Modelling temporal dynamics of Culicoides Latreille (Diptera: Ceratopogonidae) populations on Reunion Island (Indian Ocean), vectors of viruses of veterinary importance
Background: Reunion Island regularly faces outbreaks of epizootic haemorrhagic disease (EHD) and bluetongue (BT), two viral diseases transmitted by haematophagous midges of the genus Culicoides (Diptera: Ceratopogonidae) to ruminants. To date, five species of Culicoides are recorded in Reunion Island in which the first two are proven vector species: Culicoides bolitinos, C. imicola, C. enderleini, C. grahamii and C. kibatiensis. Meteorological and environmental factors can severely constrain Culicoides populations and activities and thereby affect dispersion and intensity of transmission of Culicoides-borne viruses. The aim of this study was to describe and predict the temporal dynamics of all Culicoides species present in Reunion Island. Methods: Between 2016 and 2018, 55 biweekly Culicoides catches using Onderstepoort Veterinary Institute traps were set up in 11 sites. A hurdle model (i.e. a presence/absence model combined with an abundance model) was developed for each species in order to determine meteorological and environmental drivers of presence and abundance of Culicoides. Results: Abundance displayed very strong heterogeneity between sites. Average Culicoides catch per site per night ranged from 4 to 45,875 individuals. Culicoides imicola was dominant at low altitude and C. kibatiensis at high altitude. A marked seasonality was observed for the three other species with annual variations. Twelve groups of variables were tested. It was found that presence and/or abundance of all five Culicoides species were driven by common parameters: rain, temperature, vegetation index, forested environment and host density. Other parameters such as wind speed and farm building opening size governed abundance level of some species. In addition, Culicoides populations were also affected by meteorological parameters and/or vegetation index with different lags of time, suggesting an impact on immature stages. Taking into account all the parameters for the final hurdle model, the error rate by Normalized Root mean Square Error ranged from 4.4 to 8.5%. Conclusions: To our knowledge, this is the first study to model Culicoides population dynamics in Reunion Island. In the absence of vaccination and vector control strategies, determining periods of high abundance of Culicoides is a crucial first step towards identifying periods at high risk of transmission for the two economically important viruses they transmit.
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Format: | article biblioteca |
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Subjects: | L73 - Maladies des animaux, U10 - Informatique, mathématiques et statistiques, vecteur de maladie, épizootie, Culicoides, surveillance épidémiologique, http://aims.fao.org/aos/agrovoc/c_8164, http://aims.fao.org/aos/agrovoc/c_10642, http://aims.fao.org/aos/agrovoc/c_10196, http://aims.fao.org/aos/agrovoc/c_16411, http://aims.fao.org/aos/agrovoc/c_6543, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/594241/ http://agritrop.cirad.fr/594241/1/Grimaud%20et%20al%202019%20P%26V.pdf |
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L73 - Maladies des animaux U10 - Informatique, mathématiques et statistiques vecteur de maladie épizootie Culicoides surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_10642 http://aims.fao.org/aos/agrovoc/c_10196 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 L73 - Maladies des animaux U10 - Informatique, mathématiques et statistiques vecteur de maladie épizootie Culicoides surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_10642 http://aims.fao.org/aos/agrovoc/c_10196 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 |
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L73 - Maladies des animaux U10 - Informatique, mathématiques et statistiques vecteur de maladie épizootie Culicoides surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_10642 http://aims.fao.org/aos/agrovoc/c_10196 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 L73 - Maladies des animaux U10 - Informatique, mathématiques et statistiques vecteur de maladie épizootie Culicoides surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_10642 http://aims.fao.org/aos/agrovoc/c_10196 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 Grimaud, Yannick Guis, Hélène Chiroleu, Frédéric Boucher, Floriane Tran, Annelise Rakotoarivony, Ignace Duhayon, Maxime Cetre-Sossah, Catherine Esnault, Olivier Cardinale, Eric Garros, Claire Modelling temporal dynamics of Culicoides Latreille (Diptera: Ceratopogonidae) populations on Reunion Island (Indian Ocean), vectors of viruses of veterinary importance |
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Background: Reunion Island regularly faces outbreaks of epizootic haemorrhagic disease (EHD) and bluetongue (BT), two viral diseases transmitted by haematophagous midges of the genus Culicoides (Diptera: Ceratopogonidae) to ruminants. To date, five species of Culicoides are recorded in Reunion Island in which the first two are proven vector species: Culicoides bolitinos, C. imicola, C. enderleini, C. grahamii and C. kibatiensis. Meteorological and environmental factors can severely constrain Culicoides populations and activities and thereby affect dispersion and intensity of transmission of Culicoides-borne viruses. The aim of this study was to describe and predict the temporal dynamics of all Culicoides species present in Reunion Island. Methods: Between 2016 and 2018, 55 biweekly Culicoides catches using Onderstepoort Veterinary Institute traps were set up in 11 sites. A hurdle model (i.e. a presence/absence model combined with an abundance model) was developed for each species in order to determine meteorological and environmental drivers of presence and abundance of Culicoides. Results: Abundance displayed very strong heterogeneity between sites. Average Culicoides catch per site per night ranged from 4 to 45,875 individuals. Culicoides imicola was dominant at low altitude and C. kibatiensis at high altitude. A marked seasonality was observed for the three other species with annual variations. Twelve groups of variables were tested. It was found that presence and/or abundance of all five Culicoides species were driven by common parameters: rain, temperature, vegetation index, forested environment and host density. Other parameters such as wind speed and farm building opening size governed abundance level of some species. In addition, Culicoides populations were also affected by meteorological parameters and/or vegetation index with different lags of time, suggesting an impact on immature stages. Taking into account all the parameters for the final hurdle model, the error rate by Normalized Root mean Square Error ranged from 4.4 to 8.5%. Conclusions: To our knowledge, this is the first study to model Culicoides population dynamics in Reunion Island. In the absence of vaccination and vector control strategies, determining periods of high abundance of Culicoides is a crucial first step towards identifying periods at high risk of transmission for the two economically important viruses they transmit. |
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L73 - Maladies des animaux U10 - Informatique, mathématiques et statistiques vecteur de maladie épizootie Culicoides surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_10642 http://aims.fao.org/aos/agrovoc/c_10196 http://aims.fao.org/aos/agrovoc/c_16411 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Grimaud, Yannick Guis, Hélène Chiroleu, Frédéric Boucher, Floriane Tran, Annelise Rakotoarivony, Ignace Duhayon, Maxime Cetre-Sossah, Catherine Esnault, Olivier Cardinale, Eric Garros, Claire |
author_facet |
Grimaud, Yannick Guis, Hélène Chiroleu, Frédéric Boucher, Floriane Tran, Annelise Rakotoarivony, Ignace Duhayon, Maxime Cetre-Sossah, Catherine Esnault, Olivier Cardinale, Eric Garros, Claire |
author_sort |
Grimaud, Yannick |
title |
Modelling temporal dynamics of Culicoides Latreille (Diptera: Ceratopogonidae) populations on Reunion Island (Indian Ocean), vectors of viruses of veterinary importance |
title_short |
Modelling temporal dynamics of Culicoides Latreille (Diptera: Ceratopogonidae) populations on Reunion Island (Indian Ocean), vectors of viruses of veterinary importance |
title_full |
Modelling temporal dynamics of Culicoides Latreille (Diptera: Ceratopogonidae) populations on Reunion Island (Indian Ocean), vectors of viruses of veterinary importance |
title_fullStr |
Modelling temporal dynamics of Culicoides Latreille (Diptera: Ceratopogonidae) populations on Reunion Island (Indian Ocean), vectors of viruses of veterinary importance |
title_full_unstemmed |
Modelling temporal dynamics of Culicoides Latreille (Diptera: Ceratopogonidae) populations on Reunion Island (Indian Ocean), vectors of viruses of veterinary importance |
title_sort |
modelling temporal dynamics of culicoides latreille (diptera: ceratopogonidae) populations on reunion island (indian ocean), vectors of viruses of veterinary importance |
url |
http://agritrop.cirad.fr/594241/ http://agritrop.cirad.fr/594241/1/Grimaud%20et%20al%202019%20P%26V.pdf |
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dig-cirad-fr-5942412024-01-29T02:26:09Z http://agritrop.cirad.fr/594241/ http://agritrop.cirad.fr/594241/ Modelling temporal dynamics of Culicoides Latreille (Diptera: Ceratopogonidae) populations on Reunion Island (Indian Ocean), vectors of viruses of veterinary importance. Grimaud Yannick, Guis Hélène, Chiroleu Frédéric, Boucher Floriane, Tran Annelise, Rakotoarivony Ignace, Duhayon Maxime, Cetre-Sossah Catherine, Esnault Olivier, Cardinale Eric, Garros Claire. 2019. Parasites and Vectors, 12:562, 17 p.https://doi.org/10.1186/s13071-019-3812-1 <https://doi.org/10.1186/s13071-019-3812-1> Modelling temporal dynamics of Culicoides Latreille (Diptera: Ceratopogonidae) populations on Reunion Island (Indian Ocean), vectors of viruses of veterinary importance Grimaud, Yannick Guis, Hélène Chiroleu, Frédéric Boucher, Floriane Tran, Annelise Rakotoarivony, Ignace Duhayon, Maxime Cetre-Sossah, Catherine Esnault, Olivier Cardinale, Eric Garros, Claire eng 2019 Parasites and Vectors L73 - Maladies des animaux U10 - Informatique, mathématiques et statistiques vecteur de maladie épizootie Culicoides surveillance épidémiologique http://aims.fao.org/aos/agrovoc/c_8164 http://aims.fao.org/aos/agrovoc/c_10642 http://aims.fao.org/aos/agrovoc/c_10196 http://aims.fao.org/aos/agrovoc/c_16411 La Réunion France http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_3081 Background: Reunion Island regularly faces outbreaks of epizootic haemorrhagic disease (EHD) and bluetongue (BT), two viral diseases transmitted by haematophagous midges of the genus Culicoides (Diptera: Ceratopogonidae) to ruminants. To date, five species of Culicoides are recorded in Reunion Island in which the first two are proven vector species: Culicoides bolitinos, C. imicola, C. enderleini, C. grahamii and C. kibatiensis. Meteorological and environmental factors can severely constrain Culicoides populations and activities and thereby affect dispersion and intensity of transmission of Culicoides-borne viruses. The aim of this study was to describe and predict the temporal dynamics of all Culicoides species present in Reunion Island. Methods: Between 2016 and 2018, 55 biweekly Culicoides catches using Onderstepoort Veterinary Institute traps were set up in 11 sites. A hurdle model (i.e. a presence/absence model combined with an abundance model) was developed for each species in order to determine meteorological and environmental drivers of presence and abundance of Culicoides. Results: Abundance displayed very strong heterogeneity between sites. Average Culicoides catch per site per night ranged from 4 to 45,875 individuals. Culicoides imicola was dominant at low altitude and C. kibatiensis at high altitude. A marked seasonality was observed for the three other species with annual variations. Twelve groups of variables were tested. It was found that presence and/or abundance of all five Culicoides species were driven by common parameters: rain, temperature, vegetation index, forested environment and host density. Other parameters such as wind speed and farm building opening size governed abundance level of some species. In addition, Culicoides populations were also affected by meteorological parameters and/or vegetation index with different lags of time, suggesting an impact on immature stages. Taking into account all the parameters for the final hurdle model, the error rate by Normalized Root mean Square Error ranged from 4.4 to 8.5%. Conclusions: To our knowledge, this is the first study to model Culicoides population dynamics in Reunion Island. In the absence of vaccination and vector control strategies, determining periods of high abundance of Culicoides is a crucial first step towards identifying periods at high risk of transmission for the two economically important viruses they transmit. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/594241/1/Grimaud%20et%20al%202019%20P%26V.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.1186/s13071-019-3812-1 10.1186/s13071-019-3812-1 info:eu-repo/semantics/altIdentifier/doi/10.1186/s13071-019-3812-1 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1186/s13071-019-3812-1 info:eu-repo/semantics/reference/purl/https://doi.org/10.18167/DVN1/LUFIF6 |