G. David Tilman (formerly Titman) is a prominent Americanecologist. Tilman is best known for his work on the role of resource competition in community structure and on the role of biodiversity in ecosystem functioning. Ecology is the branch of science that studies the distribution and abundance of living organisms, and the interactions between organisms and their environment. ... Rainforests are among the most biodiverse ecosystems on earth Biodiversity or biological diversity is the variation of taxonomic life forms within a given ecosystem, biome or for the entire Earth. ... An ecosystem, a contraction of ecological and system, refers to the collection of biotic and abiotic components and processes that comprise and govern the behavior of some defined subset of the biosphere. ...
David Tilman is Regent's Professor and McKnight Presidential Chair in Ecology at the University of Minnesota. He is also director of the Cedar Creek Natural History Area Long-term Ecological Research station. Tilman has been a Guggenheim Fellow, a Fellow of the American Association for the Advancement of Science, a Fellow of the American Academy of Arts and Sciences and as a member of the National Academy of Science.[1] In 2000 Tilman was designated the Most Highly Cited Environmental Scientist of the Decade by Essential Science Indicators.[2] Washington Avenue Bridge at night The University of Minnesota, Twin Cities, almost always abbreviated U of M, and sometimes referred to as The U by locals, is the oldest and largest part of the University of Minnesota system. ... Guggenheim Fellowships are awarded annually by the John Simon Guggenheim Memorial Foundation to those who have demonstrated exceptional capacity for productive scholarship or exceptional creative ability in the arts. ... The American Association for the Advancement of Science (AAAS) is an organization that promotes cooperation between scientists, defends scientific freedom, encourages scientific responsibility and supports scientific education for the betterment of all humanity. ... The House of the Academy, Cambridge, Massachusetts. ... President Harding and the National Academy of Sciences at the White House, Washington, DC, April 1921 The National Academy of Sciences (NAS) is a corporation in the United States whose members serve pro bono as advisers to the nation on science, engineering, and medicine. ...