Most reserves had a declining trend of unburnt vegetation (66% of reserves), an increasing trend of recently burnt vegetation (56%), and an increasing trend of fire frequency (60%; SI Appendix , Table S3 A ) between 1980 and 2021.
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Shifting fire regimes cause continent-wide transformation of threatened species habitat.
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Negative values of the change coefficient indicate a decreasing trend over time and positive values represent an increasing trend ( SI Appendix ).