Shelley Edwards

Lecturer
Zoology and Entomology
Rhodes University
South Africa

Academician General Science
Biography

The amazing complexity of the natural world never ceases to amaze me, and I am truly privileged to be able to call myself an evolutionary biologist. After completing my undergraduate studies in Biodiversity and Ecology, I remained at the University of Stellenbosch to complete both my BSc (Hons) and MSc degrees in Zoology, under the supervision of Prof Conrad Matthee. It was during my position of research assistant at the South African National Biodiversity Institute (SANBI) in Cape Town in 2009 that I became interested in herpetofauna, and I completed my PhD work in 2013 at SANBI (though registered at Stellenbosch University), under the supervision of Prof Krystal Tolley. After one and a half years of postdoctoral work with both Prof Tolley and Dr John Measey (Stellenbosch University), I accepted the position of lecturer in the Department of Zoology and Entomology, Rhodes University.

Research Intrest

"In my research to date, I have been interested in how different species have adapted and evolved, and what the driving forces are for speciation events. In addition, I am interested in the seeming lack of congruence between genetic structure and morphological groupings in both small mammals, reptiles and amphibians in the southern African region. To explore these biological research questions, I have utilised a multidisciplinary approach to understanding the evolutionary processes in various vertebrate taxa (namely southern African mammals, reptiles and amphibians). I have used phylogenetic and phylogeographic techniques to determine genetic variation and relationships, morphometric techniques to investigate body shape, analyses to determine diets, and performance analyses to investigate the functional aspects of the various species. For my doctoral work, I investigated the radiations of the southern African lacertid lizards from a genetic, morphological, functional and ecological viewpoint. These lizards have got to be the highlight of my career thus far, as they are quite simply fascinating. I realise that every biologist feels that their study species is top notch, but it is the fact that these lizards seem to be so adept at adapting to their environments that truly fascinates me. My postdoctoral work and my current research builds on the techniques that I learned during my postgraduate years, and I have expanded the range of taxa that I work on, to include amphibians, snakes and arachnids. I will be furthering my research by including 3D geometric morphometrics and SEM analyses in my research. In the future, I hope to continue to work with African taxa, as I feel that the processes driving speciation of our fauna needs to be understood, in order for it to be protected."

List of Publications
Vanhooydonck B, Measey GJ, Edwards S, Makhubo B, Tolley KA, et al. (2015) The effects of substratum on locomotor performance in lacertid lizards. Biol J Linn Soc 115: 869-881.
da Silva JM, Feldheim K, Daniels RJ, Edwards S, Tolley KA (2016) Analysis of genetic diversity in Rose’s mountain toadlet (Capensibufo rosei) using novel microsatellite markers. Afr J Herp 65: 69-82.
Edwards S, Herrel A, Vanhooydonck B, Measey GJ, Tolley KA (2016) Diving in head first: trade-offs between phenotypic traits and sand-diving predator escape strategy in Meroles desert lizards. Biol J Linn Soc 119: 919-931.

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