For 10 points, name this process by which new species emerge.
Diane Dodd studied this process by feeding one population fruit flies only starch and others only maltose. The North American apple maggot's switch from hawthorne is an example of this process, which can also be the result of ploidy changes or hybridization. Adaptive radiation can result in the rapid occurrence of this process, which can occur as a result of differing flowering times or geographic isolation. This process comes in sympatric and allopatric types. For 10 points, name this process by which new species emerge.
Diane Dodd studied this process by feeding one population fruit flies only starch and others only maltose.
{speciation} [accept answers involving {creation} or {formation} of new {species} before “For 10 points”]