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Start Over Author "Rakotoarivony, Ignace" Journal parasites & vectors
20 results on '"Rakotoarivony, Ignace"'

4. Correction to: The tree that hides the forest: cryptic diversity and phylogenetic relationships in the Palaearctic vector Obsoletus/Scoticus complex (Diptera: Ceratopogonidae) at the European level

Author

Mignotte, Antoine, Garros, Claire, Gardès, Laetitia, Balenghien, Thomas, Duhayon, Maxime, Rakotoarivony, Ignace, Tabourin, Laura, Poujol, Léa, Mathieu, Bruno, Ibañez-Justicia, Adolfo, Deniz, Ahmet, Cvetkovikj, Aleksandar, Purse, Bethan V., Ramilo, David W., Stougiou, Despoina, Werner, Doreen, Pudar, Dubravka, Petrić, Dušan, Veronesi, Eva, Jacobs, Frans, Kampen, Helge, da Fonseca, Isabel Pereira, Lucientes, Javier, Navarro, Javier, la Puente, Josue Martinez-de, Stefanovska, Jovana, Searle, Kate R., Khallaayoune, Khalid, Lorna Culverwell, C., Larska, Magdalena, Bourquia, Maria, Goffredo, Maria, Bisia, Marina, England, Marion, Robin, Matthew, Quaglia, Michela, Miranda-Chueca, Miguel Ángel, Bødker, René, Estrada-Peña, Rosa, Carpenter, Simon, Tchakarova, Simona, Boutsini, Sofia, Sviland, Ståle, Schäfer, Stefanie M., Ozoliņa, Zanda, Segliņa, Zanda, Vatansever, Zati, and Huber, Karine

Published
2020
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5. The tree that hides the forest: cryptic diversity and phylogenetic relationships in the Palaearctic vector Obsoletus/Scoticus Complex (Diptera: Ceratopogonidae) at the European level

Author

Mignotte, Antoine, Garros, Claire, Gardès, Laetitia, Balenghien, Thomas, Duhayon, Maxime, Rakotoarivony, Ignace, Tabourin, Laura, Poujol, Léa, Mathieu, Bruno, Ibañez-Justicia, Adolfo, Deniz, Ahmet, Cvetkovikj, Aleksandar, Purse, Bethan V., Ramilo, David W., Stougiou, Despoina, Werner, Doreen, Pudar, Dubravka, Petrić, Dušan, Veronesi, Eva, Jacobs, Frans, Kampen, Helge, Pereira da Fonseca, Isabel, Lucientes, Javier, Navarro, Javier, de la Puente, Josue Martinez, Stefanovska, Jovana, Searle, Kate R., Khallaayoune, Khalid, Culverwell, C. Lorna, Larska, Magdalena, Bourquia, Maria, Goffredo, Maria, Bisia, Marina, England, Marion, Robin, Matthew, Quaglia, Michela, Miranda-Chueca, Miguel Ángel, Bødker, René, Estrada-Peña, Rosa, Carpenter, Simon, Tchakarova, Simona, Boutsini, Sofia, Sviland, Ståle, Schäfer, Stefanie M., Ozoliņa, Zanda, Segliņa, Zanda, Vatansever, Zati, and Huber, Karine

Published
2020
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6. Modelling the monthly abundance of Culicoides biting midges in nine European countries using Random Forests machine learning

Author

Cuéllar, Ana Carolina, Kjær, Lene Jung, Baum, Andreas, Stockmarr, Anders, Skovgard, Henrik, Nielsen, Søren Achim, Andersson, Mats Gunnar, Lindström, Anders, Chirico, Jan, Lühken, Renke, Steinke, Sonja, Kiel, Ellen, Gethmann, Jörn, Conraths, Franz J., Larska, Magdalena, Smreczak, Marcin, Orłowska, Anna, Hamnes, Inger, Sviland, Ståle, Hopp, Petter, Brugger, Katharina, Rubel, Franz, Balenghien, Thomas, Garros, Claire, Rakotoarivony, Ignace, Allène, Xavier, Lhoir, Jonathan, Chavernac, David, Delécolle, Jean-Claude, Mathieu, Bruno, Delécolle, Delphine, Setier-Rio, Marie-Laure, Scheid, Bethsabée, Chueca, Miguel Ángel Miranda, Barceló, Carlos, Lucientes, Javier, Estrada, Rosa, Mathis, Alexander, Venail, Roger, Tack, Wesley, and Bødker, Rene

Published
2020
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9. Monthly variation in the probability of presence of adult Culicoides populations in nine European countries and the implications for targeted surveillance

Author

Cuéllar, Ana Carolina, Jung Kjær, Lene, Baum, Andreas, Stockmarr, Anders, Skovgard, Henrik, Nielsen, Søren Achim, Andersson, Mats Gunnar, Lindström, Anders, Chirico, Jan, Lühken, Renke, Steinke, Sonja, Kiel, Ellen, Gethmann, Jörn, Conraths, Franz J., Larska, Magdalena, Smreczak, Marcin, Orłowska, Anna, Hamnes, Inger, Sviland, Ståle, Hopp, Petter, Brugger, Katharina, Rubel, Franz, Balenghien, Thomas, Garros, Claire, Rakotoarivony, Ignace, Allène, Xavier, Lhoir, Jonathan, Chavernac, David, Delécolle, Jean-Claude, Mathieu, Bruno, Delécolle, Delphine, Setier-Rio, Marie-Laure, Venail, Roger, Scheid, Bethsabée, Chueca, Miguel Ángel Miranda, Barceló, Carlos, Lucientes, Javier, Estrada, Rosa, Mathis, Alexander, Tack, Wesley, and Bødker, René

Published
2018
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10. An update of the Culicoides (Diptera: Ceratopogonidae) checklist for the Balkans

Author

Pudar, Dubravka, Petrić, Dušan, Allène, Xavier, Alten, Bulent, Ayhan, Nazlı, Cvetkovikj, Aleksandar, Garros, Claire, Goletić, Teufik, Gunay, Filiz, Hlavackova, Kristyna, Ćupina, Aleksandra Ignjatović, Kavran, Mihaela, Lestinova, Tereza, Mathieu, Bruno, Mikov, Ognyan, Pajović, Igor, Rakotoarivony, Ignace, Stefanovska, Jovana, Vaselek, Slavica, Zuko, Almedina, and Balenghien, Thomas

Published
2018
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12. Spatial and temporal variation in the abundance of Culicoides biting midges (Diptera: Ceratopogonidae) in nine European countries

Author

Cuéllar, Ana Carolina, Kjær, Lene Jung, Kirkeby, Carsten, Skovgard, Henrik, Nielsen, Søren Achim, Stockmarr, Anders, Andersson, Gunnar, Lindstrom, Anders, Chirico, Jan, Lühken, Renke, Steinke, Sonja, Kiel, Ellen, Gethmann, Jörn, Conraths, Franz J., Larska, Magdalena, Hamnes, Inger, Sviland, Ståle, Hopp, Petter, Brugger, Katharina, Rubel, Franz, Balenghien, Thomas, Garros, Claire, Rakotoarivony, Ignace, Allène, Xavier, Lhoir, Jonathan, Chavernac, David, Delécolle, Jean-Claude, Mathieu, Bruno, Delécolle, Delphine, Setier-Rio, Marie-Laure, Venail, Roger, Scheid, Bethsabée, Chueca, Miguel Ángel Miranda, Barceló, Carlos, Lucientes, Javier, Estrada, Rosa, Mathis, Alexander, Tack, Wesley, and Bødker, Rene

Published
2018
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13. Assessment of vector/host contact: comparison of animal-baited traps and UV-light/suction trap for collecting Culicoides biting midges (Diptera: Ceratopogonidae), vectors of Orbiviruses

Author

Delécolle Jean-Claude, Crochet Didier, Rakotoarivony Ignace, Gardès Laëtitia, Allène Xavier, Lancelot Renaud, Garros Claire, Viennet Elvina, Moulia Catherine, Baldet Thierry, and Balenghien Thomas

Subjects
Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background The emergence and massive spread of bluetongue in Western Europe during 2006-2008 had disastrous consequences for sheep and cattle production and confirmed the ability of Palaearctic Culicoides (Diptera: Ceratopogonidae) to transmit the virus. Some aspects of Culicoides ecology, especially host-seeking and feeding behaviors, remain insufficiently described due to the difficulty of collecting them directly on a bait animal, the most reliable method to evaluate biting rates. Our aim was to compare typical animal-baited traps (drop trap and direct aspiration) to both a new sticky cover trap and a UV-light/suction trap (the most commonly used method to collect Culicoides). Methods/results Collections were made from 1.45 hours before sunset to 1.45 hours after sunset in June/July 2009 at an experimental sheep farm (INRA, Nouzilly, Western France), with 3 replicates of a 4 sites × 4 traps randomized Latin square using one sheep per site. Collected Culicoides individuals were sorted morphologically to species, sex and physiological stages for females. Sibling species were identified using a molecular assay. A total of 534 Culicoides belonging to 17 species was collected. Abundance was maximal in the drop trap (232 females and 4 males from 10 species) whereas the diversity was the highest in the UV-light/suction trap (136 females and 5 males from 15 species). Significant between-trap differences abundance and parity rates were observed. Conclusions Only the direct aspiration collected exclusively host-seeking females, despite a concern that human manipulation may influence estimation of the biting rate. The sticky cover trap assessed accurately the biting rate of abundant species even if it might act as an interception trap. The drop trap collected the highest abundance of Culicoides and may have caught individuals not attracted by sheep but by its structure. Finally, abundances obtained using the UV-light/suction trap did not estimate accurately Culicoides biting rate.

Published
2011
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14. Spatio-temporal genetic variation of the biting midge vector species Culicoides imicola (Ceratopogonidae) Kieffer in France

Author

Jacquet, Stéphanie, primary, Huber, Karine, additional, Guis, Hélène, additional, Setier-Rio, Marie-Laure, additional, Goffredo, Maria, additional, Allène, Xavier, additional, Rakotoarivony, Ignace, additional, Chevillon, Christine, additional, Bouyer, Jérémy, additional, Baldet, Thierry, additional, Balenghien, Thomas, additional, and Garros, Claire, additional

Published
2016
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15. How do species, population and active ingredient influence insecticide susceptibility in Culicoides biting midges (Diptera: Ceratopogonidae) of veterinary importance?

Author

Venail, Roger, primary, Lhoir, Jonathan, additional, Fall, Moussa, additional, del Río, Ricardo, additional, Talavera, Sandra, additional, Labuschagne, Karien, additional, Miranda, Miguel, additional, Pagès, Nonito, additional, Venter, Gert, additional, Rakotoarivony, Ignace, additional, Allène, Xavier, additional, Scheid, Bethsabée, additional, Gardès, Laëtitia, additional, Gimonneau, Geoffrey, additional, Lancelot, Renaud, additional, Garros, Claire, additional, Cêtre-Sossah, Catherine, additional, Balenghien, Thomas, additional, Carpenter, Simon, additional, and Baldet, Thierry, additional

Published
2015
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16. Culicoides (Diptera: Ceratopogonidae) midges, the vectors of African horse sickness virus – a host/vector contact study in the Niayes area of Senegal

Author

Fall, Moussa, primary, Diarra, Maryam, additional, Fall, Assane G, additional, Balenghien, Thomas, additional, Seck, Momar T, additional, Bouyer, Jérémy, additional, Garros, Claire, additional, Gimonneau, Geoffrey, additional, Allène, Xavier, additional, Mall, Iba, additional, Delécolle, Jean-Claude, additional, Rakotoarivony, Ignace, additional, Bakhoum, Mame T, additional, Dusom, Ange M, additional, Ndao, Massouka, additional, Konaté, Lassana, additional, Faye, Ousmane, additional, and Baldet, Thierry, additional

Published
2015
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17. Seasonal dynamics of Culicoides (Diptera: Ceratopogonidae) biting midges, potential vectors of African horse sickness and bluetongue viruses in the Niayes area of Senegal

Author

Diarra, Maryam, primary, Fall, Moussa, additional, Fall, Assane G, additional, Diop, Aliou, additional, Seck, Momar, additional, Garros, Claire, additional, Balenghien, Thomas, additional, Allène, Xavier, additional, Rakotoarivony, Ignace, additional, Lancelot, Renaud, additional, Mall, Iba, additional, Bakhoum, Mame, additional, Dosum, Ange, additional, Ndao, Massouka, additional, Bouyer, Jérémy, additional, and Guis, Hélène, additional

Published
2014
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18. Towards the PCR-based identification of Palaearctic Culicoides biting midges (Diptera: Ceratopogonidae): results from an international ring trial targeting four species of the subgenus Avaritia

Author

Garros, Claire, primary, Balenghien, Thomas, additional, Carpenter, Simon, additional, Delécolle, Jean-Claude, additional, Meiswinkel, Rudy, additional, Pédarrieu, Aurélie, additional, Rakotoarivony, Ignace, additional, Gardès, Laetitia, additional, Golding, Nick, additional, Barber, James, additional, Miranda, Miguel, additional, Borràs, David, additional, Goffredo, Maria, additional, Monaco, Federica, additional, Pagès, Nonito, additional, Sghaier, Soufien, additional, Hammami, Salah, additional, Calvo, Jorge H, additional, Lucientes, Javier, additional, Geysen, Dirk, additional, De Deken, Gill, additional, Sarto i Monteys, Victor, additional, Schwenkenbecher, Jan, additional, Kampen, Helge, additional, Hoffmann, Bernd, additional, Lehmann, Kathrin, additional, Werner, Doreen, additional, Baldet, Thierry, additional, Lancelot, Renaud, additional, and Cêtre-Sossah, Catherine, additional

Published
2014
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19. Assessment of vector/host contact: comparison of animal-baited traps and UV-light/suction trap for collecting Culicoides biting midges (Diptera: Ceratopogonidae), vectors of Orbiviruses

Author

Viennet, Elvina, primary, Garros, Claire, additional, Lancelot, Renaud, additional, Allène, Xavier, additional, Gardès, Laëtitia, additional, Rakotoarivony, Ignace, additional, Crochet, Didier, additional, Delécolle, Jean-Claude, additional, Moulia, Catherine, additional, Baldet, Thierry, additional, and Balenghien, Thomas, additional

Published
2011
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20. Spatial distribution modelling of <italic>Culicoides</italic> (Diptera: Ceratopogonidae) biting midges, potential vectors of African horse sickness and bluetongue viruses in Senegal.

Author

Diarra, Maryam, Fall, Moussa, Fall, Assane Gueye, Diop, Aliou, Lancelot, Renaud, Seck, Momar Talla, Rakotoarivony, Ignace, Allène, Xavier, Bouyer, Jérémy, and Guis, Hélène

Subjects
DIPTERA, CERATOPOGONIDAE, AFRICAN horse sickness, BLUETONGUE virus, REGRESSION analysis
Abstract

Background: In Senegal, the last epidemic of African horse sickness (AHS) occurred in 2007. The western part of the country (the Niayes area) concentrates modern farms with exotic horses of high value and was highly affected during the 2007 outbreak that has started in the area. Several studies were initiated in the Niayes area in order to better characterize Culicoides diversity, ecology and the impact of environmental and climatic data on dynamics of proven and suspected vectors. The aims of this study are to better understand the spatial distribution and diversity of Culicoides in Senegal and to map their abundance throughout the country. Methods: Culicoides data were obtained through a nationwide trapping campaign organized in 2012. Two successive collection nights were carried out in 96 sites in 12 (of 14) regions of Senegal at the end of the rainy season (between September and October) using OVI (Onderstepoort Veterinary Institute) light traps. Three different modeling approaches were compared: the first consists in a spatial interpolation by ordinary kriging of Culicoides abundance data. The two others consist in analyzing the relation between Culicoides abundance and environmental and climatic data to model abundance and investigate the environmental suitability; and were carried out by implementing generalized linear models and random forest models. Results: A total of 1,373,929 specimens of the genus Culicoides belonging to at least 32 different species were collected in 96 sites during the survey. According to the RF (random forest) models which provided better estimates of abundances than Generalized Linear Models (GLM) models, environmental and climatic variables that influence species abundance were identified. Culicoides imicola, C. enderleini and C. miombo were mostly driven by average rainfall and minimum and maximum normalized difference vegetation index. Abundance of C. oxystoma was mostly determined by average rainfall and day temperature. Culicoides bolitinos had a particular trend; the environmental and climatic variables above had a lesser impact on its abundance. RF model prediction maps for the first four species showed high abundance in southern Senegal and in the groundnut basin area, whereas C. bolitinos was present in southern Senegal, but in much lower abundance. Conclusions: Environmental and climatic variables of importance that influence the spatial distribution of species abundance were identified. It is now crucial to evaluate the vector competence of major species and then combine the vector densities with densities of horses to quantify the risk of transmission of AHS virus across the country. [ABSTRACT FROM AUTHOR]

Published
2018
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