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Spatial distribution and habitat selection of culicoides imicola: The potential vector of bluetongue virus in Tunisia
The increasing threat of vector-borne diseases (VBDs) represents a great challenge to those who manage public and animal health. Determining the spatial distribution of arthropod vector species is an essential step in studying the risk of transmission of a vector-borne pathogen (VBP) and in estimati...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
AOSIS
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8424768/ https://www.ncbi.nlm.nih.gov/pubmed/34476951 http://dx.doi.org/10.4102/ojvr.v88i1.1861 |
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author | Thameur, Ben H. Soufiène, Sghaier Haj Ammar, Heni Hammami, Salah |
author_facet | Thameur, Ben H. Soufiène, Sghaier Haj Ammar, Heni Hammami, Salah |
author_sort | Thameur, Ben H. |
collection | PubMed |
description | The increasing threat of vector-borne diseases (VBDs) represents a great challenge to those who manage public and animal health. Determining the spatial distribution of arthropod vector species is an essential step in studying the risk of transmission of a vector-borne pathogen (VBP) and in estimating risk levels of VBD. Risk maps allow better targeting surveillance and help in designing control measures. We aimed to study the geographical distribution of Culicoides imicola, the main competent vector of Bluetongue virus (BTV) in sheep in Tunisia. Fifty-three records covering the whole distribution range of C.imicola in Tunisia were obtained during a 2-year field entomological survey (August 2017 – January 2018 and August 2018 – January 2019). The ecological niche of C. imicola is described using ecological-niche factor analysis (ENFA) and Mahalanobis distances factor analysis (MADIFA). An environmental suitability map (ESM) was developed by MaxEnt software to map the optimal habitat under the current climate background. The MaxEnt model was highly accurate with a statistically significant area under curve (AUC) value of 0.941. The location of the potential distribution of C. imicola is predicted in specified regions of Tunisia. Our findings can be applied in various ways such as surveillance and control program of BTV in Tunisia. |
format | Online Article Text |
id | pubmed-8424768 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | AOSIS |
record_format | MEDLINE/PubMed |
spelling | pubmed-84247682021-09-13 Spatial distribution and habitat selection of culicoides imicola: The potential vector of bluetongue virus in Tunisia Thameur, Ben H. Soufiène, Sghaier Haj Ammar, Heni Hammami, Salah Onderstepoort J Vet Res Original Research The increasing threat of vector-borne diseases (VBDs) represents a great challenge to those who manage public and animal health. Determining the spatial distribution of arthropod vector species is an essential step in studying the risk of transmission of a vector-borne pathogen (VBP) and in estimating risk levels of VBD. Risk maps allow better targeting surveillance and help in designing control measures. We aimed to study the geographical distribution of Culicoides imicola, the main competent vector of Bluetongue virus (BTV) in sheep in Tunisia. Fifty-three records covering the whole distribution range of C.imicola in Tunisia were obtained during a 2-year field entomological survey (August 2017 – January 2018 and August 2018 – January 2019). The ecological niche of C. imicola is described using ecological-niche factor analysis (ENFA) and Mahalanobis distances factor analysis (MADIFA). An environmental suitability map (ESM) was developed by MaxEnt software to map the optimal habitat under the current climate background. The MaxEnt model was highly accurate with a statistically significant area under curve (AUC) value of 0.941. The location of the potential distribution of C. imicola is predicted in specified regions of Tunisia. Our findings can be applied in various ways such as surveillance and control program of BTV in Tunisia. AOSIS 2021-08-16 /pmc/articles/PMC8424768/ /pubmed/34476951 http://dx.doi.org/10.4102/ojvr.v88i1.1861 Text en © 2021. The Authors https://creativecommons.org/licenses/by/4.0/Licensee: AOSIS. This work is licensed under the Creative Commons Attribution License. |
spellingShingle | Original Research Thameur, Ben H. Soufiène, Sghaier Haj Ammar, Heni Hammami, Salah Spatial distribution and habitat selection of culicoides imicola: The potential vector of bluetongue virus in Tunisia |
title | Spatial distribution and habitat selection of culicoides imicola: The potential vector of bluetongue virus in Tunisia |
title_full | Spatial distribution and habitat selection of culicoides imicola: The potential vector of bluetongue virus in Tunisia |
title_fullStr | Spatial distribution and habitat selection of culicoides imicola: The potential vector of bluetongue virus in Tunisia |
title_full_unstemmed | Spatial distribution and habitat selection of culicoides imicola: The potential vector of bluetongue virus in Tunisia |
title_short | Spatial distribution and habitat selection of culicoides imicola: The potential vector of bluetongue virus in Tunisia |
title_sort | spatial distribution and habitat selection of culicoides imicola: the potential vector of bluetongue virus in tunisia |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8424768/ https://www.ncbi.nlm.nih.gov/pubmed/34476951 http://dx.doi.org/10.4102/ojvr.v88i1.1861 |
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