Dr. Sudheera M. W. Ranwala

Dr. Sudheera M. W. Ranwala

Senior Lecturer

Head of the Department
Department of Plant Sciences,
University of Colombo,
Colombo 03,
Sri Lanka.
Work Phone: +9411 258 5038 Ext 8045

FIELD OF SPECIALIZATION
Ecology
CAREER RECORD
  • Demonstrator (Temporary) :- (from 01 October 1992 to 31 Oct 1992)
  • Assistant Lecturer (Temporary):-(from 01 Nov 1992 to 25 July 1993)
  • Lecturer :-(from 26 July 1993 to 22 July 2001)
  • Senior Lecturer :- (from 23 July 2001 to date)
  • Honorary Research Fellow, Institute of Biological & Environmental Sciences, University of Aberdeen , Scotland, UK (from 01 October 2009 to date)
HONORS & COMPETITIVE ACADEMIC AWARDS
  • Commonwealth Fellowship (2009), Commonwealth Commission, UK
  • Commonwealth Full Scholarship (1997), Commonwealth Commission, UK
  • Professor B. L. T De Silva Memorial award for best performance in Special Degree in Botany (1992)
  • Swarna Senadhirajah Memorial award for best performance in Genetics and Plant Breeding (1992)
  • Botany Department Staff prize (1990) for best performance in subjects offered by the Department of Botany at the First and Second Year Examinations in Science
  • Mahapola Higher Education Scholarship (merit) for performance in G. C. E. (A/L) 1984
TEACHING RESPONSIBILITIES
  • Undergraduate programmes

    • University of Colombo
      • Variety of Plant Life, Flora of Sri Lanka, Plant Ecology, Plant Diversity Management, Forest Science
    • Visiting lecturer:
      • University of Kelaniya -2009
      • University of Sri Jayawardanapura- 2009,2010, 2011
  • Postgraduate programmes
    • University of Colombo
      • M. Sc/PG Diploma in Environmental Science
      • Masters in Regional Development and Planning
      • M. Sc/ PG Diploma in Environmental Management

     

    • University of Moratuwa
      • M. Sc in Landscape Design
  • Diploma and Certificate programmes

    -Diploma in Biodiversity Management , jointly conducted by Department of Plant Sciences and Department of Zoology, University of Colombo (including coordination since 2007) – National Tourist Guide Lecturer Training Programme & Chauffeur Tourist Guide Lecturer Training Programme, Tourist Board, Sri Lanka since 2006)

RESEARCH EXPERIENCE

RESERCH INTERESTS

  • Ecology, Biology and Management of Weeds/ Invasive alien plants
  • Spatial diversity & distribution of flora in natural and urban ecosystems and their conservation aspects and impacts of climate change on them.
  • Flora in natural and urban ecosystems of Sri Lanka, current status, effect of anthropogenic activities and climate change, conservation aspects
  • Ecology, biology, distribution, and management of environmental weeds/invasive alien plants
  • Plants and climate change

RESERCH GRANTS

  • Diversity of some marshlands in the Colombo and Greater Colombo Area (1994), funded by National Research and Scientific Agency (NARESA, presently National Science Foundation), Sri Lanka (RG/ 94/ B/ 01)- completed.
  • Above ground growth dynamics of Bilberry Vaccinium myrtillus L. (1998), funded by Commonwealth Scholarship Commission, UK –completed
  • Soil improvement through traditional Agroforestry practices of Sri Lanka (2000), Co investigator/grantee of Aberdeen University Expedition to Sri Lanka funded by University of Aberdeen Principal’s Small Grants Fund, The Watt Grant for Ecological research, The Carnegie trust for the Universities of Scotland, The Institute of Biology (UK) The Gilchrist Educational Trust, The German National Merit Foundation and Percy Sladen Memorial Fund (UK) – completed
  • Phytotoxic studies of Lantana camara L (Gandapaana) on paddy field weeds (2005), funded by National Science Foundation, Sri Lanka (RG/2005/AG/06)- completed
  • Effect of Lantana camara L (Gandapaana) on microbial populations and nutrient content of paddy soil (2008), funded by National Science Foundation, Sri Lanka (RG/2007/AG/05).- completed
  • Plant responses to changing atmospheric carbon dioxide levels; anatomical and physiological adaptations of stomata (RG/2010/BS/01)- in collaboration with Dept. of Crop Science, University of Peradeniya- ongoing
  • Forecasting of the growth and yield performance Sri Lankan grown Sesame/Thala (Sesamum indicum L.) and its wild relatives to water deficit conditions: A Mathematical Modelling Approach (2012), funded by National Science Foundation, Sri Lanka (RG/2011/AG/06).- on going
  • Development of a ecological model for assessment of risks of invasion during deliberate plant introductions to Sri Lanka (2013), funded by University of Colombo Research Grant Scheme- on going

RESERCH PUBLICATIONS

Full papers

  • Wickramathilake, B. A. K., Weerasinghe, T. K. and Ranwala, S.M. W. (2013), Impacts of woody invader Dillenia suffruticosa (Griff.) Martelli. on physico-chemical properties of soil and, below and above ground flora, Journal of Tropical Forestry and Environment 3(2) 66-75,
  • Medawatte W.W.M.B. A., Amarasinghe J,. Iqbal M C.M., Ranwala S. M.W. (2014). Restoration of a degraded dry forest using nurse trees at Dambulla, Sri Lanka, Conservation Evidence 11, 16-19
  • Ranwala S. M. W., Attigala L. R. De Silva S (2014), Herbicidal potential of Lantana camara L. on Ludwigia spp in paddy soil, Tropical Agriculture Research and Extension 17 (I) 10-18
  • Iqbal M.C.M., Wijesundera D.S.A. Ranwala S. M.W. (2014) Climate change, invasive alien flora and concerns for their management in Sri Lanka, in Ceylon Journal of Biological Sciences, University of Peradeniya, Sri Lanka, 43 (2), 1-15
  • Zulaiha M. Liyakath and Sudheera. M. W. Ranwala (2013).Why Green spaces in Colombo City limits need to be tended to? . International Urban Design Conference on “Cities, People and Places” October 14th-17th, Colombo, Sri Lanka, 402
  • Ranwala S. M. W. (2014). Stakeholder participation in management and control of invasive alien flora in Sri Lanka Proceedings of the National Symposium of Invasive Alien Species, IAS 2014, organized by University of Kelaniya in collaboration with Biodiversity Secretariat of the Ministry of Environment, 27th November 2014, Sri Lanka Foundation, Colombo, Pg 8-21
  • Pramodi N. Hewavitharana, Sudheera M. W. Ranwala, (2015) Evaluation of Tree Health and Safely of Urban trees in Colombo, International Urban Conference on “Cities, People and Places; Towards a new urbanity ” October 26th-27th, Colombo, Sri Lanka, organized by Department of Architecture, University of Moratuwa, Pg 213-229
  • Sudheera M. W. Ranwala and Robert E. L. Naylor (2004), Production, survival and germination of Bilberry (Vaccinium myrtillus L.) seeds. Botanical Journal of Scotland, (now published asPlant Ecology and Diversity) 56 (1) 55-63
  • Ranwala S. M. W., Kohomange, C. D., Dissanayake J. K., Jayasumana, S. M., (2005), Allelopathic effect of residues, leachates and living plants of Parthenium hysterophorus L. on germination and growth of Chilli (Capsicum annuum L.),Proceedings of the Second International Conference on Parthenium Management, 5-7 December 2005, Bangalore, India
  • De Silva T. M. S. S., Ranwala S. M. W., (2007), A study on allelopathic effect ofLantana camara L. (Gandapaana) on germination and seedling growth of Ischaemum rugosum Salisb., Eleusine coracana (L) Gaertn. and Vernonia cinerea (L.) Less.,Proceedings of the 21st Asian-Pacific Weed Science Society (APWSS) Conference,Colombo, 2-6 October, 2007
  • Ranwala S. M. W. and Abeynayake, K., Diversity of plants and implications of human interferences on urban and peri-urban freshwater marshlands in Colombo,Proceedings of the International Conference on Humid Tropical Ecosystems: Changes, Challenges and Opportunities,4-9 December 2005, Kandy, Sri Lanka (submitted and accepted by the National Science Foundation)
  • Ilyas Siddique, Caroline Gutjahr, Gamini Seneviratne, Broder Breckling, Sudheera M. W. Ranwala, Ian J. Alexander, (2007), Changes in soil chemistry associated with the establishment of forest gardens on eroded, acidified grassland soils of Sri Lanka,Biology and Fertility of Soils, Vol 44 (1 ), 163-170 Springer Berlin /Heidelberg
  • Wickramasinghe L. S. and Ranwala S. M. W. (2008), Toxicity of Lantana camara L. residues on selected rice varieties (BW 361, BW267/3, BW364). Proceedings of the third National symposium on Invasive Alien Species, 11 November, Colomboorganized by Sri Lanka Association for the Advancement of Science (Section D), National Science Foundation, Biodiversity Secretariat, Ministry of Environment and Natural Resources, Sri Lanka.
  • Ranwala S. M. W. Hafiz R (2008), Importance of a scientific criteria for prioritization of Invasive alien plants in Sri Lanka. Proceedings of the third National symposium on Invasive Alien Species, 11 th November, Colombo organized by Sri Lanka Association for the Advancement of Science (Section D), National Science Foundation, Biodiversity Secretariat, Ministry of Environment and Natural Resources, Sri Lanka.
  • Ranwala S. M. W. Wanigaratne D. (2008), A database for Invasive alien plants in Sri Lank a . Proceedings of the third National symposium on Invasive Alien Species,1 1th November, Colombo organized by Sri Lanka Association for the Advancement of Science (Section D), National Science Foundation, Biodiversity Secretariat, Ministry of Environment and Natural Resources, Sri Lanka.
  • Justin M. J. Travis, Hannah S. Smith, Sudheera M. W. Ranwala (2010) Towards a mechanistic understanding of dispersal evolution in plants: conservation implications, Diversity and Distributions, 16(4) 690-702
  • Jayarathne Bhagya and Ranwala Sudheera M W (2010), Research on Invasive Alien Plants in Sri Lanka: An analysis of past work, In Invasive Alien Species- Strengthening capacity to control Introduction and Spread in Sri Lanka (Eds. B. Marambe , P. Silva, S. Wijesundera, N. Attapattu), 179-184, Biodiversity Secretariat, Ministry of Environment and Natural Resources, Sri Lanka, ISBN 955-0033-17-1
  • Ranwala S. M. W., Dilani N. D. R. (2010). Can handicraft industry be an Agro based industry in Sri Lanka? Proceedings of the International Seminar and Workshop on sustainable utilisation of tropical plant biomass, 14-15 Dec 2010, Trivandrum, Kerala state, India
  • Ranwala S., Marambe B., Wijesundara S., Silva P., Weerakoon D., Atapattu N., Gunawardena J., Manawadu L. and Gamage G. (2011): Post-entry risk assesment of invasive alien flora in Sri Lanka – Present status, gap analysis and the most troublesome alien invaders. In: Proceedings of the 23rd Asian Pacific Weed Science Society Conference (Eds: R. McFadyen, N. Chandrasena, S. Adkins, A. Hashem, S. Walker, Deirdre Lemerle, L. Watson, and S. Lloyd), pp 134-141. Sebel Ciarns, Australia (26-29 September).
  • Caldera, H.I.U., De Costa, W.A.J.M., Wijeratne M.A. and Ranwala S.M.W. (2011), Response of stomatal characters of Sri Lankan tea cultivars to environmental change, Proceedings of the International Conference on the impact of climate change on Agriculture, 20-21 Dec 2011, University of Ruhuna, Sri Lanka
  • Ranwala S. M. W. (2011). Can invaders also be considered as bioindicators of environment health?. Mini Symposium on Bio-indicators of Environment Health and Biodiversity Indices, organized by the Environment Committee of Sri Lanka Association for the advancement of Science in collaboration with the Biodiversity Secretariat of the Ministry of Environment, 21st December 2011, The Open University, Sri Lanka
  • B. Marambe, P. Silva, S. Ranwala, J. Gunawardena, D. Weerakoon, S. Wijesundara, L. Manawadu, N. Atapattu, and M. Kurukulasuriya (2011), Invasive Alien Fauna in Sri Lanka; National Lists, Impacts and Regulatory Framework, In: Island invasives: eradication and management. (Eds. Veitch, C. R.; Clout, M. N. and Towns, D. R.), 445-450,IUCN, Gland, Switzerland
  • Wickramathilake, B. A. K., Weerasinghe, T. K. and Ranwala, S.M. W. (2013 submitted), Impacts of woody invader Dillenia suffruticosa (Griff.) Martelli. on physico-chemical properties of soil and, below and above ground flora, Journal of Tropical Forestry and Environment, University of Sri Jayawardenapura, Sri Lanka

Abstracts

  • Gunaratne N. N., Ranwala S. M. W. (2013), Pollen characteristics of ornamental and naturally growing Lantana (Lantana camara L.) varieties. Proceedings of the 33rd Annual Sessions of the Institute of Biology, Sri Lanka
  • Mihindukulasuriya R. H., Ranwala S. M. W. (2013). A preliminary investigation on organic applications to promote paddy growth and suppress weeds. Proceedings of the Annual Academic Sessions of University of Colombo, Sri Lanka. Pg 175
  • Wickramasinghe, D. D., Ranwala, S. M. W., Mahanama, R, Kaumal, M.N., Kathriarachchi, H, Hettiarachchi, C. (2013). University, Community and Corporate partnership: A case study of Service Learning Projects at University of Colombo (2013), Proceedings of the 69nd Annual Sessions of Sri Lanka association for the Advancement of Science, Pg 184
  • Wickramasinghe L.S., Ranwala S. M. W., Subasinghe U.S. (2014), Spatial and Temporal Change of the greenery of Colombo City, Eighteenth International Symposium of Forestry and Environment, University of Sri Jayawardenapura, Sri Lanka, Pg 84
  • Kumara T. M., Ranwala S. M. W, Jinadasa G.A, Rathnayaka U. A. G., Ponnamperuma Arachchi J. (2014). Development of an Organic Application for Paddy using Leaves of some selected plant species and cow dung.
    Proceedings of the 34th Annual Sessions of the Institute of Biology, Sri Lanka, Pg 25
  • Wijeratne V.P.I. S, Ranwala S M. W., Gunatilake J. (2014). Predicting the spread of “Myroxylon balsamum (l.) Harms” in Udawattakele forest reserve, Proceedings of Annual Sessions of the Institute of Postgraduate Institute, University of Peradeniya, Sri Lanka, Pg 29
  • Wijeratna V.P. I.S., Dilrukshi I.A.D.N., Ranwala S.M.W. (2014). Abundance
    of Invasive Alien Plants beside the nature trail of the Udawattakele Forest Reserve. Proceedings of the 34th Annual Sessions of the Institute of Biology, Sri Lanka, Pg 24
  • Medawatte W.W.M.A.B., Amarasinghe J., Iqbal M.C.M., Ranwala S. M. W.
    (2014). Effect of clearance of early pioneer speces to restore dry forests of Sri Lanka. Proceedings of the 34th Annual Sessions of the Institute of Biology, Sri Lanka, Pg 23
  • Wijewantha N. V. N. and Ranwala S. M. W. (2014). Trends in Forestry research in Sri Lanka ; past to present, Nineteenth International Symposium of Forestry and Environment, University of Sri Jayawardenapura, Sri Lanka. Pg 54
  • Peiris H.O.W. Perera S.N.N. and Ranwala S.M.W. (2014) Fuzzy based model on Analysis of Invasiveness to Dispersal related Biological Traits of Plants Annual Research Symposium of University of Colombo, 21 Nov 2014, University of Colombo. Pg 237
  • Peiris H.O.W. Perera S.N.N. and Ranwala S.M.W. (2014). Development of a fuzzy based model to evaluate the risk of invasive plant species due to dispersal traits. Annual Academic Sessions of the Open University of Sri Lanka, 27-28 November 2014, Pg 332- 336
  • Dissanayake, J.K., Ranwala, S.M.W., Perera, S.,S.N., Nijumudeen S. M., Weerakoon W. M.W. (2015). Growth and yield performance of Sri Lankan grown Sesame/Thala (Sesamum indicum L.) and its wild relatives to water
    deficit conditions, Proceedings of the First International Symposium on Environment Management and Planning, Central Environmental Authority, Sri Lanka, Pg 48
  • N. V. Nimna Wijewantha and Sudheera M. W. Ranwala (2015). Avoid falling from pit to precipice : Need for an attentive selection of species for greening forest lands. World ecological restoration conference SER 2015 , 23-27 August 2015, Manchester UK
  • W. W. M. A. B. Medawatte, M. C. M. Iqbal, S. M. W. Ranwala. Exotic Khaya senegalensis (Desr.) A. Juss. as Nurse-trees for Dry Forest Restoration in Sri Lanka. World ecological restoration conference. SER 2015, 23-27 August 2015, Manchester UK
  • I.A.J.K. Dissanayake, S.M.W. Ranwala, S.S.N. Perera (2015), Morphological variation of Sesame/Thala (Sesamum indicum L.) grown in Sri Lanka, Proceedings of the Annual Research Symposium of University of Colombo, 26 October 2015, Colombo. Pg 128
  • K. M. S. Deshaprema, Sudheera M. W. Ranwala, M. C. M. Iqbal, P. S. Saputhanthri (2015), Floristic diversity and plant associations in Ussangoda National Park, Proceedings of the Annual Research Symposium of
    University of Colombo, 26 October 2015, Colombo, Pg 126
  • K. M. S. Deshaprema, Sudheera M. W. Ranwala, M. C. M. Iqbal, P. S. Saputhanthri (2015), Regeneration potential and species interactions of selected woody species at Ussangoda Serpentine plains. Proceedings of the Annual Research Symposium of University of Colombo, 26 October 2015, Colombo, Pg 129.
  • Heavy metal hyperaccumulating plants in the Ussangoda serpentinite, R. M. Samarakkody, P. S. Saputhanthri, M. C. M. Iqbal and S. W. Ranwala, Proceedings of the Annual Research Symposium of University of Colombo, 26 October 2015, Colombo, Pg 130
  • D. M. S. Suranjan Karunaratne, Sudheera M. W. Ranwala (2015), Impact of vehicular traffic on animal motality in Horton Plains and Yala National parks of Sri Lanka, Proceedings of the Annual Research Symposium of Faculty of Graduate Studies, 25 October 2015, University of Colombo, Pgs 88-93
  • Abeynayake K., Wadisinha Ranwala, (1995), The biodiversity of two important marshlands in suburban areas of Colombo, Proceedings of the 51 st Annual Sessions of Sri Lanka Association for the Advancement of Science
  • Sudheera M. W. Ranwala and Robert E. L. Naylor (2000). Effect of sheep grazing on ramet performance of Bilberry (Vaccinium myrtillus L.), Sixth International Workshop on Clonal Plant Research, 20-25 August 2000, Obergurgl, Austria
  • Sudheera M. W. Ranwala and Robert E. L. Naylor. (2000). Seed germination and seedling establishment of Bilberry (Vaccinium myrtillus L. ). Seventh International symposium on Vaccinium Culture, December 2000, Chillan, Chile
  • Kohomange C. D., Ranwala S. M. W., (2003), Competitive effect of Parthenium hysterophorus L. on Capsicum annuum L. (Chilli) in the presence of Cyperus rotundus L. and Vernonia cinerea (L.) Less., Proceedings of the 59 th Annual Sessions of Sri Lanka Association for the Advancement of Science
  • Dissanayake A. J. K., Ranwala S. M. W., (2004), Effect of Parthenium hysterophorusresidues on Chilli (Capsicum annuum L.), Proceedings of the 60 th Annual Sessions of Sri Lanka Association for the Advancement of Science
  • Jayasumana S. M., Ranwala S. M. W., (2004), Allelopathic effect of crude extract ofParthenium hysterophorus L. on seed germination of Capsicum annuum L. (Chilli),Proceedings of the 60 th Annual Session of Sri Lanka Association for the Advancement of Science
  • Madushani K. A. D. I., Ranwala S. M. W., (2004), Phytotoxicity of Lantana camara L. on selected rice field weeds, Proceedings of the 60 th Annual session of Sri Lanka Association for the Advancement of Science
  • Chaturani H. G. K., Ranwala S. M. W., (2005), Phytotoxicity of Lantana camara L. (Gandapana) residues on Commeline diffusa L. (Girapala), Proceedings of the 25 th Annual Sessions of the Institute of Biology, Sri Lanka
  • Rubasinghe U, Ranwala S. M. W., (2005), Effect of Croton lacciferus L. (Keppetiya) residues on germination and growth of selected paddy and paddy field weeds,Proceedings of the 25 th Annual Sessions of the Institute of Biology, Sri Lanka
  • Hafiz R., Ranwala S. M. W., Somaratne S., (2006), Development of a criteria for prioritizing invasive plants of Sri Lanka, Proceedings of the 26 th Annual Sessions of the Institute of Biology, Sri Lanka
  • Meepage H., Ranwala S. M. W., Somaratne S., (2006), Decomposition and nutrient release pattern of dried leaves of Croton lacciferus L. (Keppettiya), Proceedings of the 26 th Annual Sessions of the Institute of Biology, Sri Lanka
  • De Silva T. M. S. S., Ranwala S. M. W., (2006), A study on allelopathic effect ofLantana camara L. (Gandapana) on seed germination and cotyledon expansion ofLudwgia decurrens Walt. and L. hissopifolia G. Don Excell (Wel Karabu),Proceedings of the 62 nd Annual Sessions of Sri Lanka association for the Advancement of Science
  • De Silva T. M. S. S, Ranwala S. M. W (2007), Toxicity of Lantana camara L. (Gandapana) on growth of paddy field weeds; Ludwigia decurrens Walt.(Well karabu),Ischaemum rugosum Salisb.(Kudukedu) and Limnocharis flava (L.) Buchenau (Diya Gova), Proceedings of the 27 th Annual Sessions of the Institute of Biology, Sri Lanka
  • Wickramasinghe L. S., Ranwala S. M. W., (2008), Effect of Keppetiya (Croton lacciferus L.) on vegetative and reproductive growth of selected rice varieties (BW 361, BW267/3, BW364), Proceedings of the 28 th Annual Sessions of the Institute of Biology, Sri Lanka
  • Chamesh P. A., Ranwala S. M. W., (2008), A study on competition among floating aquatic weeds Salvinia molesta D. S. Mitchell., Pistia stratiotes L., Lemna perpusilaTorrey , and Azolla pinnata R. Br. Grown under different nutrient levels. Academic Sessions of University of Colombo, 24 th October 2008, University of Colomb,
  • Amarathunga H B J C, and Ranwala S. M. W., (2008), Awareness on biodiversity conservation among school children in Sri Lanka. Proceedings of the64 th Annual sessions of the Sri Lanka Association for the Advancement of Science
  • Wanigarathna D. A. and Ranwala S. M. W., (2008),Development of a database for Invasive Alien Plants in Sri Lanka, Proceedings of the64 th Annual sessions of the Sri Lanka Association for the Advancement of Science
  • Jayarathne Bhagya and Ranwala Sudheera (2009), Research on Invasive Alien Plants in Sri Lanka: An analysis of past work, Abstract Book, Fourth National symposium on Invasive Alien Species, 21 st-2 nd May, Negombo organized by Biodiversity Secretariat, Ministry of Environment and Natural Resources, Sri Lanka, Institute of Biology (Sri Lanka) and Agricultural Extension Unit of University of Peradeniya
  • Athukorala I., Ranwala Sudheera M W (2009), National legislation on biodiversity conservation and awareness among stakeholders, Proceedings of the 29 th Annual Sessions of the Institute of Biology, Sri Lanka
  • Dilrukshi K.A., Ranwala Sudheera M W (2009), Assessment of allelopathic potential of naturally growing Lantana camara L. varieties in Sri Lanka, Proceedings of the 29 th Annual Sessions of the Institute of Biology, Sri Lanka
  • Dilrukshi K.A., Ranwala Sudheera M W (2009), Characterization of naturally growing Lantana camara L. varieties i n Sri Lanka, Proceedings of the 29 th Annual Sessions of the Institute of Biology, Sri Lanka
  • Marambe B., Gunawardena J., Silva, P., Wijesundera S., Ranwala S., Weerakoon D., Manawadu L. and Attapattu N. (2010). An analysis of the legal and policy environment in Sri Lanka to control invasive alien species. Proceedings of the International conference on “Island invasives: Eradication and Management”, 8-12 February 2010, organized by University of Auckland, Center for Biodiversity and Biosecurity, New Zealand and the Invasive Species Specialist Group (ISSG), IUCN, Pg 45
  • Silva P., Ranwala S., Weerakoon D., Marambe B., Wijesundera S., Manawadu L., Attapattu N., Gunawardena J. and Kurukulasuriya M. (2010). Invasive alien fauna in Sri Lanka. Proceedings of the International conference on “Island invasives: Eradication and Management, 8-12 February 2010, organized by University of Auckland, Center for Biodiversity and Biosecurity, New Zealand and the Invasive Species Specialist Group (ISSG), IUCN, Pg 64
  • Caldera H. I. U., De Costa W. A. J. M., Woodward I, Lake J. A., Ranwala
  • S. M. W. (2012). Stomatal response of Camellia sinensis (L.) O. Kuntze to elevated carbon dioxide. Abstract Book, Stomata 2012; 29th New Phytologist Symposium, 2-4 July 2012, Manchester Conference Center, UK. Pg 38
  • Ranwala S. Figs (Ficus spp.) dispel the splendor of Colombo Streets- a case
  • Study (2012). Conservation Sri Lanka Conference organized by Ministry of Environment and Institute of Biology, Sri Lanka Pg 11
  • SiripalaK. R. R., Ranwala S. M. W., Mahawatta P. (2012). Elemental and radionuclide analysis of commercially available edible seaweeds in Sri Lanka, Proceedings of Annual Academic Sessions of National Aquatic Research Agency (NARA), Sri Lanka
  • Ranwala S. M. W. (2013), A risk assessment methodology for prioritizing forest biosphere reserves for control of forest plant invaders in Sri Lanka, Proceedings of International Union of Forest Research Organizations (IUFRO) Risk Analysis Working party meeting- Risk Analysis of Forest Invasive Species, Punjab University, Chandigarh India, 27 February- 1 March 2013
  • Other publications
  • Books:
  • Wild Plants of Economical and Medicinal Importance (in Sinhala), March for Conservation, 1998, ISBN 955-9092-04-9
  • Invasive plants of Sri Lanka (in Sinhala) – National Science Foundation, Sri Lanka, 2011, ISBN 978-955-590-090-4

    Chapters in Books:

    • Wetland Management: sustainable wetland, legislation and policy framework in wetland management in Sri Lanka (2009) In Text book for Course AE I 5248, Dept of Agriculture and Plantation Engineering, The Open University of Sri Lanka
    • Risk Assessment for Invasive Alien Species (2010), In Invasive Alien Species- Strengthening capacity to control Introduction and Spread in Sri Lanka (Eds. B. Marambe , P. Silva, S. Wijesundera, N. Attapattu), 15-26, Biodiversity Secretariat, Ministry of Environment and Natural Resources, Sri Lanka , ISBN 955-0033-17-1
    • Ranwala S. M. W. Forest and people, In Forests of Sri Lanka; nature at your service, Dilma Conservation and Sri Lanka Association for the Advancement of Science (in press)

    Professional training:

    • Entrepreneurship Skill development (University of Plymouth, UK, 2011)
    • Intellectual Property Education, Training and Research (WIPO Regional Colloquium-Colombo, 24-26 November 2008 [organized by the World Intellectual Property Organization, Technical Assistance and Capacity Building Bureau for Asia and the Pacific (ASPAC)]
    • International workshop for training in Science Journalism (National Science Foundation, 8-10 September 2008)
    • Training of Trainers on Skills for Science Communication to the public (National Science Foundation, 2005)
    • Designing academic courses for significant learning experiences (Staff Development Center, University of Colombo, 9-11 September, 2005)
    • Training programme on Geographic Information Systems (University of Colombo, 1997)
    • Training workshop on Environmental Impact Assessment Methodology, (Central Environmental Authority, 1994)
    • Regional training Course on Herbarium Techniques and Curation, 28th November – 08th December 1994 at National Botanical Research Institute, Lucknow, India,

PROFESSIONAL SERVICES

  • INSTITUTE OF BIOLOGY (SRI LANKA) – President – 2008/09 Vice President – 2005/06, 2006/07, 2007/08, Joint Secretary – 2003/04 and 2004/05
  • SRI LANKA ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE – COUNCIL MEMBER (2014), SECTION D- (Life Sciences): President 2014, Vice President 2013, Secretary 2008. Committee member- 2007, 2009, 2011, 2012, COMMITTEE FOR POPULARIZATION OF SCIENCE- Member- 2012, COMMITTEE FOR SCIENCE EDUCATION Member- 2010
  • NATIONAL ENVIRONMENT COUNCIL OF SRI LANKA –Central Environment Authority- Member- (from 2014)
  • CHIEF EXAMINER IN EVALUATIONS, G. C. E ADVANCED LEVEL (BIOLOGY –Department of Examinations, Sri Lanka (2013)
  • NATIONAL INVASIVE SPECIES SPECIALIST GROUP (NISSG- Sri Lanka), –Ministry of Environment and Renewable Energy -Member (from 2014)
  • NATIONAL WORKING COMMITTEE ON BIODIVERSITY AND ENVIRONMENT, –National Science Foundation, Sri Lanka – Member (from 2014)
  • NATIONAL FORESTRY RESEARCH COMMITTEE, –Forest Department, Sri Lanka -Member (from 2008)
  • PLANT IDENTIFICATION COMMITTEE FOR EXPORTATION OF AQUATIC PLANTS –Forest Department, Sri Lanka –Member (2006- 2008)
  • EXPERTS GROUP TO STRENGTHEN CAPACITY TO CONTROL THE INTRODUCTION AND SPREAD OF INVASIVE ALIEN SPECIES IN SRI LANKA, –Ministry of Environment and Natural Resources, Sri Lanka – Member (from 2008)
  • SPECIES EXPERTS COMMITTEE OF MINISTRY OF MAHAWELI DEVELOPMENT AND ENVIRONMENT –– Member(from 2015)

  • JUDGE PANEL OF NATIONAL GREEN AWARDS 2015 –Central Environment Authority- Member (2015)

  • Vice President– Sri Lanka Association for the Advancement of Science (Session D) 2013.
  • Secretary – Sri Lanka Association for the Advancement of Science ( Section D)- 2008
  • Vice President – Institute of Biology ( Sri Lanka)- 2005/06, 2006/07, 2007/08
  • Joint Secretary – Institute of Biology ( Sri Lanka)- 2003/04 and 2004/05
  • Committee member – Sri Lanka Association for the Advancement of Science (Section D)- 2007, 2009
  • Member- National Steering Committee for Mangroves For Future Initiatives (MFF), Ministry of Environment and Natural Resources, Sri Lanka (from 2007)
  • Member – National Forestry Research Committee, Forest Department, Sri Lanka (from 2008)
  • Member – Plant Identification Committee for Exportation of Aquatic Plants, Forest Department, Sri Lanka (from 2006)
  • Member – Manuscript Review Committee, Book Development Project, National Library and Documentation Services Board (from 2004)
  • Member- Editorial Board, Manual of Medicinal Plants- WHO Project, Institute of Indigenous medicine, University of Colombo (2002-2003)
  • Task Force member in experts group to strengthen capacity to control the introduction and spread of invasive alien species in Sri Lanka, Ministry of Environment and Natural Resources, Sri Lanka (2009)
  • Joint Coordinator of the Workshop on Horticulture for small scale plant growers, held at Universities of Colombo and Kelaniya on 08 & 09 May 2005 respectively, organized by the Institute of Biology
  • Joint Organizer of a series of seminars conducted for school children ondeveloping interests towards Biodiversity and Environment Conservation,organized by the Sri Lanka Association for the Advancement of Science ( Section D)in 2007
  • Organizer of the Third National Symposium on Invasive Alien Species –IAS 2008 held on 11 th November 2008, Colombo, conducted by the Sri Lanka Association for theAdvancement of Science (Section D), sponsored by National Science Foundation and the Biodiversity Secretariat, Ministry of Environment and Natural Resources, Sri Lanka
  • Joint organizer of the Workshop on identification, characterization and management of Invasive plants: an awareness programme for young generation conducted by Institute of Biology, Sri Lanka, sponsored by Sri Lanka Nature foundation on 10 March 2009 at K/Girl’s High School, Kandy