Peer reviewed publications
Eranga Galappaththi, Gayanthi A.Ilangarathna, Sithuni Mimasha, 2026. Co‑planning community‑based research: evidence,steps, and strategies. Current Opinion in Environmental Sustainability link
Gayanthi Ilangarathna, Eranga Galappaththi, Lynn M. Resler, Karen Dunmall, Santosh Rijal. 2026. Identifying impacts of non‑climatic factors on food security of Indigenous Peoples in the pan‑Arctic region. Regional Environmental Change link
Eranga Galappaththi, Sithuni Mimasha, Chrishma Perera, Gayanthi A.Ilangarathna, Hannah Garbutt 2025. Solvable constraints and unsolvable limits to global climate adaptation in coastal Indigenous food security. Coastal Futures link
Eranga Galappaththi, Chrishma Perera, Gayanthi A.Ilangarathna, Sithuni Mimasha, Hannah Garbutt. 2024. Food security policy and coastal climate adaptation among Indigenous and Local Communities. Marine Policy link
Gayanthi A.Ilangarathna, Lakshitha Ramanayake, Neranjan Senarath, Yasiru Ranasinghe et al. 2024. A dataset on the socioeconomic and behavioural impacts in Sri Lanka through multiple waves of COVID‑19. Data in Brief 53: 110063, link
Harshana Weligampola, Lakshitha Ramanayake, Yasiru Ranasinghe, Gayanthi Ilangarathna et al. 2023. Pandemic Simulator: An Agent‑Based Framework with Human Behavior Modeling for Pandemic‑Impact Assessment to Build Sustainable Communities. Sustainability 15: 11120, link
Thanuja Wijesiri, Gayanthi Ilangarathna, Wathsala Dedunupitiya, Janaka Ekanayake et al. 2023. The Impact of the Covid19 Pandemic on Women in the Households: Qualitative Analysis of Women’s Quality of Life and Mental Health. International Journal of Research and Innovation in Social Science 7:610‑622, link
Gayanthi A.Ilangarathna, Yasiru Ranasinghe, Harshana Weligampola, Erandi Attygalla, Janaka Ekanayake, et al. 2022. A Comprehensive Overview of Education during Three COVID‑19 Pandemic Periods: Impact on Engineering Students in Sri Lanka. Education Science 12: 197, link
Gayanthi A. Ilangarathna, Yasiru Ranasinghe, Harshana Weligampola, Erandi Attygalla, Janaka Ekanayake, et al., 2022. Artificial Intelligence framework for threat assessment and containment for COVID19 and future epidemics while mitigating the socioeconomic impact to women, children, and underprivileged groups. J.Natn. Sci. Foundation Sri Lanka 50 (Special): 251262, link
Pre-prints and archives
Naduni Nayanathara, Gayanthi A. Ilangarathna, Shashika D. Rathnayake, Jeevika Weerahewa, 2023. Estimation of Short run and Longrun elasticities of food import demand in Sri Lanka: The bound testing approach. AgEcon SEARCH, link
Non-peer reviewed publications
Artificial Intelligence Frameworks for Threat Assessment and Containment of COVID‑19 and Future Epidemics,2021. Hanthana Vision, Research Magazine of the University of Peradeniya, Volume 7, Issue 2, December 2021:28‑29 (Link)
Conference presentations
Ilangarathna G. A., and Wardropper C. Knowledge co-creation and smallholder farmers’ uptake of agroecological practices in Sri Lanka, 2026. 6th Annual Research Symposium, Department of Natural Resources and Environmental Sciences, University of Illinois Urbana-Champaign, Illinois, USA (Proposal presentation)
Ilangarathna G.A., Eranga Galappaththi, Lynn M Resler, Santosh Rijal 2025. Indigenous Knowledge‑based Adaptation Strategies for Arctic Food Insecurity amidst Non‑climatic stress: ICES’s Annual Science Conference, Klaipeda University, Lithuania (Oral)
Ilangarathna G.A., Eranga Galappaththi, Lynn M Resler, Santosh Rijal 2024. Unseen Challenges: Non‑climatic Factors Exacerbating Food Insecurity Among Arctic Indigenous Communities: SouthEastern Divison of the American Association of Geographers (SEDAAG) Conference, Greenville, South Carolina, USA (Oral)
Ilangarathna G.A, Wijesiri T, Senarath N, Ramanayake L, Yatigammana S. et al. 2023. Impact of Pandemic on Access to Health Resources and Mental Well‑being of Identified Diverse Groups in Sri Lanka During the Three Waves of COVID‑19: The 6th Global Health Conference, Sri Lanka (Oral).
Ilangarathna E.M.G.A., Nayanathara U.W.N.N., The Elasticities of Foreign Demand for Sri Lankan Agricultural Commodities, 2021. Peradeniya University International Research Sessions, Sri Lanka (oral)
Ilangarathna E.M.G.A., Weerahewa J., Senanayaka J., Jeevika Weerahewa, Balie J. An Ex‑ante Assessment of New Rice Breeding Technologies for Sri Lanka, 2019. 12th Annual Research Forum, Sri Lanka Agricultural Economics Association, Sri Lanka(oral)