Zoology: Recent submissions

Now showing items 21-40 of 762

Advancing tourism demand forecasting in Sri Lanka: evaluating the performance of machine learning models and the impact of social media data integration

Hewapathirana, Isuru Udayangani (Emerald Publishing Limited, 2023)

Purpose – This study explores the pioneering approach of utilising machine learning (ML) models and integrating social media data for predicting tourist arrivals in Sri Lanka. Design/methodology/approach – Two sets of ...
Population size and factors affecting the distribution of Pelecanus philippensis (Pelecaniformes: Pelicanidae) in Colombo district, the Western province of Sri Lanka

Weerasinghe, Ayoma Senanee; Epa, Udaya Priyantha Kankanamge (TCRP Foundation, 2023)

Spot-billed Pelican (Pelecanus philippensis) is a near-threatened bird found only in South and Southeast Asia. Colombo, the commercial capital of Sri Lanka, holds a naturalized population of P. philippensis released from ...
Detection of Zn2+ ions using a high-affinity low-molecular-weight fluorescence probe in two freshwater organisms

Shrestha, Ashok K.; Samarakoon, Thilomi; Fujino, Takeshi; Hagimori, Masayori (Korean Society of Environmental Risk Assessment and Health Science, 2023)

Objective The objective of this study was to determine the uptake and distribution of zinc ions (Zn2+) in two freshwater organisms, Moina macrocopa and Rheocricotopus larvae using a high-affinity low-molecular-weight ...
Sustainable Approaches forWastewater Treatment: An Analysis of Sludge-Based Materials for Heavy Metal Removal from Wastewater by Adsorption

Rajakaruna, R. M. A. S. Dhananjana; Sewwandi, B. G. N.; Najim, Mohamed M. M.; Baig, Mirza Barjees; Alotaibi, Bader Alhafi; Traore, Abou (2023)

A comprehensive study incorporating results from different findings related to heavy metal removals from wastewater using sludge as an absorbent will assist researchers and practitioners in planning wastewater treatment ...
Individual and combined effects of humic acid on life-history characteristics of the water flea Moina macrocopa upon whole-lifespan cadmium exposure

Samarakoon, Thilomi; Fujino, Takeshi (Springer Nature Switzerland AG, 2023)

Investigation of the effects of natural compounds in aquatic ecosystems on the modula- tion of toxicity of coexisting xenobiotics is impor- tant for realistic ecological risk assessments. We investigated the individual and ...
The Biology and Ecology of the Silky Shark, Carcharhinus falciformis

Bonfil, Ramón (2023)

The silky shark (Carcharhinus falciformis), an inhabitant of coastal and oceanic waters in tropical regions, is among the world’s most abundant and cosmopolitan shark species. It is caught in signi cant numbers in directed ...
A Preliminary Study on the Relationship between Arthropod Diversity and Vegetation Diversity in Four Contrasting Ecosystems in Hanthana Mountain Range of Sri Lanka, during the Post-Monsoon Dry Season

Weerathunga, W. A. Manasee; Athapaththu, A. M. Gihan; Amarasinghe, L. D. (2023)

This study assesses the relationship between arthropod and vegetation diversity in four ecosystems with different types of vegetation, during a post-monsoonal season. We determined the arthropod diversity in vegetation ...
Remote sensing approaches to assess the Fall Armyworm (Spodoptera frugiperda) infestation on maize crop: a case study from Sri Lanka

Abeygunawardhana, Aruni Upeksha Dias; Watawala, Ransilu Chaminda; Weerasinghe, Primali; de Silva, Wasana (The Colegio de Postgraduados, 2023)

Managing pests and diseases of crops is important to ensuring global food security. Fall armyworm (Spodoptera frugiperda) is an invasive pest in Sri Lanka, causing significant damage to maize cultivation on the island. ...
Invasion Risks of Aquarium Fish Trade to the Natural Environment in Sri Lanka

Epa, Udaya Priyantha Kankanamge; Piyathissa, Madalusse Gedara Maheshika Udayangani; Ranasinghe, Sangasinghe Devage Achila Eshani; Ranasinghe, Yahani Gayara; Rathnayaka, Rathnayaka Mudiyanselage Kalhari Harsha (Department of Zoology and Environmental Management, University of Kelaniya, Kelaniya, Sri Lanka, 2023)

Sri Lanka, one of the world’s biological hotspots, exports wild-caught and farm-bred aquarium fish species to more than 70 countries. This study evaluated the potential for invasiveness of aquarium fish species now raised ...
Diversity and species composition of microbiota associated with dengue mosquito breeding habitats: A cross-sectional study from selected areas in Udapalatha MOH division, Sri Lanka

Kumari, Yashoda; Amarasinghe, Deepika; Ranasinghe, Koshila (Wolters Kluwer Medknow publications, 2023)

Objective: To determine the diversity of microbiota associated with different breeding habitats of dengue vector mosquitoes Aedes (Ae.) aegypti and Ae. albopictus and to identify any parasitic, epibiont, pathogenic, ...
Allelopathic effects of the invasive plant Wedelia (Sphagneticola trilobata L.) aqueous extract on common beans (Phaseolus vulgaris L.)

Perera, K.R.S.; Ratnayake, R.M.C.S.; Epa, U.P.K. (Horizon publishers India, 2023)

Sphagneticola trilobata (L.) Pruski is an alien invasive weed with aggressive growth habits, environmental stress tolerance, and the ability to synthesize allelochemicals. However, in many parts of the world, this plant ...
Use of ethanol (95%) extract of Anacardium occidentale (Linnaeus 1753) to control Centrocestus formosanus (Nishigori 1924) infection in Xiphophorus hellerii (Heckel 1848)

Kankanamge Epa, U. P.,; Premarathna, A. S. (International Journal of Aquatic Biology, 2023)

Centrocestus formosanus (Nishigori 1924) is a trematode parasite introduced into many parts of the world through the aquarium fish trade. Its infection causes high fish mortalities and economic losses to fish farmers ...
Application of water pollution and heavy metal pollution indices to evaluate the water quality in St. Sebastian Canal, Colombo, Sri Lanka.

Hemachandra, S.C.S.M.; Sewwandi, B.G.N. (Environmental Nanotechnology Monitoring and Management, 2023)

Anthropogenic pollution plays an important role in deteriorating the water quality of canals worldwide, espe- cially in developing countries like Sri Lanka. The St. Sebastian Canal is one of the main canals in Sri Lanka, ...
Comparative study on the larvicidal effect of some ciliated protists on Culex gelidus, Culex tritaeniorhynchus, and Aedes aegypti in Sri Lanka

Wijesinghe, S.; Amarasinghe, D. (Parasitology Research, 2022)

Rice fields in Sri Lanka create suitable breeding places for vector mosquitoes. Such sites provide habitats for diversified naturally occurring microbiota. Ciliated protists, Zoothamnium sp., Chilodonella sp., and Vorticella ...
Groundwater Pollution Impact on Food Security

Irfeey, A. M. M.; Najim, M. M. M.; Alotaibi, B. A.; Traore, A. (Sustainability, 2023)

Global food security challenges have been burdened by a rapidly expanding population and its attendant food demands. Safer and higher-quality agriculture is one of the most essential solutions for addressing the growing ...
Food packaging from recycled papers: chemical, physical, optical properties and heavy metal migration

Bandara, R.; Indunil, G. (Heliyon, 2022)

Paper recycling is a viable option for wastepaper management. This study assessed the suitability of recycled papers as a food packaging material. Permanence and durability of three different recycled papers; R1:150 GSM, ...
Effect of delayed mating on reproductive performance and life-history parameters of dengue vector Aedes aegypti

Gunathilaka, R. A. K. M.; Jayatunga, D. P. W.; Ganehiarachchi, G. A. S. M. (Bulletin of Entomological Research, 2022)

Dengue is a fast-spreading mosquito-borne viral disease in the world. The primary vector of the disease is Aedes aegypti of the family Culicidae. It is a container breeder. Since a vaccine or a drug has not been developed ...
Effect of ABO and Rh blood groups on host preference, oviposition success, and development of laboratory‑reared Aedes aegypti

Galhena, G. K. D. N.; Ganehiarachchi, G. A. S. M.; Gunathilaka, R. A. K. M.; Jayatunga, D. P. W. (International Journal of Tropical Insect Science, 2022)

Aedes aegypti is the primary dengue vector in Sri Lanka that causes the massive public health problem of Dengue Fever (DF) and Dengue Hemorrhagic Fever (DHF) on the island. It is an anthropophilic mosquito that shows ...
Dengue prediction modelling and development of area-specific thresholds for epidemic management in urban settings of Gampaha district, Sri Lanka

Dalpadado, R.; Amarasinghe, D.; Gunathilaka, N.; Wijayanayake, A. (International Research and Innovation Symposium on Dengue amidst the Pandemic, 2022)

Introduction and objectives The growing global threat of dengue in both endemic and non-endemic countries have shifted the attention to establishing an early warning system to assist in dengue control and effectively ...
Effects of hydrological regimes and limnological parameters on plankton community properties in tropical irrigation reservoirs: A Sri Lankan case study

Weerakoon, S. N.; Chandrasekara, W. U.; Amarasinghe, U. S. (Lakes & Reservoirs, 2021)

Water-level fluctuations are reported to be key processes influencing ecosystem structure and functions in lentic aquatic ecosystems such as reservoirs. The plankton community structure in reservoirs, being useful ...

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