sympoisum 2009
« Previous EntriesHow do Sri Lankan shrub frogs Philautus popularis spend their night time: Field observations from Bolgoda wetland complex
Wednesday, March 17th, 2010H.G.S.K. Dayananda and D.D. Wickramasinghe
Sri Lanka is an amphibian hot spot providing home for 109 species. Nevertheless, studies on ecology and biology of amphibians of Sri Lanka are scarce and behaviour of frogs has drawn even less attention. Philautus popularis (Ranidae, Rhacophorinae; Manamendra-Arachchi & Pethiyagoda, 2005) is an endemic shrub frog which occurs in the […]
Distribution and population parameters of selected tree species in Gilimale and Kithulgala Forest Reserve
Wednesday, March 17th, 2010S. S. Ranathunga and B.M.P Singhakumara
Field surveys have not been carried out in Sri Lanka to gather the population data on critically endangered tree species in their habitats. The population data on the critically endangered tree species are important to understand the present status of the population. In this study, the population data of seven […]
Utilization of treated tannery waste water using HRTS (High Rate Transpiration System)
Wednesday, March 17th, 2010S. Krishnamoorthi and G. Kandasamy
The major objective of this paper is given to soil and ground water quality improvement by utilizing the high transpiration pull property of specific plants. It acts as a catalyst to improve the water management and also effluent is getting treated in a eco friendly manner. We utilized the tannery effluent […]
Efficient removal of nitrogen/phosphorus by Bio-Geo Filter ditches consisting of laterite
Wednesday, March 17th, 2010G.S.M Fonseka1, N.P.M Rajaguru2, K.C.J Jayasekara2, B.C Liyanage2 and S.S. Iqbal2
In order to develop low-cost energy saving ways to treat wastewater in combination with resource recycling, a plant bed filter ditch in which terrestrial and aquatic plants are used to remove nitrogen (N) and phosphorus (P) from domestic wastewater specially from the septic tank effluents. […]
A Multi agent system for environmental friendly agriculture
Wednesday, March 17th, 2010R. Rupasinghe, A. Ranatunga, S. Rathnayake, A. Sajagahan and A. Karunananda
Environmental sustainability has become an important topic nowadays due to various adverse effects of natural systems which has caused the mankind to suffer in multi faceted difficulties. Achieving the environmental sustainability is not an individual effort but a collective effort of all the stake holders […]
Baseline Survey on Biodiversity in up country tea estates in Sri Lanka
Wednesday, March 17th, 2010G.G.T. Chandrathilake1
Conventional tea plantation was assessed in terms of biodiversity in up country tea estates in Sri Lanka. A rapid survey was carried out to document the both faunal and floral diversity associated in selected nine (9) tea estate in Nuwara Eliya district an areas that have not been properly surveyed for biodiversity. Based on […]
Efficiency of some local plants as eco-friendly pest control agents in reducing infestation
Wednesday, March 17th, 2010T.V.N.M. Gunarathna and M.M.S.C. Karunaratne
Repellent effects of powdered leaf mixtures of four plant species, Piper nigrum (black pepper), Ocimum gratissimum (maha maduruthala), Cinnamomum verum (cinnamon) and Mentha viridis (mint) were evaluated against the adult rice weevil, Sitophilus oryzae under laboratory conditions (29 ±200 C and 84±2 % relative humidity). The evaluation was made with the […]
Use of anti- fungal properties of clove, cinnamon, nutmeg and beetle leaf extracts to
Wednesday, March 17th, 2010P. Alahakoon, K.C. Madushani, N.H Jayawardana and R. Munasingha
An experiment was conducted to study the fungi associated with the anthracnose disease of Capsicum spp. in different locations and evaluating the biological control method compared to the chemical control method. The pathogenic fungi isolated were Colletotrichum gloeosporiodes, Colletotrichum capsici, and Colletotrichum coccoides. Pathogencity of fungi was […]
Effects of carbofuran on survival and growth of Duttaphrynus melanostictus tadpoles
Thursday, March 4th, 2010M.R. Wijesinghe, B.A.D.M.C. Jayatillake and W.D. Ratnasooriya
This study investigated the impact of a commonly used carbamate pesticide, carbofuran, on survival, growth, development and activity of larvae of the Asian Common Toad, Duttaphrynus melanostictus Schneider 1999. Continuous exposure trials of 15 days were conducted using tadpoles of Gosner stages 24-25 with a commercial grade carbofuran (Curaterr […]
Diversity and microhabitats of termites in a natural and a secondary forest in Hantane hills, Kandy District
Thursday, March 4th, 2010I.I. Hemachandra, 1,2, J.P. Edirisinghe 1, W.A.I.P. Karunaratne 1, C.V.S. Gunatilleke3
Termites (Isoptera) are the most important decomposers in tropical rain forests and are vital in maintaining nitrogen and carbon cycles. They are sensitive to disturbances, especially to forest canopy losses and hence are one of the important bioindicator taxa. The documented termite fauna of Sri […]
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