Figure 2
From: Characterizing phenotypic diversity in marine populations of the threespine stickleback

Differences between male (M) and female (F) head size, represented by head length (mm), across oceanographic regions. The regions include the Juan de Fuca Strait (JdF), the northern coast of Vancouver Island (North), Strait of Georgia (SoG), and the west coast of Vancouver Island (West). The solid black lines represent the median of each habitat type, while the red triangles represent average head size for each sex (with the average value in black above each point).