This study assesses the possibility that variation in food availability and origin may together affect urchin condition and feeding rates such that they account for more intensive grazing (by Heliocidaris erythrogramma) on sheltered than exposed coasts (South Australia).
The evaluation of raw material availability from soil origin is limited to resources above the parent material.
Beyond low production cost, worldwide availability and natural biological origin of raw materials, the produced scaffolds have ideal pore size and interconnectivity features suitable for supporting biological activities, such as bone tissue growth and vascularization.
However, the results encourage further investigations: While water availability was demonstrated, the origin of the source was not.
These results suggest that plant origin and availability could help explain the greater impacts of these urchins on sheltered coasts.
The comparative analysis of the long bead sequence sheds new light on changing patterns in the availability, range, consumption and origin of glass trade beads imported into the northern interior of South Africa over a period of about 1000 years.
Despite these caveats, a comparative analysis of the bead sequence from Magoro Hill potentially could shed new light on changing patterns in the availability, range, consumption and origin of glass trade beads imported into the northern interior of South Africa over many centuries.
