Saving imperiled grassland biomes by recoupling fire and grazing: a case study from the Great Plains
2022
Wilcox, Bradford P | Fuhlendorf, Samuel D | Walker, John W. | Twidwell, Dirac | Wu, X Ben | Goodman, Laura E | Treadwell, Morgan | Birt, Andrew
Woody plant encroachment – the conversion of open grasslands and savannas to woodlands – represents one of the gravest threats to grassland biomes worldwide. This is especially true for the Great Plains of the US. We contend that the widespread adoption of pyric herbivory (the synergistic application of fire and grazing) and mixed‐species grazing (cattle [Bos taurus] and goats [Capra spp]) would not only make grasslands and savannas more resilient to woody plant encroachment but would also enhance the profitability and resiliency of livestock production systems. These management strategies control woody plants, increase biodiversity, improve grassland ecosystem function, and favor livestock production. Although this management paradigm holds tremendous potential by mimicking original grassland disturbance regimes, it has not been widely adopted because of cultural constraints. Saving the remaining natural grasslands in the Great Plains and elsewhere will require a widespread shift in cultural norms – facilitated by targeted government incentives and a coordinated program of regional research, extension, and education that involves farmers and ranchers as key stakeholders.
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