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Issue Date	Title	Author(s)
2020	The Ants (Hymenoptera, Formicidae) of Sri Lanka: a taxonomic research summary and updated checklist	Dias, R.K.S.; Guénard, B.; Akbar, S.A.; Economo, E.P.; Udayakantha, W.S.; Wachkoo, A.A.
2020	Tetraponera modesta, a new pseudomyrmecine ant record (Hymenoptera: Formicidae) for Sri Lanka	Dias, R.K.S.; Udayakantha, W.S.; Thotagamuwa, A.; Akbar, S.A.
2020	Monitoring of water quality variation trends in a tropical urban wetland system located within a Ramsar wetland city: A GIS and phytoplankton based assessment	Wijeyaratne, W.M.D.N.; Nanayakkara, D.
2020	Use of liver histological alterations and erythrocytic nuclear abnormalities of two native fish in Kelani River, Sri Lanka as biomarkers for pollution impact assessments	Ruvinda, K.; Pathiratne, A.
2020	Macrophytes as indicators of the ecological status of a tropical rehabilitated wetland ecosystem: Application of multivariate statistics and Ecological State Macrophyte Index (ESMI)	Wijeyaratne, W. M. D. N.; Bellanthudawa, Aravinda
2020	Toxic hazards of industrial waste receiving canal system in the lower catchment of Kelani River basin, Sri Lanka	Kuruppuarachchi, H.; Pathiratne, A.
2020	Comparison of Sensitivity of Tropical Freshwater Microalgae to Environmentally Relevant Concentrations of Cadmium and Hexavalent Chromium in Three Types of Growth Media	Munagamage, T.; Rathnayake, I.V.N.; Pathiratne, A.
2020	Application of cytogenetic model Allium cepa for screening potential cytogenotoxicity of herbal-based hair dyes	Nawalage, K. S.; Pathiratne, A.
2020	Efficacy of Terminalia arjuna mature leaf powder and Phyllanthus emblica bark powder to reduce nitrate: N and total hardness in groundwater in karstified limestone aquifer	Wijeyaratne, W. M. D. N.; Shanthamareen, M.
2020	Chromosomal Abnormalities in Allium cepa Induced by Treated Textile Effluents: Spatial and Temporal Variations	Wijeyaratne, W. M. D. N.; Wickramasinghe, P. G. M. U.