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As changing climate increases the likelihood of extreme events, fire regimes are expected to become more unpredictable. TRE projects looking to understand how fire regimes are changing, range from local to global scales and have looked at widespread changes to fire intervals following the Black Summer fires, changes to fire seasonality and interactions between fire severity and fire frequency. TRE has also undertaken projects aiming to investigate how changing fire regimes impact plant communities. This includes the impact of changing fire severity on threatened wet sclerophyll forest, namely Upland Basalt Eucalypt Forests of the Sydney Basin Bioregion and Sydney Turpentine-Ironbark Forest in the Sydney Basin Bioregion. This project has evolved in collaboration with the Australian Botanic Garden Mount Annan.

These pictures represent a side by side for differences in severity, a moderate to high severity and an extreme severity, there from Upland Basalt WSF in Mt Tomah 3 years after fire.

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