American Society of Naturalists

Featured Photographs

“Natural selection on anti-helminth antibodies in a wild mammal population” (Photo: Alexandra M. Sparks)

“An empirical and mechanistic explanation of abundance-occupancy relationships for a critically endangered nomadic migrant” (Photo: Henry Cook)

“Metabolic theory and the temperature size rule explain the temperature dependence of population carrying capacity” (Photo: Joey Bernhardt)

“Purring crickets: The evolution of a novel sexual signal” (Photo: E. Dale Broder)

Special Announcements

Letter to Secretary Azar on the Scientific Understanding of Sex and Gender

Posted on Oct 31, 2018

As scientists, the Joint Societies write to express our concerns about the attempt by the Department of Health and Human Services (HHS) to claim that there is a biological basis to defining gender as a strictly binary trait (male/female) determined by genitalia at birth.

Nominations for the 2019 Sewall Wright Award, Due January 15

Posted on Oct 23, 2018

The Sewall Wright Award is given annually and honors a senior but active investigator who is making fundamental contributions to the Society's goals in promoting the conceptual unification of the natural biological sciences. Nominations due January 15.

Nominations for the 2019 Edward O. Wilson Naturalist Award, Due January 15

Posted on Oct 24, 2018

The Edward O. Wilson Naturalist Award is given to an active investigator in mid-career who has made significant contributions to the knowledge of a particular ecosystem or group of organisms. Nominations are due January 15, 2019.

Applications invited for the 2019 ASN Jasper Loftus-Hills Young Investigator’s Awards

Posted on Nov 5, 2018

Nominations/Applications for the 2019 Young Investigator Award are due January 15, 2019

Applications for the 2019 ASN Student Research Awards, due January 31

Posted on Oct 24, 2018

The ASN Student Research Awards support research by student members that advances the goals of the society: the conceptual unification of ecology, evolution, and behavior. Each award consists of a $2,000 check to the candidate. Deadline for submission of all materials is January 31, 2019. See rest of announcement for details.