AUGUSTA, Maine — A youth movement was clearly on display Saturday in the girls state Class D championship as Southern Aroostook defeated Vinalhaven 54-37 for the school’s first title in 23 years. With no seniors on the roster, the talented Warriors of Dyer Brook showed athleticism could overcome experience as Southern Aroostook turned up its defensive intensity in the second half and benefited from a 15-0 run to start the fourth quarter to break open what had been a relatively tight game up until that point. As was the case all season, the Warriors received a balanced scoring attack, with four players scoring in double figures.