Climatic and Altitudinal Influences on Variation in Macaca Limb Morphology

Figure 2

First and second PC factor scores of log-size-and-shape variables in males. The following labels designate individuals in each species. Assamese macaques: ▪, crab-eating macaques: ▴, Japanese macaques: ▾, rhesus macaques: ◆, pig-tailed macaques: grey ⚫, and Tibetan macaques: pink ⚫. The first PC axis accounts for most of the variation within the sample and represents overall size. The second PC axis, while depicting a much smaller amount of variation, illustrates variation in relative limb lengths and joint diameters.