Seasonal variation in wing size and shape between geographic populations of the malaria vector, Anopheles coluzzii in Burkina Faso (West Africa)

Wing shape variation between geographical populations of the African malaria vector, Anopheles coluzzii reared under contrasted environmental conditions. Projection on the first plane of the principal component analysis (PCA) of 489 individual wings from five An.coluzzii populations reared under environmental conditions reflecting the rainy season (RS, white) and the dry season (ODS, grey) in northern Burkina Faso (West Africa). Only the centroids of each group are plotted for ease of interpretation. The direction and magnitude of wing shape variation between RS and ODS are represented by arrows. Both positive and negative mean shape changes along the two first component axes (PC1, PC2) are represented by sketches positioned along each axis. Circles represent temporary mosquito populations, squares represent permanent populations, and triangles represent the control laboratory population.