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Temporal modelling of Lymnaea natalensis (Krauss, 1848) in tropical aquatic habitats
Lymnaea natalensis is the only snail intermediate host of Fasciola gigantica, the causative agent of fascioliasis, in Nigeria. The species also serves as intermediate host for many other African trematode species of medical and veterinary importance, and it is found throughout the country. However,...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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AOSIS
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10244977/ https://www.ncbi.nlm.nih.gov/pubmed/37265142 http://dx.doi.org/10.4102/ojvr.v90i1.2023 |
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author | Oso, Opeyemi G. Sunday, Joseph O. Odaibo, Alexander B. |
author_facet | Oso, Opeyemi G. Sunday, Joseph O. Odaibo, Alexander B. |
author_sort | Oso, Opeyemi G. |
collection | PubMed |
description | Lymnaea natalensis is the only snail intermediate host of Fasciola gigantica, the causative agent of fascioliasis, in Nigeria. The species also serves as intermediate host for many other African trematode species of medical and veterinary importance, and it is found throughout the country. However, there is no detailed information on the factors that influence its distribution and seasonal abundance in the tropical aquatic habitats in Nigeria. This study used the geographic information system and remotely sensed data to develop models for predicting the distribution of L. natalensis in South-Western Nigeria. Both land surface temperature (LST) and normalised difference vegetation index (NDVI) were extracted from Landsat satellite imagery; other variables (slope and elevation) were extracted from a digital elevation model (DEM) while rainfall data were retrieved from the European Meteorology Research Programme (EMRP). These environmental variables were integrated into a geographic information system (GIS) to predict suitable habitats of L. natalensis using exploratory regression. A total of 1410 L. natalensis snails were collected vis-à-vis 22 sampling sites. Built-up areas recorded more L. natalensis compared with farmlands. There was no significant difference in the abundance of snails with season (p > 0.05). The regression models showed that rainfall, NDVI, and slope were predictors of L. natalensis distribution. The habitats suitable for L. natalensis were central areas, while areas to the north and south were not suitable for L. natalensis. CONTRIBUTION: The predictive risk models of L. natalensis in the study will be useful in mapping other areas where the snail sampling could not be conducted. |
format | Online Article Text |
id | pubmed-10244977 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | AOSIS |
record_format | MEDLINE/PubMed |
spelling | pubmed-102449772023-06-08 Temporal modelling of Lymnaea natalensis (Krauss, 1848) in tropical aquatic habitats Oso, Opeyemi G. Sunday, Joseph O. Odaibo, Alexander B. Onderstepoort J Vet Res Original Research Lymnaea natalensis is the only snail intermediate host of Fasciola gigantica, the causative agent of fascioliasis, in Nigeria. The species also serves as intermediate host for many other African trematode species of medical and veterinary importance, and it is found throughout the country. However, there is no detailed information on the factors that influence its distribution and seasonal abundance in the tropical aquatic habitats in Nigeria. This study used the geographic information system and remotely sensed data to develop models for predicting the distribution of L. natalensis in South-Western Nigeria. Both land surface temperature (LST) and normalised difference vegetation index (NDVI) were extracted from Landsat satellite imagery; other variables (slope and elevation) were extracted from a digital elevation model (DEM) while rainfall data were retrieved from the European Meteorology Research Programme (EMRP). These environmental variables were integrated into a geographic information system (GIS) to predict suitable habitats of L. natalensis using exploratory regression. A total of 1410 L. natalensis snails were collected vis-à-vis 22 sampling sites. Built-up areas recorded more L. natalensis compared with farmlands. There was no significant difference in the abundance of snails with season (p > 0.05). The regression models showed that rainfall, NDVI, and slope were predictors of L. natalensis distribution. The habitats suitable for L. natalensis were central areas, while areas to the north and south were not suitable for L. natalensis. CONTRIBUTION: The predictive risk models of L. natalensis in the study will be useful in mapping other areas where the snail sampling could not be conducted. AOSIS 2023-05-10 /pmc/articles/PMC10244977/ /pubmed/37265142 http://dx.doi.org/10.4102/ojvr.v90i1.2023 Text en © 2023. The Authors https://creativecommons.org/licenses/by/4.0/Licensee: AOSIS. This work is licensed under the Creative Commons Attribution License. |
spellingShingle | Original Research Oso, Opeyemi G. Sunday, Joseph O. Odaibo, Alexander B. Temporal modelling of Lymnaea natalensis (Krauss, 1848) in tropical aquatic habitats |
title | Temporal modelling of Lymnaea natalensis (Krauss, 1848) in tropical aquatic habitats |
title_full | Temporal modelling of Lymnaea natalensis (Krauss, 1848) in tropical aquatic habitats |
title_fullStr | Temporal modelling of Lymnaea natalensis (Krauss, 1848) in tropical aquatic habitats |
title_full_unstemmed | Temporal modelling of Lymnaea natalensis (Krauss, 1848) in tropical aquatic habitats |
title_short | Temporal modelling of Lymnaea natalensis (Krauss, 1848) in tropical aquatic habitats |
title_sort | temporal modelling of lymnaea natalensis (krauss, 1848) in tropical aquatic habitats |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10244977/ https://www.ncbi.nlm.nih.gov/pubmed/37265142 http://dx.doi.org/10.4102/ojvr.v90i1.2023 |
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