Alastair Hugh Fitter CBE FRS (born 20 June 1948) is a British ecologist at the University of York.
[1] Fitter was educated at Oxford and at Liverpool, and came to the Department of Biology in York in 1972.
Fitter's research interests include plant and microbial behaviour in a changing world; functional ecology of roots and mycorrhizal associations under field conditions; root system architecture; carbon cycling in soil, especially in relation to mycorrhizas; phenological responses to climate change.
They have also collaborated on numerous field guides and other natural history books.
[4] He was appointed Commander of the Order of the British Empire (CBE) in the 2010 New Year Honours for services to environmental science.