Christine Ely Nuevo DiegoAlyssa B. StewartSara BumrungsriMahidol UniversityPrince of Songkla University2020-01-272020-01-272019-01-01Tropical Natural History. Vol.19, No.2 (2019), 88-102151397002-s2.0-85074075011https://repository.li.mahidol.ac.th/handle/20.500.14594/49863© 2019 by Chulalongkorn University. Sonneratia ovata is a true mangrove species that is dwindling in numbers. To save this species, understanding its ecology and reproduction is necessary. We hypothesized that S. ovata is self-compatible but is more reproductively successful with biotic pollination. To confirm that, a pollination experiment was conducted and reproductive success was measured through pollination success, fruit set, and seed set. Floral visitors were observed. Pollination success in the hand-self treatment was higher compared to all other treatments, confirming its selfcompatibility. However, pollination success was not significantly different for non-hand-pollinated treatments. Fruit set was higher in the animal-pollination treatments than in the spontaneous autogamy treatment, possibly due to herkogamy. Seed set results were similar to fruit set results for non-hand-pollinated treatments, indicating higher reproductive success when animal-pollinated. Only Macroglossus minimus was caught near S. ovata flowers, suggesting that S. ovata may be dependent on a single species of bat for pollination. Therefore, it is important to protect, not only this mangrove species, but also their bat pollinators and the forests where these bats roost.Mahidol UniversityAgricultural and Biological SciencesEarth and Planetary SciencesEnvironmental ScienceArticleSCOPUS