Why the integration of demographic and site-based studies of disturbance is essential for the conservation of jarrah forest fauna

Wardell‐Johnson, Grant; Calver, Matthew; Saunders, Denis A.; Conroy, S.; Jones, Barbara

doi:10.7882/fs.2004.022

Cited by 17 publications

(14 citation statements)

References 67 publications

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“…North America and Australia : Bowman 1998) and with the arrival of new populations. For example, considerable changes in fire management have been noted in SW Australian forests during the 20th Century (Burrows and Wardell-Johnson 2003;Wardell-Johnson et al 2004). Whether anthropogenic climate change leads to new pyro-landscapes is not yet clear (see Cary 2002;Bowman et al 2009).…”

Section: Fire Generating Novel Life-history Traits and Syndromesmentioning

confidence: 99%

Landscape age and soil fertility, climatic stability, and fire regime predictability: beyond the OCBIL framework

Mucina

Wardell‐Johnson

2011

Plant Soil

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Hopper (Plant Soil 322:49-86, 2009) introduced landscape age, climate buffering, and soil nutrient status as descriptors for a continuum between old, climatically buffered landscapes characterised by low soil fertility (OCBIL) and young, often disturbed landscapes characterised by fertile soils (YODFEL). Hopper (Plant Soil 322:49-86, 2009) provided an important framework for biodiversity and conservation. We argue that Hopper's (Plant Soil 322:49-86, 2009) conceptual framework includes five areas worthy of further consideration. These include: (1) The appropriateness of the original three dimensions;(2) The need for deeper consideration of rejuvenation and disturbance within OCBILs. (3) Broadening the globally relevant range of environments. (4) Operationalising the definitions or dimensions. (5) Revisiting the scale and compatibility of the predictions. Here, we address the first four of these areas and offer an alternative conceptual framework based on the idea of Old Stable Landscapes (OSLs). We redefine Hopper's climate buffering as a dimension of climate stability, identify soil-impoverishment as a function of landscape age, and recognise fire regime predictability as a large-scale, long-term evolutionarily important dimension. In so doing, we construct a globallyrelevant, qualitative template to enable the testing of evolutionary-ecological hypotheses concerning biodiversity (e.g. species diversity, diversity gradients, endemism, speciation and extinction rates, cladogenesis, persistence of old lineages, refugial phenomena). Our template is characterised by having operationally defined dimensions, which can be used to design surveys and experiments to address the issues of biodiversity conservation, recovery, and restoration under variations in landscape age, climatic stability and fire regime.

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Section: Fire Generating Novel Life-history Traits and Syndromesmentioning

confidence: 99%

Landscape age and soil fertility, climatic stability, and fire regime predictability: beyond the OCBIL framework

Mucina

Wardell‐Johnson

2011

Plant Soil

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“…Jurskis 2000 with Benson and Redpath 1997). However, the position concerning fire history is complex, and it is likely that fire regimes have in the past differed between vegetation types, locations and regions (see Henderson and Keith 2002;Wardell-Johnson et al 2004). Recent literature, which provides anecdotal, rather than site-based survey data or experimental evidence, has not contributed to the development of fire regimes related to clear management objectives under current and likely future circumstances.…”

Section: Fire Regimesmentioning

confidence: 99%

A review of eucalypt dieback associated with bell miner habitat in south-eastern Australia

Wardell‐Johnson

Stone

Recher³

et al. 2005

Australian Forestry

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SummaryWe aim to assess current knowledge, and identify gaps in knowledge concerning bell-miner-associated dieback (BMAD) in south-eastern Australia. We review BMAD as a form of forest dieback, and bell miner and psyllid interrelations. We then consider indirect and direct causal factors associated with local functional scales (tree crown), and finally, indirect and direct causal factors associated with broader functional scales (forest stand and landscape processes). This paper emphasises published literature and is a summary of a more detailed report prepared for the BMAD working group which explicitly included personal communications with many researchers, managers and members of conservation groups and the timber industry. We conclude that BMAD is a significant threat to the sustainability of the moist eucalypt forests of north-eastern NSW and south-eastern Queensland, and to biodiversity conservation at a national scale. There are serious deficiencies in the information base for most BMAD issues. While there are clear interactions between bell miners and psyllids, there are many other, less well quantified interactions that may be of greater significance to the development of the problem. We suggest that management and research efforts towards solutions urgently target disturbances that lead to changes in forest canopy structure, but there is unlikely to be a single or simple management solution. An integrated management program will be necessary as concentration on particular management regimes in isolation is unlikely to resolve the BMAD problem because BMAD is associated with interacting disturbances.

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“…Recent population studies (Rhind 1996(Rhind , 1998 and impact experiments (Craig 1999;Morris et al 2000) confirmed mortality of some vertebrates during logging operations or changes in distribution and abundance in the short and medium term. The Western Ringtail Possum Pseudocheirus occidentalis may be the species most seriously impacted (Burrows et al 2001), while ground-dwelling mammals, some birds and terrestrial invertebrates appear either robust in the face of logging disturbances or adequately protected under current prescriptions (Craig 1999, Morris et al 2000, Strehlow et al 2002, Wardell-Johnson et al 2004. …”

Section: What Are the Consequences For Fauna Of Sustained Overcutting?mentioning

confidence: 99%

“…While the focus is on process, it is possible to have an Environmental Management System (e.g., ISO 14001 guidelines) that faithfully captures unsustainable environmental management (Geno 2001). For example, counting tree hollows may give the misleading impression that hollow-using fauna are secure, whereas monitoring of population trends in indicator taxa could reveal serious declines (McCarthy et al 1994, Wardell-Johnson et al 2004, see also the recommendations for monitoring in Abbott and Whitford 2002).…”

Section: Managerial Reformsmentioning

confidence: 99%

Sustained unsustainability? An evaluation of evidence for a history of overcutting in the jarrah forests of Western Australia and its consequences for fauna conservation

Calver

Wardell‐Johnson²

2004

Conservation of Australia's Forest Fauna

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Why the integration of demographic and site-based studies of disturbance is essential for the conservation of jarrah forest fauna

Cited by 17 publications

References 67 publications

Landscape age and soil fertility, climatic stability, and fire regime predictability: beyond the OCBIL framework

Landscape age and soil fertility, climatic stability, and fire regime predictability: beyond the OCBIL framework

A review of eucalypt dieback associated with bell miner habitat in south-eastern Australia

Sustained unsustainability? An evaluation of evidence for a history of overcutting in the jarrah forests of Western Australia and its consequences for fauna conservation

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