World-renowned aquatic ecologist Sture Hansson will speak on "Humans, Seals and Cormorants: Competition for Common Fish Resources," Tuesday, Oct. 22, at 4:30 p.m. at Waterman Manor on the fifth floor of Waterman Building.

Hansson, professor of systems ecology in the Department of Ecology, Environment, and Plant Sciences at Stockholm University, is a member of the Royal Swedish Academy of Agriculture and Forestry. In his research, he mixes basic and applied issues with a general focus on aquatic environments, in particular, the Baltic Sea. His research studies are oriented around trophic interactions, predator-prey relationships, and competition and food web structures.

He studies the impact of large-scale human interferences in the food webs and how discharges of nutrients (nitrogen and phosphorus) influence food webs from the bottom up, while fisheries cause top-down impact.

Hansson is a James Marsh Professor-at-Large, a UVM program that appoints outstanding individuals of international distinction in the arts and humanities, sciences, social sciences, and applied fields as non-resident faculty.

His lecture is free and open to the public, and a reception will immediately follow.

Information: (802) 656-3186.