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PhD - University of Ballarat (Federation University of Australia), Victoria, Australia
MPhil - Postgraduate Institute of Agriculture, University of Peradeniya
BSc Special Degree in Zoology - University of Sri Jayawardanapura, Sri Lanka
Catchment management and stream Ecology
Invasive species Ecology
Environmental Issues Related to Water and Land Pollution and their Conservation
Development of bioindicators for predicting freshwater ecosystem health.
Principal Investigator- Project “Critical assessment of hydrogeochemical processes in Walawe River Basin using geochemical and stable isotope signatures.” Research Grant (SUSL/RG/2019/01)
Principal Investigator – Research project on “Evaluation of water quality and macroinvertebrate compositon in relation to catchment land use practices in Uma Oya and Badulu Oya sub catchments in Upper Mahaweli Catchment Area (UMCA) in Sri Lanka.” Funded by National Research Council of Sri Lanka (NRC 13-160)
Co-Investigator -“Investigating geochemical factors contribute to CKDu prevalence area in Uva Province and identification of microbes for residual pesticide detoxification in water and soil environment” Development of Research (DOR) grant scheme of the Accelerating Higher Education Expansion and Development (AHEAD) project.
Collaborative scientist - Research project on health behaviour among people in Southern Sri Lanka. Duke-Ruhuan Collaborative Research Center, Faculty of Medicine, Galle. The Project was funded by the Hubert Yeargen Center for Global Health, Duke University, USA.
BOOKS AND BOOK CHAPTERS
JMCK Jayawardana (2016) Water Resource and the Aquatic Environment: Current Issues and Options for Sustainable Management, NOVA Science Publishers, Inc. NY. ISBN: 978-1-63485-881-6.
J.M.C.K. Jayawardana (2010) Role of riparian vegetation and instream vegetation in macroinvertebrate production in stream restoration. (Eds. Gillian D. Hayes and Timothy S Flores) Stream restoration: Halting disturbances, Assisted recovery and managed recovery. NOVA Science Publishers, Inc. NY. ISBN:978-1-60876-450-1. PP.83-109
B.Perera and J.M.C.K. Jayawardana (2011) Social determinants of health inequalities.(Eds. H.M Bandara and K.R.H.L. Gunesekara). Essays in Social Sciences: “Modelling Social Phenomena for the 21st Century.” Godage International Publishers, Sri Lanka pp17- 22. ISBN:978-955-30-3226-3
EPN Udayakumara, BARH Dias, JMCK Jayawardana, S Malavipathirana and DATWK Dissanayaka (2022). Effects of Soil Erosion on Water Quality: A Case Study from Uma-Oya Catchment, Sri Lanka. (Eds. Indrajit Pal, Rajib Shaw, Sangam Shrestha, Riyanti Djalante, and Ratu Apenisa W.C. Cavuilati) Disaster Resilience and Sustainability. Elsivier Inc. ISBN: 978-0-323-85195-4
JOURNAL ARTICLES (Indexed in Science Citation Index / SCI _E)
Senarathne, S., Jayawardana, J.M.C.K., Edirisinghe, E.A.N.V. et al. (2020) Influence of regional climatic on the hydrogeochemistry of a tropical river basin—a study from the Walawe river basin of Sri Lanka. Environ Sci Pollut Res. https://doi.org/10.1007/s11356-020-11712-0
Sachintha Senarathne, J.M.C.K. Jayawardana, Rohana Chandrajith, E.A.N.V. Edirisinghe (2020) Geochemical and isotope evidence for groundwater mineralization in a semi-arid river basin, Sri Lanka Applied Geochemistry https://doi.org/10.1016/j.apgeochem.2020.104799
W.D.T.M Gunawardhana, J.M.C.K Jayawardhana (2018), E.P.N Udayakumara. Spatial and Temporal Variation of Water Quality and BioindicatorsinBaduluOya; Implications of catchment impacts. Journal of National Science Foundation of Sri Lanka. 46(1), pp.51–67. DOI: http://doi.org/10.4038/jnsfsr.v46i1.8265
J.M.C.K. Jayawardana, W.D.T.M.Gunawardana, E.P.N. Udayakumara and M. Westbrooke (2017). Land use impacts on river health in the Uma Oya Sri Lanka: Implications of spatial scales. Journal of Environment Monitoring and Assessment. 189:192
Perera, B. Ostbye T, Jayawardana C. K. (2009) Neighbourhood environment and self-rated health among adults in Southern Sri Lanka, International Journal of Environmental Research and Public Health, 6, 2102-2112.
Senarathne, S.L, Jayawardana, J.M.C.K, Edirisinghe, E. A. N. V, Rohana Chandrajith (2019). Characterization of groundwater in Malala River Basin Sri Lanka using geochemical and isotope signatures. Journal of Groundwater for sustainable development vol 9 https://doi.org/10.1016/j.gsd.2019.100225
JMCK Jayawardana, Martin Westbrooke, Michael Wilson and Cameron Hurst (2006). Macroinvertebrate communities in Phragmites australis (Cav.) Trin. Ex Steud. reed beds and open bank habitats in central Victorian streams in Australia. Hydrobiologia 568,169-185.
J.M.C.K Jayawardana, Martin Westbrooke, Michael Wilson and Cameron Hurst (2006). Macroinvertebrate communities in willow (Salix spp.) and reed beds (Phragmites australis ) in central Victorian streams in Australia. Marine and Freshwater Research 57, 429-439.
R.G.I. Sumudumali, J.M.C.K. Jayawardana (2021). Approaches of Biological Monitoring of Aquatic Ecosystems with Special Reference to Macroinvertebrates and Pesticide Pollution. Environmental Management https://doi.org/10.1007/s00267-020-01423-0
Iresha Sumudumali, JMCK Jayawardana, Udara Hasintha Piyathilake, Chameen Randika, EPN Udayakumara, Sunethra Kanthi Gunathileka, Sarath MalavipathiranaPesticide (2021). What drives the pesticide user practices among farmers in tropical regions? A case study in Sri Lanka. Environmental Monitoring and Assessment (Accepted)
Senarathne S, Jayawardana JMCK, Chandrajith R. Influence of climate on groundwater fluoride in different climatic domains in a hard rock terrain of Sri Lanka: implications to community health. Environ Geochem Health. 2021 Oct 24. doi: 10.1007/s10653-021-01090-y. Epub ahead of print. PMID: 34689287.
OTHER PEER-REVIEWED INDEXED JOURNAL ARTICLES
Kumarasiri, A.D.T.N., Udayakumara, E.P.N. & Jayawardana, J.M.C.K. Impacts of soil erosion and forest quality on water quality in Samanalawewa watershed, Sri Lanka. Model. Earth Syst. Environ. (2021). https://doi.org/10.1007/s40808-021-01082-y
D. U. H. Piyathilake, R. G. I. Sumudumali, E. P. N. Udayakumara, L. V. Ranaweera, J. M. C. K. Jayawardana, S. K. Gunatilake (2020). Modelling predictive assessment of soil erosion related hazards at the Uva province in Sri Lanka. Modeling Earth Systems and Environment https://doi.org/10.1007/s40808-020-00944-1
Nadeesha Dilani Hettige, Shyamali Weerasekara, Dilindra Chandrasiri, Chandramali Jayawardene (2019/2020), Plankton Diversity in Bomuruella Reservoir, Nuwara-Eliya: A preliminary survey. Volume 8 Issue No. 2
Dias, BARH, Udayakumara, EPN, Jayawardana JMCK, Malevipathirana, S. Dissanayake, D.A.T.W.K. (2019). Assessment of soil erosion in UmaOya catchment, Sri Lanka. Journal of Environmental Professionals Sri Lanka. 8 (1), 39-51
Wickramasinghe, Y.H.S.D. and Jayawardane, J.M.C.K. (2018). Potential of aquatic macrophytes Eichhornia crassipes, Pistia stratiotes and Salvinia molesta in phytoremediation of textile wastewater. Journal of Water Security Vol. 4 Article Number: jws2018001 DOI: https://doi.org/10.15544/jws.2018.001
J.M.C.K. Jayawardana, T.R. Jayathunga and E.A. Edirisinghe (2016). Water quality of Nilwala River, Sri Lanka in relation to land-use practices. Sri Lanka Journal of Aquatic Sciences 21(2): 77-94
J.M.C.K Jayawardana (2015). A novel littoral habitat from a riparian invader: implications on stream secondary production and riparian management. The Victorian Naturalist 132 (4) 96-107.
J.M.C.K Jayawardana C. Rubasinghe, D.N.M. Dahanayaka and S. Pilapitiya (2013). An evaluation of breeding conditions of flies and optimum food waste rations for effective composting in the municipal solid waste composting site in Southern Sri Lanka. The International Journal of Environment and Waste Management (IJEWM). 12 (4),364-381.
J.M.C.K Jayawardana (2011). Littoral macroinvertebrates in relation to native and exotic riparian vegetation in streams of central Victoria, Australia. International Journal of Energy Environment and Economics 19 (6), 635-655.
J.M.C.K Jayawardana, Martin Westbrooke and Michel Wilson. (2010) Leaf litter decomposition and utilisation by macroinvertebrates in a central Victorian River in Australia. The Victorian Naturalist 127(4), 104-114.
22. J.M.C.K Jayawardana and Martin Westbrooke. (2010) Effects of riparian vegetation changes on the functional organization of macroinvertebrates in central Victorian streams, Australia. The Victorian Naturalist 127(2)36-46.
B.Perera, M.R. Torabi, C. Jayawardana and R. Perera (2010) Knowledge of and attitudes toward smoking, smoking patterns and perceived stress in Sri Lankan undergraduates. International Journal of Child Health and Human Development 3 (1), 49-56.
J.M.C.K Jayawardana and U.Edirisinghe, L.P. Silva and K.G. Nandasena (2001). A case study on physical and biological factors in relation to mosquito emergence in abandoned gem pits in Elahera, Sri Lanka. Tropical Agricultural Research 13, 401 - 410.
J.M.C.K Jayawardana and U.Edirisinghe (2000). Morphology, Biology and Predatory efficiency of Poecilia reticulata for mosquito larvae. Tropical Agricultural Research 12,308 -315.
J.MC.K.Jayawardana and M.V.E. Attygala (1999). Osmoragulation of some fishes from the Bolgoda Estuary. Vidyodaya Journal of Science, 1, 65 -75.
CONFERENCE PROCEEDINGS AND ABSTRACTS
Vishma Perera, Anushka Upamali Rajapaksha, J.M.C.K. Jayawardana, S.K. Gunatilake, Hasintha Wijesekara, Yong Sik Ok,Meththika Vithanage (2020). Amino Functionalized Invasive Plant Derived Biochar for Sorptive Removal of Hexavalent Chromium in Aqueous Media-Effect of pH. ICHMET 2020,20th International conference on the Heavy metals in the Environment. Oc26-28 2020,Seol, Korea.
Thisuru Nayanathara, EPN Udayakumara, JMCK Jayawardana, E. P. N. Udayakumara, S. K. Gunatilake, (2020). Relationship of water quality with soil erosion and forest healthiness in selected sub-catchments of samanalawewa watershed (2020). 5th ICMR-2020 Interdisciplinary Conference of Management Researchers,Faculty of Management Studies,Sabaragamuwa University of Sri Lanka
S.L. Senarathne, J.M.C.K. Jayawardana, Rohana Chandrajith, E.A.N.V Edirisinghe (2020). Hydrogeochemical and Isotopic Evidence of Groundwater Evolution and Characterization in Upper Walawe Basin, Sri Lanka. Japan Geoscience Union, American Geophisical Union. (https://confit.atlas.jp/guide/event/jpgu2020/session/AHW30_28PM2/advanced
S. Senarathne, C. Jayawardana, R. Chandrajith, V. Edirisinghe (2020). Evaluation of Groundwater Quality and Suitability in Lower Walawe Basin for Drinking and Irrigation. Annual Research Congress, Postgraduate Institute of Science, University of Peradeniya, Sri Lanka
Sachintha Senarathne, J.M.C.K. Jayawardana, Rohana Chandrajith, E.A.N.V Edirisinghe (2020). Assessment of groundwater quality and associated geochemical processes in a tropical watershed –Walawe River basin, Sri Lanka. Annual Research Session, Sabaragamuwa University of Sri Lanka
D. U. H. Piyathilake, R. G. I. Sumudumali, E. P. N. Udayakumara, L. V. Ranaweera, J. M. C. K. Jayawardana, S. K. Gunatilake (2020). Prioritization of watersheds in Uva province, Sri Lanka on the basis of soil erosion hazard using InVEST SDR Model. Postgraduate Institute of Science Research Congress (RESCON 2020), Sri Lanka , University of Peradeniya, Sri Lanka, November 2020.
Sumudumali RGI, Piyathilake IDUH, Randika JLPC, Jayawardana JMCK, Udayakumara EPN and Gunatilake (2020). Farmers’ knowledge, perception, and practices on agrochemical usage in upper Uma Oya and Kumbukkan Oya watersheds in Sri Lanka. International Conference on Applied and Pure Sciences (ICAPS 2020), Faculty of Science, University of Kelaniya, Sri Lanka 26-Nov-20
Sumudumali RGI, Piyathilake IDUH, Randika JLPC, Jayawardana JMCK, Udayakumara EPN and Gunatilake (2020). Agrochemical usage and farmers perception on selecting pesticides in Upper Kumbukkan Oya Watershed in Sri Lanka Interdisciplinary Conference of Management Researchers 2020 (ICMR 2020), Faculty of Management Studies, Sabaragamuwa University of Sri Lanka 26-Nov-20
Sumudumali RGI, Piyathilake IDUH, Randika JLPC, Jayawardana JMCK, Udayakumara EPN and Gunatilake (2020). Farmers knowledge and perception of pesticide exposure towards health and environmental hazards in selected areas in Uva province, Sri LankaAnnual Research Session, 2020, Sabaragamuwa University of Sri Lanka (ARS 2020) 16-Dec-20
Sumudumali RGI, Piyathilake IDUH, Randika JLPC, Jayawardana JMCK, Udayakumara EPN and Gunatilake SK(2020) Farmer Knowledge and Perception on of Pesticide Exposures Towards Health and Environmental Hazard in Selected Areas in Uva Province, Sri Lanka RGI Conference
B.A.R.H. Dias, E.P.N. Udayakumara, J.M.C.K. Jayawardana, S. Malavipathirana and D.A.T.W.K. Dissanayake (2019) Relationship Between Soil Erosion And Water Quality, Pesticide Residues of Uma Oya Watershed, Sri Lanka. International Symposium on Disaster Resilience and Sustainability Development 7-8 March 2019 Asian Institute of technology, Thailand
Sandanayake, SL, Wanniarchchi DNS, Jayawardana JMCK and Ranaweera LV (2019).Shallow groundwater geochemistry in a selected area of Samanalawewa catchment. ICSUSL 2019 Frpntier Technologies for a sustainable future. 7th International Conference of Sabaragamuwa University of Sri Lanka.14 to 15th November 2010, Sabaragamuwa University of Sri Lanka. Pp.145
Oshadi HDCL, Jayawardana JMCK and Mendis BRC (2019) Sediment characteristics and status of water quality in North region of Negambo Estuary Sri Lanka. 7th International Conference of Sabaragamuwa University of Sri Lanka.14 to 15th November 2010, Sabaragamuwa University of Sri Lanka. Pp.138
N.D. Hettige, K.A.W.S. Weerasekara, E.G.D.N. Chandrasiri, J.M.C.K. Jayawardene (2018). Plankton Diversity in Bomuruella Reservoir, Nuwara-Eliya: A preliminary survey. International Research Symposium on Pure and Applied Science, 2018, Faculty of Science, University of Kelaniya, Sri Lanka.
Ranathunga RADC, Tharanga NAP, Nimalrathne TS, Udayakumara EPN, Jayawardana JMCK, Rathnayaka RMUSK, Welikanda BGHSS, and Udeshani (2018) Assessment of drinking water quality in post flood scenario in Rathnapura divisional secretariat division, Sri Lanka 77 Proceedings of Wayamba University International Conference WinC, 24- 25 august 2018 pp77
J.M.C.K Jayawardhana, W.D.T.M Gunawardhana , E.P.N Udayakumara, M. Westbrooke (2017). Effect of catchment disturbance on river health in two agricultural catchment in Sri Lanka.20th International River Symposium and Environmental flows conference held in 18-20th Brisbane, Australia.
Gunawardhana W.D.T.M, Jayawardhana J.M.C.K, Udayakumara E.P.N. (2015), Impacts of agricultural practices on water quality in Uma Oya catchment area in Sri Lanka. Elsevier Procedia Food Science, (6) 339–343
Weerasekara, K.A.W.S., Hettige, N.D., Azmy, S.A.M., Priyadarshani, J.P.M.L. and Jayawardene, J.M.C.K.,(2017). Evaluation of the status of water pollution at Beruwala, Hikkaduwa and Tangalle Fishery Harbours, Sri Lanka,3rd National Symposium on Marine Environment, Marine Environmental Protection Authority, pp.43
Hettige, N.D., and Jayawardena, J.M.C.K.,2011.Analysis of impact of compost bin method in Lunawa Project area, Proceedings of the 16th International Forestry and Environment Symposium, Department of Forestry and Environmental Sciences, University of Sri Jayewardenepura, Sri Lanka,pp.21.
Wickramasinghe, Y.H.S.D. and Jayawardane, J.M.C.K.(2015). Potential of Eichhornia crassipes, Pistia stratiotes and Salvinia molesta in Phytoremediation of Textile Waste Water. Annual Research Symposium, University of Colombo, October, 2015
Gunawardhana W.D.T.M, Jayawardana J.M.C.K, Udayakumara E.P.N (2015), Impacts of intensive agricultural practices on water quality in Uma Oya catchment area in Sri Lanka, 5th International Conference of Sabaragamuwa University of Sri Lanka (ICSUSL 2015)
Gunawardhana W.D.T.M, Jayawardana J.M.C.K, Udayakumara E.P.N (2015), Relationship between catchment land-use practices and stream water quality in Uma Oya catchment, PGIS Research Congress 2015, University of Peradeniya
Gunawardhana W.D.T.M, Jayawardhana J.M.C.K, Udayakumara E.P.N. (2016), Impacts of agricultural practices on water quality in Badulu Oya catchment area in Sri Lanka. Fifth International Symposium on Water Quality and Human Health : Challenges Ahead 05-06 August 2016, PGIA, University of Peradeniya.
W.D.T.M Gunawardhana, J.M.C.K. Jayawardane ,S.V.Dias , S.A.M.S Disanayaka (2013), A Cost Effective Laboratory Scale Seeding Culture for BOD Testing in Wastewater Analysis, 69th Annual Scientific Sessions 2013, Sri Lanka Association of Advancement Science
R.M.G.N. Rajapaksha, U. Edirisinghe, J.M.C.K. Jayawardana, S.C. Jayamanne (2016). Spatial and Temporal Variation of Physico-chemical Parameters of Water in Badulu-oya Upper Catchment Area. Proceedings of the 6th Research Symposium of Uva Wellassa University, January 28-29, 2016. p130
R M G N Rajapaksha, U Edirisinghe, J M C K Jayawardana and S C Jayamanne (2016). Impacts of habitat quality variation on ichthyofaunal diversity in upper catchment area of Badulu-oya, Sri Lanka. Second global summit on Aquaculture & Fisheries July 11-13, 2016 Kuala Lumpur, Malaysia.
Rajapaksha RMGN, Edirisinghe U., Jayawardana JMCK and Jayamannna S.C. (2016) Survey on agrochemical usage and surface water contamination in upper catchment area of Badulu Oya. Proceedings of the Wayamba University International Conference, sri Lanka, 1 9-20 August 2016
Rajapaksha RMGN, Edirisinghe U., Jayawardana JMCK and Jayamannna S.C. (2016) Assessment of spatial variation of ichthyofaunal diversity in Upper catchment area of Badullu-oya, Badulla district, Sri Lanka. The 3rd International Conference on Fisheries and Aquaculture (ICFA 2016), 24 – 25 August, 2016 Negombo, Sri Lanka. The International Institute of Knowledge Management (TIIKM)
Rajapaksha RMGN, Edirisinghe U., Jayawardana JMCK and Jayamannna S.C. (2016) Spatial and temporal variation of heavy metal contamination in upper catchment area of Badulu-Oya. South Asian Symposium on Sustainable Environment Management 2016 University of Peradeniya 17-18 March 2016
Rajapaksha RMIS, EPN Udayakumara and JMCK Jayawardana (2016). Nitrogen and Phosphorus dynamics and water purification ability of vegetation and soil in Uma Oya catchment. Proceeding of the International Symposium on Agriculture and Environment 2016 ISAE 2016. pp 118-120
WMNS Wijesinghe, JMCK Jayawardana and EPN Udayakumara (2016). Effect of soil erosion on water quality of streams in Badulu Oya watershed in Sri Lanka. Proceeding of the International Symposium on Agriculture and Environment 2016 ISAE 2016. pp133-136.
RNN Weerasinghe, JMCK Jayawardana and EPN Udayakumara (2016). Quontitative assessment of soil erosion and its association with river health in Uma Oya watershed in Sri Lanka. Proceeding of the International Symposium on Agriculture and Environment 2016 ISAE 2016. pp137-140.
RNN Weerasinghe, EPN Udayakumara and JMCK Jayawardana (2016). Human interventions towards soil erosion in Uma Oya watershed Sri Lanka. Proceedings of the Wayamba University International Conference, 19-20 August 2016
Hirimuthugoda, N.Y., Jayawardena, J.M.C.K., Walpita C.N., Atauda,A.S.B., Chintake, P.A.C.T. and Edirisinghe U (2011). Fisheries Biotechnology of Sri Lanka; past, present and the future. (Country paper.) Proceedings of 16th International Conference on Biotechnology in Animal Reproduction, held in Kandy Sri Lanka on 4th and 5th of August 2011.pp 99- 104.
Madurangi, T.K.D., Jayawardana, J.M.C.K., Azmy, S.A.M. and Weerasekara, K.A.W.S. (2013) Investigation of alien marine phytoplankton in the ballast water of ships visiting Colombo harbour. Fourth International Symposium “Harnessing knowledge through research to address emerging global issues, 11th-12th January 2013, Sabaragamuwa University of Sri Lanka.
Wickramasinghe, Y.H.S.D., Jayawardana, J.M.C.K., Azmy, S.A.M. and Weerasekara, K.A.W.S. (2013) A survey of zooplanktons in ballast water of ships visiting Colombo harbour and the surrounding area. Fourth International Symposium “Harnessing knowledge through research to address emerging global issues, 11th-12th January 2013, Sabaragamuwa University of Sri Lanka.
R.T.Nilusha , J.M.C.K. Jayawardane , S.A.M. Azmy and K.A.W.S. Weerasekara (2012). Preliminary study on variations of water quality in selected water bodies in the Anuradhapura District in Ileperuma, O.A., Priyantha, N., Navaratne, A., Yatigammana, S.K. & Weragoda, S.K. (editors): Symposium Proceedings, International Symposium on Water Quality and Human Health: Challenges Ahead, 22-23 March,2012, PGIS, Peradeniya, Sri Lanka
Chandramali Jayawardana, Ramani Perera and Bilesha Perera (2012). Environment and physically active behavior among elders in Sri Lanka. 2nd International congress on Gerontology and Geriatric Medicine New Delhi,India 24-29 February 2012.
Torabi, R, Perera B, Kay N, & Jayawardana C. K. (2009). Associations between suicidal behavior and alcohol and other drug use among undergraduates. XII International congress of International Federation of Psychiatric Epidemiology, April 16-19, 2009, Vienna, Austria.
Perera, B., Jayawardana, CK & Perera. R. (2009). Prevalence and correlates of smoking amongundergraduates in Sri Lanka, 14th WCTOH Conference, 8-13 March, 2009, Mumbai, India.
Perera, B, Torabi, M. R., & Jayawardana, C. K. (2008). Epidemiological aspects of suicidal risks among undergraduates in Sri Lanka, The 2008 World Psychiatric Association Public Health Section Conference, May 11-14, 2008, University of Saskatchewan, Saskatoon, Canada.
S.S.R.M.D.H.R Wijesekara, A. C. Shamendra, J.M.C.K Jayawardana and N. Premathileka (2009) The leachate quality analysis for compost producing solid waste management plant. First National symposium on Natural Resources Management NRM 2009 ON “ Sustainable utilisation of Natural Resources for National Development” 29th-30th August 2009, Sabaragamuwa University of Sri Lanka.
V.D.C.N Vithana, C.D.A.M.P.A Dissanayaka, C. Jayawardana, B. Perera, U.Edirisinghe (2008). Different methodologies used for fishery management in perrenial reservoirs in North Western Province of Sri Lanka. Second International Symposium “ Modelling the issues and challenges towards sustainalble development” 8-12 th July 2008. Sabaragamuwa University of Sri Lanka.
J.M.C.K Jayawardana (2005). Effect of riparian vegetation changes on macroinvertebrate communities in Central Victorian streams. Proceedings of 44rd Annual conference, Australian Society of Limnology, Hobart, Tasmania. pp.36
J.M.C.K Jayawardana (2005). Effect of riparian vegetation changes on macroinvertebrate communities in central Victorian streams. Proceedings of the University of Ballarat annual Research conference. Graduate Centre, University of Ballarat, Australia. Pp.63
Chandramali Jayawardana (2004). Habitat value of willow (Salix spp.) and consequences of removal for macroinvertebrate communities. Proceedings of 43rd Annual conference, Australian Society of Limnology, Adelaide, Australia. pp. 49.
J.M.C.K Jayawardana and Michael Wilson (2003).Invertebrates of willow and tea tree root mats in rivers of contrasting health. (Abstract) Proceedings of the University of Ballarat annual Research conference. Graduate Centre, University of Ballarat. Australia pp. 39
Michael Wilson, Minal Khan, Heath Cameron, Paul Jaskerniak, Chandramali Jayawardana (2003). Willow root mats: Exotic habitat for native fish. (Abstract) Proceedings of annual conference of Australian Society for Fish Biology, New Zealand.
J.M.C.K Jayawardana (2001). A case study on physical and biological factors in relation to mosquito emergence in abandoned gem pits in Elahera, Sri Lanka." at the 13th Annual Congress, 2001 Postgraduate Institute of Agriculture, University of Peradeniya, Sri Lanka.
J.M.C.K Jayawardana (2000). "Morphology, Biology and Predatory efficiency of Poecilia reticulata for mosquito larvae" at the 12th Annual Congress,2000 Postgraduate Institute of Agriculture, University of Peradeniya, Sri Lanka.
J.M.C.K Jayawardana (1996). Osmoregulation of some fishes from the Bolgoda estuary." at the Institute of Biology, Sri Lanka Annual Sessions in 1996.
C. Rubasinghe, D.N.M. Dhanayake J.M.C.K.Jayawardena, S. Pilapitiya (2010) An evaluation of breeding conditions of flies and optimum food waste rations for effective composting in municipal solid waste composting site in Southern Sri Lanka. Third International Symposium “New Horizons in Humanities & Sciences towards Sustainable Development” InSym-SUSL 2010 , 26th,27th and 28th August 2010, Sabaragamuwa University of Sri Lanka.