Deceptive berries boost a cloning yam's bird-driven spread

A rare asexual yam, Dioscorea melanophyma, produces berry-like bulbils that trick birds into dispersing vegetative clones; birds perceive bulbils as real fruit, enabling endozoochory-based spread with a median distance of about 230 meters and occasional transfers beyond 500 meters, helping seedless plants expand without seeds.