Combine cranberries, sugar, and port in a large heavy saucepan. Bring mixture to a boil over high heat, stirring until sugar dissolves. Reduce heat to medium low; add chopped orange and chopped ginger and simmer until cranberries burst and mixture thickens slightly, about 15 minutes. Mix in dried cherries and blueberries. Cool fall berry conserve completely. Stir in pecans and candied ginger. Can be prepared 3 to 5 days in advance and stored tightly covered in the refrigerator.