Andrew J. Denham

Potential predation impacts of invasive non-native rodents (black rats) on plant species from a Pacific Island (Lord Howe Island, Australia)

Tony D. Auld, Ian Hutton, Mark G. Tozer, John Porter et autres

Context Invasive non-native rodents pose a significant threat to a range of plants on oceanic islands, particularly where there are high levels of endemism. Aims On Lord Howe Island in the western Pacific Ocean, prior to rodent eradication measures, we used selective …

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Remotely Sensed Fire Heterogeneity and Biomass Recovery Predicts Empirical Biodiversity Responses

Rebecca Kate Gibson, Don A. Driscoll, Kristina J. Macdonald, Grant James Williamson et autres

ABSTRACT Aim To compare field‐based evidence of plant and animal responses to fire with remotely sensed signals of fire heterogeneity and post‐fire biomass recovery. Location South‐eastern Australia; New South Wales. Time Period 2019–2022. Major Taxa Studied A total of 982 species of …

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Fire ecology database for documenting plant responses to fire events in Australia

José Rafael Ferrer-Paris, Ada Sánchez‐Mercado, William K. Cornwell, Mark K. J. Ooi et autres

An understanding of fire-response traits is essential for predicting how fire regimes structure plant communities and for informing fire management strategies for biodiversity conservation. Quantification of these traits is complex, encompassing several levels of data abstraction scaling up from field observations of …

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Biodiversity impacts of the 2019–2020 Australian megafires

Don A. Driscoll, Kristina J. Macdonald, Rebecca Kate Gibson, Tim S. Doherty et autres

With large wildfires becoming more frequent1,2, we must rapidly learn how megafires impact biodiversity to prioritize mitigation and improve policy. A key challenge is to discover how interactions among fire-regime components, drought and land tenure shape wildfire impacts. The globally unprecedented3,4 2019–2020 …

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Severe and Short Interval Fires Rearrange Dry Forest Fuel Arrays in South-Eastern Australia

Christopher E. Gordon, Rachael H. Nolan, Matthias M. Boer, Eli Ryan Bendall et autres

Fire regimes have shaped extant vegetation communities, and subsequently fuel arrays, in fire-prone landscapes. Understanding how resilient fuel arrays are to fire regime attributes will be key for future fire management actions, given global fire regime shifts. We use a network of …

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Genetic assessment of the value of restoration planting within an endangered eucalypt woodland

Natalie L. Rosser, Anthony M. Quinton, Huw Davey, David J. Ayre et autres

Abstract Assessment of woodland restoration often focusses on stand demographics, but genetic factors likely influence long-term stand viability. We examined the genetic composition of Yellow Box (Eucalyptus melliodora) trees in endangered Box-Gum Grassy Woodland in SE Australia, some 30 years after planting …

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Isolation and Lack of Potential Mates may Threaten an Endangered Arid-Zone Acacia

Cairo N. Forrest, David G. Roberts, Andrew J. Denham, David J. Ayre

Clonality may provide reproductive assurance for many threatened plants while limiting sexual reproductive success either through energetic tradeoffs or because clones are self-incompatible. Most stands of the Australian arid-zone plant Acacia carneorum, flower annually but low seed set and an absence of …

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Do mass flowering agricultural species affect the pollination of Australian native plants through localised depletion of pollinators or pollinator spillover effects?

Amy‐Marie Gilpin, Andrew J. Denham, David J. Ayre

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Are there magnet plants in Australian ecosystems: Pollinator visits to neighbouring plants are not affected by proximity to mass flowering plants

Amy‐Marie Gilpin, Andrew J. Denham, David J. Ayre

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Fire severity drives variation in post-fire recruitment and residual seed bank size of Acacia species

Harrison D. Palmer, Andrew J. Denham, Mark K. J. Ooi

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Long term conservation in an arid acacia shrubland is driven by the interaction of fire and grazing

Tony D. Auld, Andrew J. Denham, Michelle R. Leishman

ConclusionsSuccessful native mammal reintroduction programs mean that we have been able to revisit long-held paradigms around seed predation.As a result, the evidence is growing that mammals were once significant seed predators in arid and semi-arid Australia, and there are broad implications of …

Clonality disguises the vulnerability of a threatened arid zone Acacia

David G. Roberts, Cairo N. Forrest, Andrew J. Denham, David J. Ayre

Abstract Long‐lived, widespread plant species are expected to be genetically diverse, reflecting the interaction between large population sizes, overlapping generations, and gene flow. Such species are thought to be resilient to disturbance, but may carry an extinction debt due to reproductive failure. …

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