Prudhomme Jorian, Cassan Cécile, Hide M., Toty Céline, Rahola Nil, Vergnes Baptiste, Dujardin Jean-Pierre, Alten B., Sereno Denis, Banuls Anne-Laure. (2016). Ecology and morphological variations in wings of Phlebotomus ariasi (Diptera : Psychodidae) in the region of Roquedur (Gard, France) : a geometric morphometrics approach. Parasites and Vectors, 9, p. art. 578 [13 p.]. ISSN 1756-3305.
Titre du document
Ecology and morphological variations in wings of Phlebotomus ariasi (Diptera : Psychodidae) in the region of Roquedur (Gard, France) : a geometric morphometrics approach
Année de publication
2016
Auteurs
Prudhomme Jorian, Cassan Cécile, Hide M., Toty Céline, Rahola Nil, Vergnes Baptiste, Dujardin Jean-Pierre, Alten B., Sereno Denis, Banuls Anne-Laure
Source
Parasites and Vectors, 2016,
9, p. art. 578 [13 p.] ISSN 1756-3305
Background: Phlebotomus ariasi Tonnoir, 1921, is the predominant sand fly species in the Cevennes region and a proven vector of Leishmania infantum, which is the main pathogen of visceral and canine leishmaniasis in the south of France. Even if this species is widely present in Western Mediterranean countries, its biology and ecology remain poorly known. The main goals of this work are to investigate the phenotypic variation of P. ariasi at a local scale in a region characterized by climatic and environmental fluctuations, and to determine if slope and altitude could affect the sand fly phenotypes. Results: Sand flies were captured along a 14 km-long transect in 2011 from May to October. At the same time, environmental data such as altitude and slope were also collected. Morphological analysis of P. ariasi wings was performed by a geometric morphometrics approach. We found morphological variation among local populations of P. ariasi. Strong shape and size variations were observed in the course of the season (particularly in June and July) for both genders. During June, we highlighted differences in wing phenotypes according to altitude for both sexes and to slope and station for females. Conclusions: The phenotypic variations observed in P. ariasi along the studied transect indicated these populations are subjected to environmental pressures. Nevertheless, it seems that sand flies are more sensitive to extrinsic factors in June and July, suggesting a phenotypic plasticity.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052]
Description Géographique
FRANCE
Localisation
Fonds IRD [F B010068373]
Identifiant IRD
fdi:010068373
