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CONTACT DETAILS |
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Department of Plant Sciences
University of Colombo
P.O.Box 1490, Colombo 03
Sri Lanka
Phone : +94(0)11 2585038
Fax : +94(0)11 2585038
Email: office@pts.cmb.ac.lk |
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Dr. Sudheera M. W. Ranwala - Senior Lecturer
B.Sc. ( Colombo ), Ph.D. ( Aberdeen ) |
| Address: Department of Plant Sciences, Faculty of Science, University of Colombo , P.O.Box 1490 , Colombo 03, Sri Lanka
E-Mail: ranwala@pts.cmb.ac.lk
Phone:+94 (0)11 2585038 (Ext 80- 45)(office) Fax: +94 (0)11 2585038 |
| 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)
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| 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
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TEACHING RESPONSIBILITIES |
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| 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
RESERCH GRANTS
- 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
RESERCH PUBLICATIONS
Full papers
- 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 of Lantana 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, 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. 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
Abstracts
- 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 hysterophorus residues 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 of Parthenium 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 of Lantana camara L. (Gandapana) on seed germination and cotyledon expansion of Ludwgia 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 perpusila Torrey , 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
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PROFESSIONAL SERVICES |
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President - Institute of Biology ( Sri Lanka)- 2008/09
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Secretary - Sri Lanka Association for the Advancement of Science ( Section D)- 2008
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Vice President - Institute of Biology ( Sri Lanka)- 2005/06, 2006/07, 2007/08
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Joint Secretary - Institute of Biology ( Sri Lanka)- 2003/04 and 2004/05
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Committee member - Sri Lanka Association for the Advancement of Science (Section D)- 2007, 2009
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Member- National Steering Committee for Mangroves For Future Initiatives (MFF), Ministry of Environment and Natural Resources, Sri Lanka (from 2007)
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Member - National Forestry Research Committee, Forest Department, Sri Lanka (from 2008)
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Member - Plant Identification Committee for Exportation of Aquatic Plants, Forest Department, Sri Lanka (from 2006)
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Member - Manuscript Review Committee, Book Development Project, National Library and Documentation Services Board (from 2004)
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Member- Editorial Board, Manual of Medicinal Plants- WHO Project, Institute of Indigenous medicine, University of Colombo (2002-2003)
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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)
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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
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Joint Organizer of a series of seminars conducted for school children on developing interests towards Biodiversity and Environment Conservation, organized by the Sri Lanka Association for the Advancement of Science ( Section D)in 2007
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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
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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
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