Sumatran orangutans play a critical role in the lowland rainforests of Sumatra and are considered a keystone species. As widely ranging fruit eaters, orangutans are important in dispersing seeds and maintaining diversity of rainforest woody plants. They also prune and aid in regenerating plant growth because they only choose to eat green leaves and stalks.
Ecosystem Impact: disperses seeds; keystone species
Species Used as Host:
- dipterocarp trees (Dipterocarpaceae)