Tshisikhawe, Milingoni P.Van Rooyen, Margaretha W.2019-08-292019-08-292012-12-03, Milingoni P. and Margaretha W. Van Rooyen (2012) Population biology of Brackenridgea zanguebarica in the presence of harvesting. University of Venda, South Africa. Journal of Medicinal Plants Research Vol. 6(46), pp. 5748-5756, 3 December 2012.1996-0875DOI: 10.5897/JMPR12.1274http://hdl.handle.net/11602/1388Population biology studies play a major role in understanding the ecology of our highly utilized natural resources. Intense and frequent harvesting of bark from species with a high market demand often result in ring-barking of trees. The trees subsequently die, and the species becomes rare over time. Brackenridgea zanguebarica Oliv. is a species in demand not only because of its medicinal value but also because it is highly regarded for its magical value. The species has a limited distribution and is found only at Thengwe in the whole of South Africa. The population structure of the species was investigated and the response of the species to harvesting pressure evaluated in order to gain an understanding of its survival strategies. In spite of the high demand for the species it seems to be surviving the harvesting pressure. B. zanguebarica showed a healthy population structure with lots of seedlings. The adult individuals showed a very high degree of bark regeneration as a response to bark removal from medicine men. The inverse J-shaped curve showed that the population is healthy although sharp decreases between stem diameter size classes were observed. Fewer older individuals have healthy crown covers since crown health status tends to decrease with increase in stem diameter. It is therefore important to monitor the diameter size classes that are being impacted negatively by medicinal bark harvesting for the population to remain viable at all times.enBark harvestingUCTDMagical valuePopulation structureRegenerationSouth AfricaArticleTshisikhawe Milingoni P, Van Rooyen Margaretha W. Population biology of Brackenridgea zanguebarica in the presence of harvesting. 2012; http://hdl.handle.net/11602/1388.Tshisikhawe, Milingoni P., & Van Rooyen, Margaretha W. (2012). Population biology of Brackenridgea zanguebarica in the presence of harvesting. http://hdl.handle.net/11602/1388Tshisikhawe, Milingoni P., and Margaretha W. Van Rooyen "Population biology of Brackenridgea zanguebarica in the presence of harvesting." (2012) http://hdl.handle.net/11602/1388TY - Article AU - Tshisikhawe, Milingoni P. AU - Van Rooyen, Margaretha W. AB - Population biology studies play a major role in understanding the ecology of our highly utilized natural resources. Intense and frequent harvesting of bark from species with a high market demand often result in ring-barking of trees. The trees subsequently die, and the species becomes rare over time. Brackenridgea zanguebarica Oliv. is a species in demand not only because of its medicinal value but also because it is highly regarded for its magical value. The species has a limited distribution and is found only at Thengwe in the whole of South Africa. The population structure of the species was investigated and the response of the species to harvesting pressure evaluated in order to gain an understanding of its survival strategies. In spite of the high demand for the species it seems to be surviving the harvesting pressure. B. zanguebarica showed a healthy population structure with lots of seedlings. The adult individuals showed a very high degree of bark regeneration as a response to bark removal from medicine men. The inverse J-shaped curve showed that the population is healthy although sharp decreases between stem diameter size classes were observed. Fewer older individuals have healthy crown covers since crown health status tends to decrease with increase in stem diameter. It is therefore important to monitor the diameter size classes that are being impacted negatively by medicinal bark harvesting for the population to remain viable at all times. DA - 2012-12-03 DB - ResearchSpace DP - Univen KW - Bark harvesting KW - Magical value KW - Population structure KW - Regeneration KW - South Africa LK - https://univendspace.univen.ac.za PY - 2012 SM - 1996-0875 T1 - Population biology of Brackenridgea zanguebarica in the presence of harvesting TI - Population biology of Brackenridgea zanguebarica in the presence of harvesting UR - http://hdl.handle.net/11602/1388 ER -