Journal of Water Resource and Hydraulic Engineering (JWRHE)
An Open Access Journal
ISSN:2306-7705(Print)      ISSN:2306-7691(Online)
Prof. Bill Hu, Florida State University, USA
Frequency: Quarterly
Climate Change Impacts on Dwarf Succulents in Namibia as a Result of Changes in Fog and Relative Humidity
Full Paper(PDF, 1451KB)
The Succulent Karoo is well known for being rich in species with approximately 5,000 vascular plant species, and has a high floral endemicity. In this study, we investigate the current status of the dwarf succulents of Namibia, as represented by two genera in the Aizoaceae: Conophytum (restricted distribution) and Lithops (wider distribution) and examine possible climate change impacts on these genera by studying the effects on non-rainfall moisture availability (number fog days and relative humidity). Both genera show a contraction and loss of habitat, despite their drought resistant nature and adaptation to the current arid environment. This study demonstrates that climate-change induced alterations to the number of fog days in Namibia results insignificant changes in the distribution of the dwarf succulents, and shows the Atlantic coast and Orange River areas as potential refuge areas for dwarf succulents such as Conophytum and Lithops.
Keywords:Climate Change; Conophytum; Lithops; Dwarf Succulents; Fog; Relative Humidity; Succulent Karoo; Namibia
Author: Danni Guo1, Andrew J. Young2, Philip G. Desmet3, Guy F. Midgley4
1.South African National Biodiversity Institute, Kirstenbosch, Private Bag X7, Claremont 7735, Cape Town, RSA
2.School of Natural Sciences and Psychology, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
3.Department of Zoology, Nelson Mandela Metropolitan University, P.O. Box 77000, Port Elizabeth 6031, RSA
4.Department of Botany and Zoology, Stellenbosch University, Private Bag X1, Matieland 7602, Cape Town, RSA
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