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Summary: Collaborations between Indigenous and non‐Indigenous scientific researchers are increasingly mandated by global to local conservation policy and research ethics guidelines. Breakdowns occur due to misunderstandings around expected protocols of engagement and cooperation, which are compounded by lack of broader awareness of differences in cultural values, priorities and knowledge systems. Using first‐hand experiences, we outline eight key protocols and guidelines that researchers should consider when undertaking research with Indigenous peoples, or on Indigenous Country, through exploration of biocultural protocols and guidelines within Australian and Indigenous customary laws. We use the onion as a metaphor to highlight the layers of protocols and guidelines that researchers can peel back to guide their research from international to local scales, with ethics around the research question at the core. This paper draws on the perspectives and experiences of an Indigenous researcher (as 'insider'/'outsider') and non‐Indigenous researcher ('outsider'), working on a cross‐cultural and multidisciplinary investigation of past Aboriginal dispersal of rainforest trees on the Australian east coast. This paper is part of the special issue 'Indigenous and cross-cultural ecology - perspectives from Australia' published in Ecological Management & Restoration. [ABSTRACT FROM AUTHOR]

Summary: This paper provides a critical analysis of the development and current outcomes of Australia's first endorsed strategic assessment under the Environment Protection and Biodiversity Conservation Act 1999, namely, the Melbourne Strategic Assessment. It covers progress towards protection of a number of Nationally Significant Species and Ecological Communities – most notably, the native grassland communities immediately adjacent to Melbourne's Urban Growth Boundary. The Commonwealth approval to protect biodiversity and allow urban development was made in 2010 and it aimed to achieve its outcomes by 2020. These outcomes included providing new land for homes, for new transport corridors, and for conservation of biodiversity. Natural Temperate Grassland (4,667 ha), Grassy Eucalypt Woodland (709 ha) and seven other Matters of National Environmental Significance will be impacted. Mitigation for this is establishment of 15,000 ha of grassland reserves, 1,200 ha of grassy woodland reserves, over 4,000 ha of other land zoned for conservation and 300 ha of wetland restoration. We conclude that the Melbourne Strategic Assessment has been a success in terms of the elegance and comprehensiveness of the approach, in cooperation between the levels of government, in the economic benefits, and in some aspects of social engagement of the agreement. However, the achievement of environmental outcomes must be currently considered a failure due to poor implementation. This failure includes not meeting the agreed 10 year deadline for land acquisition and management, poor monitoring and protection of set‐aside areas, and in reporting. We offer suggestions for how these current shortcomings could be overcome. These align well with the recommendations of the review of the Environment Protection and Biodiversity Conservation Act 1999 (The independent statutory review of the Act in 2020) and include the establishment of the proposed Office of Compliance and Enforcement, the adoption of National Environmental Standards and the reforms regarding the role of Indigenous Australians in strategic assessments. If these were adopted, we conclude that the strategic assessment approach should be more widely used because of the more holistic approach and efficiencies that it envisages compared with site by site approaches. [ABSTRACT FROM AUTHOR]

Summary: We synthesise the findings from 10 years of ecological restoration in the Midlands of Tasmania, Australia, captured in the series of 14 papers in this special issue of Ecological Management and Restoration. The papers illustrate how expertise from disciplines as diverse as law, economics, social sciences, the arts, education, zoology, botany, genetics, climate modelling, agriculture, spatial sciences and fire ecology are necessary to address the complex social, ecological and financial questions that underpin restoration ecology. We highlight the complexity of the task, the multi‐disciplinary and collaborative approach needed, the importance of science to inform restoration practice and the problem of achieving functional connectivity. We also outline steps that need to be taken in the next 10 years. Together, the outcomes and recommendations from these studies provide a template for restoration in similar highly cleared and degraded agricultural landscapes affected by climate change in Australia and internationally. [ABSTRACT FROM AUTHOR]

Summary: Globally, the role of women in conservation is gaining attention with increasing initiatives to support gender equity in environmental management and decision‐making. In Australia, the role of Aboriginal women in natural and cultural resource management employed as rangers is also gaining recognition; however, female employment in this field remains underrepresented. This paper reflects on a cross‐cultural partnership aimed at empowering young Aboriginal women in natural and cultural resource management, locally known as caring for Country, in Arnhem Land, a remote Aboriginal owned region of northern Australia. The project was led by local Ngukurr community Ngandi Elder and lead author, Mrs Daniels, and Macquarie University researchers who co‐designed and co‐delivered activities according to five project aims: (i) Community involvement; (ii) Biocultural research / learning on Country; (iii) Leadership and confidence building; (iv) Knowledge maintenance; and (v) Capacity building. Over three years of the project, over 60 youth participated in a range of on‐Country and cultural learning, leadership and capacity building activities including cross‐cultural biodiversity surveys, wetland monitoring, traditional language and knowledge recording and culture camps. Participant feedback and a biocultural learning assessment task noted growth in confidence, biocultural knowledge and desire for continuation of youth empowerment programs in conservation. To facilitate gender equity in Aboriginal natural and cultural resource management, structural and sustained support of women's empowerment and leadership, driven by local women with support of local communities, is required. [ABSTRACT FROM AUTHOR]

Summary: This Statement on improving kangaroo management originates from the shared experience of many peak bodies and stakeholders that existing policy and practices related to kangaroo management cause perverse outcomes for animal welfare, conservation, productivity, waste, drought resilience, climate, and the health, culture and wellbeing of Australians. The Statement was developed in consultation with delegates from two kangaroo symposia in 2019, and broadened through contributions from other ecological, Aboriginal, animal welfare and conservation stakeholders who believe reform is necessary. Positive change across all these domains requires an empathetic, science‐based collaborative and coordinated approach to improve management of kangaroos in Australia, which in turn requires building a broad social mandate for reform. This manuscript presents the drivers and definitions for the Statement and key references documenting the causes and recommended solutions for improving kangaroo management, including many of the papers in this volume. An extensive inventory of conservation, agricultural, animal welfare, indigenous and scientific organisations that have endorsed the Statement is provided. We aim to inform public opinions and drive necessary change to policy, attitude and actions to appropriately value, conserve and utilise kangaroos where there is a tendency for overpopulation. Recommendations include development of a National Kangaroo Strategy that includes discussion on whether overabundant kangaroos are a legitimate sustainable resource that should be managed as such rather than being largely wasted as the by‐product of pest control to protect other industries or conservation landuses. [ABSTRACT FROM AUTHOR]

Summary: Wildlife management on a landscape scale is often complex, particularly where different land use practices occur in the same region. This is particularly so for the management of overabundant grazing species (both domestic and native) in a modified landscape, where anthropogenic activities and climatic drivers can influence their distribution and abundance beyond sustainable levels. In Australia's arid rangelands, macropods benefit from pastoral activities including improved pastures, artificial watering points and the removal of apex predators. This paper addresses some of the challenges associated with managing Red Kangaroo (Osphranter rufus) in a conservation context on the privately managed Boolcoomatta Station conservation reserve in the South Australian arid rangelands. We reflect on the history of the region and how anthropogenic activities, associated with an unpredictable climate, have made macropod management so complex. Ecological monitoring at Boolcoomatta Station suggests that, along with the influence of rainfall, grazing by overabundant Red Kangaroo had a negative impact on vegetation and resident avifauna of chenopod plains. Fenced exclosures further demonstrate the grazing impact of Red Kangaroo, with perennial grasses found only where grazing was excluded. The closure of waterpoints (dams) failed to reduce Red Kangaroo impacts on the reserve, despite some evidence that persistence of Red Kangaroo near fenced dams may be reduced in the long term. Results of monitoring and management outcomes at Boolcoomatta highlight the need for an improved framework to manage Red Kangaroo. This should include consideration of improved regional stock management practices in the face of climate change; improving our understanding of the role of apex predators in agricultural landscapes; developing and setting grazing impact thresholds to instigate macropod management; improving and standardizing monitoring methods for assessing impacts; and lastly, consideration of the mental health and social well‐being of land managers in these areas. [ABSTRACT FROM AUTHOR]

Summary: Management of feral animals can be complicated by conflicting economic, social, cultural and political values of stakeholders. To visually demonstrate the ecological impacts of feral ungulates, natural resource managers often construct exclusion fences; however, lessons are not often widely shared in the scientific literature and Indigenous insights are rarely recorded. Here, we report on long‐term (7–11 years) feral buffalo and pig exclusion fences that were constructed by the Yirralka Rangers in ephemeral coastal wetlands of the Laynhapuy Indigenous Protected Area, northern Australia. Elevation transects across fence boundaries suggested that feral ungulates may be eroding floodplains and therefore reducing elevation. Comparisons of intermittent photos and contemporary inside–outside fence floristic assessments suggested that feral ungulates have an obvious and significant effect on vegetation cover and composition which may also inhibit natural soil accretion. Interviews with senior Indigenous knowledge holders revealed that feral ungulate culling was broadly supported due to impacts on cultural and spiritual values. Synthesis of the results suggested that feral ungulates are having substantial impacts on the cultural use, flora and soil stabilisation of coastal wetlands. Further research on soil erosion and accretion in places with and without ungulates will elucidate the effects of ungulates on potential sea‐level rise resilience of coastal wetlands. This paper highlights the benefits of cross‐cultural and collaborative multi‐disciplinary research such as producing holistic outcomes relevant to stakeholders that can inform management decisions. [ABSTRACT FROM AUTHOR]

Summary: Protecting native biodiversity is a difficult prospect in extremely modified landscapes, especially where high‐impact exotic species are widespread. Using new data and a review of the literature, this paper comments on the use of livestock grazing to manage the invasive and highly combustible pasture grass species, Buffel Grass (Cenchrus ciliaris) and thereby help conserve fire‐sensitive Brigalow (Acacia harpophylla) vegetation in reserves in Queensland, Australia. We cite evidence that shows that grazing is a potentially useful management tool in such cases and its use can be compatible with the protection of both fire‐sensitive vegetation and other native plant species within the understorey. However, there are limitations in implementing grazing within conservation reserves including the lack of a clear understanding of the influence of grazing on biodiversity and resource condition. Importantly, we highlight secondary invasion by the exotic grass Indian Couch (Bothriochloa pertusa) as a key emerging threat that may undermine the biodiversity benefits gained by grazing in reserves. Grazing can be a useful tool for conservation management in particular scenarios, but the associated risks demand accompanying monitoring and reporting of positive and negative impacts to ensure the fundamental aim of biodiversity protection is being achieved. [ABSTRACT FROM AUTHOR]

Summary: Measuring and monitoring population size and growth are critical to assessing the progress and ultimately the success (or failure) of a reintroduction. The Woylie (Bettongia penicillata ogilbyi) is one of Australia's threatened critical weight range mammals. To increase the species' area of occupancy, extent of occurrence, number of sub‐populations and global population size, in addition to creating a source population for future reintroductions, a new population has been re‐established into a safe haven located within the species' former range – Mt Gibson Wildlife Sanctuary. In this paper, we document the first 3 years of the reintroduction programme, over which time 162 individuals were translocated to Mt Gibson. Specifically, we (i) provide information on survivorship, (ii) estimate changes in critical population metrics (density, population size and distribution) and (iii) look for any major habitat preferences. Survivorship of collared animals was complete (i.e. zero mortality). The most recent population estimate was in the order of 750 individuals, reflecting strong growth in population size and density. The woylie has occupied the majority of the safe haven and is well represented in all major vegetation communities. The translocation is on track to meeting the key success criteria: a self‐sustaining population of woylies with a minimum of 300 individuals. [ABSTRACT FROM AUTHOR]

Summary: Past and continuing fragmentation and modification of ecosystems, as well as other threatening processes, cause ongoing biodiversity losses and species extinctions in Australia. At the same time as biodiversity declines, government funding for conservation and restoration is diminishing, leading to reduced action and greater reliance on private investment and community groups. In order to maintain and restore biodiverse ecosystems and the essential services they provide, both conservation of existing vegetation and habitat reconstruction are required. In this paper, we summarise the available data on planting area and cost from the Australian Government's 20 Million Trees programme (2014–2020), the largest recent national‐scale revegetation incentives programme in Australia. We find that the current spatial scale of effort and investment in habitat reconstruction is insufficient to match the scale required to meet national conservation objectives. Furthermore, the funding rate ($/ha) and contracting arrangements are inadequate for the establishment of high‐quality self‐sustaining vegetation needed for the recovery of Australia's threatened species and ecological communities. We estimate that the minimum amount of funding required for habitat reconstruction is at least five times higher than is provided for current national flagship programmes such as 20 Million Trees. We provide recommendations, designed to assist future habitat reconstruction programmes achieve their long‐term biodiversity objectives. [ABSTRACT FROM AUTHOR]

Interactions between landholders, practitioners and research scientists have greatly influenced landscape restoration activities in South‐eastern Australia. Vegetation connectivity projects undertaken by Holbrook Landcare Network in the Slopes to Summit (S2S) region of South‐eastern Australia have benefitted from the input of both scientists and practitioners. This paper explores what factors support an evidence‐informed restoration outcome, what constrains this and what we can learn from this case. [ABSTRACT FROM AUTHOR]

Summary: Mature forests have structural habitat features that can take hundreds of years to develop, and large reserves alone are unlikely to ensure conservation of the species that rely on these features. This paper outlines a proposed new approach to managing mature forest features, the ‘mature habitat management approach’, in areas outside of reserves. The objective was to maintain a network of current and future mature forest habitat distributed across the landscape. The approach is designed to complement the existing reserve network and management actions and is tenure‐blind. Spatial information on the availability of mature forest habitat at the local (1‐km radius) and landscape (5‐km radius) scales is used for decisions on retention within a 1‐km radius of a harvest area, to reach the minimum target of 20% and 30% retention of mature forest at the local and landscape spatial scales, respectively. We believe this approach could contribute to meeting the conservation needs of many species that require mature forest features for refuge and breeding in Tasmania and elsewhere. [ABSTRACT FROM AUTHOR]

Summary: Mature trees and forests contain structural features such as tree hollows, large coarse woody debris and large spreading crowns that provide critical habitat for a wide range of species. These features can take hundreds of years to develop and require careful management to ensure their continued availability. Managing these features requires spatial mapping layers to facilitate landscape‐scale management. This paper outlines how a map of mature forest habitat was developed for Tasmania, Australia. The map was produced using spatial data on vegetation type, mature crown density and senescence, a global layer of forest loss data derived from satellite imagery, a database on timber harvest plans and a spatial layer on the extent of fire. The relationship between mapped mature habitat availability (high, medium, low or negligible) and tree hollow availability in wet forest areas was explored, complementing a similar published study in dry forests. The number of large trees likely to have hollows significantly increased with mapped mature habitat availability, although there was considerable variation and overlap between map categories. Data from a fauna locality database and two radio‐tracking studies showed that three of the vertebrate hollow‐using species examined (Swift Parrot, Common Brushtail Possum and the Tasmanian Long‐eared Bat) and nest records of a species reliant on large tree crowns (the Wedge‐tailed Eagle) were all more likely to occur in areas of higher mapped mature habitat availability. It is concluded that this map reflects the relative availability of tree hollows, is ecologically meaningful and will be useful when managing mature forest habitat at large spatial scales, but the variable accuracy of the map at fine scales needs to be taken into account. [ABSTRACT FROM AUTHOR]

National ecological restoration standards – produced in 2016 through the collaboration of 13 of Australia's leading ecological restoration organisations – are increasingly influencing practitioners. This paper elucidates two of the Key Principles that underpin standards to encourage highest and best efforts across all sectors and help resolve uncertainty about the role of restoration in a changing world. [ABSTRACT FROM AUTHOR]

Top-predators can sometimes be important for structuring fauna assemblages in terrestrial ecosystems. Through a complex trophic cascade, the lethal control of top-predators has been predicted to elicit positive population responses from mesopredators that may in turn increase predation pressure on prey species of concern. In support of this hypothesis, many relevant research papers, opinion pieces and literature reviews identify three particular case studies as supporting evidence for top-predator control-induced release of mesopredators in Australia. However, many fundamental details essential for supporting this hypothesis are missing from these case studies, which were each designed to investigate alternative aims. Here, we re-evaluate the strength of evidence for top-predator control-induced mesopredator release from these three studies after comprehensive analyses of associated unpublished correlative and experimental data. Circumstantial evidence alluded to mesopredator releases of either the European Red Fox ( Vulpes vulpes) or feral Cat ( Felis catus) coinciding with Dingo ( Canis lupus dingo) control in each case. Importantly, however, substantial limitations in predator population sampling techniques and/or experimental designs preclude strong assertions about the effect of lethal control on mesopredator populations from these studies. In all cases, multiple confounding factors and plausible alternative explanations for observed changes in predator populations exist. In accord with several critical reviews and a growing body of demonstrated experimental evidence on the subject, we conclude that there is an absence of reliable evidence for top-predator control-induced mesopredator release from these three case studies. Well-designed and executed studies are critical for investigating potential top-predator control-induced mesopredator release. [ABSTRACT FROM AUTHOR]

Global population growth and associated urban development are having profound effects on biodiversity. Two major outcomes of expanding development that affect wildlife are light and noise pollution. In this paper, we review literature reporting the effects of light and noise on biodiversity, and assess implications for conservation planning in Australia. Our results clearly indicate that light and noise pollution have the potential to affect the physiology, behaviour and reproduction of a range of animal taxa. Types of effects include changes in foraging and reproductive behaviours, reduction in animal fitness, increased risk of predation and reduced reproductive success. These could have flow-on consequences at the population and ecosystem levels. We found a significant gap in knowledge of the impact of these pollutants on Australian fauna. To reduce the effect of light and noise pollution, there needs to be careful planning of urban areas in relation to protected areas, and for biodiversity more generally. Potential measures include strategically planning the types of development and associated human activities adjacent to protected areas, and the use of shields and barriers, such as covers for lights or the use of dense native vegetation screens, while still allowing movement of animals. Changes in government standards and regulations could also help to reduce the impacts of light and noise pollution. [ABSTRACT FROM AUTHOR]