Eucalypt dieback in eastern Australia: a simple model

Jurskis, Vic; Turner, John

doi:10.1080/00049158.2002.10674859

Cited by 52 publications

(63 citation statements)

References 34 publications

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“…MacPherson, 1886;Norton, 1887;Landsberg and Wylie, 1988;Reid and Yan, 2000;Jurskis and Turner, 2002). The first wave during the late 19th century followed the initial agricultural development by settlers.…”

Section: Suggested Causes Of Tree Declinementioning

confidence: 97%

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Eucalypt decline in Australia, and a general concept of tree decline and dieback

Jurskis¹

2005

Forest Ecology and Management

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137

105

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Section: Suggested Causes Of Tree Declinementioning

confidence: 97%

“…Alternatively, these and other declines in Australia have been attributed to changes in biogeochemical cycles as a result of unnatural fire regimes (e.g. Mount, 1969;Ellis and Pennington, 1992;Jurskis and Turner, 2002).…”

Section: Suggested Causes Of Tree Declinementioning

confidence: 97%

Eucalypt decline in Australia, and a general concept of tree decline and dieback

Jurskis¹

2005

Forest Ecology and Management

Self Cite

137

105

View full text Add to dashboard Cite

“…Raison 1979;Adams and Attiwill 1986;Smith and Smith 1990;Ellis and Pennington 1992;Jurskis and Turner 2002). There is general agreement that the establishment of a dense shrubby understorey contributes to lowering the carbon/nitrogen (C/N) ratio, and to increased nitrogen mineralisation (e.g.…”

Section: Soil Nutrientsmentioning

confidence: 99%

“…Limiting the tendency towards nitrification may provide a mechanism for facilitating the dominance by eucalypts in frequently burnt sites that are otherwise favourable to nitrophilic species (including mesic understorey species and rainforest trees - Ellis and Pennington 1989;Jurskis and Turner 2002). In establishing eucalypt plantations, any other dominant plant species present, including grasses, compete with the eucalypts (e.g.…”

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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“…For example, fire suppression (Close et al 2009), bell-miner activities (Stone 1996), climate change (Allen et al 2010), and Phytophthora cinnamomi 'dieback' (Shea et al 1983;Tippett et al 1985) are all factors linked to tree declines. The slow progressive death of trees results in highly visible symptoms (Stone 1999), including the death of the upper portions of the tree foliage and loss of tree branches, resulting in an overall reduction in crown density (Stone 1999;Jurskis and Turner 2002;Jurskis 2005;Carnegie 2007;Davidson et al 2007;Robinson 2008;Whitford et al 2008). These changes in tree condition are likely to affect the activities of some bird guilds.…”

Section: Introductionmentioning

confidence: 99%

Do woodland birds prefer to forage in healthy Eucalyptus wandoo trees?

et al. 2013

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Globally, many forests and woodlands are in decline. The marked loss of canopy foliage typical of these declines results in reduced foraging resources (e.g. nectar, pollen, and insects) and, subsequently, can reduce habitat quality for woodland birds. In south-west Western Australia, patches of Eucalyptus wandoo woodlands have shown a decline in condition since at least 2002. We investigated how changes in E. wandoo condition affect the woodland bird community. Foraging activities of three bird species were recorded for 20 sites in Dryandra State Forest and Wandoo Conservation Park either by conducting watches on focal trees ('sitting' method), or following individuals through the woodland ('following' method). Condition assessments of trees used by the birds were compared with those for trees available at the study site. Weebills (Smicrornis brevirostris; canopy insectivore) displayed preference for healthy trees (low amounts of canopy dieback), whereas rufous treecreepers (Climacteris rufa; bark-foraging insectivore) preferred trees with a higher proportion of dead branches. Yellowplumed honeyeaters (Lichenostomus ornatus; insectivore/nectarivore) foraged in older, larger E. wandoo trees having full canopies with few signs of tree decline. Tree declines, such as that happening in E. wandoo, alter the foraging resources and habitat available to woodland birds.Additional keywords: foraging resources, habitat, tree condition, tree decline. (Watson et al. 2004b;Doerr et al. 2011). Climate change, land clearing, agriculture, and tree decline alter the woodlands and foraging resources for many guilds of birds, through alteration in the habitat quality and resources. Changes in habitat and foraging resources can alter the foraging behaviour and activity of birds (Calver and Dell 1998;Ford et al. 2001;McGinness et al. 2010;Doerr et al. 2011;Ford 2011). For example, landscape alteration and a lack of connectivity between remaining fragments of native vegetation specifically restricts the foraging movement and behaviour of the brown treecreeper (Climacteris picumnus) in New South Wales (Doerr et al. 2011). On the other hand, the et al. 2010), and Phytophthora cinnamomi 'dieback' (Shea et al. 1983;Tippett et al. 1985) are all factors linked to tree declines. The slow progressive death of trees results in highly visible symptoms (Stone 1999), including the death of the upper portions of the tree foliage and loss of tree branches, resulting in an overall reduction in crown density (Stone 1999;Jurskis and Turner 2002;Jurskis 2005;Carnegie 2007;Davidson et al. 2007;Robinson 2008;Whitford et al. 2008). These changes in tree condition are likely to affect the activities of some bird guilds. For example, a study investigating the role of tuart (Eucalyptus gomphocephala) decline on birds identified that some feeding guilds may benefit from tree decline and the associated changes in resources, while other guilds are disadvantaged (Wentzel 2010). Long-term tree declines are, therefore, likely to result in changes in avifaunal di...

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Eucalypt dieback in eastern Australia: a simple model

Cited by 52 publications

References 34 publications

Eucalypt decline in Australia, and a general concept of tree decline and dieback

Eucalypt decline in Australia, and a general concept of tree decline and dieback

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

Do woodland birds prefer to forage in healthy Eucalyptus wandoo trees?

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