Nick Gellie

Nick Gellie
University of Adelaide · Faculty of Sciences

PhD

About

21
Publications
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759
Citations

Publications

Publications (21)
Article
Full-text available
Replanting native vegetation is a broadly accepted method for restoring degraded landscapes. Traditionally, seed used for restoration has been locally sourced to avoid introducing maladapted plants and to minimize the risk of outbreeding depression. However local adaptation is not universal and is disrupted by, for example, climate change and habit...
Article
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Ecological restoration is a globally important and well-financed management intervention used to combat biodiversity declines and land degradation. Most restoration aims to increase biodiversity towards a reference state, but there are concerns that intended outcomes are not reached due to unsuccessful interventions and land use legacy issues. Moni...
Article
Vast areas of degraded land have proliferated worldwide. In response to this transformation, ambitious targets have been set to restore degraded ecosystems, such as the the Bonn Challenge, which aims to restore 350 million ha of forestland by 2030. Achieving such goals will require a larger evidence base of restoration studies, which could be reali...
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Our study quantified the global tree restoration potential and its associated carbon storage potential under existing climate conditions. We received multiple technical comments, both supporting and disputing our findings. We recognize that several issues raised in these comments are worthy of discussion. We therefore provide a detailed common answ...
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Full-text available
A relatively unaccounted ecosystem service from biodiversity is the benefit to human health via symbiotic microbiota from our environment. This benefit occurs because humans evolved alongside microbes and have been constantly exposed to diverse microbiota. Plants and animals, including humans, are organised as a host with symbiotic microbiota, whos...
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The United Nations heralded 2021–2030 as the UN Decade on Ecosystem Restoration. A socio‐ecological approach to restoration has been proposed that honours the diversity in ecological landscapes and their respective cultures and peoples with the goal of repairing degraded ecosystems. Indigenous Peoples are intimately interconnected with landscapes,...
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Restoration interventions such as revegetation are globally-important to combat biodiversity declines and land degradation. However, restoration projects are generally poorly monitored because current approaches to monitoring are limited in their ability to assess important components of biodiversity, such as belowground microbial diversity. Since...
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Many non‐communicable diseases are linked to degraded diversity in the human and environmental microbiota and are rising globally in epidemic proportions in industrialized urban populations. Reducing this disease burden may be aided by the ecological restoration of microbiota and their habitat in urban green spaces – a process termed microbiome rew...
Article
Growing epidemiological evidence links natural green space exposure with a range of health benefits, including for mental health. Conversely, greater urbanisation associates with increased risk of mental health disorders. Microbiomes are proposed as an important but understudied link that may help explain many green space-human health associations....
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Large-scale restoration efforts are underway globally to mitigate the impact of decades of land degradation by returning functional and biodiverse ecosystems. Revegetation is a heavily relied upon restoration intervention, and one that is expected to result in associated biodiversity returns. However, the outcome of such restoration interventions r...
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Billions of hectares of natural ecosystems have been degraded through human actions. The global community has agreed on targets to halt and reverse these declines, and the restoration sector faces the important but arduous task of implementing programmes to meet these objectives. Existing and emerging genomics tools offer the potential to improve t...
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Understanding how microbial communities change with environmental degradation and restoration may offer new insights into the understudied ecology that connects humans, microbiota, and the natural world. Immunomodulatory microbial diversity and ‘Old Friends’ are thought to be supplemented from biodiverse natural environments, yet deficient in anthr...
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Intraspecific plant functional trait variation provides mechanistic insight into persistence and can infer population adaptive capacity. However, most studies explore intraspecific trait variation in systems where geographic and environmental distances co-vary. Such a design reduces the certainty of trait-environment associations, and it is imperat...
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Selecting the geographic origin (the provenance) of seed is a key decision in restoration. The last decade has seen a vigorous debate on whether to use local or non-local seed. The use of local seed has been the preferred approach as it is expected to maintain local adaptation and avoid deleterious population effects (e.g. maladaptation, outbreedin...
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Restoration aims to return ecosystem services, including the human health benefits of exposure to green space. The loss of such exposure with urbanization and industrialization has arguably contributed to an increase in human immune dysregulation. The Biodiversity and Old Friends hypotheses have described the possible mechanisms of this relationshi...
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To investigate the relationships between species attributes and genetic parameters in Australian plant species and to determine the associations in relation to predictions from population theory and previous global analyses. Continent of Australia. We assembled a dataset of all known population genetic analyses of Australian plants based on neutral...
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Intra-species variation in specific leaf area (SLA) and leaf area (LA) provides mechanistic insight into the persistence and function of plants, including their likely success under climate change and their suitability for revegetation. We measured SLA and LA in 101 Australian populations of the perennial shrub Dodonaea viscosa (L.) Jacq. subsp. an...
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Full-text available
Huge investments are fed into repairing the world's degraded land, placing unparalleled pressure on delivering large quantities of quality seed. One of the most pressing issues is to identify which region to collect seed from and specifically whether local seed has a home-site advantage, particularly given the pressures of climate change. Recent th...
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Artesian springs of arid inland Australia provide permanent water that supports naturally fragmented wetland communities. Some plant species that occur at springs have more extensive populations in coastal wetland areas of Australia where they may experience quite different environmental conditions. The present study investigated the growth respons...

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