Pastoral Leases Research Articles

Surveillance for lumpy skin disease and foot and mouth disease in the Kimberley, Western Australia.

We quantified the sensitivity of surveillance for lumpy skin disease (LSD) and foot and mouth disease (FMD) in cattle in the Kimberley region of Western Australia. We monitored producer and veterinary activity with cattle for 3 years commencing January 2020. Each year, ~274,000 cattle of 685,540 present on 92 pastoral leases (stations) were consigned to other stations, live export or slaughter. Veterinarians examined 103,000 cattle on the stations, 177,000 prior to live export, and 10,000 prior to slaughter. Detection probabilities for the disease prior to transport or during veterinary procedures and inspections were elicited by survey of 17 veterinarians working in Northern Australia. The veterinarians estimated the probabilities that they would notice, recognise, and submit samples from clinical cases of LSD and FMD, given a 5% prevalence of clinical signs in the herd. We used scenario tree methodology to estimate monthly surveillance sensitivity of observations made by producers and by veterinarians during herd management visits, pre-export inspections, and ante-mortem inspections. Average monthly combined sensitivities were 0.49 for FMD and 0.37 for LSD. Sensitivity was high for both diseases during the dry season and low in the wet season. We estimated the confidence in freedom from the estimated surveillance sensitivity given one hypothetically infected herd, estimated probability of introduction, and prior confidence in freedom. This study provided assurance that the Kimberley is free of these diseases and that routine producer and veterinary interactions with cattle are adequate for the timely detection of the disease should they be introduced.

Applying two remotely-sensed methods for monitoring grazing impacts in the Australian arid zone

Objective monitoring methods that reliably identify grazing impact are required for long-term sustainable management in the arid rangelands. In Australia such methods must contend with highly unpredictable rainfall and large paddocks incorporating spatially complex land types with differing grazing preferences. Retrospective analysis of data collected following very dry and very wet periods removes vegetation dynamics generated by lesser rainfall events and should increase our ability to separate grazing effects from seasonal variability. Two remote-sensing methods were tested for their capacity to quantify trends over 30 years in vegetation-cover dynamics on a pastoral lease in central Australia with a history of heavy grazing. Following destocking by 2002, one section became a conservation reserve and another transitioned to a research station. During drought, the Dynamic Reference Cover Method (DRCM) showed that ground-cover deficit was less negative on both areas towards the end of the study. This improvement was attributable to increased ground cover after removal of grazing, followed by a reduced, but variable, grazing intensity on the research station and the spread of an introduced palatable perennial grass. Ground-cover response following rainfall was highest in 2011. Likewise, increased ground cover meant that the percentage Cover Production Loss (%CPL) index, calculated using grazing gradient methods (GGMs), was considerably less than a decade earlier following similar rainfall. Results from an associated recovery index (R) were inconclusive. Landscape heterogeneity potentially affected calculation of cover deficit using DRCM but, because heterogeneity was stable over time, reported change between dry years reliably indicated a trend owing to grazing. Interpreting trend from successive %CPL values in wet periods was complicated on the research station by altered waterpoint locations being superimposed on pre-existing degradation; however, the method should be effective in large paddocks with stable waterpoint locations. Despite their limitations, both methods can assist in objectively judging the long-term sustainability of grazing practices in contrasting seasonal conditions.

James Wigley and the Strelley Mob: Social Realist Painting in an Aboriginal Community

ABSTRACT James Wigley has been historicised by Australian art scholars as a social realist, but the focus of his work through the late 1950s, 1960s and 1970s differed from others who were a part of this art movement. During this time, he returned again and again to join the “strike mob” who had walked off pastoral stations in the Pilbara in 1946 and become independent by mining and purchasing their own pastoral properties. The organiser of the strikers, Don McLeod, invited Wigley to help the strikers with building boats to gather pearl shell, and later to run a printing press at the school in the new settlement of Strelley, on one of their pastoral leases. During his time with the strikes, Wigley drew and painted; he would send work to Melbourne and return there to exhibit work about the Pilbara and the people who lived there. He also illustrated the schoolbooks he was printing for the Strelley Literature Centre in the late 1970s. This article argues that this significant body of work places Wigley alongside other Australian artists who spent substantial time in remote Aboriginal communities, and whose experiences shaped their art.

Grappling with Weeds: Invasive Species and Hybrid Landscapes in Cape York Peninsula, Far Northeast Australia

The control of various introduced species brings to the fore questions around how species are categorised as ‘native’ or ‘invasive’, belonging or not belonging. In far north Queensland, Australia, the Cape York region is a complex mixture of land tenures, including pastoral leases, National Parks and Aboriginal land, and overlapping management agreements. Weed control comprises much of the work that land managers in Cape York do. However, different land managers target different introduced species for control, and the ways in which certain species are understood as more or less problematic indicate how land managers understand and seek to order landscapes. Through investigating the various positions that introduced species occupy, I will explore how Cape York emerges as a ‘hybrid landscape’ that is produced in contested, overlapping and ambiguous ways, and is rife with ‘feral dynamics’.

The living dead: Demography of Australian sandalwood in Australia's western rangelands

AbstractOne‐third of the world's trees are at risk of extinction, with large, old, long‐lived trees among the most vulnerable. Long‐lived trees in arid and semi‐arid biomes are particularly at risk, including Australian sandalwood (Santalum spicatum, Santalaceae), which is experiencing substantial population decline due to a suite of natural and anthropogenic drivers, with no appreciable recruitment estimated for more than 80 years. To contextualize this range‐wide collapse and quantify regional variation in population dynamics across Australia's western rangelands, we investigated the size‐class profiles of 12 sandalwood populations in a 1,500‐kilometre arc between Shark Bay and the Gibson Desert in central Western Australia including Indigenous Protected Areas, pastoral leases and public and private conservation parks and reserves. Stem diameters, indicative of age using known growth rates, were recorded for 1,355 sandalwood plants, along with a set of another plant structural and ecological parameters. Using size‐class profiles and associated demographic data, we estimated the population age structure and trajectory to determine whether each population was increasing, stable or declining. Our surveys revealed sandalwood populations are declining and are composed almost entirely of very old trees in advanced states of senescence. Of 1,355 plants sampled, 1,198 (88.4%) individuals were large (old) trees. A total of 23 seedlings and 21 saplings were recorded across all sites, almost all of which (22 and 19, respectively) were in one population, and located under the canopies of parent trees where they would not be expected to survive to maturity. Our findings reinforce the urgent need to list Santalum spicatum as a threatened species in Western Australia (where wild plants are still being commercially harvested) and to initiate effective conservation actions to secure the species' continued existence across its natural range.

Reintroduction of Bilbies (Macrotis lagotis) to Matuwa, an Indigenous Protected Area in Western Australia

The greater bilby (Macrotis lagotis) once occupied much of Australia's mainland. Bilbies are now listed as vulnerable and only occur in 20% of their former range. Operation Rangeland Restoration aims to to restore an ex−pastoral lease; reintroduce several species of locally extirpated fauna, including the bilby; and maintain the area in perpetuity for the conservation of Australian arid zone species. Bilbies were reintroduced to the Matuwa Indigenous Protected Area between 2007 and 2010 and, with ongoing landscape-scale control of feral predators, herbivores, and fire, have thrived. Here, we present a detailed account of the methods used during the reintroduction, showing that between 2007 and 2019 there has been an 88% increase in the area of occupancy by bilbies at Matuwa. The results of 2-ha track plot surveys conducted by the traditional owners of Matuwa suggest that the reintroduced bilbies are emigrating out of Matuwa. In addition, in 2018 and 2019 we used 120 camera-traps over 18 mo and occupancy analysis to confirm the widespread presence of bilbies across Matuwa and define significant habitat correlates. Bilbies were more likely to be detected on sandplains with Eucalyptus species as overstorey vegetation and Triodia as understorey vegetation. Bilbies were not detected in habitats with ≥ 75% bare ground. We attribute the success of the bilby reintroduction at Matuwa to the consistent implementation of landscape-scale control of feral predators.

Adaptive Management of Malkumba-Coongie Lakes Ramsar Site in Arid Australia—A Free Flowing River and Wetland System

The Malkumba-Coongie Lakes Ramsar Site has extensive terrestrial and freshwater ecosystems (largest Ramsar Site in Oceania, 2,178,952 ha, designated in 1987), including freshwater and salt lakes, lignum swamps and river channels in central Australia. It is supplied by Cooper Creek, a free-flowing Lake Eyre Basin river system. The area includes pastoral leases (97% of site grazed, including a regional conservation reserve (35%)) and a National Park (3%), with the largest oil and gas production field in Australia. We developed a Strategic Adaptive Management (SAM) Plan, linking science, monitoring and management of this social-ecological system, involving stakeholders and workshops. This involved developing a shared vision and hierarchy of objectives linked to management actions and identified outputs and outcomes. We exemplify this approach with explicit and measurable end-points (thresholds of potential concern) culminating from low level objectives for fish communities, particularly the alien sleepy cod Oxyeleotris lineolata. We describe this framework, highlighting the benefits in prioritizing management actions and monitoring in collaboration with a diverse range of stakeholders, driving adaptive feedback for learning. The whole approach is aimed at successfully achieving mutually agreed management objectives and the vision to maintain the ecological character of the Malkumba-Coongie Lakes Ramsar Site.

David John Thomas and the first operation under etherisation in Melbourne.

The first patient etherised by David John Thomas was James Egan, an Irish bounty immigrant who lived on a pastoral lease about 120 km from Melbourne. Egan had injured his left hand and forearm in a shooting accident. It would take Egan five or six days to reach Melbourne where he had his forearm amputated on 2 August 1847. Egan had fainted frequently in the cart on the way to Melbourne and was fortunate to survive the etherisation and surgery. In September 1847, Thomas presented a paper on etherisation at a monthly meeting of the Port Phillip Medical Association-this is the earliest known presentation of a paper on etherisation in the Australian colonies. The original manuscript of Dr Thomas is now held by the Medical History Museum at the University of Melbourne.

Tax Accounting for Livestock: Mother or Meat/Capital or Revenue?

Australia is experiencing cataclysmic weather events largely due to rising atmospheric temperatures caused by greenhouse gas emissions – climate change. A consequence of droughts, floods, fires, tempests and family disasters is the sale or loss of valuable stud stock. In normal trading circumstances these animals would not be sold as trading stock. However the sale of pastoral properties can be beyond the will of the owners for a raft of reasons. Presently the receipts from the sale of ALL animals sold as part of a primary production business are considered to be income according to ordinary concepts by the Australia Taxation Office (ATO) and taxed at ordinary income tax rates. This paper considers the value of animals included in the sale of rural properties in Australia. It argues that the provisions of the Income Tax Assessment Act 1997 (ITAA 1997) are being misinterpreted by tax administrators and tax professionals. Sections 70-10, 995 ITAA 1997 provide that livestock are trading stock – a revenue item. However s 385-100 refers to breeding stock – a capital item. Many practitioners may be interpreting ss 70-10, 995 as applying to ALL livestock. Considering the sale ALL animals traded on the sale of a pastoral lease or farm as revenue denies vendors of concessions permitted under the capital gains tax provisions. This paper considers the income and capital gains tax implications on the sale of animals in conjunction with the sale of pastoral and farming properties in Australia. The distinction between classifying expenditure by an enterprise to be on items of a capital or a revenue nature has long been argued. Generally, in accounting terms, expenditure is considered to be of a capital nature if the benefit of the purchased asset is applied to more than one accounting period.

Monitoring vegetation recovery in the early stages of the Dirk Hartog Island Restoration Programme using high temporal frequency Landsat imagery

SummaryDirk Hartog Island is the largest island off the West Australian coast. From the 1860s to 2008, the island was managed as a pastoral lease. In 2009, the island was gazetted as a National Park and the process of removing introduced animals, to allow for the reintroduction of a suite of 12 native mammal species, began. With the removal of high numbers of goats and sheep concerns were raised regarding the proliferation of weed species (which would no longer be controlled through grazing) and the ability of the island’s native vegetation to recover. A vegetation monitoring programme was developed which integrated detailed floristic surveys, repeated site photography and Landsat time series data to provide a comprehensive picture of how the island’s vegetation cover had changed since destocking. The integration of these elements has allowed present‐day observations to be put into context of longer term landscape dynamics. Through statistical analysis of temporal sequences of Landsat satellite imagery, the timing of changes to phenology and cover at monitoring sites was related directly to the management action of stock removal. With the use of field observations, the species responsible for the increase in cover were identified. These data sources, when analysed together, allowed management to have confidence that, following destocking, native vegetation cover is increasing.

Crown Lands Commissioners – Moreton Bay and Darling Downs, 1842–56

Commissioners of Crown Lands were the first government officials appointed to the newly declared pastoral districts surrounding Moreton Bay after it was opened to free settlement in 1842. These officers had a significant impact on the formation of regional communities, the administration of justice and the treatment of the Indigenous people but their primary responsibility was the implementation and enforcement of government policies relating to Crown Lands. Commissioners were required to oversee pastoral leases, ensure payment of fees for pastoral and other licences and undertake expeditions to provide the New South Wales government with information regarding the nature of the land and its resources. Extracts from the original correspondence between the Commissioners and the Colonial Secretary indicate that, despite enormous challenges, early Crown Lands Commissioners were largely successful in ensuring the orderly settlement of pastoral districts. Their success however, came at the expense of the Indigenous people, who were systematically driven from their lands without compensation and with scant consideration for their welfare.

Environmental adaptation of leucaena in Western Australia – challenges and opportunities

Keynote paper presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia.There is considerable interest from Western Australian (WA) pastoralists on the potential role of leucaena (Leucaena leucocephala) in northern WA, where the potential area for dryland production of species of the genus Leucaena is high. Although it is highly regarded for animal production in other countries and in Queensland, leucaena is a contentious species since its status as an environmental weed precludes it from use on pastoral leases in the Kimberley and Pilbara regions of WA. Development of sterile/seedless forms would overcome risks of spread of the species as a weed. The key environmental constraints to growth of leucaena are likely to be the length of the dry season and low fertility of most soils other than the grey/black cracking clays (vertosols). Psyllid resistance and cool temperature tolerance are likely to be of secondary importance. Opportunities for irrigated production are also emerging and may allow leucaena species to be used in environments previously considered well outside their home-range. It is desirable now to re-examine the diversity of the wider leucaena genus for adaptation to WA conditions generally and for the purpose of selecting elite parent material for use in a sterile/seedless leucaena breeding program. These perennial species that can be under production for 30 to 40 years need to be evaluated in the target environments for at least 3‒5 years to fully understand their potential as adult plants.

Agricultural intensification, ownership, and landscape change in the Mackenzie Basin

This article investigates the role of shifting land ownership in landscape change in New Zealand’s Mackenzie Basin. It was hypothesised that ownership patterns influence landscape transformation; and changes in ownership lead to landscape changes. Satellite imagery was used to trace recent landscape changes quantifying a change from brown extensive pastoralism to green irrigated pasture. It was concluded that the change in land ownership following land reform allowed for about half of this agricultural intensification since 2003. Aggregating intensification on new freehold land with that on current pastoral lease changes the story; Crown decisions about disposition or intensification of Crown land account for two-thirds of intensification since 2003. Hence, if current trends in the Mackenzie are to change, the Crown must examine its decision patterns. Change in some form seems likely. The results presented speak to who has the power to make change. The choice and the power reside somewhere in the space between the Commissioner of Crown Lands and the Minister of Land Information.

The occurrence and relative abundance of small terrestrial mammals on Theda Station in the Northern Kimberley, Western Australia

Significant gaps in knowledge currently exist regarding the small mammal fauna of the Northern Kimberley (NOK) bioregion. Theda Station is a previously unsurveyed pastoral lease in the NOK. The aim of the current study was to determine the presence of small mammals (non-volant, <2 kg) on Theda Station and to compare these findings with those recently obtained on the adjacent Doongan Station. Between 2006 and 2014, 226 site surveys were conducted across 69 sites, with over 26 000 trap-nights encompassing a range of habitats. Thirteen of the 27 small mammal species known to occur in the NOK were detected. Four species (Pseudomys nanus, Rattus tunneyi, Zyzomys argurus and Sminthopsis virginiae) were common, five (Pseudomys delicatulus, Pseudantechinus ningbing, Dasyurus hallucatus, Isoodon macrourus and Petropseudes dahli) were detected less frequently, and four (Leggadina lakedownensis, Hydromys chrysogaster, Planigale maculata and Petaurus breviceps) were occasionally recorded. Our study provides important baseline data for small mammals in this region. It highlights the lack of detailed knowledge of both the presence of, and temporal fluctuations in, the region’s small mammal fauna. This study supports a non-uniform distribution of the small mammal fauna across the NOK, with Theda Station lying within a transition zone between the high rainfall rugged coastal and near-coastal areas and the lower rainfall areas of the east.

Effects of sheep grazing exclusion on alpine tall tussock grasslands

Substantial areas of alpine tall tussock grasslands are being retired from grazing as part of Crown pastoral lease tenure review because of the perceived negative impact of grazing livestock. However, relatively little is known about the effect of sheep exclusion on these grasslands. We analysed data from five grazing exclosure plots over a 6-year period to examine the effect merino sheep have relative to hares and rabbits in alpine tall tussock grasslands used for summer grazing. Unfortunately, because of snow damage to fences, we were unable to detect any significant hare and rabbit effects. Over the time of this study, there was no evidence for significant vegetation recovery after exclusion of sheep grazing. This may be because of other grazing animals in the system, or the low stocking rates and non-random grazing behaviour of merino ewes. There was, however, a significant increase in the cover of exotic herbs Pilosella officinarum and P. praealta and a significant decrease in the cover of native tussocks Festuca novae-zelandiae and Poa colensoi regardless of grazing exclusion. While this pattern has been previously documented in studies at lower elevations and usually with a history of burning, our results demonstrate that alpine grasslands with no burning history can also be invaded by Pilosella spp. over relatively short time frames. Replicated grazing exclosure trials such as the one described in this paper are important for providing objective information on both long-term trends in vegetation composition and the impacts of grazing animals in alpine grasslands as a basis for making informed decisions on their future management.

Art, action and tenure review: Landscape and politics in the high country of Aotearoa New Zealand

The aim of this paper is to explore the politics of land tenure in the high country of Aotearoa New Zealand. In the mid-1990s the New Zealand government inaugurated a process of tenure review, under which the ownership of 2.37 million hectares of Crown pastoral lease land will be reordered, with around half of the land eventually becoming freehold and the other half transferred into the conservation estate. In the mid-2000s a media debate erupted between high country farmers and conservation and recreation groups about the appropriate ownership of the high country. The story of tenure review is a story of a moment of challenge to farmer control (symbolic and actual) of the high country, a moment in which conservation and recreation values seriously contested those of agricultural production. The question I seek to explain is the mobilisation of discourses of stewardship by farmers to promote and defend their interests in this debate. Drawing on the work of Pierre Bourdieu, I argue that the deployment of discourses of stewardship can be analysed in terms of transformations in the value of capitals of pastoral farming and productivist agriculture in relation to the capitals of environmentalism and conservation in the New Zealand political field at the time. Such a discursive strategy was available to farmers, I suggest, because of the way in which the high country is represented in art and other visual media as largely untouched nature. The ways in which the high country is represented is formative of high country farmer subjectivity, or habitus, and as such generative of their strategies. What the analysis suggests is that in particular places, at particular times, visual representations of those places may be key actors in how those places are made and remade. The paper thus attests to the potential agency of art in production of ruralities.

Koowarta: A Warrior for Justice: A Brief History of Queensland's Racially Discriminatory Legislation and the Aboriginal Litigants Who Fought It

The Koowarta case was one of several that began in the 1970s when indigenous people took action against racial discrimination and denial of rights to land by the Queensland government. The granting of mining leases over Aboriginal reserves instigated further litigation, including the Peinkinna and Wik cases. To understand the decision by the Queensland cabinet to deprive Koowarta of the land transfer of the pastoral lease purchased by the Aboriginal Land Commission, and the events that followed his case, this article details the history of ‘native’ administration in that state. Late in the history of this ‘protectorate’, the mining industry (and its generous treatment by the Queensland government) led to abuses of the Aboriginal peoples of the western region of Cape York Peninsula. The Koowarta case laid the ground for the recognition of native title in pastoral leases, a matter which John Koowarta's neighbours, the Wik, Thaayorre and Alngith peoples, pursued with the same determination.

Maximising safety and environmental performance during onshore seismic acquisition using cable-less technology

Recent advances in the acquisition of onshore seismic data without cables have greatly reduced impacts on environmental and heritage values and increased recording efficiency. Onshore oil and gas exploration has expanded significantly across Australia. As a result, the need to gather quality data while reducing the environmental, social, and safety impacts of the activities has driven innovation in exploration technologies. In WA, exploration permits are granted for areas that include privately held farm land, pastoral leases or unallocated crown land. This can result in tensions between exploration companies, their contractors, and land holders. Cable-less seismic data acquisition systems provide significant opportunities to reduce the environmental, community, and safety impacts. Cable-less systems typically require significantly fewer trips along the acquisition line, considerably reducing the likelihood of negative impacts on plants, animals, and soils in the area. Other benefits include reducing fuel consumption, vehicle and traffic movement and the risk of injury to the seismic crew associated with the deployment of cables. This extended abstract reviews the recent use of a cable-less system for Fleet Resources’ seismic acquisition conducted by Terrex Seismic in the Carnarvon Basin, WA, demonstrating the environmental, social, and safety benefits compared with traditional cabled systems for both 3D and 2D seismic programs. This extended abstract also draws on the experiences of Terrex’s use of the technology on behalf of UIL Energy and it explores the opportunities for capturing these benefits during the preparation of environmental and safety plans for regulatory approval.

Working Knowledge: characterising collective indigenous, scientific, and local knowledge about the ecology, hydrology and geomorphology of Oriners Station, Cape York Peninsula, Australia

The term, Working Knowledge, is introduced to describe the content of a local cross-cultural knowledge recovery and integration project focussed on the indigenous-owned Oriners pastoral lease near Kowanyama on the Cape York Peninsula, Queensland. Social and biophysical scientific researchers collaborated with indigenous people, non-indigenous pastoralists, and an indigenous natural resource management (NRM) agency to record key ecological, hydrological and geomorphological features of this intermittently occupied and environmentally valuable ‘flooded forest’ country. Working Knowledge was developed in preference to ‘local’ and/or ‘indigenous’ knowledge because it collectively describes the contexts in which the knowledge was obtained (through pastoral, indigenous, NRM, and scientific labour), the diverse backgrounds of the project participants, the provisional and utilitarian quality of the collated knowledge, and the focus on aiding adaptive management. Key examples and epistemological themes emerging from the knowledge recovery research, as well as preliminary integrative models of important hydro-ecological processes, are presented. Changing land tenure and economic regimes on surrounding cattle stations make this study regionally significant but the Working Knowledge concept is also useful in analysing the knowledge base used by the wider contemporary indigenous land management sector. Employees in this expanding, largely externally funded, and increasingly formalised sector draw on a range of knowledge in making operational decisions – indigenous, scientific, NRM, bureaucratic and knowledge learned in pastoral and other enterprises. Although this shared base is often a source of strength, important aspects or precepts of particular component knowledges must necessarily be deprioritised, compromised, or even elided in everyday NRM operations constrained by particular management logics, priorities and funding sources. Working Knowledge accurately characterised a local case study, but also invites further analysis of the contemporary indigenous NRM knowledge base and its relationship to the individual precepts and requirements of the indigenous, scientific, local and other knowledges which respectively inform it.

Effects of adjacent land tenure on visitor use of Ningaloo Marine Park, Western Australia

Although many marine parks are located adjacent to coastlines with a variety of tenures, the influence of this tenure on visitor use is poorly known. Ningaloo Marine Park in Western Australia adjoins the coast along its entire 300 kilometre length and is accessed via several land tenure types that encapsulate a suite of attributes (i.e. services, facilities and management controls). The effect of tenure on visitor and visit characteristics, and recreational activities, was investigated using 1208 visitor surveys. Visitor origin and length of stay varied significantly among tenures, while repeat visitation and site fidelity were high, especially on pastoral leases. Although a wide range of recreational activities occurred in the marine park adjacent to all tenures, the percentage of respondents involved in activities such as fishing, sailing sports and snorkelling varied among tenures. These results highlight the influence of a mix of tenures, and accompanying attributes, on visitor use of an adjacent marine park. Although this provides a challenge for managers of marine parks with an extensive coastal interface in achieving the dual objectives of conservation and recreation, it also contributes to a diversity of visitor experiences.