Mariano Roy M. Duya, Ph.D.

Assistant Professor 5
Ph.D. in Biology, University of the Philippines Diliman, 2019
Research Lab: Biodiversity Research Laboratory


Biology 117 (Vertebrate Biology)

Biology 263 (Terrestrial Ecology)
Biology 265 (Advanced Biogeography)


Mariano Roy M. Duya holds a Master’s degree in Wildlife Studies at the Institute of Biological Sciences, University of the Philippines Los Baños. He is taking up a Ph.D. in Biology (by research program) at the Institute of Biology, University of the Philippines Diliman. He is currently a faculty and a museum curator of the Wildlife Vertebrate Museum of the Institute of Biology. His research interest is on biogeography, ecology, and taxonomy of wildlife vertebrates, particularly on terrestrial mammals. He is currently working on understanding plant-bat interaction in tropical lowland forest and the impact of forest fragmentation and ecosystem services of fruit bats. As a senior biologist working with the Diliman Science Research Foundation Inc., he leads the project implementation and research focused on biodiversity assessments and monitoring of wildlife across the Philippines and building the capability of partner stakeholders for effective biodiversity monitoring. He is also involved in Long-term Ecological Research (ILTER) plots in the country, focusing on long-term ecological research on Philippine fruit bats. He also studies biology and works on the conservation of the Philippine Eagle, Tarsier, and small mammals among other key wildlife species in the Philippines. He has authored and co-authored local and international publications on Philippine wildlife. He is currently a member of the IUCN SSC Small Mammal Specialist Group and the Philippine RedList Committee (PRLC) of the DENR Biodiversity Management Bureau and Chairs the Philippine Mammal technical working group


Jay S. Fidelino(M.S. Biology)
Simeon Gabriel F. Bejar(M.S. Biology)

  • Duya, M.R.M., L.R. Heaney, E.S. Fernando, P.S. Ong. In press. Fruit bat assemblage in different lowland forest types in the Northern Sierra Madre Mountains, Philippines. Acta Chiropterologica.
  • Siler, C.D., P. Alviola, R.D. Baniqued and M.R. Duya. 2012. Natural history notes on diet of Brachymeles boulengeri. Herpetological Review. 43(1):130.
  • Ong, P.S., M. Dg Pedregosa, M.R. Duya, N. Ibuna, M.H. Valenzuela, and R.E. Fernandez. 1997. Non- Volant Mammals of the Central Sierra Madre: Aurora and Northern Quezon Province. In: Proceedings of the National Academy of Science and Technology. Centennial Celebration and the 20th Annual Scientific Meeting of the Academy; Westin Philippine Plaza, Manila. July 8-9, 1998