Interplay of competition and facilitation in grazing succession by migrant Serengeti herbivores

T. Michael Anderson, Staci A. Hepler, Ricardo M. Holdo, Jason E. Donaldson, Robert J. Erhardt, Grant J.C. Hopcraft, Matthew C. Hutchinson, Sarah E. Huebner, Thomas A. Morrison, Jeffry Muday, Issack N. Munuo, Meredith S. Palmer, Johan Pansu, Robert M. Pringle, Robert Sketch, Craig Packer