Provider: Moravian Museum, Brno, Czech Republic

TY  - JOUR
JO  - Anthropologie (Brno)
TI  - Ontogenetic Scaling and Size Correction in the Comparatyive Study of Primate Adaptations
AU  - Shea BT
Y1  - 1995
VL  - 33
IS  - 1-2
PB  - Moravian Museum, Brno, Czech Republic
SN  - 0323-1119
SP  - 1
EP  - 16
KW  - Allometry
KW  - Ontogenetic scaling
KW  - Dissociation
KW  - Adaptation
KW  - Comparative studies
N2  - 
N2  - The identification and removal of allometric effects is generally deemed desirable in the comparative analysis of form and adaptation. Debates continue regarding the most appropriate and effective allometric "criteria of subtraction" in such analyses. Here I argue that utilization of onto genetic scaling (Gould, 1975; Shea, 1981) within an explicitly phylogenetic context provides a powerful and biologically-justifiable criterion for identifying both (1) the shared, correlated effects of size change on morphological features and proportions; and (2) the derived dissociations of ancestral allometries which indicate novel shape transformation requiring additional explanation. These novel shape divergences may result from biomechanical scaling, or they may be associated with non-allometric, extrinsic factors such as ecological shifts, etc. Thus, a hierarchical procedure beginning with analysis ofontogenetic allometries in groups of related species can be very useful in comparative studies ofadaptation. I review examples of both intersexual and interspecific comparisons in primate evolution where ontogenetic scaling has been used effectively as a criterion ofsubtraction to identify derived proportions resulting from dissociations of shared patterns of allometric growth covariance. This approach emphasizes the necessity of integrating studies of ontogeny with traditional interspecific adult analyses in the investigation of adaptation, phylogeny reconstruction and the role of historical factors or constraints in evolutionary transformations.
ER  -