He is particularly known for his lasting contribution to the development of numerical methods in ecology .
John Thomas Curtis ( September 20 , 1913 -- June 7 , 1961 ) was an American botanist and plant ecologist .
John Thomas Curtis is particularly known for John Thomas Curtis ' lasting contribution to the development of numerical methods in ecology .
John Thomas Curtis ( September 20 , 1913 -- June 7 , 1961 ) was an American botanist and plant ecologist .