“Dune” is a warning about political heroes and their tribes

Frank Herbert, the author of the science-fiction novel “Dune” on which a new blockbuster film is based, would have been amused to learn that ecologists along the Oregon shore are ripping invasive European beachgrass out of the ground. As a young journalist in the late 1950s, Herbert derived his inspiration for a tale about a desert planet from watching ecologists plant the grass to control encroaching sand dunes. The scheme worked, maybe too well: residents of the coastal towns that the grass helped prosper now long for the beauty of the dunes and regret the unintended consequences for native flora and fauna.