Rare British butterfly with yellow wings is unlike any other, DNA reveals
A genetic study has confirmed that the British swallowtail butterfly is a unique, distinct population found only in the UK. While the species is genetically isolated and shows signs of inbreeding, researchers found it has not yet accumulated significant harmful mutations.
Why it matters
Understanding the genetic uniqueness of local populations is vital for conservation efforts, especially for species with limited habitats and vulnerability to environmental change.
The British swallowtail butterfly is the UK's only native swallowtail and largest native butterfly. It may look similar to other swallowtails found across Europe, but its DNA tells a different story.A new study has found that the British swallowtail, also known as Papilio machaon britannicus, is a genetically distinct population that is found nowhere else in the world.The butterfly which is known for its light yellow-and-black wings with blue and red markings, is mainly found in the marshes and wetlands of eastern England, particularly the Norfolk Broads.
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