Evaluating threats and conservation status of South African Aloe

Main Article Content

Samuel O. Bamigboye
https://orcid.org/0000-0003-1020-0375

Abstract

South Africa is one of the biodiversity hotspots for Aloe in Africa.  This makes it important to evaluate the conservation status and threats to this genus.  The South African National Biodiversity Institute (SANBI) Red List was employed to evaluate these two factors.  Results revealed that 44% of all species in this genus are of conservation concern with the majority of them facing threats.  This study recommends that more attention such as strengthening the protection of these species and controlling the threats identified in this study should be given to species in this genus in terms of conservation management to reduce their risk of extinction.


  

Article Details

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Short Communications

References

Bamigboye, S.O. (2019). Conservation status and threats to endemic plant species of Griqualand West of South Africa. Journal of Plant Development 26: 117–121. https://doi.org/10.33628/jpd.2019.26.1.11

Bamigboye, S.O., P.M. Tshisikhawe & P.J. Taylor (2016). Review of extinction risk in African cycads. Phyton International Journal of Experimental Botany 85(1): 333–336.

Bjorå, C.S., E. Wabuyele, O.M. Grace, I. Nordal & L.E. Newton (2015). The uses of Kenyan aloes: an analysis of implications for names, distribution and conservation. Journal of Ethnobiology and Ethnomedicine 11: 82. https://doi.org/10.1186/s13002-015-0060-0 DOI: https://doi.org/10.1186/s13002-015-0060-0

Botes, C., S.D. Johnson & R.M. Cowling (2009a). The birds and the bees: Using selective exclusion to identify effective pollinators of African tree aloes. International Journal of Plant Science 170 (2): 151–156. https://doi.org/10.1086/595291 DOI: https://doi.org/10.1086/595291

Botes, C., P.D. Wragg & S.D. Johnson (2009b). New evidence for bee-pollination systems in Aloe (Asphodelaceae: Aloideae), a predominantly bird-pollinated genus. South African Journal of Botany 75: 675–681. https://doi.org/10.1016/j.sajb.2009.07.010 DOI: https://doi.org/10.1016/j.sajb.2009.07.010

Cousins, S.R. & E.T.F. Witkowski (2012). African Aloe Ecology: A Review. Journal of Arid Environments 85: 1–17. https://doi.org/10.1016/j.jaridenv.2012.03.022 DOI: https://doi.org/10.1016/j.jaridenv.2012.03.022

Forbes, R.W., A.J.F.K. Craig, P.E. Hulley & D.M. Parker (2009). Seasonal variation in the avian community associated with an Aloe ferox (Asphodelaceae, Mill.) flowering event in the Eastern Cape, South Africa. In: Harebottle D.M., A.J.F.K. Craig, M.D. Anderson, H. Rakotomanana & M. Muchai (eds.). Proceedings of the 12th Pan-African Ornithological Congress, 2008, Cape Town.

Grace, O.M. (2009). Systematics and biocultural value of Aloe L. (Asphodelaceae). PhD Thesis. University of Pretoria, 158pp.

Grace, O.M. (2011). Current perspectives on the economic botany of the genus Aloe Xanthorrhoeaceae. South African Journal of Botany 98: 980–987. https://doi.org/10.1016/j.sajb.2011.07.002 DOI: https://doi.org/10.1016/j.sajb.2011.07.002

Grace, O.M., M.S.J. Simmond, G.F. Smith & A.E. van Wyk (2009). Documented utility and biocultural value of Aloe L. (Asphodelaceae): a review. Economic Botany 63(2): 167–178. https://doi.org/10.1007/s12231-009-9082-7 DOI: https://doi.org/10.1007/s12231-009-9082-7

Grace, O.M., S. Buerki, M.R. Symonds, F. Forest, A.E. van Wyk, G.F. Smith, R.R. Klopper, C.S. Bjorå, S. Neale, S. Demissew, M.S.J. Simmonds & N. Rønsted (2015). Evolutionary history and leaf succulence as explanations for medicinal use in aloes and the global popularity of Aloe vera. BMC Evolutionary Biology 15: 29. https://doi.org/10.1186/s12862-015-0291-7 DOI: https://doi.org/10.1186/s12862-015-0291-7

Klopper R.R. & G.F. Smith (2013). Aloes of the world: When, where and who? Aloe 50 (1&2): 44–52.

Moraswi I., S.O. Bamigboye & P.M. Tshisikhawe (2019). Conservation status and threats to vascular plant species endemic to Soutpansberg Mountain in Limpopo Province, South Africa. International Journal of Plant Biology. 10: 7978: 14–16. https://doi.org/10.4081/pb.2019.7978 DOI: https://doi.org/10.4081/pb.2019.7978

Nicolson, S.W. & M. Nepi (2005). Dilute nectar in dry atmospheres: nectar secretion patterns in Aloe castanea (Asphodelaceae). International Journal of Plant Sciences 166(2): 227–233. https://doi.org/10.1086/427616 DOI: https://doi.org/10.1086/427616

Smith, G.F. & B. van Wyk (2009). Aloes in Southern Africa. Struik Nature, Cape Town.

South African National Biodiversity Institute (SANBI) National Red List version for genus Aloe (2017). http://redlist.sanbi.org/genus.php?genus=2206.

Symes, C.T., S.W. Nicholson & A.E. McKechnie (2008). Response of avian nectarivores to the flowering of Aloe marlothii: a nectar oasis during dry South African winters. Journal of Ornithology 149: 13–22. https://doi.org/10.1007/s10336-007-0206-5 DOI: https://doi.org/10.1007/s10336-007-0206-5

Wabuyele, E. & S. Kyalo (2008). Sustainable Use of East African Aloes: the Case of Commercial Aloes in Kenya. NDF Workshop Case Studies, WG3 e Succulents and Cycads, Case Study 1: Aloe spp. East and southern Africa, Mexico, 17pp.

Williams, V.L., J.E. Victor & N.R. Crouch (2013). Red listed medicinal plants of South Africa: status, trend and assessment challenges. South African Journal of Botany 86: 23–35. https://doi.org/10.1016/j.sajb.2013.01.006 DOI: https://doi.org/10.1016/j.sajb.2013.01.006

Victor, J.E. & M. Keith (2004). The orange list: a safety net for biodiversity in South Africa South African Journal of Science 100: 139–141.