2014

Eby, S., D.E. Burkepile, R.W.S. Fynn, C.E. Burns, N. Govender, N. Hagenah, S.E. Koerner, K. Matchett, D.I. Thompson, K.R. Wilcox, S.L. Collins, K. Kirkman, A.K. Knapp, and M.D. Smith. 2014. Loss of a single large grazer impacts savanna grassland plant communities similarly in North America and South Africa. Oecologia. 175: 293-303. DOI: 10.1007/s00442-014-2895-9.

Forrestel, E. J., M. J. Donoghue, and M. D. Smith. 2014. Convergent phylogenetic and functional responses to altered fire regimes in mesic savanna grasslands of North America and South Africa. New Phytologist. 203: 1000–1011. DOI: 10.1111/nph.12846.

Kirkman, K., S.L. Collins, M.D. Smith, A.K. Knapp, D.E. Burkepile, C.E. Burns, R.W.S Fynn, N. Hagenah, S.E. Koerner, K. Matchett, D.I. Thompson, K.R. Wilcox, P. Wragg. 2014. Responses to fire differ between South African and North American grassland communities. Journal of Vegetation Science. 24(3): 793-804. DOI: 10.1111/jvs.12130.

Koerner, S.E., and S.L. Collins. 2014. Interactive effects of grazing, drought, and fire on grassland plant communities in North America and South Africa. Ecology. 95(1): 98-109. DOI: 10.1890/13-0526.1.

Koerner, S.E., D.E. Burkepile, R.W.S. Fynn, C.E. Burns, S. Eby, N. Govender, N. Hagenah, K. Matchett, D. Thompson, K.R. Wilcox, S.L. Collins, K. Kirkman, A.K. Knapp, and M.D. Smith. 2014. Plant community response to loss of large herbivores differs between North American and South African savanna grasslands. Ecology. 95: 808-816. DOI: 10.1890/13-1828.1.

2013

Burkepile, D. E., C. E. Burns, C. J. Tambling, E. Amendola, G. M. Buis, N. Govender, V. Nelson, D. I. Thompson, A. D. Zinn, and M. D. Smith. 2013. Habitat selection by large herbivores in a southern African savanna: the relative roles of bottom-up and top-down forces. Ecosphere. 4(11): UNSP 139. DOI: 10.1890/ES13-00078.1.

Koerner, S.E., and S.L. Collins. 2013. Small-scale patch structure in North American and South African grasslands responds differently to fire and grazing. Landscape Ecology. 28: 1293-1306. DOI: 10.1007/s10980-013-9866-0.

Smith, M. D., B. W. van Wilgen, C. E. Burns, N. govender, A. L. F. Potgieter, S. Andelman, H. C. Biggs, J. Boitha, W. S.W. Trollope. 2013. Long-term effects of fire frequency and season on herbaceous vegetation in savannas of the Kruger National Park, South Afrcia. Journal of Plant Ecology. 6(1): 71-83. DOI: 10.1093/jpe/rts014.

2012

Knapp, A. K., D. L. Hoover, J. M. Blair, G. Buis, D. E. Burkepile, A. Chamberlain, S. L. Collins, R. W. S. Fynn, K. P. Kirkman, M. D. Smith, D. Blake, N. Govender, P. O’Neal, T. Schreck, and A. Zinn. 2012. A test of two mechanisms proposed to optimize grassland aboveground primary productivity in response to grazing. Journal of Plant Ecology. 5: 357-365.DOI: 10.1093/jpe/rts020.

Melzer, S. E., O. A. Chadwick, A. S. Hartshorn, L. M. Khomo, A. K. Knapp, and E. F. Kelly. 2012. Lithologic controls on biogenic silica cycling in South African savanna ecosystems. Biogeochemistry. 108(1-3): 317-334. DOI: 10.1007/s10533-011-9602-2.

2010

Melzer, S. E., A. K. Knapp, K. P. Kirkman, M. D. Smith, J. M. Blair, and E. F. Kelly. 2010. Fire and grazing impacts on silica production and storage in grass dominated ecosystems. Biogeochemistry. 97: 263-278. DOI: 10.1007/s10533-009-9371-3.

2009

Buis, G., J. Blair, D. Burkepile, C. Burns, A. Chamberlain, P. Chapman, S. Collins, R. Fynn, N. Govender, K. Kirkman, M. Smith, and A. Knapp. 2009. Controls of Aboveground Net Primary Production in Mesic Savanna Grasslands: An Inter-Hemispheric Comparison. Ecosystems. 12: 982-995. DOI: 10.1007/s10021-009-9273-1.

Burns, C. E., S. L. Collins, and M. D. Smith. 2009. Plant community response to loss of large herbivores: Comparing consequences in a South African and a North American grassland. Biodiversity and Conservation. 18: 2327-2342.DOI: 10.1007/s10531-009-9590-x.

2008

Swemmer, A.M. and A.K. Knapp. 2008. Defoliation synchronizes above-ground growth of co-occurring C₄ grass species. Ecology. 89:2860-2867.

2007

Swemmer, A.M., A.K. Knapp, and H.A. Snyman. 2007. Intra-seasonal precipitation patterns and aboveground productivity in three perennial grasslands. Journal of Ecology. 95: 780-788.

Zeglin, L. H., M. Stursova, R. L. Sinsabaugh, and S. L. Collins. 2007. Microbial responses to nitrogen addition in three contrasting grassland ecosystems. Oecologia. 154(2): 349-359. DOI: 10.1007/s00442-007-0836-6.

2006 & Before

Knapp, A. K., C. E. Burns, R. W. S. Fynn, K. P. Kirkman, C. D. Morris, and M. D. Smith. 2006. Convergence and contingency in production-precipitation relationships in North American and south african C-4 grasslands. Oecologia. 149: 456-464.DOI: 10.1007/s00442-006-0468-2.

Knapp, A. K., M. D. Smith, S. L. Collins, N. Zambatis, M. Peel, S. Emery, J. Wojdak, M. C. Horner-Devine, H. Biggs, J. Kruger, and S. J. Andelman. 2004. Generality in ecology: Testing North American grassland rules in South African savannas. Frontiers in Ecology and the Environment. 2: 483-491.DOI: 10.2307/3868337.

 

In Review/In Prep

Burkepile, D. E., D. Thompson, R. W. S. Fynn, S. E. Koerner, S. Eby, N. Govender, N. Hagenah, N. P. Lemoine, J. R. Matchett, K. R. Wilcox, S. L. Collins, K. P. Kirkman, A. K. Knapp, and M. D. Smith. In Prep. Herbivore size guilds and predation risk drive plant community dynamics in a southern African savanna.

Smith, M. D., A. K. Knapp, S. L. Collins, D. E. Burkepile, K. P. Kirkman, S. E. Koerner, S. Eby, N. Govender, C E. Burns, R. W.S. Fynn, N. Hagenah, K. J. Matchett, D. I. Thompson, J. M. Blair, Kevin R. Wilcox. In Prep. Shared drivers, divergent responses, and common mechanisms: insights from comparing mesic savanna grasslands.

Burkepile, D. E., R. W.S. Fynn, D. I. Thompson, S. E. Koerner, S. Eby, N. Govender, N. Hagenah, N. P. Lemoine, K. J. Matchett, K. R. Wilcox, S. L. Collins, K. P. Kirkman, A. K. Knapp, and M. D. Smith. In Prep. Herbivore body size interacts with habitat productivity to determine plant community organization in an African savanna.

Forrestel, E. J., M. J. Donoghue, and M. D. Smith. In Prep. Functional differences between dominant grasses drive divergent responses to large herbivore loss in mesic savanna grasslands of North America and South Africa.