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John Ernst Weaver ( 5 May 1884 – 8 June 1966) was an American botanist, prairie ecologist, and university professor. Weaver was born in Villisca, Iowa. He attained a PhD at the University of Minnesota, 1916. He was "Instructor of Botany" at Washington State College from 1912 to 1913. In 1915 he became "Assistant professor of Botany" at the University of Nebraska where he was a plant ecology professor from 1917 until his retirement in 1952. Weaver published many works regarding vegetation and ecology of prairies. In 1929 he and Henry Chandler Cowles published the first American ecology text book. He was a member of the Botanical Society of America, the Ecological Society of America, and the Nebraska Academy of Sciences. ==Books== *Study of ''Amygdalus persica''. Unpublished thesis (1910) *A Study of the vegetation of Southeastern Washington and Adjacent Idaho. Lincoln, Nebraska. (1917) () *The ecological relations of roots. - Carnegie institution of Washington, Publ. 286. (1919) () *Root development in the grassland formation, a correlation of the root systems of native vegetation and crop plants. Washington, Carnegie Institution of Washington (1920) () *Development and activities of roots of crop plants; a study in crop ecology. Carnegie institution of Washington with franc C Jean and John W. Crist (1922) *Experimental vegetation; the relation of climaxes to climates, by Frederic Edward Clements (1874-1945) and J.E. Weaver. Washington, Carnegie Institution of Washington, 1924. *Root development of field crops, by J.E. Weaver. New York () McGraw-Hill book company, inc., 1926. () *Root Development of Vegetable Crops. with William E. Bruner. McGRAW-HILL BOOK COMPANY, Inc. (1927) () *Relative efficiency of roots and tops of plants in protecting the soil from erosion. by Joseph Kramer (1890-?) and J.E. Weaver. (), Neb. : Printed by authority of the state of Nebraska, (1936) *Plant Ecology. with F.E. Clements. New York, London, McGraw-Hill Book Company, inc. (1938) *North American Prairie. Lincoln, Neb., Johnsen Pub. CO (1954) *Grass country of the Great Plains: Their Nature and Use. Lincoln, Neb., Johnsen Pub. CO with F.W. Albertson (1956) *Native vegetation of Nebraska. Lincoln, University OF Nebraska press (1965) *Prairie plants and their environment; a fifty-year study in the Midwest. Lincoln, University of Nebraska Press (1968) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「John Ernest Weaver」の詳細全文を読む スポンサード リンク
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