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Van Niekerk, A


Peer-reviewed (accredited) papers:   Dabrowski JM, Peall SKC, Van Niekerk A, Reinecke AJ, Day JA & Schulz R 2002. Predicting runoff-induced pesticide input in agricultural sub-catchment surface waters: linking catchment variables and contamination. Water Research, 36:4975-4984. http://dx.doi.org/10.1016/S0043-1354(02)00234-8   Du Toit DA, Mouton P le FN, Flemming AF & Van Niekerk A 2005.  Climate and the Presence of Generation Glands in Female Girdled Lizards:  A Case Study of the cordylus-niger-oelofseni Complex.  Journal of Herpetology 39: 384-388.   Eloff PJ & Van Niekerk A 2005.  Game, fences and motor vehicle accidents: spatial patterns in the Eastern Cape. South African Journal of Wildlife Research 35(2): 125–130.   Botes A, McGeoch MA, Robertson HG, Van Niekerk A, Davids HP & Chown SL 2006. Ants, altitude and change in the northern Cape Floristic Region. Journal of Biogeography, 33:71-90. http://dx.doi.org/10.1111/j.1365-2699.2005.01336.x   Walther BA, Schaffer N, Van Niekerk A, Thuiller W, Rahbek C, & Chown SL 2007. Modelling the winter distribution of a rare and endangered migrant, the Aquatic Warbler Acrocephalus paludicola. Ibis, 149: 701-714. http://dx.doi.org/10.1111/j.1474-919X.2007.00690.x   Eloff PJ & Van Niekerk A 2008.  Temporal patterns of animal-related traffic accidents in the Eastern Cape, South Africa. South African Journal of Wildlife Research, 38(2): 153-162. http://dx.doi.org/10.3957/0379-4369-38.2.153   Janse van Rensburg D, Mouton le F, Van Niekerk A 2009. Why cordylid lizards are black at the south-western tip of Africa. Journal of Zoology, 278: 333-341. http://dx.doi.org/10.1111/j.1469-7998.2009.00581.x   Van Niekerk A 2010. A comparison of land unit delineation techniques for land evaluation in the Western Cape, South Africa. Land Use Policy, 27(3): 937-945. http://dx.doi.org/10.1016/j.landusepol.2009.12.007   Van Niekerk A & Joubert SJ 2011. Input variable selection for interpolating high-resolution climate surfaces for the Western Cape. Water SA, 37(3): 271-280. http://hdl.handle.net/10019.1/16331   Mashimbye ZE, Cho MA, Nell JP, De Clercq WP, Van Niekerk A & Turner JP 2012. Model-based integrated methods for quantitative estimation of soil salinity from hyperspectral remote sensing data: A case study of selected South African soils. Pedosphere, 22: 1-10.   Fourie C, Van Niekerk A & Mucina L 2012. Semi-automated segment generation for geographic novelty detection using edge and area metrics. South African Journal of Geomatics. 1(2): 133-148.   Donaldson R, Van Niekerk A, Du Plessis D & Spocter M 2012. Non-metropolitan Growth Potential of Western Cape Municipalities. Urban Forum, 23: 367-389. http://dx.doi.org/10.1007/s12132-011-9139-4   Naude S, Kleynhans, TE, Van Niekerk A, Ellis F & Lambrechts JJN 2012. Application of spatial resource data to assist in farmland valuation. Land Use Policy, 29(3): 614-628. http://dx.doi.org/10.1016/j.landusepol.2011.10.004   Du Plessis H & Van Niekerk A 2012. A curriculum framework for Geographical Information Science (GISc) training at South African universities. South African Journal of Higher Education, 26(2): 329-345. Donaldson R, Spocter M, Du Plessis D & Van Niekerk A 2012. Towards generic interventions to stimulate growth potential in small towns of the Western Cape province, South Africa. South African Geographical Journal 94(2):120-136. http://dx.doi.org/10.1080/03736245.2012.742781 Myburgh G & Van Niekerk A 2013. Effect of feature dimensionality on object-based land cover classification: A comparison of three classifiers. South African Journal of Geomatics, 2(1): 13-27. Van der Merwe JH & Van Niekerk A 2013. Application of geospatial technology for gap analysis in tourism planning for the Western Cape. South African Journal of Science, 109(3/4): 58-67. http://dx.doi.org/10.1590/sajs.2013/1226 Engelbrecht HM, Daniels S & Van Niekerk A 2013. Tracking the impact of Pliocene / Pleistocene sea level and climatic oscillations on the cladogenesis of the Cape legless fossorial skink species complex, Acontias meleagris in South Africa. Journal of Biogeography, 40: 492-506. http://dx.doi.org/10.1111/jbi.12024 Stuckenberg T, Munch Z & Van Niekerk A 2013. Multi-temporal remote sensing land-cover change detection for biodiversity assessment in the Berg River catchment. South African Journal of Geomatics, 2(3): 190-205. Du Plessis H & Van Niekerk A 2013. A Comparison of geographical information science competency requirements. South African Journal of Geomatics, 2(3): 206-217. Musakwa W & Van Niekerk A 2013. Implications of land use change for the sustainability of urban areas: A case study of Stellenbosch, South Africa. Cities, 33: 143-156. http://dx.doi.org/10.1016/j.cities.2013.01.004 Van der Merwe JH, Ferreira SLA & Van Niekerk A 2013.  Resource-directed spatial planning of agritourism with GIS. South African Geographical Journal. 95(1): 16-37. http://dx.doi.org/10.1080/03736245.2013.805080 Mashimbye ZE, De Clercq WP & Van Niekerk A 2014. An evaluation of digital elevation models (DEMs) for delineating land components. Geoderma, 213: 312-319. http://dx.doi.org/10.1016/j.geoderma.2013.08.023 Von Gerhardt K, Van Niekerk A, Kidd M, Samways M & Hanks J (In Press). The role of elephant pathways as a spatial variable in crop-raiding location. Oryx. * Musakwa W & Van Niekerk A 2014. Monitoring urban sprawl and sustainable urban development using the Moran index: A case study of Stellenbosch, South Africa. International Journal of Applied Geospatial Research. 5(3): xxx-xxx* Myburgh G & Van Niekerk A 2014. Impact of training set size on object-based land cover classification: A comparison of three classifiers. International Journal of Applied Geospatial Research. 5(3): xxx-xxx* Kaplan H, Van Niekerk A, Le Roux JJ, Richardson DM & Wilson JRU (In Press). Incorporating risk mapping at multiple spatial scales into eradication management plans. Biological Invasions. * Accepted for publication (i.e. review process completed and successful)   Peer-reviewed (accredited) book chapters:   Mucina L, Daniel G, Stephenson G, Boonzaaier I, Van Niekerk A, Barrett M, Barrett R, Tichý L & Valachovič M 2013. Floristic-Ecological Mapping in the Northern Kimberley: Field Survey Methods and Mapping Protocols. In: Mucina L & Daniel G (eds), Vegetation Mapping in the Northern Kimberley, Western Australia. pp. 26-87. Curtin University, Perth, WA. http://academic.sun.ac.za/cga/documents/Kim_Map.pdf Mucina L, Stephenson G, Daniel G, Van Niekerk A & Boonzaaier I 2013. A Floristic-Ecological Vegetation Map of the Mitchell Plateau Region (Northern Kimberley, Western Australia). In: Mucina L & Daniel G (eds), Vegetation Mapping in the Northern Kimberley, Western Australia. pp. 88-113. Curtin University, Perth, WA. http://academic.sun.ac.za/cga/documents/Kim_Map.pdf Mucina L, Stephenson G, Daniel G, Van Niekerk A & Boonzaaier I 2013. A Floristic-Ecological Vegetation Map of the Pantijan Area (Northern Kimberley, Western Australia). In: Mucina L & Daniel G (eds), Vegetation Mapping in the Northern Kimberley, Western Australia. pp. 114-131. Curtin University, Perth, WA. http://academic.sun.ac.za/cga/documents/Kim_Map.pdf Peer-reviewed (accredited) published conference proceedings: Fourie CE, Van Niekerk A & Mucina L 2011. Optimising a one-class SVM for geographic object-based novelty detection. AfricaGEO 2011, Cape Town, South Africa. 31 May – 2 June 2011. pp: 1-25 Stuckenberg T, Münch Z & Van Niekerk A 2012. Multi-temporal remote sensing land-cover change detection as tool for biodiversity conservation in the Berg River catchment. GISSA Ukubuzana 2012, Johannesburg, South Africa. 2 Oct – 4 Oct 2012. Pp: 1-10. ISBN 978-0-620-52913-6 Du Plessis H & Van Niekerk A 2012. A comparison of Geographical Information Science competency requirements. GISSA Ukubuzana 2012, Johannesburg, South Africa. 2 Oct – 4 Oct 2012. Pp: 1-13. ISBN 978-0-620-52913-6
Universiteit Stellenbosch University