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Western Australia Pastoral Land Tenure - Murchison Region
No full textA map of the Murchison region of Western Australia showing the pastoral lease boundaries and names and their tenure. Includes an index of pastoral leases.https://library.dpird.wa.gov.au/gis_maps/1016/thumbnail.jp
Western Australia Pastoral Land Tenure - Pilbara Region
No full textA map of the Pilbara region of Western Australia showing the pastoral lease boundaries and names and their tenure. Includes an index of pastoral leases.https://library.dpird.wa.gov.au/gis_maps/1015/thumbnail.jp
Editorial: Recent advances in research and development for vegetable crops under protected cultivation
No full textProtected cultivation is the production of horticultural crops including vegetables under structures such as forced-ventilated greenhouses, shade net houses, poly houses, net houses, high and low plastic tunnels, where the external growing environment can be controlled or modified to suit crop growth requirements. In regions where the environmental conditions such as weather, soil and water are not suitable to grow specific vegetables, or in urban areas with limited arable land, this farming system is very important to ensure high, stable productivity and good quality vegetables. This enables a stable supply for the market all year round, bringing high economic return to growers. This research area has been receiving much attention from the commercial vegetable production sector and scientific community. With the aim to contribute to the understanding of this research area, this Research Topic was designed to collect the latest scientific research and development in protected cropping for commercial vegetable production. Eight original research and review articles were already published with the invaluable contribution of 54 authors coming from 20 research institutions in 7 countries. This editorial summarises key highlights from the articles contributed to this theme
Carbon neutral by 2030 - Katanning Research Station
No full textThe Department of Primary Industries and Regional Development\u27s (DPIRD) Katanning Research Station (KRS) is developing practical techniques and methods for mitigating carbon emissions from the livestock industry.
This research will help the livestock industry in Western Australia (WA) access anticipated future markets for carbon neutral food and fibre products
Fire and ant interactions mediated by honeydew and extrafloral nectar in an australian tropical savanna
No full textFire is a major disturbance affecting ecosystems globally, but its impact on mutualisms has received minimal attention. Here, we use a long-term field experiment to investigate the impact of different fire regimes on globally important ant–honeydew and ant–extrafloral nectar (EFN) mutualistic interactions in an Australian tropical savanna. These interactions provide ants with a key energy source, while their plant and hemipteran hosts receive protection services. We examined ant interactions on species of Eucalyptus (lacking EFNs) and Acacia (with EFNs) in three replicate plots each of burning every 2 and 3 years early in the dry season, burning late in the dry season every 2 years, and unburnt for \u3e 25 years. The proportions of plants with ant–honeydew interactions in Acacia (44.6%) and Eucalyptus (36.3%) were double those of Acacia plants with ant–EFN interactions (18.9%). The most common ants, representing 85% of all interactions, were behaviourally dominant species of Oecophylla, Iridomyrmex and Papyrius. Fire promoted the incidence of ant interactions, especially those involving EFNs on Acacia, which occurred on only 3% of plants in unburnt plots compared with 24% in frequently burnt plots. Fire also promoted the relative incidence of behaviourally dominant ants, which are considered the highest quality mutualists. Contrary to expectations, frequent fire did not result in a switching of behaviourally dominant ant partners from forest-adapted Oecophylla to arid-adapted Iridomyrmex. Our findings that frequent fire increases ant interactions mediated by honeydew and extrafloral nectar, and promotes the quality of ant mutualists, have important implications for protective services provided by ants in highly fire-prone ecosystems
Fisheries Science Update - Crabbing in Cockburn Sound
No full textKey points: 2024 stock assessment outcomes The Cockburn Sound blue swimmer crab resource spans the waters of Cockburn Sound and Owen Anchorage north to the port of Fremantle. The Cockburn Sound crab stock is assessed periodically by the Department of Primary Industries and Regional Development (DPIRD) via weight of evidence stock assessments. Despite most of Cockburn Sound remaining closed to blue swimmer crab fishing since 2014, crab abundance levels have shown little increase. Current modelling suggests that Cockburn Sound now supports a notably lower crab population than in the early 2000s and can sustain a significantly reduced annual catch. This change is understood to be environmentally driven, as measures implemented to reduce the nutrient load entering Cockburn Sound have reduced primary productivity and thus food for crabs
Evaluation of dual purpose canola and cereals grazed with cattle
No full textThe Department of Primary Industries and Regional Development conducted research to investigate and demonstrate the importance of dual-purpose crops (canola, wheat and barley) to improve the feed availability for cattle (in late autumn to early winter) in mixed farming systems of the high rainfall environment of Western Australia (WA).
The grain yield of a wide range of canola and cereal varieties sown in mid-April were unaffected by the grazing of cattle at a stocking rate of 20 to 22 dry sheep equivalent (DSE) per hectare (ha) for up to 4 weeks at Esperance in 2011.
The grazed crops yielded the same as ungrazed crops sown at currently recommended times
To hold or sell breeding cattle in the rangelands
No full textIn a dry season where feed, water and finances are limited, removing less productive animals as soon as possible is a good option. This will free up feed for more productive animals and help preserve ground cover.
This page provides some of the information and a process for making decisions about holding or selling breeding cattle
Rubber vine and its control
No full textRubber vine, Palay rubbervine, India rubbervine (Cryptostegia grandiflora) is a declared pest in Western Australia (WA). Rubber vine chokes river catchment areas and is highly toxic to livestock
Managing salinity: fence and volunteer pasture
No full textThis treatment is recommended for saline sites that can support a mix of salt tolerant species and some non-tolerant pasture species, where livestock are present. It may also be the preferred solution for farmers who wish to see an improvement in their land at low cost.
The department recommends that any dryland salinity management is part of a whole farm, and preferably a whole catchment, water management plan