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| Great Western Woodlands | |
|---|---|
| Name | Great Western Woodlands |
| Location | Western Australia |
| Area | ~16e6 ha |
| Established | 2000s |
| Nearest city | Perth, Western Australia |
| Biome | Mediterranean forests, woodlands, and scrub |
| Coordinates | 30°S 121°E |
Great Western Woodlands The Great Western Woodlands are an extensive ecoregion in Western Australia noted for high botanical diversity and ancient landscapes. The area spans large parts of the Goldfields-Esperance region, borders the Nullarbor Plain, and lies inland from Eyre Highway corridors; it has been the focus of research by institutions such as the University of Western Australia, the CSIRO, and the Australian National University. Conservation planning has involved agencies including the Department of Biodiversity, Conservation and Attractions (Western Australia), Australian Department of Agriculture, Water and the Environment, and non-government groups like the Australian Conservation Foundation and Bush Heritage Australia.
The region occupies roughly 16 million hectares between the Swan Coastal Plain and the Nullarbor Plain, incorporating parts of the Shire of Coolgardie, Shire of Dundas, Shire of Ravensthorpe, and Shire of Esperance. Prominent localities include Kalgoorlie, Coolgardie, Norseman, Esperance, Western Australia, and Hyden, Western Australia near the Wave Rock. The Woodlands overlap bioregions defined by the Interim Biogeographic Regionalisation for Australia and adjoin the Eyre Peninsula corridor and the Mallee Woodlands and Shrublands ecoregion. Transport routes such as the Great Eastern Highway, Eyre Highway, and the Trans-Australian Railway cross or skirt its boundaries; mining centers like Super Pit (Kalgoorlie) and companies including BHP and Rio Tinto have operations nearby.
Underlain by some of the oldest continental crust on Earth, the area includes the Yilgarn Craton with granite outcrops, greenstone belts, and weathered regolith. Key geological features are the Stirling Range, ancient shears, and lateritic plates formed during the Archean and Proterozoic; mineral deposits include gold at Kalgoorlie and nickel at Kambalda. Soils range from deep siliceous sands to red earths and laterites; soil scientists from the CSIRO and Commonwealth Scientific and Industrial Research Organisation projects have studied pedogenesis alongside exploration by companies such as WMC Resources and research by the Geological Survey of Western Australia. Paleoclimate records from cores and studies by the Australian National University link regolith profiles to Quaternary oscillations and megafaunal extinctions discussed in literature referencing Lake Mungo and King Island records.
The region experiences a Mediterranean climate gradient with winter rainfall influenced by shifting southern westerlies and summer heat waves linked to the Indian Ocean Dipole and El Niño–Southern Oscillation. Hydrological features include ephemeral drainage systems, springs such as those near Norseman, and groundwater in the Yilgarn Basin exploited in bores for pastoral use; hydrologists from the Bureau of Meteorology and Geoscience Australia have modelled recharge processes. Seasonal fire regimes interact with rainfall patterns monitored by programs associated with the Australian Fire and Emergency Service Authorities Council and research at the University of Adelaide and Curtin University.
The Woodlands host exquisite plant diversity with eucalypt woodlands dominated by genera like Eucalyptus, Banksia, and Acacia, and an extraordinary display of wildflowers that attract research from botanists at the Royal Botanic Gardens, Kew collaborations and the Western Australian Herbarium. Fauna includes marsupials such as the Numbat, Quokka, and Western Pygmy Possum, birds including the Malleefowl, Galah, and Carnaby's Black-Cockatoo, reptiles like the Thorny Devil, and invertebrate assemblages studied by entomologists at the Australian Museum. Many species are endemic or range-restricted, prompting listings under the Environment Protection and Biodiversity Conservation Act 1999 and recovery actions by BirdLife Australia and the Australian Wildlife Conservancy.
Traditional owners include groups such as the Ngadju people, Wongi people, Bibbulman people, and neighbouring nations with songlines and trade routes connected to sites like the Great Victoria Desert margins and rock art loci akin to those at Murujuga and Buccan. Cultural heritage surveys by the Australian Institute of Aboriginal and Torres Strait Islander Studies and native title determinations in the Federal Court of Australia recognize sacred sites, stone tool scatters, and seasonal camps; Indigenous ranger programs partner with NGOs and agencies like Parks Australia and the National Native Title Tribunal for co-management and cultural burning, drawing on traditional ecological knowledge documented by researchers at the Australian Institute of Aboriginal and Torres Strait Islander Studies and universities including Griffith University.
Land uses include mining, pastoralism, tourism, and conservation reserves such as those overseen by the Department of Biodiversity, Conservation and Attractions (Western Australia), with private reserves managed by organizations like Bush Heritage Australia and Conservation Volunteers Australia. Tools for landscape management draw on frameworks from the IUCN, the Convention on Biological Diversity, and national programs including the National Reserve System. Collaborative management involves industry stakeholders such as Fortescue Metals Group and heritage agreements negotiated through the National Native Title Tribunal and corporations like Indigenous Land Council entities. Research and monitoring partnerships include the Australian Research Council and citizen science platforms like Atlas of Living Australia.
Threats encompass invasive species such as Feral cat, European rabbit, and Feral goat, altered fire regimes studied by ecologists at the University of Western Australia and Murdoch University, land clearing for mining by companies like Wesfarmers, and climate change impacts linked to the Intergovernmental Panel on Climate Change. Restoration initiatives involve feral animal control programs, invasive plant eradication partnering with Department of Biodiversity, Conservation and Attractions (Western Australia), ecological restoration by Greening Australia, and revegetation trials supported by the Commonwealth Scientific and Industrial Research Organisation. Conservation campaigns by the Australian Conservation Foundation and scientific assessments in journals such as Austral Ecology and Journal of Biogeography aim to secure long-term protection through expansion of reserves and Indigenous co-management models endorsed by international mechanisms like the Convention on Biological Diversity and national funding via the National Landcare Program.
Category:Biogeography of Western Australia