Australian rangeland futures: time now for systemic responses to interconnected challenges

Australia’s rangelands contain wildlands, relatively intact biodiversity, widespread Indigenous cultures, and pastoral and mining industries, all set in past and present events and mythologies. The nature of risks and threats to these rangelands is increasingly global and systemic. Future policy frameworks must acknowledge this and act accordingly. This paper collates current key information on land tenures and land uses, people and domestic livestock in Australian rangelands, and discusses five perspectives on how the rangelands are changing, in order to inform the development of integrated policy – climate and environmental change; the southern rangelands; the northern rangelands; Indigenous Australia; and governance and management. From these perspectives, more attention must be paid to ensuring a social licence to operate across a range of uses, acknowledging and supporting a younger, more Indigenous population, implementing positive aspects of technological innovation, halting capital and governance leakages, and building human capacity. A recommended set of systemic responses should therefore (i) address governance issues consistently and comprehensively, (ii) ensure that new technologies can foster the delivery of sustainable livelihoods, and (iii) focus capacity-building on a community of industries where knowledge is built for the long-term. All three of these should be undertaken with an eye to the changing demographics of the rangelands.

Australian landscapes from Eocene to Anthropocene

The 65-million-year journey from the demise of the dinosaurs to the present day is characterised by changing climes, periods of species extinctions and, finally, the appearance of Homo sapiens. As an island from the start of this period, Australia’s landscapes were isolated from the rest of the world and to this day are characterised by a unique biodiversity. Since their arrival, First Nations peoples have somehow understood this special landscape, living in conformity with it, changing along the way as the climate and landscape changed. That all changed with the arrival of people from Europe, who were more familiar with a weedy landscape recovering from deep glaciation. Over the last 250 years, a lack of understanding of the uniqueness of the Australian landscape, and of First Nations connections with that landscape, has wrought both biological and cultural disruptions. Looking ahead, more conversations between all Australians on how to manage this country into an uncertain future, respecting the range of world views that exist, and rebuilding a viable biocultural diversity, remains a significant but achievable challenge.

Managing the unmanageable: reinstating the dingo for pastoral sustainability in Australian rangelands

The predominant grazing management system used in the arid rangelands regions of Australia, set stocking, is not conducive to sustainable land management. More appropriate grazing management systems based upon periodic rest periods for important pasture species have not been adopted by pastoralists because the unmanaged grazing pressure from animals such as goats and kangaroos has been too high. Dingoes are the only cost-effective and long-term management solution to the effect of unmanaged grazing by goats and kangaroos. Yet government funding targets dingo eradication in pastoral areas, and it does so by adopting misleading and scientifically inaccurate terms for describing dingoes.

Incorporating Indigenous knowledge in mine closure: Ranger Uranium Mine

The Ranger Project Area, located on the lands of the Mirarr clan, is surrounded by Kakadu National Park. After 40 years of uranium production at Ranger Mine, rehabilitation has begun, with a commitment that the land will be restored to a standard such that it could be incorporated into Kakadu National Park. Historically, mine closure has not been done well in the Northern Territory, and little if any consideration has been given to the views of Aboriginal landowners. An Aboriginal perspective of country recognises the interrelationship, via local kinship and moiety systems, of all things – the rocks, plants, animals, people, stories, weather, ceremonies and tradition. There is an opportunity for this worldview to be incorporated into the rehabilitation of Ranger Mine. The mine’s operator ERA (a subsidiary of Rio Tinto) has agreed to Cultural Closure Criteria that reflect a desire of Bininj (Aboriginal people from the region) to again use the land for hunting and gathering, recreation and cultural practice. Allowing Aboriginal people to have input to rehabilitation planning demonstrates a respect for people’s knowledge and connection to country. At Ranger, where the mine was imposed against the wishes of the traditional owners, this is an important step in a return to stewardship of this land and reconnecting people to place.

‘A talented young German’: exploration of the early career of Jacob Braché

Jacob Braché (1827–1905) arrived in Melbourne in 1853, two years into the Victorian gold rush, and soon became a significant figure in local mining circles. For almost fifty years, he contributed actively to mining endeavours – during periods as a civil servant, in numerous mining enterprises, and as a consulting mining engineer. Following a summary of Braché’s contributions in Victoria, this paper focuses on his education and experience prior to emigrating to the Colony, looking at the expertise that he brought to his colonial roles. It concludes with insights into why this ‘talented young German’ was a controversial figure over his half century of professional life in Australia.

A Late Oligocene brachiopod fauna from the rocky shore deposit at Cosy Dell farm, Southland, New Zealand

A Late Oligocene rocky shore fauna from Cosy Dell farm, Southland, is shown to include six brachiopod genera and species and, for the first time, records the co-existence of a discinid, a craniid and a kraussinid in such a paleoecological setting in New Zealand. This study includes the first reported occurrence of Discradisca in New Zealand and extends the stratigraphic range of species Megerlina miracula Hiller, MacKinnon & Nielsen, 2008 back to the late Oligocene. In addition, this study confirms the occurrence of M. miracula in very shallow-water deposits.

Wind climate of the Melbourne metropolitan area

This paper describes a probabilistic analysis of data recorded by the Bureau of Meteorology (BoM) for the wind climate of the Melbourne metropolitan area. It is based on 10-minute average wind data from four automatic weather stations (AWS) ‒ at Melbourne and Essendon airports, Fawkner Beacon in Port Phillip Bay, and Moorabbin Airport. Corrections to the data were made to adjust to standard terrain conditions and height. For the land stations, these were based on estimates of the surface roughness length at each site as a function of wind direction, making use of recorded gust factors. For the Fawkner Beacon, which is completely surrounded by open water, the surface roughness length is a function of mean wind speed, and the Charnock relationship was used in determining the corrections. For each station the terrain-corrected wind data were fitted with Weibull probability distributions, as an all-direction group and for sixteen direction sectors. Directional probabilities were also determined. The parameters of the all-direction Weibull distributions are very similar for all four stations, but there are differences in directional probabilities for some directions, with a geographic trend from north to south in the region being apparent. Some possible explanations based on the general topography are given.

Connections for resilience: sharing land management knowledge between farmers and politicians

Sharing knowledge is essential if Australian politicians are to effectively support farmers to be more resilient and adapt to climate change. Transformational change takes time; it can be fostered by on-ground examples of best practice in land management and innovative new approaches such as landscape rehydration. Farmers and politicians need to connect, to view and understand these methods and approaches and share their learnings. However, we need to go from connections for resilience to actions in the form of outcomes-based policy and financial support to achieve change.

The business of biodiversity: the role of Odonata

As one of the most biologically distinctive countries in the world, much of Australia’s flora and fauna are endemic to the continent; however, the issue of decline is immediate and ever present in many ecological communities. Odonata, as a not-for-profit business, believes that nature-focused business solutions are the key to properly supporting Australia’s biodiversity. By driving sustainable business solutions, supporting nature-focused projects and establishing predator-proof sanctuaries, Odonata looks to the role of stewardship as a means to promote healthy diversity and regenerate landscapes.