Dr Nicola Stevens

Trapnell Research Fellow in African Environments

Academic Profile

Nicola is the current Trapnell Fellow in African Environments. 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

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) Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 371(1703), p. 20150437.
1306944 - 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.
1262544 - Increasing temperatures can improve seedling estab...
Stevens, N. et al. (2014) Oecologia, 175(3), pp. 1029–1040.
1306945 - Increasing temperatures can improve seedling estab...
Stevens, N. et al. (2014) Journal of vegetation science : official organ of the International Association for Vegetation Science, 25(2), pp. 363–373.
1262545 - Investigating potential determinants of the distri...
Stevens, N. et al. (2014) Journal of Vegetation Science, 25(2), pp. 363–373.
1309753 - Investigating potential determinants of the distri...
Stevens, N. et al. (2013) South African Journal of Botany, 86, p. 143.
1544305 - Characterising the germination niche of two common...
Buitenwerf, R. et al. (2012) Global Change Biology, 18(2), pp. 675–684.
1309754 - Increased tree densities in South African savannas...
Buitenwerf, R. et al. (2011) Journal of Tropical Ecology, 27(4), pp. 375–382.
1309755 - Interactions between large herbivores and litter r...
Dr Nicola Stevens
Environmental Change Institute