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<datestamp>2018-01-11</datestamp>
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<title lang=en>Amazonian Triatomine Biodiversity and the Transmission of Chagas Disease in French Guiana: In Medio Stat Sanitas</title>
<creator>Péneau, Julie</creator>
<creator>Nguyen, Anne</creator>
<creator>Flores-Ferrer, Alheli</creator>
<creator>Blanchet, Denis</creator>
<creator>Gourbière, Sébastien</creator>
<contributor>Laboratoire Hospitalo-universitaire de Parasitologie et Mycologie Médicale ; Université des Antilles et de la Guyane (UAG) - Centre hospitalier Andrée Rosemon (Cayenne)</contributor>
<contributor>Institut de Modélisation et d'Analyses en géo-environnement et santé - Espace Développement (IMAGES-Espace DEV) ; Université de Perpignan Via Domitia (UPVD) - UMR 228 Espace-Dev, Espace pour le développement ; Institut de Recherche pour le Développement (IRD) - Université de Perpignan Via Domitia (UPVD) - Université Nice Sophia Antipolis (UNS) ; Université Côte d'Azur (UCA) - Université Côte d'Azur (UCA) - Université d'Avignon et des Pays de Vaucluse (UAPV) - Université de la Réunion (UR) - Université de Montpellier (UM) - Université de Guyane (UG) - Université des Antilles (Pôle Martinique) ; Université des Antilles (UA) - Université des Antilles (UA) - Université des Antilles (Pôle Guadeloupe) ; Université des Antilles (UA) - Institut de Recherche pour le Développement (IRD) - Université de Perpignan Via Domitia (UPVD) - Université Nice Sophia Antipolis (UNS) ; Université Côte d'Azur (UCA) - Université Côte d'Azur (UCA) - Université d'Avignon et des Pays de Vaucluse (UAPV) - Université de la Réunion (UR) - Université de Montpellier (UM) - Université de Guyane (UG) - Université des Antilles (Pôle Martinique) ; Université des Antilles (UA) - Université des Antilles (UA) - Université des Antilles (Pôle Guadeloupe) ; Université des Antilles (UA)</contributor>
<description>International audience</description>
<source>ISSN: 1935-2727</source>
<source>EISSN: 1935-2735</source>
<source>PLoS Neglected Tropical Diseases</source>
<publisher>Public Library of Science</publisher>
<identifier>hal-01298091</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01298091</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01298091/document</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01298091/file/journal.pntd.0004427.PDF</identifier>
<source>https://hal-univ-perp.archives-ouvertes.fr/hal-01298091</source>
<source>PLoS Neglected Tropical Diseases, Public Library of Science, 2016, 〈10.1371/journal.pntd.0004427〉</source>
<identifier>DOI : 10.1371/journal.pntd.0004427</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pntd.0004427</relation>
<language>en</language>
<subject lang=en>Biodiversity</subject>
<subject lang=en>Trypanosoma cruzi</subject>
<subject lang=en>Vector-borne diseases</subject>
<subject lang=en>Chagas disease</subject>
<subject lang=en>Species diversity</subject>
<subject lang=en>Disease vectors</subject>
<subject lang=en>Geographic distribution</subject>
<subject lang=en>Seasons</subject>
<subject>[SDV.EE] Life Sciences [q-bio]/Ecology, environment</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The effects of biodiversity on the transmission of infectious diseases now stand as a cornerstone of many public health policies. The upper Amazonia and Guyana shield are hot-spots of biodiversity that offer genuine opportunities to explore the relationship between the risk of transmission of Chagas disease and the diversity of its triatomine vectors. Over 730 triato-mines were light-trapped in four geomorphological landscapes shaping French-Guiana, and we determined their taxonomic status and infection by Trypanosoma cruzi. We used a model selection approach to unravel the spatial and temporal variations in species abundance , diversity and infection. The vector community in French-Guiana is typically made of one key species (Panstrongylus geniculatus) that is more abundant than three secondary species combined (Rhodnius pictipes, Panstrongylus lignarius and Eratyrus mucronatus), and four other species that complete the assemblage. Although the overall abundance of adult triatomines does not vary across French-Guiana, their diversity increases along a coastal-inland gradient. These variations unravelled a non-monotonic relationship between vector biodiversity and the risk of transmission of Chagas disease, so that intermediate biodiversity levels are associated with the lowest risks. We also observed biannual variations in triatomine abundance, representing the first report of a biannual pattern in the risk of Cha-gas disease transmission. Those variations were highly and negatively correlated with the average monthly rainfall. We discuss the implications of these patterns for the transmission of T. cruzi by assemblages of triatomine species, and for the dual challenge of controlling Amazonian vector communities that are made of both highly diverse and mostly intrusive species.</description>
<rights>http://creativecommons.org/licenses/by/</rights>
<date>2016</date>
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