Rainfall-Linked Megafires As Innate Fire Regime Elements in Arid
fevo-09-666241 July 5, 2021 Time: 15:55 # 1 ORIGINAL RESEARCH published: 05 July 2021 doi: 10.3389/fevo.2021.666241 Rainfall-Linked Megafires as Innate Fire Regime Elements in Arid Australian Spinifex (Triodia spp.) Grasslands Boyd R. Wright1,2,3*, Boris Laffineur4, Dominic Royé5, Graeme Armstrong6 and Roderick J. Fensham4,7 1 Department of Botany, School of Environmental and Rural Science, The University of New England, Armidale, NSW, Australia, 2 School of Agriculture and Food Science, University of Queensland, St. Lucia, QLD, Australia, 3 The Northern Territory Herbarium, Department of Land Resource Management, Alice Springs, NT, Australia, 4 Queensland Herbarium, Toowong, QLD, Australia, 5 Department of Geography, University of Santiago de Compostela, A Coruña, Spain, 6 NSW National Parks and Wildlife Service, Broken Hill, NSW, Australia, 7 School of Biological Sciences, University of Queensland, St. Lucia, QLD, Australia Edited by: Large, high-severity wildfires, or “megafires,” occur periodically in arid Australian spinifex Eddie John Van Etten, (Triodia spp.) grasslands after high rainfall periods that trigger fuel accumulation. Edith Cowan University, Australia Proponents of the patch-burn mosaic (PBM) hypothesis suggest that these fires Reviewed by: Ian Radford, are unprecedented in the modern era and were formerly constrained by Aboriginal Conservation and Attractions (DBCA), patch burning that kept landscape fuel levels low. This assumption deserves scrutiny, Australia as evidence from fire-prone systems globally indicates that weather factors are the Christopher Richard Dickman, The University of Sydney, Australia primary determinant behind megafire incidence, and that fuel management does not *Correspondence: mitigate such fires during periods of climatic extreme. We reviewed explorer’s diaries, Boyd R.
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