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Across much of southern Africa’s savanna wildernesses, wildfires burn unchecked. This is particularly true in the woodland savannas of northern Botswana, where wildfires originate outside of management activities, and are left to burn uncontrolled, because of limited resources and remoteness. There is concern that severe annual wildfires are resulting in the ‘savannisation’ of large tracts of wooded land across forest reserves, protected areas and surrounding wilderness areas. Because the current fire regime is unknown, management interventions are hard to introduce. We examine the recent 20-year (2001–2020) fire history in northern Botswana using MODIS satellitederived fire products to reveal fire frequency and seasonality. Six wildfire hotspots are identified for exploration of fire frequency and possible origins. Annual fire frequencies are far higher than would be expected without anthropogenic ignition. Extensive areas in some hotspots are shown to have burned between 14 and 16 out of the 20-year period. Fires peak in September, several weeks before the onset of the rainy season and associated lightning strikes, and when the fuel load is at its maximum and conditions at their driest. Adaptive fire management practices, such as those being followed in neighbouring South Africa and elsewhere should inform Botswana’s fire management policies.

Too much, too late: fires and reactive wildfire management in northern Botswana’s forests and woodland savannas