FIGURE 3.11 The percentage saturation of available reef habitat within each species’ geographic range increases significantly with median body size among species of gonodactylid and protosquillid stomatopods (r2 = 0.54, F = 47.68, P < 0.001, y = 0.19x − 3.83). The percentage saturation of each species’ range is the proportion of all 5 × 5° latitudinal and longitudinal quadrants containing habitable reef that is occupied by that species.
FIGURE 3.12 Size frequency distributions of maximum body sizes for total species, regional endemics, and nonendemic species of reef stomatopods. Endemics are significantly smaller than nonendemics (t = 6.40, df = 146, P < 0.001; two-sample t test assuming unequal variance). Analysis of median body size for each species gives a similar graphical and statistical result.
et al., 2003a). Stomatopods share the following characteristics with taxa in both marine and terrestrial environments. (i) Body size frequency distributions are usually shifted toward small size classes (May, 1978, 1986, 1988; Rosenzweig, 1995; Gaston and Blackburn, 2000; Roy et al., 2000, 2002). (ii) Species abundances are biased toward few common and many rare species (Hubbell, 2001). (iii) Local abundance increases with range size (Gaston, 1994). (iv) Geographic range size increases with body size