Fig. 5
From: Boll weevils in dry bolls: is there a performance disadvantage?
Deformation grids illustrate shape changes along the CV1 and CV2 axes in positive directions. Circles represent the anatomical landmarks and semi-landmarks, and sticks indicate the changes relative to the landmarks and semi-landmarks (A), cluster analysis demonstrates the relationship between the shape of the rostrum among populations of boll weevils, based on the Mahalanobis distances of the rostrum of adult weevils from dry bolls, squares, Caatinga area, and cotton cultivation fields (B)