Cause and effects of a megafire in sedge-heathland in the Tasmanian temperate wilderness

A megafire in Tasmania's World Heritage-listed wilderness, the Giblin River fire of 2013, revealed that time since fire is the dominant driver of severity in sedge-heathland ecosystems. The study found high mortality rates for both main stems (98%) and whole plants (91%), with limited resprouting capacity (16% of dead stems). Fire severity had minimal impact on resprouting or seedling establishment, suggesting resilience in these processes. Prescribed burning was shown to be effective in reducing wildfire extent and severity, as the fire self-extinguished at the boundary of a management burn area. This highlights its potential for maintaining landscape heterogeneity and mitigating future megafires.

French, B. J., Prior, L. D., Williamson, G. J., & Bowman, D. M. J. S. (2016). Cause and effects of a megafire in sedge-heathland in the Tasmanian temperate wilderness. Australian Journal of Botany, 64(6), 513–525. https://doi.org/10.1071/bt16087