L P Jayatissa's research while affiliated with University of Ruhuna and other places
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Publications (12)
Mangrove forests are reported to be invaded by invasive alien species (IAS). This study was therefore aimed at studying the level of distribution of the IAS, Acacia auriculiformis A. Cunn. ex Benth. in mangrove ecosystems in the southern coast of Sri Lanka and assessing the risk to periphery of mangrove forest by considering the Rekawa mangrove for...
As a tropical island nation, Sri Lanka has a 1740 km coastal strip, dominated by mangroves, salt marshes and seagrass meadows i.e., blue carbon ecosystems, that play a vital role in ecosystem functioning and services. These ecosystems have a high capacity for storing carbon within their ecosystem pools by capturing atmospheric carbon dioxide (CO2)...
Carbon that is stored and sequestered in marine coastal ecosystems, such as mangroves, salt marshes and seagrass meadows is termed as Blue Carbon, which plays an important role in the global carbon cycle and climate change mitigation. It has long been known that mangroves which are confined to tropical and subtropical latitudes, have higher rates o...
Walawe river, which is located in Ambalantota, belonging to dry zone of Sri Lanka is highly exploited for domestic and irrigation purposes. Seawater intrusion in the river adversely affect the livelihood of bordering communities by hindering freshwater availability and salinization of agricultural lands. Present study determined the level of salini...
Seed dormancy is a phenomenon that prevents an undamaged viable seed from germinating under favourable conditions. Various techniques have been applied to break dormancy in many weed-seeds based studies. The present study aimed to seek the most appropriate dormancy breaking method for six selected common weed species namely Cardamine hirsute (walab...
This study aimed to assess the heavy metal (HM) profile of the main upland tributaries of three major rivers, the Mahaweli, the Deduru and the Gin Rivers, which are commonly used for urban water supply in Sri Lanka. The HM profiles of arsenic (As), cadmium (Cd), lead (Pb) and mercury (Hg) were investigated by ICP-MS. Land-use classification was per...
Heavy metal (HM) pollution has become a serious threat to coastal aquatic ecosystems. This study, therefore, aimed at assessing the spatial distribution of selected heavy metals/metalloids including Arsenic (As), Cadmium (Cd), Chromium (Cr), Lead (Pb), and Mercury (Hg) in surface sediment (0–15 cm) samples collected across Kalametiya Lagoon in sout...
Mangroves, the tidal forests serve numerous ecological services and economic benefits for the well-being of the coastal communities. Hence, they are known as resourceful ecosystems and can be used effectively for new advancements in science. Many research have been conducted in the fields of mangrove ecology, anatomy, floral biology, reproduction e...
Spatio-temporal changes during the last twelve year period (2006–2017) and their impacts on ecological and socio-economic status of Dondra lagoon, southern coast of Sri Lanka were studied as many lagoons in southern Sri Lanka are being seriously affected due to anthropogenic pressure in the recent past. The changes of Dondra lagoon and its immediat...
Citations
... Indeed, even though the reedbeds resulted from a recent invasion of the lagoon, they now sustain an important part of Kalametiya's avifaunal diversity. This confirms that, as mentioned by [12], a management plan with the objective of returning the entire lagoon to its past state could disturb this community and lead to significant changes in bird species composition. The removal of vegetated areas to retrieve past water surfaces could be expected to negatively impact bird species relying on the new habitats while benefiting species relying on water resources, leading to a shift in the community composition. ...
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