Conservation Ecology of Australian Mammals

Australia’s mammalian fauna is distinguished by a high degree of endemism and by ecological specialisations that have evolved in isolation over millions of years. These species now face a confluence of threats, including habitat loss and fragmentation, invasive predators, altered fire regimes and the impacts of climate change. Contemporary conservation ecology integrates spatially explicit threat mapping, studies of threat interactions and novel approaches to species recovery such as translocations and rewilding. Evidence shows that invasive cats and foxes drive declines where ground cover is reduced by inappropriate fire or grazing, while invasive plants and land-use change fragment habitat and undermine connectivity. Consumption-based analyses reveal how external markets and infrastructure development export extinction risk beyond Australia’s borders, underscoring the global dimension of domestic policy. At the same time, research into ecological refugia and landscape mosaics highlights the potential for targeted fire management and the retention of long-unburnt patches to sustain mammal populations. A continental-scale perspective that accounts for historical range contraction, shifting baselines and biogeographic variation is essential for prioritising interventions and building resilience. The practical applications of this work extend from improved legislative frameworks and community stewardship programmes to on-ground actions such as invasive-species control, strategic burning and carefully planned reintroductions. By blending rigorous data analysis with adaptive management, conservation ecology in Australia offers a model for safeguarding threatened mammal communities in other fire-prone and highly threatened regions.

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Conservation Ecology of Australian Mammals publication trend

The graph below shows the total number of articles in conservation ecology of australian mammals across all publications each year (not limited to Nature Index journals).

Technical terms

Extinction-risk footprint: Quantitative measure linking human consumption or activities to the likelihood of species extinction.

Shifting baseline syndrome: Gradual acceptance of environmental degradation as the new norm, leading to underestimation of historical biodiversity.

Potential refugee species: Species whose current range represents only a subset of their former ecological niche, indicating priority candidates for reintroduction.

Pyrodiversity: The complexity and variety of fire regimes across a landscape, generated by differing fire frequencies, intensities and patterns.

References

1. A consumption‐based analysis of extinction risk in Australia. Conservation Letters (2023).
2. Continental‐scale identification and prioritisation of potential refugee species; a case study for rodents in Australia. Ecography (2024).
3. Interactions among threats affect conservation management outcomes: Livestock grazing removes the benefits of fire management for small mammals in Australian tropical savannas. Conservation Science and Practice (2019).