Complex sentence: Warder Clyde Allee (June 5,1885--March 18,1955) was born in Bloomingdale, Indiana and is recognized to be one of the great pioneers of American Ecology.
Split into simpler sentences: Warder Clyde Allee (June 5,1885--March 18,1955) was an American ecologist. He is recognized to be one of the great pioneers of American ecology.