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Size and shape components of anthropometric differences among the Yanadis
1Indian Statistical Institute, Calcutta.
Annals of Human Biology
|September 1, 1989
Summary
Morphological differences in the Yanadi tribe are primarily influenced by migration and road distances, with shape components showing greater similarity between sexes than size components.
Area of Science:
- Anthropology
- Human biology
- Population genetics
Background:
- The Yanadi tribe in Andhra Pradesh, India, exhibits sociocultural and geographical variations.
- Understanding their morphological diversity is crucial for anthropological studies.
Purpose of the Study:
- To analyze size and shape components of Mahalanobis D2 in the Yanadi population.
- To investigate the correlation between morphological and geographical distances.
Main Methods:
- Computation of Mahalanobis D2 using anthropometric characters.
- Analysis of size and shape components for male, female, and pooled data.
- Correlation analysis (simple and partial) with road, map, and migrational distances.
Main Results:
- Size and shape differences followed similar patterns across sexes, with some exceptions in females.
- Shape components were more similar between males and females than size components, indicating morphological similarity in relative measurements.
- Migrational distance emerged as the strongest factor influencing morphological differences, followed closely by road distance, especially for shape components.
Conclusions:
- Morphological variations in the Yanadi tribe are significantly shaped by migrational and geographical factors.
- Relative body measurements (shape) show higher inter-sexual consistency than absolute body size.
- The study highlights the interplay between migration, geography, and human physical diversity.