Mount Gibson Sanctuary is a

nature reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, or features of geological or ...

on the northern edge of the Wheatbelt and the southern margin of uncleared

rangeland Rangelands are grasslands, shrublands, woodlands, wetlands, and deserts that are grazed by domestic livestock or wild animals. Types of rangelands include tallgrass and shortgrass prairies, desert grasslands and shrublands, woodlands, savannas ...

country, north-east of

Perth Perth is the capital and largest city of the Australian state of Western Australia. It is the fourth most populous city in Australia and Oceania, with a population of 2.1 million (80% of the state) living in Greater Perth in 2020. Perth is ...

in mid-west

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...

. The nearest large town is Dalwallinu. It is in the Avon-Wheatbelt

Bioregion A bioregion is an ecologically and geographically defined area that is smaller than a biogeographic realm, but larger than an ecoregion or an ecosystem, in the World Wide Fund for Nature classification scheme. There is also an attempt to use the ...

and is owned and managed by the

Australian Wildlife Conservancy The Australian Wildlife Conservancy (AWC) is an Australian independent, nonprofit organisation, working to conserve threatened wildlife and ecosystems in Australia. This is principally achieved through the acquisition of extensive areas of land ...

(AWC).

History

Mount Gibson is a former

pastoral lease A pastoral lease, sometimes called a pastoral run, is an arrangement used in both Australia and New Zealand where government-owned Crown land is leased out to graziers for the purpose of livestock grazing on rangelands. Australia Pastoral lease ...

, first granted in 1915 and used mainly for sheep grazing. More recently it was managed for its environmental values. It was acquired by AWC in 2001. Current programs include removal and control of feral animals, rehabilitation of degraded areas, and

wildfire A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of Combustibility and flammability, combustible vegetation. Depending on the type of vegetation present, a wildfire ...

management.AWC: Mount Gibson: History

Landscape and climate

Mount Gibson contains rocky ranges, floodplains, claypans, salt-lakes and sand-plains. The climate is semi-arid with winter rainfall and hot, dry summers. Average annual rainfall is .AWC: Mt Gibson

Ecosystems

Floristically, Mount Gibson contains elements of both the south-west region and the arid zone, due to its transitional location on the

mulga-eucalypt line The mulga-eucalypt line, or mulga-eucalypt boundary line, marks a boundary between '' Acacia''-dominated shrublands and ''Eucalyptus''-dominated open woodlands across Western Australia. It runs across the north of the Eastern Goldfields, and throu ...

. Much of the reserve is dominated by Wheatbelt flora, largely cleared elsewhere, including extensive

eucalypt Eucalypt is a descriptive name for woody plants with capsule fruiting bodies belonging to seven closely related genera (of the tribe Eucalypteae) found across Australasia: ''Eucalyptus'', '' Corymbia'', '' Angophora'', ''Stockwellia'', ''Allosyn ...

woodland A woodland () is, in the broad sense, land covered with trees, or in a narrow sense, synonymous with wood (or in the U.S., the ''plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunlight and limited shade (see ...

s, with stands of

salmon gum ''Eucalyptus salmonophloia'', commonly known as salmon gum, wurak or weerluk or woonert or marrlinja. is a species of small to medium-sized tree that is endemic to Western Australia. It has smooth bark, narrow lance-shaped to curved adult leave ...

York gum ''Eucalyptus loxophleba'', commonly known as York gum, daarwet, goatta, twotta or yandee, is a species of tree or mallee that is endemic to Western Australia. It has rough bark on the trunk, smooth olive to brownish bark above, lance-shaped adul ...

and gimlet.

Fauna

Both

red Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and a secondar ...

and

western grey kangaroo The western grey kangaroo (''Macropus fuliginosus''), also referred to as a western grey giant kangaroo, black-faced kangaroo, mallee kangaroo, sooty kangaroo and (when referring to the Kangaroo Island subspecies) Kangaroo Island grey kangaroo, is ...

s are found on the reserve, emphasizing the transitional nature of its location. Other mammals are Mitchell's hopping mouse and the

little long-tailed dunnart The Little long-tailed dunnart (''Sminthopsis dolichura'') is a dunnart that was, along with Gilbert's dunnart, described in 1984. The length from snout to tail is of which head and body are and tail long. Hind foot size is , the ear length is ...

. Significant bird species include

malleefowl The malleefowl (''Leipoa ocellata'') is a stocky ground-dwelling Australian bird about the size of a domestic chicken (to which it is distantly related). It is notable for the large nesting mounds constructed by the males and lack of parental ca ...

Major Mitchell's cockatoo Major Mitchell's cockatoo (''Lophochroa leadbeateri''), also known as Leadbeater's cockatoo or the pink cockatoo, is a medium-sized cockatoo that inhabits arid and semi-arid inland areas of Australia, though it is seen regularly in other climat ...

and

regent parrot The regent parrot or rock pebbler (''Polytelis anthopeplus'') is a bird found in southern Australia. It has predominantly yellow plumage with a green tail. The bird is found primarily in eucalyptus groves and other wooded areas of subtropical s ...

. An indicator of floristic richness is a collection of over 100 species of native bees on the property.AWC: Mount Gibson: Wildlife

Important Bird Area

The sanctuary, along with the neighbouring

Charles Darwin Reserve Charles Darwin Reserve is a nature reserve in the north east of the wheatbelt region of Western Australia. Description It is 90 km from Wubin and 355 km north of Perth. It lies largely within the Southwestern Botanical Province on t ...

, forms part of the Mount Gibson and Charles Darwin

Important Bird Area An Important Bird and Biodiversity Area (IBA) is an area identified using an internationally agreed set of criteria as being globally important for the conservation of bird populations. IBA was developed and sites are identified by BirdLife Int ...

(IBA), so identified by

BirdLife International BirdLife International is a global partnership of non-governmental organizations that strives to conserve birds and their habitats. BirdLife International's priorities include preventing extinction of bird species, identifying and safeguarding ...

principally because it supports populations of malleefowl and

western corella The western corella (''Cacatua pastinator'') also known as the western long-billed corella, is a species of white cockatoo endemic to south-western Australia. Taxonomy Cacatuidae is one of three families of the large and diverse avian order Psit ...

s, as well as several other species restricted to either the

arid A region is arid when it severely lacks available water, to the extent of hindering or preventing the growth and development of plant and animal life. Regions with arid climates tend to lack vegetation and are called xeric or desertic. Most ar ...

or mallee

biome A biome () is a biogeographical unit consisting of a biological community that has formed in response to the physical environment in which they are found and a shared regional climate. Biomes may span more than one continent. Biome is a broader ...

References

External links

Australian Wildlife Conservancy
{{AWC Reserves Nature reserves in Western Australia Australian Wildlife Conservancy reserves Shire of Yalgoo Important Bird Areas of Western Australia 2001 establishments in Australia