Dr Nicola Stevens

Associate Professor in Physical Geography (Biodiversity and Climate Change)

Academic Profile

Nicola is Associate Professor in Physical Geography (Biodiversity and Climate Change). My current research interests are centred around understanding the dynamics of African grassy ecosystems and how they are changing in the Anthropocene. I'm especially interested in understanding how altered fire and herbivory regimes against a backdrop of changing CO2 concentrations are driving changes. Along this vein I have become particularly interested in the phenomenon of woody encroachment where open ecosystems across the tropics are being invaded by native woody species. It has also driven me to improve our ability to predict future species ranges under global change by improving our mechanistic understanding of range edges in disturbance limited systems. I have ongoing projects in Southern and East Africa.

Teaching and Supervision

Current Graduate Research Students

Kerry-Anne Grey Functional response of savanna ecosystems to climate extremes

Selected Publications

For a full publications list, please see Google Scholar

Randle, M., Stevens, N. and Midgley, G. (2018) South African Journal of Botany, 119, pp. 271–277.
1306946 - Comparing the differential effects of canopy shadi...
Osborne, C. et al. (2018) The New phytologist, 220(1), pp. 10–24.
1262334 - Human impacts in African savannas are mediated by ...
Osborne, C. et al. (2018) New Phytologist, 220(1), pp. 10–24.
1306943 - Human impacts in African savannas are mediated by ...
Stevens, N., Archibald, S. and Bond, W. (2018) Frontiers in Ecology and Evolution, 6, p. 137.
1309750 - Transplant Experiments Point to Fire Regime as Lim...
Masia, N., Stevens, N. and Archibald, S. (2018) African Journal of Range and Forage Science, 35(2), pp. 81–88.
1309751 - Identifying phenological functional types in savan...
Luvuno, L. et al. (2018) Sustainability, 10(7), p. 2221.
1309752 - Woody Encroachment as a Social-Ecological Regime S...
Stevens, N. et al. (2016) Philosophical Transactions of the Royal Society B Biological Sciences, 371(1703), p. 20150437.
1306944 - Woody encroachment over 70 years in South African ...
Stevens, N. et al. (2016) Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 371(1703), p. 20150437.
1262335 - Woody encroachment over 70 years in South African ...
Stevens, N. et al. (2016) Global Change Biology, 23(1), pp. 235–244.
1097600 - Savanna woody encroachment is widespread across th...
Stevens, N. et al. (2014) Oecologia, 175(3), pp. 1029–1040.
1306945 - Increasing temperatures can improve seedling estab...
Dr Nicola Stevens
Environmental Change Institute