{"title":"Native establishment improved and weed competition reduced by topsoil removal in direct-sown native grasslands","authors":"Paul Gibson-Roy, John Delpratt, Greg Moore","doi":"10.1111/emr.12595","DOIUrl":"10.1111/emr.12595","url":null,"abstract":"<div>\u0000 \u0000 <p>Australian temperate grasslands are among its most threatened plant communities. In agricultural landscapes, major barriers to their recovery are high soil nutrient levels that favour the growth of exotic pasture and other non-native species, high standing weed biomass creating fierce aboveground competition, and rich weed seed and bud banks providing dense emergent seedling competition. Therefore, the return of grasslands to arable landscapes through restoration must rely on overcoming these challenges, ideally by reducing soil nutrients and mitigating the effects of weeds. This study demonstrates the effectiveness of topsoil removal for restoring diverse native grassy communities by direct seeding on sites with a legacy of elevated soil nutrients and competitive exotic vegetation. Conversely, it showed that repeated shallow cultivation (four times over 12 months) to stimulate weed emergence, followed each time by herbicide application, failed to achieve this outcome, at least in the short term (three years). Grassy community restoration is imperative in Australia, but importantly, it must utilise restoration protocols that are as effective as possible so that limited time, money, and resources are not wasted. In this light, the technique of topsoil manipulation may take us one step closer to achieving this goal in agricultural locations, where their loss is most pronounced.</p>\u0000 </div>","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 1","pages":"68-82"},"PeriodicalIF":1.5,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140625756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Browsing impacts on seedling survival of Black Box (Eucalyptus largiflorens)","authors":"Claire Moxham, Sally A. Kenny","doi":"10.1111/emr.12598","DOIUrl":"10.1111/emr.12598","url":null,"abstract":"<div>\u0000 \u0000 <p>Black Box (<i>Eucalyptus largiflorens</i> F. Muell) is a dominant floodplain tree across the Murray-Darling Basin. At Hattah-Kulkyne National Park (northwest Victoria), historical changes in the hydrological regime and land use have degraded Black Box populations, with the majority of trees in poor health and with limited recruitment. To mitigate this threat, environmental watering has been implemented to improve condition, but successful regeneration has been limited. A 17-month trial (April 2021 to September 2022) was undertaken to evaluate the effectiveness of different management techniques in promoting Black Box regeneration (natural regeneration, seed-scattering, tube stock and browsing control: guarded and unguarded tube stock). At the end of the trial, only four of the initial 63 seedlings remained alive (two guarded tube stock and two natural regeneration). Most seedling death was attributed to browsing (likely kangaroos), which was evident in the first three months, with unguarded plants heavily impacted. No germinants were recorded in the seed—scattering plots. Our findings of high browsing impacts on Black Box seedling survival, corroborates existing data on browsers (abundance levels and management thresholds) and emphasises the importance of incorporating herbivore browsing management in floodplain vegetation management strategies that aim to promote regeneration within Hattah-Kulkyne National Park.</p>\u0000 </div>","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 1","pages":"32-36"},"PeriodicalIF":1.5,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140609154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Structural and functional indicators in freshwater ecosystem monitoring programs","authors":"Wing Chun Derek Cheung, Ryan M. Burrows","doi":"10.1111/emr.12599","DOIUrl":"10.1111/emr.12599","url":null,"abstract":"<p>Ecosystem function is a foundational part of ecosystem health, but it is often neglected in the practice of ecosystem monitoring. We conducted a review of freshwater ecosystem management literature, analysing 60 documents across multiple organisations to understand the prevalence of function in conceptualisations and measures of ecosystem health. Only 28% (<i>n</i> = 13) of analysed documents included definitions of waterway health that included function, and only 30% (<i>n</i> = 18) integrated function into their conceptualisations of waterway health. More generally, we observed noticeable deviation in analysed documents from management best practices advocated for by contemporary ecosystem science – including unclear rationales, vague language, and imprecise metrics for assessing waterway health. We discuss these findings in broader ecosystem management contexts. Our findings support previous observations of a strong structural bias in current ecosystem health monitoring and suggest the need for closer examinations into the processes and rationales by which such an important factor could be absent from monitoring programs.</p>","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 1","pages":"3-13"},"PeriodicalIF":1.5,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/emr.12599","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140581305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Indices for ecological condition of native vegetation: A review, and introducing the HH2.0 method","authors":"Graeme S. Lorimer","doi":"10.1111/emr.12601","DOIUrl":"10.1111/emr.12601","url":null,"abstract":"<div>\u0000 \u0000 <p>The concept of using a single index to encapsulate the ‘ecological condition’ or ‘quality’ of native vegetation is reviewed and critiqued, along with the history of the adoption of such indices by governments at the State and Federal levels in Australia. Despite the value judgements inherent in such a concept, these indices provide a currency that is useful for comparing sites for purposes such as to provide a nexus between vegetation proposed to be removed under permit and other vegetation that will be protected or improved as an ‘offset’. The oldest of the reviewed indices – Habitat Hectares, from the Victorian Government – has been the subject of more scrutiny than others but there has been negligible change to it in response to recommendations made. A recommendation of particular significance is for values of the index to respond smoothly to changes in continuously variable observables like foliage cover, rather than discretising the data into broad class intervals. The step-wise jumps in index values that result from discretisation can have the effects of creating false indications of difference between sites or over time and masking actual differences. The index's value for monitoring change is thereby impaired. The Biodiversity Assessment Method of New South Wales is the only index reviewed here that avoids discretisation. However, many of the other recommendations that have been made for changes to Habitat Hectares were adopted in 2003 for a simplified variant of that method – the ‘Land manager self-assessment method’. Therefore, this variant has been used as the basis for a new index – HH2.0 – that retains the simplifications but does not discretise continuous variables or allocate scores in a step-wise manner. The process of translating field observations into scores is automated by a Microsoft Excel workbook, saving time and reducing human error. HH2.0 will suit landowners, land managers, local government and regional authorities, for non-regulatory purposes such as determining what planning protection to apply to an area or prioritising vegetation management among different areas. It requires significantly less gathering of field data than Habitat Hectares, but like that method, it places weight on vegetation's similarity to a long-undisturbed state. No restriction is made on whether it is applied to plots of specified size or shape. A pre-existing set of observational data has been used to retrospectively determine scores under HH2.0 and compare them with Habitat Hectares scores. The data came from 37 sites spanning a range of vegetation types and ecological condition. The root-mean-square difference between the two methods' scores is 5.1 points (out of a theoretical maximum of 100). For reference, Tolsma and Newell (2003) concluded that a difference of 20 points between two Habitat Hectares assessments cannot be relied upon to indicate a genuine difference in ecological condition. A larger data set would ","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 2","pages":"139-150"},"PeriodicalIF":1.9,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140581377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Does the NSW vegetation integrity assessment underestimate the conservation values of derived native grasslands?","authors":"Josh Dorrough, Ian Oliver","doi":"10.1111/emr.12602","DOIUrl":"10.1111/emr.12602","url":null,"abstract":"<p>Vegetation condition metrics are often used as a surrogate of biodiversity to support management decisions, conservation regulations and biodiversity markets. Vegetation condition metrics, which aggregate multiple attributes, are often criticised for simplifying the complexity of biodiversity. A particular challenge is substitution when high-scoring attributes compensate for those with low scores (e.g. high vegetation cover compensating for low growth from diversity). The geometric mean is often suggested for aggregation to reduce these effects. In New South Wales, Australia, the Vegetation Integrity metric, calculated as the geometric mean of Composition, Structure and Function sub-indices, measures the losses and gains in biodiversity values within the NSW Biodiversity Offsets Scheme. However, concern has been raised that Vegetation Integrity underestimates conservation values of derived native grasslands when the Function sub-index (primarily tree-related attributes) approaches zero. We explore this issue using two datasets and compare the current Vegetation Integrity metric with aggregation using the arithmetic mean, adopting a minimum value of 10/100 for the Function sub-index and use of a grassland benchmark for derived native grasslands. Our evaluation draws on a large-scale expert elicitation of conservation values in Critically Endangered Box-gum Grassy Woodlands and 4018 Vegetation Integrity estimates undertaken during development assessments. We find that Vegetation Integrity underestimates conservation values of derived native grasslands and that the problem is widespread. Although evidence most strongly supports aggregation using the arithmetic mean, this change could be disruptive to the Biodiversity Offsets Scheme. Alternatively, a sub-index minimum of 10/100 eliminates underestimation of derived native grasslands without substantial impacts in other circumstances. We found little evidence to support the use of a grassland benchmark, which tended to overestimate conservation values. This study highlights the need for sufficient flexibility in biodiversity policies and regulations to accommodate ongoing metric evaluation and revision to support more robust biodiversity outcomes.</p>","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 2","pages":"129-138"},"PeriodicalIF":1.9,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/emr.12602","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140581412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jemma Purandare, Roquelina de Sousa de Saboya, Elisa Bayraktarov, Lisa Boström-Einarsson, Paul E. Carnell, Aaron M. Eger, Agnes Le Port, Peter I. Macreadie, Simon E. Reeves, Peter van Kampen, Nathan J. Waltham, Melissa Wartman, Ian M. McLeod
{"title":"Database for marine and coastal restoration projects in Australia and New Zealand","authors":"Jemma Purandare, Roquelina de Sousa de Saboya, Elisa Bayraktarov, Lisa Boström-Einarsson, Paul E. Carnell, Aaron M. Eger, Agnes Le Port, Peter I. Macreadie, Simon E. Reeves, Peter van Kampen, Nathan J. Waltham, Melissa Wartman, Ian M. McLeod","doi":"10.1111/emr.12596","DOIUrl":"10.1111/emr.12596","url":null,"abstract":"<p>The United Nations has declared 2021–2030 as the Decade on Ecosystem Restoration and the Decade of Ocean Science for Sustainable Development. These declarations emphasise the importance of restoring degraded marine and coastal ecosystems and supporting research and knowledge. The number and scale of marine and coastal restoration projects have been increasing in Australia and New Zealand over the past 40 years. However, the lack of a central repository of projects and their results limits opportunities to share knowledge to improve effectiveness. To address this gap, we developed the Australian and New Zealand Marine and Coastal Restoration Database. Information for this database was gathered from publicly available documents (peer-reviewed journal articles and technical reports) and discussions with key organisations that lead projects in Australia and New Zealand. For each project, we recorded the start date, duration, spatial scale, location, details on monitoring, and success criteria. The database includes information up until 1 June 2020. It is available online via the Australian Coastal Restoration Network website.</p>","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 1","pages":"14-20"},"PeriodicalIF":1.5,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/emr.12596","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140581236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
James Listberger, Anthony Manea, Michelle R. Leishman, Weihua Li, Peter Cuneo, Jordan Scott, Johannes J. Le Roux
{"title":"Can the impacts of invasive African Olive on native Cumberland Plain Woodland plants be mitigated through bioinoculation?","authors":"James Listberger, Anthony Manea, Michelle R. Leishman, Weihua Li, Peter Cuneo, Jordan Scott, Johannes J. Le Roux","doi":"10.1111/emr.12597","DOIUrl":"10.1111/emr.12597","url":null,"abstract":"<div>\u0000 \u0000 <p>Invasive plants often impact the abiotic and biotic conditions of the ecosystems they invade. These impacts can persist after the removal of the invader as legacy effects that may hamper restoration. We assessed whether the invasion of Cumberland Plain Woodland in Australia by African Olive impacts the performance of native species through legacy effects. We also tested whether the addition of soil inocula from uninvaded Cumberland Plain Woodland and rhizosphere soils can mitigate the effects of invaded soils on native plant performance. To do this, we grew four native Cumberland Plain Woodland species (Australian Indigo, Climbing Saltbush, Hickory Wattle, Wedge-leaf Hop-bush) in mesocosms containing either uninvaded Cumberland Plain Woodland soil, African Olive-invaded Cumberland Plain Woodland soil or invaded Cumberland Plain Woodland soil inoculated with uninvaded or native rhizosphere soil. We found invaded soils to not consistently impact the growth of the Cumberland Plain Woodland species studied. In invaded soil, Hickory Wattle produced lower above and belowground biomass, Climbing Saltbush produced lower belowground biomass and Australian Indigo had a lower root to shoot ratio compared to plants grown in Cumberland Plain Woodland soil. The nodulation of Australian Indigo did not differ between soil treatments, while that of Hickory Wattle responded positively to inoculation. Our results suggest that the addition of native soil biota may improve the outcomes of ecological restoration projects on a species-specific basis.</p>\u0000 </div>","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 1","pages":"57-67"},"PeriodicalIF":1.5,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140312824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Abundant post-fire recruitment and rapid seedling maturity emphasise regular burning is beneficial for conserving the Vulnerable Purple-flowered Wattle (Acacia purpureopetala)","authors":"Paul Williams, Andrew Ford, Eleanor Collins","doi":"10.1111/emr.12589","DOIUrl":"10.1111/emr.12589","url":null,"abstract":"<div>\u0000 \u0000 <p>Purple-flowered Wattle (<i>Acacia purpureopetala</i>) has a Vulnerable status under the Queensland Nature Conservation Act (1992) and is listed as Critically Endangered under the Environment Protection and Biodiversity Conservation Act (1999). It grows in eucalypt woodlands of North Queensland. Its post-fire response was examined to better understand its ecology and management requirements. Before and after fire surveys found Purple-flowered Wattle is a fire-killed ‘obligate seeder’ with abundant fire-promoted germination, but limited recruitment in the absence of fire, highlighting the importance of regular burning for generating new plants. Nearly half of Purple-flowered Wattle seedlings began producing seed in their second year, indicating a population tolerant of frequent burning. Combined, the abundant fire-promoted recruitment and rapidly maturing seedlings suggest regular patchy fires that allow some mature plants to survive unburnt while promoting recruitment in burnt areas would benefit the population. A laboratory trial found percentage germination after 3 weeks was significantly higher for seeds treated by soaking in hot water for 5 minutes (31% germination), compared with those soaked in ambient temperature water (4% germination). However, by 5 weeks, germination differences between seed treatment were not statistically significant. The apparent discrepancy where unheated seeds eventually germinated in a laboratory setting, yet in situ germination was almost completely restricted to the post-fire environment, warrants further investigation. It may be that successful germination and seedling establishment in woodlands requires the rapid removal of physical dormancy, or perhaps keeping unheated seed constantly moist for 5 weeks in a laboratory trial is simply an unnatural treatment producing a germination response not relevant to ecosystem function. The abundant fire-triggered germination and rapid maturity of seedlings, combined with the known population number (>4,000 plants) and distribution range (850 km<sup>2</sup>), support existing recommendations that Purple-flowered Wattle warrants a Vulnerable rather than Critically Endangered Environment Protection and Biodiversity Conservation Act (1999) status, as is current at the state level. Management that includes regular patchy burning with good soil moisture that reduces the extent and intensity of individual fires is likely to benefit the long-term preservation of this restricted species and associated species of its ecosystems.</p>\u0000 </div>","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 1","pages":"51-56"},"PeriodicalIF":1.5,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adam K. Smith, Nathan Cook, Al Songcuan, Rachelle E. Brown, Gemma Molinaro, Julia Saper, Kristin Keane
{"title":"Effectiveness of coral (Bilbunna) relocation as a mitigation strategy for pipeline construction at Hayman Island, Great Barrier Reef","authors":"Adam K. Smith, Nathan Cook, Al Songcuan, Rachelle E. Brown, Gemma Molinaro, Julia Saper, Kristin Keane","doi":"10.1111/emr.12590","DOIUrl":"10.1111/emr.12590","url":null,"abstract":"<p>Coral reef management techniques such as relocation and transplantation are increasingly implemented in the context of increasing coastal development and a global decline of coral reefs over the last 30 years. A 170 m submarine desalination pipeline was constructed in 2020 to discharge wastewater from the desalination plant for Hayman Island resort, Whitsundays, Queensland, Australia. Pre-construction site assessments were conducted indicating a healthy, diverse and recovering coral community between intertidal and 12 m depth in the proposed route of the pipeline. Mitigation options included the selection of a pipeline route that minimised impact on coral, and relocation and transplantation of hard corals. Two hundred and four corals comprising 35 species from 15 genera, with estimated sizes ranging from small (less than 2 kg) to extra large (over 50 kg), were relocated from the pipeline footprint to a similar nearby site. The estimated total weight of relocated corals was 873–2850 kg. The most common species transplanted were Hump Coral (<i>Porites lutea)</i> (27%), Lesser Star Coral (<i>Goniastrea aspera)</i> (8.3%) and Starflower Coral <i>(Astreopora ocellata)</i> (7.8%). Individual coral survivorship and growth was monitored at zero, one, six, 12 and 24 months. After 24 months total coral survival was 77.5%. The survivorship of relocated coral exceeded the mean for global coral restoration projects and was deemed successful by the regulator. To assist benchmarking of future coral relocation projects we propose a standard of below 50% as poor, 50–60% as below average, over 60% as acceptable and over 80% coral survival at two years as excellent.</p>","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 1","pages":"21-31"},"PeriodicalIF":1.5,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/emr.12590","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luke S. O'Loughlin, Greg Baines, Emma Carlson, Claire Wimpenny, Rosie Cooney
{"title":"An assessment of potential herbivory impacts of a reintroduced marsupial in a predator-free woodland sanctuary","authors":"Luke S. O'Loughlin, Greg Baines, Emma Carlson, Claire Wimpenny, Rosie Cooney","doi":"10.1111/emr.12591","DOIUrl":"10.1111/emr.12591","url":null,"abstract":"<div>\u0000 \u0000 <p>Fenced sanctuaries that exclude feral predators are critical for threatened species conservation. However, adaptive management of these sanctuaries requires careful consideration of the potential impact herbivore populations free from predation can have on the condition of native vegetation. The Mulligans Flat Woodland Sanctuary in the Australian Capital Territory comprises Critically Endangered box-gum grassy woodland, threatened orchids, abundant macropods, and a reintroduced population of the Eastern Bettong (<i>Bettongia gaimardi</i>, hereafter “Ngaluda”). To understand how Ngaluda, along with other herbivores, may be potentially impacting vegetation across the sanctuary, we undertook an assessment of indicator plant species. We monitored 106 plots for 13 indicator species (10 species with tuberous roots that the burrowing Ngaluda would be preferentially targeting and three non-tuberous species). We found that most floristic indicators we investigated – including richness of indicator species and the abundance of lilies – were higher in the Goorooyarroo area of the sanctuary (where Ngaluda are absent and wallabies are rare) compared to the Mulligans Flat area of the sanctuary (where Ngaluda are present and wallabies are abundant), suggesting a negative impact of the overall herbivore assemblage of Mulligans Flat. However, within just Mulligans Flat, some indicators, including the abundance of a common orchid, were significantly lower in areas associated with high Ngaluda activity irrespective of other herbivore densities. We found no instance of Ngaluda presence or higher activity being associated with higher values for any floristic indicator we investigated. These results are consistent with known impacts of abundant herbivores and reintroduced digging marsupials in other predator-free sanctuaries in Australia. Our results highlight that Ngaluda herbivory may be outweighing any positive effect of their diggings on native vegetation and indicate the need for careful risk mitigation when deciding how critically endangered animals and vegetation communities are managed together in sanctuaries.</p>\u0000 </div>","PeriodicalId":54325,"journal":{"name":"Ecological Management & Restoration","volume":"25 1","pages":"37-50"},"PeriodicalIF":1.5,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140124982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}