Insects feeding on tropical forest seeds

Tree fruits provide a great source of food and shelter for many insects living in tropical forests. 

This online resource provides information about the insects that feed on the fruit of Dipterocarps trees in tropical rainforests.

Dipterocarps are tropical, lowland trees found dominating the rainforests of South-East Asia. 

Dipterocarp species are economically important not just for timber but for oil from the fruit.

Many dipterocarp species are endangered because of illegal logging and habitat conversion. The fruit is also destroyed by insect predators, which effects germination and potentially the future of many species. 

  • Dipterocarp seeds
    Dipterocarp - insect seed predator database

    The database gives all known insect-host associations of insect and fruit of dipterocarp species (excluding saprophages). Discover the identity of insect -seed predators and their dipterocarp hosts by searching the database.

  • Lepidoptera pupa in Dipterocarpus obtusifolius
    The system under study

    Individual dipterocarp can trees can produce millions of fruit each, but these are often destroyed by insects.

  • Fig
    The dipterocarp fruit

    Dipterocarp fruit differ in shape and size depending on the species, and are valuable for their oil which can be used in essential oils, balsam and resins.

  • Lepidoptera pupa in Dipterocarpus obtusifolius
    Seed predation

    Dipterocarp fruit is eaten by a variety of vertebrates and invertebrates, particularly beetles and moths.

  • Collecting dipterocarp insects
    Collecting the fruit

    Collecting the fruits at different stages of development holds many challenges.

  • Damnus tenebriosa
    Taxonomy of dipterocarp seed weevils

    So far weevils of the genera Araecerus, Alcidodes, Nanophyes, Niphades, Damnux, Diplophyes, Coccotrypes, Dryocoetiops, Hypothemnus, Xyleborinus, Sitophilus and Trochorhopalus have been recorded from dipterocarp seeds.

  • Researcher taking samples from a tree
    The research team

    Meet the dipterocarp research team