Complex sentence: The release of "Persuasion" and the other adaptations had a tremendous effect on the popularity of Jane Austen, and membership in the Jane Austen Society of North America (JASNA) nearly doubled.
Split into simpler sentences: The release of "Persuasion" and the other adaptations had a tremendous effect on the popularity of Jane Austen. Membership in the Jane Austen Society of North America (JASNA) nearly doubled.