Grazing herbivores reduce fire activity via fuel reductions across broad-scale savanna gradients

Allison Karp1, Sally E. Koerner2, Gareth Hempson3, Joel O Abraham4, Michael Anderson5, Deron E Burkepile6, Jacob R Goheen7, Jennifer A. Guyton4, Duncan M Kimuyu8, Neha Mohanbabu9, Mark E Ritchie9, Todd M Palmer10, Robert M Pringle4, David I Thompson11, Lauren M Porensky12, Truman Young13 and Ann Carla Staver1, (1)Yale University, Department of Ecology and Evolutionary Biology, New Haven, United States, (2)University of North Carolina Greensboro, Department of Biology, Greensboro, United States, (3)University of the Witwatersrand, Johannesburg, South Africa, (4)Princeton University, Department of Ecology & Evolutionary Biology, Princeton, United States, (5)Wake Forest University, Biology, Winston-Salem, NC, United States, (6)University of California Santa Barbara, Department of Ecology, Evolution, and Marine Biology, Santa Barbara, CA, United States, (7)University of Wyoming, Department of Zoology and Physiology, Laramie, United States, (8)Karatina University, Department of Natural Resources, Karatina, Kenya, (9)Syracuse University, Department of Biology, Syracuse, United States, (10)University of Florida, Department of Biology, Gainesville, United States, (11)South African Environmental Observation Network, Ndlovu Node, Phalaborwa, South Africa, (12)USDA ARS, Rangeland Resources and Systems Research Unit, Fort Collins, United States, (13)University of California Davis, Davis, CA, United States