16 results on '"Bitome-Essono, Paul-Yannick"'
Search Results
2. Flying Syringes for Emerging Enzootic Virus Screening: Proof of Concept for the Development of Noninvasive Xenosurveillance Tools Based on Tsetse Flies
- Author
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Valente, Adeline, primary, Jiolle, Davy, additional, Ravel, Sophie, additional, Porciani, Angélique, additional, Vial, Laurence, additional, Michaud, Vincent, additional, Kwiatek, Olivier, additional, Pedarrieu, Aurélie, additional, Misse, Dorothée, additional, Ferraris, Pauline, additional, Bretagnolle, François, additional, Bitome-Essono, Paul-Yannick, additional, Makanga, Boris Kevin, additional, Rougeron, Virginie, additional, Prugnolle, Franck, additional, and Paupy, Christophe, additional
- Published
- 2023
- Full Text
- View/download PDF
3. Local People Enhance Our Understanding of Afrotropical Frugivory Networks
- Author
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Durand-Bessart, Clementine, primary, Akomo-Okoue, Etienne François, additional, Ebang Ella, Ghislain Wilfried, additional, Porcher, Vincent, additional, Bitome Essono, Paul Yannick, additional, Bretagnolle, François, additional, and Fontaine, Colin, additional
- Published
- 2023
- Full Text
- View/download PDF
4. Using haematophagous fly blood meals to study the diversity of blood‐borne pathogens infecting wild mammals
- Author
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Mwakasungula, Solomon, primary, Rougeron, Virginie, additional, Arnathau, Céline, additional, Boundenga, Larson, additional, Miguel, Eve, additional, Boissière, Anne, additional, Jiolle, Davy, additional, Durand, Patrick, additional, Msigwa, Alphonce, additional, Mswata, Sarah, additional, Olotu, Ally, additional, Sterkers, Yvon, additional, Roche, Benjamin, additional, Killeen, Gerard, additional, Cerqueira, Frédérique, additional, Bitome‐Essono, Paul Yannick, additional, Bretagnolle, François, additional, Masanja, Honorati, additional, Paupy, Christophe, additional, Sumaye, Robert, additional, and Prugnolle, Franck, additional
- Published
- 2022
- Full Text
- View/download PDF
5. Using haematophagous fly blood meals to study the diversity of blood-borne pathogens infecting wild mammals
- Author
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Mwakasungula, Solomon, Rougeron, Virginie, Arnathau, Céline, Boundenga, Larson, Miguel, Eve, Boissière, Manuel, Jiolle, Davy, Durand, Patrick, Msigwa, Alphonce, Mswata, Sarah, Olotu, Ally, Sterkers, Yvon, Roche, Benjamin, Killeen, Gerard, Cerqueira, Frédérique, Bitome-Essono, Paul Yannick, Bretagnolle, François, Masanja, Honorati, Paupy, Christophe, Sumaye, Robert, Prugnolle, Franck, Mwakasungula, Solomon, Rougeron, Virginie, Arnathau, Céline, Boundenga, Larson, Miguel, Eve, Boissière, Manuel, Jiolle, Davy, Durand, Patrick, Msigwa, Alphonce, Mswata, Sarah, Olotu, Ally, Sterkers, Yvon, Roche, Benjamin, Killeen, Gerard, Cerqueira, Frédérique, Bitome-Essono, Paul Yannick, Bretagnolle, François, Masanja, Honorati, Paupy, Christophe, Sumaye, Robert, and Prugnolle, Franck
- Abstract
Many emerging infectious diseases originate from wild animals, so there is a profound need for surveillance and monitoring of their pathogens. However, the practical difficulty of sample acquisition from wild animals tends to limit the feasibility and effectiveness of such surveys. Xenosurveillance, using blood-feeding invertebrates to obtain tissue samples from wild animals and then detect their pathogens, is a promising method to do so. Here, we describe the use of tsetse fly blood meals to determine (directly through molecular diagnostic and indirectly through serology), the diversity of circulating blood-borne pathogens (including bacteria, viruses and protozoa) in a natural mammalian community of Tanzania. Molecular analyses of captured tsetse flies (182 pools of flies totalizing 1728 flies) revealed that the blood meals obtained came from 18 different vertebrate species including 16 non-human mammals, representing approximately 25% of the large mammal species present in the study area. Molecular diagnostic demonstrated the presence of different protozoa parasites and bacteria of medical and/or veterinary interest. None of the six virus species searched for by molecular methods were detected but an ELISA test detected antibodies against African swine fever virus among warthogs, indicating that the virus had been circulating in the area. Sampling of blood-feeding insects represents an efficient and practical approach to tracking a diversity of pathogens from multiple mammalian species, directly through molecular diagnostic or indirectly through serology, which could readily expand and enhance our understanding of the ecology and evolution of infectious agents and their interactions with their hosts in wild animal communities.
- Published
- 2022
6. High level of intrinsic phenotypic antimicrobial resistance in enterobacteria from terrestrial wildlife in Gabonese national parks
- Author
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Mbehang Nguema, Pierre Philippe, primary, Onanga, Richard, additional, Ndong Atome, Guy Roger, additional, Tewa, Jean Jules, additional, Mabika Mabika, Arsène, additional, Muandze Nzambe, Jean Ulrich, additional, Obague Mbeang, Jean Constant, additional, Bitome Essono, Paul Yannick, additional, Bretagnolle, François, additional, and Godreuil, Sylvain, additional
- Published
- 2021
- Full Text
- View/download PDF
7. Distribution and abundance of hematophagous flies (Glossinidae, Stomoxys, and Tabanidae) in two national parks of Gabon
- Author
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Bitome Essono Paul Yannick, Dechaume-Moncharmont François-Xavier, Mavoungou Jacques, Obiang Mba Régis, Duvallet Gérard, and Bretagnolle François
- Subjects
Hematophagous flies ,Distribution ,Climatic seasons ,National Parks ,Gabon ,Infectious and parasitic diseases ,RC109-216 - Abstract
In order to minimize risks of pathogen transmission with the development of ecotourism in Gabon, a seasonal inventory has been performed in five contrasted biotopes in Ivindo (INP) and Moukalaba-Doudou (MDNP) National Parks. A total of 10,033 hematophagous flies were captured. The Glossinidae, with six different species identified, was the most abundant group and constitutes about 60% of the captured flies compared to the Stomoxys (6 species also identified) and Tabanidae with 28% and 12%, respectively. The Glossinidae showed a higher rate of capture in primary forest and in research camps. In INP, the Stomoxys showed a higher rate of capture in secondary forest and at village borders, whereas in MDNP the Stomoxys were captured more in the savannah area. Thus, each fly group seemed to reach maximum abundance in different habitats. The Glossinidae were more abundant in primary forest and near research camps while Stomoxys were more abundant in secondary forest and savannah. The Tabanidae did not show a clear habitat preference.
- Published
- 2015
- Full Text
- View/download PDF
8. Identification, ecology and use blood meals from hematophagous Diptera (Glossinidae, Stomoxys and Tabanidae) for noninvasive sampling of wildlife in four national parks of Gabon
- Author
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Bitome Essono , Paul Yannick, Biogéosciences [Dijon] ( BGS ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Université de Bourgogne, and François Bretagnolle
- Subjects
[ SDE.BE ] Environmental Sciences/Biodiversity and Ecology ,Parc nationaux ,Human activity ,Hematophagous flies ,Climatic seasons ,Conservation ,Wildlife ,Repas sanguins ,Faune sauvage ,Pathogen screening ,Saisons climatiques ,[ SDV.EE.SANT ] Life Sciences [q-bio]/Ecology, environment/Health ,Non-invasive sampling ,Blood meals ,[ SDV.MHEP ] Life Sciences [q-bio]/Human health and pathology ,Éco-distribution ,Échantillonnage non-invasif ,National parks ,Gabon ,Activités humaines ,Mouches hématophages ,Criblage de pathogènes - Abstract
The contact between human and wild fauna has considerably increased during these last decades due to the increase of human population size but also to conservation policies. As a consequence, the number of zoonotic diseases soared with a mean of six new infectious diseases per year, 75% of whom being vectorially transmitted. The way to avoid the human contamination by these emergent diseases is based on the efficient vector control resulting from a deep knowledge of the ecology and the feeding behavior of the different vector species. During our work, we have identified and characterized the ecology of 6 tsetse species (Glossina palpalis palpalis, G. fuscipes fuscipes, G. fusca congolense, G. pallicera newsteadi, G. caliginea and G. tabaniformis) that live in forests and 6 stomoxe species (Stomoxys calcitrans, S. inornatus, S. niger niger, S. niger bilineatus, S. omega omega and S. transvittatus) that live in and around (anthropized places) conservation areas. We have also identified 6 tabanid species (Ancala sp., Atylotus sp., Chrysops sp., Haematopota sp., Tabanus par and T. taeniola). The feeding ecology of the tsetse species have been studied through the determination of host extracted from blood meals in the insect caught with molecular techniques. These hematophagous insects had a diversified diet that was constituted of diverse mammal species but also reptiles and birds. The food intake results mostly from wild fauna (86%) and more rarely from humans (14%). However, in anthropised habitats (villages and research’s camps within the parks), the blood intakes from human origin were important, in particular in the villages (100%), suggesting that without wild fauna the flies shift on human host. In the last part of our work, we tried to identify pathogens in the blood samples extracted from the tsetse species in order to test whether these species could be used as living sampling syringe of the wild fauna. This new proposed non-invasive sampling techniques allowed to detect the DNA of various infectious agents (plasmodiums and trypanosomes), but failed to detect the RNA of viruses (arbovirus) suggesting that this approach could be useful but need to be improved.; Avec la mise en place des politiques de conservation des espèces sauvages, l'extension de l'urbanisation et l'accroissement des populations humaines, le contact homme-faune a considérablement augmenté au cours de ces dernières décennies. Par conséquent, le nombre de maladies d'origines zoonotiques a explosé avec six apparitions d'agents infectieux par an, dont 75% sont susceptibles d’être transmises par un vecteur. La plupart de ces maladies n'ayant pas encore de vaccins, les principales méthodes d'évitement sont basées sur les stratégies de lutte anti-vectorielle adaptées à l'écologie et au comportement alimentaire des vecteurs. Au Gabon, particulièrement dans les parcs nationaux, nous avons identifié six espèces de glossines (Glossina palpalis palpalis, G. fuscipes fuscipes, G. fusca congolense, G. pallicera newsteadi, G. caliginea et G tabaniformis) vivant principalement en milieux forestiers, six espèces de stomoxes (Stomoxys calcitrans, S. inornatus, S. niger niger, S. niger bilineatus, S. omega omega et S. transvittatus) inféodées aux milieux ouverts types forêt secondaire, savane et villages. Nous avons également identifié six espèces de tabanides (Ancala sp., Atylotus sp., Chrysops sp., Haematopota sp., Tabanus par et T. taeniola), mais leur distribution n'était pas claire dans les milieux prospectés. Par ailleurs, nous constatons que ces mouches hématophages ont un régime alimentaire très diversifié, comprenant les mammifères terrestres et aquatiques, les reptiles et les oiseaux. Elles se nourrissent à 86% sur la faune, contre seulement 14% sur l'homme. Cependant, dans les milieux anthropisés les repas sanguins d'origine humaine sont très importants, notamment dans les villages (100%) et autour des camps de recherche implantés dans les parcs (24%). Ainsi en l'absence de faune dans le milieu, ces mouches hématophages se nourrissent sur l'homme. Comme 75% des maladies émergentes chez l'homme proviennent de la faune sauvage et que près de ¾ d'entre elles circulent via le sang, elles sont donc susceptibles d’être détectées dans les repas sanguins de mouches hématophages. Cette technique d'échantillonnage non-invasif de la faune sauvage semble être un bon moyen d'identifier les agents infectieux à ADN (plasmodiums et trypanosomes), mais reste encore imprécise pour les agents infectieux à ARN (arbovirus).
- Published
- 2015
9. Tracking zoonotic pathogens using blood-sucking flies as 'flying syringes'
- Author
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Bitome-Essono, Paul-Yannick, primary, Ollomo, Benjamin, additional, Arnathau, Céline, additional, Durand, Patrick, additional, Mokoudoum, Nancy Diamella, additional, Yacka-Mouele, Lauriane, additional, Okouga, Alain-Prince, additional, Boundenga, Larson, additional, Mve-Ondo, Bertrand, additional, Obame-Nkoghe, Judicaël, additional, Mbehang-Nguema, Philippe, additional, Njiokou, Flobert, additional, Makanga, Boris, additional, Wattier, Rémi, additional, Ayala, Diego, additional, Ayala, Francisco J, additional, Renaud, Francois, additional, Rougeron, Virginie, additional, Bretagnolle, Francois, additional, Prugnolle, Franck, additional, and Paupy, Christophe, additional
- Published
- 2017
- Full Text
- View/download PDF
10. Author response: Tracking zoonotic pathogens using blood-sucking flies as 'flying syringes'
- Author
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Bitome-Essono, Paul-Yannick, primary, Ollomo, Benjamin, additional, Arnathau, Céline, additional, Durand, Patrick, additional, Mokoudoum, Nancy Diamella, additional, Yacka-Mouele, Lauriane, additional, Okouga, Alain-Prince, additional, Boundenga, Larson, additional, Mve-Ondo, Bertrand, additional, Obame-Nkoghe, Judicaël, additional, Mbehang-Nguema, Philippe, additional, Njiokou, Flobert, additional, Makanga, Boris, additional, Wattier, Rémi, additional, Ayala, Diego, additional, Ayala, Francisco J, additional, Renaud, Francois, additional, Rougeron, Virginie, additional, Bretagnolle, Francois, additional, Prugnolle, Franck, additional, and Paupy, Christophe, additional
- Published
- 2017
- Full Text
- View/download PDF
11. Identification, ecology and use blood meals from hematophagous Diptera (Glossinidae, Stomoxys and Tabanidae) for noninvasive sampling of wildlife in four national parks of Gabon
- Author
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Bitome Essono, Paul Yannick and STAR, ABES
- Subjects
Parc nationaux ,[SDV.MHEP] Life Sciences [q-bio]/Human health and pathology ,Hematophagous flies ,Human activity ,Climatic seasons ,Conservation ,Wildlife ,Repas sanguins ,Faune sauvage ,Pathogen screening ,Saisons climatiques ,[SDE.BE] Environmental Sciences/Biodiversity and Ecology ,Blood meals ,Non-invasive sampling ,Éco-distribution ,Échantillonnage non-invasif ,[SDV.EE.SANT] Life Sciences [q-bio]/Ecology, environment/Health ,National parks ,Gabon ,Activités humaines ,Mouches hématophages ,Criblage de pathogènes - Abstract
The contact between human and wild fauna has considerably increased during these last decades due to the increase of human population size but also to conservation policies. As a consequence, the number of zoonotic diseases soared with a mean of six new infectious diseases per year, 75% of whom being vectorially transmitted. The way to avoid the human contamination by these emergent diseases is based on the efficient vector control resulting from a deep knowledge of the ecology and the feeding behavior of the different vector species. During our work, we have identified and characterized the ecology of 6 tsetse species (Glossina palpalis palpalis, G. fuscipes fuscipes, G. fusca congolense, G. pallicera newsteadi, G. caliginea and G. tabaniformis) that live in forests and 6 stomoxe species (Stomoxys calcitrans, S. inornatus, S. niger niger, S. niger bilineatus, S. omega omega and S. transvittatus) that live in and around (anthropized places) conservation areas. We have also identified 6 tabanid species (Ancala sp., Atylotus sp., Chrysops sp., Haematopota sp., Tabanus par and T. taeniola). The feeding ecology of the tsetse species have been studied through the determination of host extracted from blood meals in the insect caught with molecular techniques. These hematophagous insects had a diversified diet that was constituted of diverse mammal species but also reptiles and birds. The food intake results mostly from wild fauna (86%) and more rarely from humans (14%). However, in anthropised habitats (villages and research’s camps within the parks), the blood intakes from human origin were important, in particular in the villages (100%), suggesting that without wild fauna the flies shift on human host. In the last part of our work, we tried to identify pathogens in the blood samples extracted from the tsetse species in order to test whether these species could be used as living sampling syringe of the wild fauna. This new proposed non-invasive sampling techniques allowed to detect the DNA of various infectious agents (plasmodiums and trypanosomes), but failed to detect the RNA of viruses (arbovirus) suggesting that this approach could be useful but need to be improved., Avec la mise en place des politiques de conservation des espèces sauvages, l'extension de l'urbanisation et l'accroissement des populations humaines, le contact homme-faune a considérablement augmenté au cours de ces dernières décennies. Par conséquent, le nombre de maladies d'origines zoonotiques a explosé avec six apparitions d'agents infectieux par an, dont 75% sont susceptibles d’être transmises par un vecteur. La plupart de ces maladies n'ayant pas encore de vaccins, les principales méthodes d'évitement sont basées sur les stratégies de lutte anti-vectorielle adaptées à l'écologie et au comportement alimentaire des vecteurs. Au Gabon, particulièrement dans les parcs nationaux, nous avons identifié six espèces de glossines (Glossina palpalis palpalis, G. fuscipes fuscipes, G. fusca congolense, G. pallicera newsteadi, G. caliginea et G tabaniformis) vivant principalement en milieux forestiers, six espèces de stomoxes (Stomoxys calcitrans, S. inornatus, S. niger niger, S. niger bilineatus, S. omega omega et S. transvittatus) inféodées aux milieux ouverts types forêt secondaire, savane et villages. Nous avons également identifié six espèces de tabanides (Ancala sp., Atylotus sp., Chrysops sp., Haematopota sp., Tabanus par et T. taeniola), mais leur distribution n'était pas claire dans les milieux prospectés. Par ailleurs, nous constatons que ces mouches hématophages ont un régime alimentaire très diversifié, comprenant les mammifères terrestres et aquatiques, les reptiles et les oiseaux. Elles se nourrissent à 86% sur la faune, contre seulement 14% sur l'homme. Cependant, dans les milieux anthropisés les repas sanguins d'origine humaine sont très importants, notamment dans les villages (100%) et autour des camps de recherche implantés dans les parcs (24%). Ainsi en l'absence de faune dans le milieu, ces mouches hématophages se nourrissent sur l'homme. Comme 75% des maladies émergentes chez l'homme proviennent de la faune sauvage et que près de ¾ d'entre elles circulent via le sang, elles sont donc susceptibles d’être détectées dans les repas sanguins de mouches hématophages. Cette technique d'échantillonnage non-invasif de la faune sauvage semble être un bon moyen d'identifier les agents infectieux à ADN (plasmodiums et trypanosomes), mais reste encore imprécise pour les agents infectieux à ARN (arbovirus).
- Published
- 2015
12. Distribution et abondance des mouches piqueuses (Glossinidae, Stomoxys et Tabanidae) dans deux parcs nationaux du Gabon
- Author
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Bitome Essono Paul Yannick, Dechaume-Moncharmont François-Xavier, Mavoungou Jacques, Obiang Mba Régis, Duvallet Gérard, Bretagnolle François, Biogéosciences [UMR 6282] [Dijon] (BGS), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche en Écologie Tropicale (IRET-CENAREST), Centre de Recherche Médicale de Lambaréné, Albert Schweitzer, Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UM3)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Financial support for this work provided by the ‘‘Conseil Régional de Bourgogne’’, the ‘‘Service de Coopération et d’Action Culturelle’’ (SCAC) of the Embassy of France in Gabon, the ‘‘Institut Français’’ (IF) of Libreville, and the ‘‘Agence Universitaire de la Francophonie’’ (AUF)., Centre national de la recherche scientifique et technologique (CENAREST), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Université Paul-Valéry - Montpellier 3 (UPVM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut de Recherche pour le Développement (IRD [France-Sud]), Biogéosciences [Dijon] ( BGS ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Institut de Recherche en Écologie Tropicale ( IRET-CENAREST ), Centre d’Ecologie Fonctionnelle et Evolutive ( CEFE ), Université Paul-Valéry - Montpellier 3 ( UM3 ) -Centre international d'études supérieures en sciences agronomiques ( Montpellier SupAgro ) -École pratique des hautes études ( EPHE ) -Institut national de la recherche agronomique [Montpellier] ( INRA Montpellier ) -Université de Montpellier ( UM ) -Centre National de la Recherche Scientifique ( CNRS ) -Institut de Recherche pour le Développement ( IRD [France-Sud] ) -Institut national d’études supérieures agronomiques de Montpellier ( Montpellier SupAgro ), Biogéosciences [UMR 6282] (BGS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)
- Subjects
Tsetse Flies ,Parks, Recreational ,Population Dynamics ,Climatic seasons ,[SDV.BID]Life Sciences [q-bio]/Biodiversity ,Forests ,Distribution ,lcsh:Infectious and parasitic diseases ,Species Specificity ,Animals ,lcsh:RC109-216 ,Gabon ,Ecosystem ,National Parks ,[ SDV.BID ] Life Sciences [q-bio]/Biodiversity ,[ SDE.BE ] Environmental Sciences/Biodiversity and Ecology ,Hematophagous flies ,Diptera ,Muscidae ,Humidity ,Grassland ,Glossinidae ,Insect Vectors ,Trypanosomiasis, African ,Virus Diseases ,Seasons ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,Animal Distribution ,Research Article - Abstract
11 pages; International audience; In order to minimize risks of pathogen transmission with the development of ecotourism in Gabon, a seasonal inventory has been performed in five contrasted biotopes in Ivindo (INP) and Moukalaba-Doudou (MDNP) National Parks. A total of 10,033 hematophagous flies were captured. The Glossinidae, with six different species identified, was the most abundant group and constitutes about 60% of the captured flies compared to the Stomoxys (6 species also identified) and Tabanidae with 28% and 12%, respectively. The Glossinidae showed a higher rate of capture in primary forest and in research camps. In INP, the Stomoxys showed a higher rate of capture in secondary forest and at village borders, whereas in MDNP the Stomoxys were captured more in the savannah area. Thus, each fly group seemed to reach maximum abundance in different habitats. The Glossinidae were more abundant in primary forest and near research camps while Stomoxys were more abundant in secondary forest and savannah. The Tabanidae did not show a clear habitat preference.; Afin de minimiser les risques de transmission de pathogènes avec le développement de l’écotourisme au Gabon, un inventaire saisonnier a été mené dans cinq biotopes caractéristiques des parcs nationaux de l’Ivindo (PNI) et de Moukalaba-Doudou (PNMD). Au total, 10 033 mouches hématophages ont été capturées. Les Glossinidae, avec 6 espèces différentes identifiées, constituaient le groupe le plus abondant avec 60 % de mouches capturées, suivi des Stomoxys (6 espèces différentes identifiées) et des Tabanidae avec respectivement 28 % et 12 %. Les glossines ont été majoritairement capturées en forêt primaire et au niveau des camps de recherche. Au PNI, les stomoxes ont été majoritairement capturés en forêt secondaire et en périphérie des villages. Alors qu’au PNMD, ces stomoxes ont été majoritairement capturés au niveau des savanes. Ainsi, chaque groupe de mouches semble être inféodé à un type de milieu. Les glossines préfèrent la forêt primaire et camps de recherche, alors que les stomoxes préfèrent la forêt secondaire et la savane. Les tabanides ne dégagent aucune préférence particulière pour un type de milieu.
- Published
- 2015
13. Distribution and abundance of hematophagous flies (Glossinidae,Stomoxys, and Tabanidae) in two national parks of Gabon
- Author
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Bitome Essono, Paul Yannick, primary, Dechaume-Moncharmont, François-Xavier, additional, Mavoungou, Jacques, additional, Obiang Mba, Régis, additional, Duvallet, Gérard, additional, and Bretagnolle, François, additional
- Published
- 2015
- Full Text
- View/download PDF
14. Multi-Infections of Feminizing Wolbachia Strains in Natural Populations of the Terrestrial Isopod Armadillidium Vulgare
- Author
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Valette, Victorien, primary, Bitome Essono, Paul-Yannick, additional, Le Clec’h, Winka, additional, Johnson, Monique, additional, Bech, Nicolas, additional, and Grandjean, Frédéric, additional
- Published
- 2013
- Full Text
- View/download PDF
15. Multi-Infections of Feminizing Wolbachia Strains in Natural Populations of the Terrestrial Isopod Armadillidium Vulgare.
- Author
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Valette, Victorien, Bitome Essono, Paul-Yannick, Le Clec’h, Winka, Johnson, Monique, Bech, Nicolas, and Grandjean, Frédéric
- Subjects
- *
WOLBACHIA , *ARMADILLIDIUM vulgare , *POLYMERASE chain reaction , *NUCLEOTIDE sequence , *BACTERIAL growth , *GENE amplification - Abstract
Maternally inherited Wolbachia (α-Proteobacteria) are widespread parasitic reproductive manipulators. A growing number of studies have described the presence of different Wolbachia strains within a same host. To date, no naturally occurring multiple infections have been recorded in terrestrial isopods. This is true for Armadillidium vulgare which is known to harbor non simultaneously three Wolbachia strains. Traditionally, such Wolbachia are detected by PCR amplification of the wsp gene and strains are characterized by sequencing. The presence of nucleotide deletions or insertions within the wsp gene, among these three different strains, provides the opportunity to test a novel genotyping method. Herein, we designed a new primer pair able to amplify products whose lengths are specific to each Wolbachia strain so as to detect the presence of multi-infections in A. vulgare. Experimental injections of Wolbachia strains in Wolbachia-free females were used to validate the methodology. We re-investigated, using this novel method, the infection status of 40 females sampled in 2003 and previously described as mono-infected based on the classical sequencing method. Among these females, 29 were identified as bi-infected. It is the first time that naturally occuring multiple infections of Wolbachia are detected within an individual A. vulgare host. Additionally, we resampled 6 of these populations in 2010 to check the infection status of females. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
16. Multi-Infections of Feminizing Wolbachia Strains in Natural Populations of the Terrestrial Isopod Armadillidium Vulgare.
- Author
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Valette, Victorien, Bitome Essono, Paul-Yannick, Le Clec’h, Winka, Johnson, Monique, Bech, Nicolas, and Grandjean, Frédéric
- Subjects
WOLBACHIA ,ARMADILLIDIUM vulgare ,POLYMERASE chain reaction ,NUCLEOTIDE sequence ,BACTERIAL growth ,GENE amplification - Abstract
Maternally inherited Wolbachia (α-Proteobacteria) are widespread parasitic reproductive manipulators. A growing number of studies have described the presence of different Wolbachia strains within a same host. To date, no naturally occurring multiple infections have been recorded in terrestrial isopods. This is true for Armadillidium vulgare which is known to harbor non simultaneously three Wolbachia strains. Traditionally, such Wolbachia are detected by PCR amplification of the wsp gene and strains are characterized by sequencing. The presence of nucleotide deletions or insertions within the wsp gene, among these three different strains, provides the opportunity to test a novel genotyping method. Herein, we designed a new primer pair able to amplify products whose lengths are specific to each Wolbachia strain so as to detect the presence of multi-infections in A. vulgare. Experimental injections of Wolbachia strains in Wolbachia-free females were used to validate the methodology. We re-investigated, using this novel method, the infection status of 40 females sampled in 2003 and previously described as mono-infected based on the classical sequencing method. Among these females, 29 were identified as bi-infected. It is the first time that naturally occuring multiple infections of Wolbachia are detected within an individual A. vulgare host. Additionally, we resampled 6 of these populations in 2010 to check the infection status of females. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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