The extent and pattern of Eucalyptus regeneration in an agricultural landscape
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Weinberg, Anthony; Gibbons, Philip; Briggs, Sue Victoria; Bonser, S P
Description
The process of natural regeneration is critical for sustaining remnant native vegetation and the ecosystem services it supports. We quantified the extent and pattern of Eucalyptus regeneration within remnant vegetation in a fragmented agricultural landscape in south-eastern Australia. Eucalyptus regeneration was absent at 42% of sites. Using an information-theoretic approach, we explored 13 possible models of Eucalyptus regeneration across multiple scales. The explanatory variables in the four...[Show more]
dc.contributor.author | Weinberg, Anthony | |
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dc.contributor.author | Gibbons, Philip | |
dc.contributor.author | Briggs, Sue Victoria | |
dc.contributor.author | Bonser, S P | |
dc.date.accessioned | 2015-12-10T23:25:16Z | |
dc.identifier.issn | 0006-3207 | |
dc.identifier.uri | http://hdl.handle.net/1885/67559 | |
dc.description.abstract | The process of natural regeneration is critical for sustaining remnant native vegetation and the ecosystem services it supports. We quantified the extent and pattern of Eucalyptus regeneration within remnant vegetation in a fragmented agricultural landscape in south-eastern Australia. Eucalyptus regeneration was absent at 42% of sites. Using an information-theoretic approach, we explored 13 possible models of Eucalyptus regeneration across multiple scales. The explanatory variables in the four models with empirical support (and their summed Akaike weights) were: grazing intensity (1.0), native ground cover (0.99), remnant area (0.83), tenure (0.67), canopy cover (0.21) and vegetation type (0.11). Averaging across these four models we predicted that the probability of Eucalyptus regeneration was highest (0.95) in relatively unmodified remnant native vegetation, that is, remnant vegetation on public land where grazing was light and the understorey was dominated by native plants. In contrast, the predicted probability of Eucalyptus regeneration was lowest (0.12) in small remnants on private land where grazing was heavy. Our results suggest that a large proportion of all remnant native vegetation in this landscape will disappear under existing land management and farming practices. Reducing grazing pressure within intensively grazed remnants appears to be the single most effective management intervention that will mitigate this threat. This will require a shift in conservation priorities away from large, intact remnants where regeneration does not appear to be affected, to poorer quality remnants-often small remnants or scattered trees-where regeneration is typically absent. | |
dc.publisher | Elsevier | |
dc.source | Biological Conservation | |
dc.subject | Keywords: agricultural land; dominance; evergreen tree; grazing pressure; landscape; native species; prioritization; regeneration; understory; vegetation type; woodland; Australia; Eucalyptus Agri-environmental; Australia; Box gum grassy woodland; Grazing; Paddock trees; Prioritisation; Scattered trees; Threat | |
dc.title | The extent and pattern of Eucalyptus regeneration in an agricultural landscape | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 144 | |
dc.date.issued | 2011 | |
local.identifier.absfor | 050205 - Environmental Management | |
local.identifier.ariespublication | f2965xPUB1477 | |
local.type.status | Published Version | |
local.contributor.affiliation | Weinberg, Anthony, University of New South Wales | |
local.contributor.affiliation | Gibbons, Philip, College of Medicine, Biology and Environment, ANU | |
local.contributor.affiliation | Briggs, Sue Victoria, NSW Department of Environment, Climate Change and Water (C/- CSIRO) | |
local.contributor.affiliation | Bonser, S P , University of New South Wales | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 1 | |
local.bibliographicCitation.startpage | 227 | |
local.bibliographicCitation.lastpage | 233 | |
local.identifier.doi | 10.1016/j.biocon.2010.08.020 | |
local.identifier.absseo | 960804 - Farmland, Arable Cropland and Permanent Cropland Flora, Fauna and Biodiversity | |
dc.date.updated | 2016-02-24T08:14:22Z | |
local.identifier.scopusID | 2-s2.0-78751569773 | |
local.identifier.thomsonID | 000287168100024 | |
Collections | ANU Research Publications |
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