CARACAS, Oct 16 (Reuters) - Venezuela's opposition coalition refused to recognize the results of Sunday's gubernatorial elections where the ruling socialists won a surprise majority, raising the specter of more political turmoil in the oil-rich nation. The Democratic Unity's election campaign chief, Gerardo Blyde, demanded a complete audit of the 23 governor races and called on its candidates to lead 'street activities' on Monday in protest over the results.