Rhodes University Logo

Dr Grant Martin

Research Officer: Centre for Biological Control


Office: F18, First Floor, Life Science Building

Phone: +27  46 603 8702

Email: g.martin@ru.ac.za  

PhD, Entomology, Rhodes University (2013)

Grant completed his PhD at Rhodes University in 2013. Grant is the project leading on high elevation invasive weeds species and the lead researcher on the biological control programme against the invasive aquatic weed Sagittaria platyphylla (Delta Arrow head).  Grant has also managed the Rhodes University mass rearing facility and the persons with disabilities programme. The success of these programmes has allowed for mass rearing facilities suitable for employing persons with disabilities to be established in other areas of the country.

Research interests
  • High elevation invasive species
  • GIS
  • Biological control of weeds
  • Abiotic and biotic drivers of species invasions
Recent publications

Baars, J-R., Coetzee, J.A., Martin, G.D., Hill, M.P. and Caffrey, J.M. 2010. Natural enemies from South Africa for biological control of Lagarosiphon major (Ridl.) Moss ex Wager (Hydrocharitaceae) in Europe. Hydrobiologia. 656: 149-158.

Martin, G.D. & Coetzee, J.A. 2011. Fresh water aquatic plant invasion risks posed by the aquarium trade, aquarists and the internet trade in South Africa WaterSA 37: 371-380.

Coetzee, J.A., Bownes, A. & Martin, G.D. 2011. Prospects for the biological control of submerged aquatic macrophytes. African Entomology 19(2): 469–487.

Martin, G.D., Coetzee, J.A. and Baars, J-R. 2013. Hydrellia lagarosiphon Deeming (Diptera: Ephydridae), a potential biological control agent for the submerged aquatic weed, Lagarosiphon major (Ridl.) Moss ex Wager (Hydrocharitaceae). African Entomology  21(1):151-160.

Martin, G.D. and Coetzee, J.A. 2014. Competition between two aquatic macrophytes, Lagarosiphon major (Ridley) Moss (Hydrocharitaceae) and Myriophyllum spicatum Linnaeus (Haloragaceae) as influenced by substrate sediment and nutrients. Aquatic Botany 114: 1-11.

Paterson, I.D., Vitorino, M.D, de Cristo S.C., Martin, G., Hill, M.P. 2014. Prioritization of potential agents for the biological control of the invasive alien weed, Pereskia aculeata (Cactaceae), in South Africa. Biocontrol Science and Technology. 24:407-425.  

Peel, R.A., Tweddle, D., Simasiku, E.K.,  Martin, G.D.,  Lubanda, J., Hay, C.J. &  Weyl, O.L.F. 2016. Ecology, fish and fishery of LakeLiambezi, a recently refilled floodplain lake in the Zambezi Region, Namibia. African Journal of Aquatic Science.40:4, 417-424.

Nxumalo, M. M., Lalla, R., Renteria, J. L., & Martin, G. 2016. Hydrocleys nymphoides (Humb. & Bonpl. ex Willd.) Buchenau: first record of naturalisation in South Africa. BioInvasions Records. 5, 1: 1–6

Weyl, P. S. R., & Martin, G. D. 2016. Have grass carp driven declines in macrophyte occurrence and diversity in the Vaal River, South Africa?.African Journal of Aquatic Science, 41:2, 241-245, DOI: 10.2989/16085914.2015.1137856

Kwong, R.M., Broadhurst, L.M., Keener, B.R., Coetzee, J.A., Knerr, N. and Martin, G.D., 2017. Genetic analysis of native and introduced populations of the aquatic weed Sagittaria platyphylla–Implications for biological control in Australia and South Africa. Biological Control112, pp.10-19.

Kwong, R., Broadhurst, L., Keener, B., Coetzee, J.A., Martin, G. and Kerr, N. 2017. Genetic analysis of native and introduced populations of the aquatic weed Sagittaria platyphylla (Engelm.) J.G. Sm. - implications for biological control in Australia and South Africa. Biological Control 112: 10-19.

Weaver, K.N., Hill, J.M., Martin, G.D., Paterson, I.D., Coetzee, J.A. & Hill, M.P. 2017. Community Entomology: Insects, Science and Society. Journal for New Generation Science, 15(1): In press

 Martin, G.D., Hill, M.P., Coetzee, J.A., Weaver, K.N. and Hill J.M. 2018. Synergies between research organisations and the wider community in enhancing weed biological control in South Africa. BioControl, DOI 10.1007/s10526-017-9846-4

 Martin, G.D., Compton, S.G. &  Coetzee, J.A. 2018. Plant-herbivore-parasitoid interactions in an experimental freshwater tritrophic system: higher trophic levels modify competitive interactions between invasive macrophytes. Hydrobiologia. DOI 10.1007/s10750-017-3417-7

Martin, G.D., Coetzee, J.A, Lloyd, Woolger1, M.T  Nombewu, S.E. Ndlovu Mand Kwong, R.M. 2018.  Invaded habitat incompatibly affects suitability of biological control agent Listronotus sordidus for Sagittaria platyphylla in South Africa. Biocontrol Science and Technology. In press

Martin, G.D., Coetzee, J.A.,  Weyl, P.S.R.,  Parkinson,  M.C.  and. HillM.P. 2017. Biological control of Salvinia molesta in South Africa revisited. BioControl In review

 Marin, G., Humphry,. H. & Downey, P. 2018. The biology of Southern hemisphere weeds Robinia pseudoacacia L.  Plant Protection Quarterly. In Press


Last Modified: Mon, 05 Mar 2018 10:07:38 SAST