Figures 22-27 - uploaded by Victor Fet
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Biometric scaling of pectinal tooth count (PTC) in buthid scorpions. Figures 22-23: Logarithmic scatter plots of PTC vs. carapace length for 815 species of male buthids (22) and 820 species of female buthids (23). Gray symbols are mid-range PTCs of individual species, vertical error bars the ranges (minimum, maximum). Gray line is linear lest squares regression of log variables, with slope, intercept, Pearson's correlation coefficient (R), P value and sample size indicated in the lower right. Gray elliptical areas on lower left indicate that most very small buthids have below average PTCs. Orange symbols highlight psammophile buthids belonging to 8 genera, orange line is regression fit to psammophiles; fit parameters are indicated in the upper left. Figures 24-25: Logarithmic scatter plots of buthids in Figs. 22 -23 shown with different psammophile taxa highlighted by colored symbols. Figures 26-27: Logarithmic scatter plots of buthids in Figs. 22 -23 shown with two different major clades highlighted by colored symbols and regression lines. Red. 'Buthus' group; Blue: 'Tityus' group. Corresponding fit parameters are indicated in the upper left and lower right.
Contexts in source publication
Context 1
... group that live on soft aeolian sands, the most finely textured of terrestrial surfaces. In contrast, humid, tropical forest microhabitats of many 'Tityus' group scorpions probably have smoother substrates than deserts (e.g., humus, leaf litter, moist logs, foliage, tree trunks, etc.), and this correlates with their lower PTCs. In females (Fig. 27), the 'Buthus' group PTCs were not significantly higher than the average trend, similar to female psammophiles (Fig. 23) which all belong to the 'Buthus' group. However, female 'Tityus' group were similar to males in having lower PTCs. Apparently, the ecomorphotypic sexual dimorphism is not expressed in all phylogenetic groups. This ...
Context 2
... group that live on soft aeolian sands, the most finely textured of terrestrial surfaces. In contrast, humid, tropical forest microhabitats of many 'Tityus' group scorpions probably have smoother substrates than deserts (e.g., humus, leaf litter, moist logs, foliage, tree trunks, etc.), and this correlates with their lower PTCs. In females (Fig. 27), the 'Buthus' group PTCs were not significantly higher than the average trend, similar to female psammophiles (Fig. 23) which all belong to the 'Buthus' group. However, female 'Tityus' group were similar to males in having lower PTCs. Apparently, the ecomorphotypic sexual dimorphism is not expressed in all phylogenetic groups. This ...
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