The mantled howler is important to the rainforest ecology as a seed disperser and germinator. It is a seed disperser and pollinator, as well as a prey item for carnivores. Clark's nutcracker is the primary seed disperser for whitebark pine ("Pinus albicaulis"). The Panamanian white-faced capuchin is important to its ecosystems as a seed and pollen disperser. Sulawesi red-knobbed hornbill serves as an effective seed disperser for "C. odorata". In microscopy, an endoscope was demonstrated using the two-dimensional spectral disperser. A variant of the randomness extractor with weaker properties is the disperser. The Egyptian fruit bat serves as a seed disperser of large and small seeds. The poisonous berries are harmless to birds, the plants' primary seed disperser. The berries are harmless to birds, the plant's primary seed disperser. However, there was no difference in reproductive success of disperser males and non-disperser males. In South Africa, the red-winged starling is an important disperser of the introduced "Acacia cyclops". The species is thought to be an important disperser of fruit seeds. It is the major seed disperser for "Durio graveolens", a species of durian. Due to their diet the Bourke's parrot works as a known seed disperser.