Figure 2.8a Average litter size for ground dwelling sciurids mapped using MacClade 4.05 on a composite phylogeny
derived from several sources (Steppan et al. 1999; Harrison et al. 2003; Herron et al. 2004). Values for litter size were taken from Blumstein and
Armitage (1998) and represent a conversion of continuous characters to discrete characters (low shown in black and high in gray).
Figure 2.8b Social complexity for ground dwelling sciurids mapped using MacClade 4.05 on a composite phylogeny derived from several
sources (Steppan et al. 1999; Harrison et al. 2003; Herron et al. 2004). Values for social complexity were taken from Blumstein and Armitage
(1998) and represent a conversion of continuous characters to discrete character. High social complexity is stippled, intermediate complexity is
gray, and low complexity is black.