Schachter-Broide J. auteur aut IRD Gurtler R. E. auteur aut IRD Kitron U. auteur aut IRD Dujardin Jean-Pierre auteur aut IRD text journalArticle eng text/pdf born digital access Wing geometric morphometry of Triatoma infestans (Klug) (Hemiptera: Reduviidae) populations in northwestern Argentina showed that individual collection sites represent the discrete unit where metric differentiation took place. Here we Studied temporal variations in wing size and shape of T. infestans Populations from defined capture sites on three occasions between 2000 and 2003. Bugs collected front domiciles and/or storerooms had significantly larger right-wing centroid size than bugs collected at goat and/or pig corrals by the end of summer 2000 for both sexes. Conversely, male bugs collected front domiciles and/or storerooms had significantly smaller centroid size than bugs collected from pig corrals in spring 2002. The inversion in wing centroid size between seasons was consistent between sexes. Wing shape analysis from the south-central extreme of the Study village showed divergence between collection dates for both sexes. Wing shape divergence was highly significant between male bugs collected by the end of summer 2000 and those collected in spring 2002 and by the end of summer 2003. For females, wing shape divergence was marginally significant between the end Of Summer 2000 and spring 2002, and significant between spring 2002 and the end of summer 2003. Unlike season-related variations in wing centroid size, shape differentiation wits related to the time period elapsed between sample collections and Suggested genetic influences acting on shape. Simultaneous consideration of wing size and shape provided complementary information on the direction and timing of bug dispersal. Morphological studies may allow determining the degree of relatedness of different bug populations and to associate morphological heterogeneity with temporal patterns of reinfestation. specialized geometric morphometry seasonal variations dispersal size Triatoma infestans 052 46 5 994-1000 2009 0022-2585 https://www.documentation.ird.fr/hor/fdi:010048187 0022-2585 [F B010048187] https://www.documentation.ird.fr/hor/fdi:010048187 https://www.documentation.ird.fr/intranet/publi/2009/09/010048187.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2009-10-07 2017-08-23 fdi:010048187 fre