S. Archibald, W. J. Bond, W. D. Stock, and D. H. Fairbanks, Shaping the landscape: 451 fire-grazer interactions in an African savanna, Ecological Applications, vol.15, pp.96-109, 2005.

J. S. Bircham and J. Hodgson, The influence of sward condition on rates of herbage, 1983.

, Version définitive du manuscrit publié dans / Final version of the manuscript published in, Journal of Ecology, 2010.

C. R. Spedding, The physiological basis of grazing management, Journal, p.547, 1965.

, British Grassland Society, vol.20, pp.7-14

D. W. Stephens and J. R. Krebs, Foraging Theory, p.549, 1986.

A. M. Swemmer, A. K. Knapp, and H. A. Snyman, Intra-seasonal precipitation patterns 551 and above-ground productivity in three perennial grasslands, Journal of Ecology, vol.95, pp.780-552, 2007.

M. Valeix, H. Fritz, S. Chamaille-jammes, M. Bourgarel, and F. Murindagomo, , 2008.

, Fluctuations in abundance of large herbivore populations: insights into the influence of 555 dry season rainfall and elephant numbers from long-term data, Animal conservation, vol.11, pp.391-400

R. J. Verweij, J. Verrelst, P. E. Loth, I. M. Heitkonig, and A. M. Brunsting, , 2006.

, Grazing lawns contribute to the subsistence of mesoherbivores on dystrophic savannas

. Oikos, , vol.114, pp.108-116

D. F. Vesey-fitzgerald, The utilization of natural pasture by wild animals in the Rukwa 561 valley, Tanganyika. East African Wildlife Journal, vol.3, pp.38-48, 1965.

R. Waite, Botanical and chemical changes in maturing grass and their effect on its 563 digestibility, vol.38, pp.50-56, 1963.

M. S. Waldram, W. J. Bond, and W. D. Stock, Ecological engineering by a mega-grazer: 565 white rhino impacts on a South African savanna, Ecosystems, vol.11, pp.101-112, 2008.

A. Whateley and R. N. Porter, The woody vegetation communities of the Hluhluwe, 1983.

. Corridor-umfolozi, Game Reserve Complex. Bothalia, vol.14, pp.745-758

R. G. Wiegert and F. C. Evans, Investigations of secondary productivity in grasslands, 1967.

, Secondary productivity of terrestrial ecosystems, principles and methods

, Version définitive du manuscrit publié dans / Final version of the manuscript published in, Journal of Ecology, 2010.

J. F. Wilmshurst, J. M. Fryxell, B. P. Farm, A. R. Sinclair, and C. P. Henschel, Spatial 572 distribution of Serengeti wildebeest in relation to resources, Canadian Journal, 1999.

, Zoology-Revue Canadienne de Zoologie, vol.77, pp.1223-1232

R. C. Ydenberg and H. H. Prins, Spring grazing and the manipulation of food quality 575 by barnacle geese, Journal of Applied Ecology, vol.18, pp.443-453, 1981.

, Version définitive du manuscrit publié dans / Final version of the manuscript published in, Journal of Ecology, 2010.

, Daily variation of cumulative rainfall (mm) over seven preceding days in Hluhluwe 622 during two contrasted years (an exceptionally dry year: 2002, and an average rainfall year, p.623