Thesis (BS Biology) -- University of the Philippines Mindanao, 2004

Insects hovering around sago inflorescence during anthesis were collected in three areas of Agusan del Sur (Tagbayangbang in Bunawan, Sta. Cruz in Rosario, and Bah-bah in Prosperidad). Aerial net sweeps revealed two hymenopterans, Apis dorsata and Polistes sp., as the most predominant flower visitors. A. dorsata was also found to carry more pollen per individual followed by Polistes sp. and dipterans. Quantity of pollen colleted from A. dorsata did not vary significantly with places of collection. A bumble bee (Bombus sp.) was the largest winged insect capture and obviously, can carry the most pollens. The ovoid sago pollens stuck to the collected insects? bodies and appendages reveal the sticky characteristic of the propagules supporting earlier reports that sago palms may be insect-pollinated rather than by anemophily