Flying foxes have important roles as seed dispersers and pollinators. The bats are key pollinators and seed dispersers for native trees and plants. Introduced plants are also facilitated by native pollinators, dispersers, and mycorrhizae. Their diets consist of fruit and nectar, making them important seed dispersers and pollinators. The genus Pteropus are considered to be important seed dispersers and pollinators. Forest-dwelling species of hornbills are considered to be important seed dispersers. In Amazonia, crickets and ants are important secondary dispersers. Tamarins act as seed dispersers in tropical ecosystems. Dispersal traits will benefit the dispersers over non-dispersers. Toucans are poor dispersers, particularly across water, and have not reached the West Indies. Many types of animals are seed dispersers. They mainly feed on fruits and seeds, and are important seed dispersers. Thus, they are important seed dispersers for certain plants. They are important dispersers of many forest tree species. They act as important seed dispersers as they collect fruit and other food items.