Christiaan Gildenhuys comments (AUDIO) Stellenbosch University Your browser does not support the audio element. Caption Christiaan Gildenhuys comments on history of the introduction of oak trees to South Africa by the first settlers in 1656 and their current status. Credit Christiaan Gildenhuys Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.