Fire severity and ecosystem resilience – lessons from the Wombat Fire Effects Study (1984-2003)

  • Tolhurst K
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Abstract

The Wombat Fire Effects Study was established to address a number of questions in relation to the effects of repeated low-intensity fires in mixed species eucalypt forest in the foothills of Victoria. This study has now been going for 25 years and has included the study of understorey plants, fuels, bats, terrestrial mammals, reptiles, invertebrates, fungi, birds, soils, tree growth, fire behaviour and weather. This forest system has shown a high resilience to fire that is attributed here to the patchiness and variability in the fire characteristics within a fire and the relatively small proportion of the landscape being affected. A means of comparing the level of “injury” caused by low-intensity prescribed fire with high intensity wildfire is proposed so that the debate about leverage benefits (the reduction in wildfire area compared to the area of planned burning) can be more rational. There are some significant implications for assessing the relative environmental impacts of wildfire compared with the planned burning program being implemented in Victoria since the Victorian Bushfires Royal Commission recommendations (Teague et al. 2010).

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Tolhurst, K. G. (2012). Fire severity and ecosystem resilience – lessons from the Wombat Fire Effects Study (1984-2003). Proceedings of the Royal Society of Victoria, 124(1), 30. https://doi.org/10.1071/rs12030

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