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  • 1
    Online Resource
    Online Resource
    CSIRO Publishing ; 2013
    In:  Australian Journal of Botany Vol. 61, No. 8 ( 2013), p. 622-
    In: Australian Journal of Botany, CSIRO Publishing, Vol. 61, No. 8 ( 2013), p. 622-
    Abstract: Habitat fragmentation is a key factor causing variation in important mating system parameters in plants, but its effect is variable. We studied mating system variation among 276 native trees from 37 populations of Eucalyptus pauciflora from Tasmania. We assayed 10 microsatellite loci from 1359 open-pollinated progeny from these trees. Across Tasmania the species’ mating system was characterised by a high outcrossing rate (tm = 0.90) but moderate bi-parental inbreeding (tm–ts = 0.16) and moderate correlated paternity (rP = 0.20) in comparison to other eucalypt species. Despite significant differences in outcrossing rate and correlated paternity among populations, this variation was not correlated with fragmentation. Nevertheless, fragmentation was inversely correlated with the number of germinants per gram of seed capsule content. Outcrossing rate had been reported previously to decrease with increasing altitude in mainland populations of E. pauciflora, but this was not the case in Tasmania. However, a small but significant decrease in correlated paternity occurred with increasing altitude and a decrease in bi-parental inbreeding with increasing altitude was evident in fragmented populations only. It is argued that strong, but incomplete self-incompatibility mechanisms may buffer the mating system from changes in population density and pollinators. While seed yields from highly fragmented populations were reduced, in most cases the seed obtained is unlikely to be more inbred than that from non-fragmented populations and, thus, is likely to be as suitable for use in local forest restoration.
    Type of Medium: Online Resource
    ISSN: 0067-1924
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2013
    detail.hit.zdb_id: 1496155-6
    SSG: 12
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  • 2
    In: Plants, MDPI AG, Vol. 11, No. 14 ( 2022-07-14), p. 1846-
    Abstract: With climate change impacting trees worldwide, enhancing adaptation capacity has become an important goal of provenance translocation strategies for forestry, ecological renovation, and biodiversity conservation. Given that not every species can be studied in detail, it is important to understand the extent to which climate adaptation patterns can be generalised across species, in terms of the selective agents and traits involved. We here compare patterns of genetic-based population (co)variation in leaf economic and hydraulic traits, climate–trait associations, and genomic differentiation of two widespread tree species (Eucalyptus pauciflora and E. ovata). We studied 2-year-old trees growing in a common-garden trial established with progeny from populations of both species, pair-sampled from 22 localities across their overlapping native distribution in Tasmania, Australia. Despite originating from the same climatic gradients, the species differed in their levels of population variance and trait covariance, patterns of population variation within each species were uncorrelated, and the species had different climate–trait associations. Further, the pattern of genomic differentiation among populations was uncorrelated between species, and population differentiation in leaf traits was mostly uncorrelated with genomic differentiation. We discuss hypotheses to explain this decoupling of patterns and propose that the choice of seed provenances for climate-based plantings needs to account for multiple dimensions of climate change unless species-specific information is available.
    Type of Medium: Online Resource
    ISSN: 2223-7747
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2704341-1
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  • 3
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2015
    In:  Tree Genetics & Genomes Vol. 11, No. 5 ( 2015-10)
    In: Tree Genetics & Genomes, Springer Science and Business Media LLC, Vol. 11, No. 5 ( 2015-10)
    Type of Medium: Online Resource
    ISSN: 1614-2942 , 1614-2950
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2015
    detail.hit.zdb_id: 2180926-4
    SSG: 12
    SSG: 23
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  • 4
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2015
    In:  Plant and Soil Vol. 397, No. 1-2 ( 2015-12), p. 93-102
    In: Plant and Soil, Springer Science and Business Media LLC, Vol. 397, No. 1-2 ( 2015-12), p. 93-102
    Type of Medium: Online Resource
    ISSN: 0032-079X , 1573-5036
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2015
    detail.hit.zdb_id: 1478535-3
    detail.hit.zdb_id: 208908-7
    SSG: 12
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  • 5
    Online Resource
    Online Resource
    Wiley ; 2021
    In:  Ecological Management & Restoration Vol. 22, No. S2 ( 2021-12), p. 3-10
    In: Ecological Management & Restoration, Wiley, Vol. 22, No. S2 ( 2021-12), p. 3-10
    Abstract: At the dawn of the Anthropocene, with the imminent threat of climate change delivering 3–4°C rise in temperature by the end of the century and biodiversity loss across the globe, restoration projects need to focus on re‐establishing connectivity in vegetation structure at a landscape scale to facilitate the movement of wildlife. To achieve this requires long‐term commitment, robust partnerships and planning and excellent planting technology underpinned by research. In this Special Issue, consisting of 15 papers, we present a multidisciplinary, multi‐institutional, science‐based approach to environmental restoration, focused on a single geographic region, the Midlands of Tasmania. This introductory paper describes the breadth of the material covered in the series and sets the scene for following papers by describing the Midlands, its geography, climate and history, its extraordinary natural values as a biodiversity hotspot, the degree of degradation that has resulted from 200 years of intensive farming and the objectives of the Midlands restoration project. The Midlands also offers opportunities as a model system for landscape scale restoration given it is a circumscribed region, heterogeneous in land forms and land uses. Furthermore, in land management, there is a high level of cooperation between land owners, government departments, environmental agencies and university researchers. We describe how the contributions from a wide range of disciplines can be focused to meet the challenges of ecological restoration in highly altered agricultural landscapes.
    Type of Medium: Online Resource
    ISSN: 1442-7001 , 1442-8903
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2020194-1
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  • 6
    In: Ecological Management & Restoration, Wiley, Vol. 22, No. S2 ( 2021-12), p. 47-60
    Abstract: There is an ongoing search for cost‐effective, practical and successful methods for landscape‐scale restoration required to meet the challenges posed by the United Nations Decade on Restoration 2021–2013. Mechanised cultivation techniques (rip mounding and Wilco spot cultivation), a range of revegetation strategies (dense reafforestation, riparian corridors, vegetation islets and scattered tree plantings) and best horticultural practice were employed to successfully establish extensive areas of local native trees and shrubs in highly altered agricultural landscapes within the Midlands of Tasmania, Australia. This region has been intensely farmed for the last 200 years and is characterised by past failures in native tree plantings. Between 2009 and 2018, 1800 ha were revegetated with a suite of hardy local native species to enhance, buffer and connect native vegetation remnants. These techniques were applied at a landscape scale to create biodiversity corridors that crossed the Midlands. Riparian corridors 100–200 m wide were created along 21 km of riverbank at an average density of 440 stems/ha. Fenced vegetation islets and individually caged scattered trees were established within and surrounding native vegetation remnants, at an average density of 143 stems/ha. Whole paddocks were densely reafforested at up to 800 stems/ha. Despite this, re‐establishing structurally complex and species diverse native vegetation, which can provide habitat for local native animals, proved challenging. In areas highly altered by a long history of farming, repeated interventions and long‐term relationships with landholders will be needed to achieve restoration objectives.
    Type of Medium: Online Resource
    ISSN: 1442-7001 , 1442-8903
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2020194-1
    SSG: 12
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  • 7
    Online Resource
    Online Resource
    Wiley ; 2021
    In:  Ecological Management & Restoration Vol. 22, No. S2 ( 2021-12), p. 61-64
    In: Ecological Management & Restoration, Wiley, Vol. 22, No. S2 ( 2021-12), p. 61-64
    Abstract: Estimates of dry biomass and carbon sequestration were made for environmental plantings established in the harsh, dry agricultural landscapes of the Midlands of Tasmania. Plantings were designed to provide habitat connectivity for native wildlife. The dry biomass for 6‐year‐old woodland and riparian plantings was estimated to be 4.7 and 9.0 tonnes/ha, respectively. The carbon component of this biomass was estimated to be 2.4 and 4.5 tonnes/ha carbon, equivalent to 8.7 and 16.5 tonnes/ha carbon dioxide (CO 2 ) sequestered, respectively. These are lower than previous estimates for plantings of the same age in the same landscape. This is largely due to lower planting densities of 200 stems/ha, and 883 stems/ha respectively, for woodland and riparian plantings, relative to comparable plantings (˜1,000 stems/ha). Further, a combination of extreme climatic events during early establishment and high heterogeneity in soil type and landscape position reduced performance in riparian plantings.
    Type of Medium: Online Resource
    ISSN: 1442-7001 , 1442-8903
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2020194-1
    SSG: 12
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  • 8
    In: Ecological Management & Restoration, Wiley, Vol. 22, No. S2 ( 2021-12), p. 127-139
    Abstract: The benefits of using remote sensing technologies for informing and monitoring ecological restoration of forests from the community to the individual are presented. At the community level, we link remotely sensed measures of structural complexity with animal behaviour. At the plot level, we monitor the return of vegetation structure and ecosystem services (e.g. carbon sequestration) using data‐rich three‐dimensional point clouds. At the individual‐level, we use high‐resolution images to accurately classify plants to species and provenance and show genetic‐based variation in canopy structural traits. To facilitate the wider use of remote sensing in restoration, we discuss the challenges that remain to be resolved.
    Type of Medium: Online Resource
    ISSN: 1442-7001 , 1442-8903
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2020194-1
    SSG: 12
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  • 9
    In: Soil Research, CSIRO Publishing, Vol. 55, No. 7 ( 2017), p. 692-
    Abstract: Revegetation of exposed wastes at historically abandoned mines is frequently constrained by inherent characteristics of poorly developed and contaminated soils. We tested whether the establishment of seedlings on 85-year-old arsenic rich tailings deposits at an abandoned tin mine in north-east Tasmania was limited by toxicity, nutrient limitation or structural factors. We conducted soil analyses, and tested growth of six native species in pot studies utilising both fertiliser treatments and a replacement series involving tailings and potting medium. An in situ three-year field trial was also conducted to assess the effects of adding sand, compost and biochar on plant growth and water infiltration. Analyses of the tailings identified a finely laminated structure and potential manganese, magnesium and potassium deficiencies. There was no evidence of microbial inhibition or adverse metals toxicity, pH or salinity effects. The pot trial indicated nutrient limitation acting on each of the species tested. Physical amendment within the field trial resulted in a highly significant and sustained improvement in infiltration rate, as well as improved growth in three of the six species tested. We conclude that the correction of nutritional and physical deficiencies in surface soils should overcome limitations to the early establishment of native seedlings at this site. This study shows that systematic site assessment and targeted trials is a valuable first step in the revegetation of previously recalcitrant sites.
    Type of Medium: Online Resource
    ISSN: 1838-675X
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2017
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  • 10
    Online Resource
    Online Resource
    Elsevier BV ; 2012
    In:  Forest Ecology and Management Vol. 269 ( 2012-4), p. 229-238
    In: Forest Ecology and Management, Elsevier BV, Vol. 269 ( 2012-4), p. 229-238
    Type of Medium: Online Resource
    ISSN: 0378-1127
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2012
    detail.hit.zdb_id: 2016648-5
    detail.hit.zdb_id: 751138-3
    SSG: 23
    SSG: 12
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