Illawarra-Shoalhaven Subtropical Rainforest of the Sydney Basin Bioregion | |
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Ecology | |
Realm | Australasia |
Biome | Temperate Broadleaf and Mixed Forests |
Borders | |
Geography | |
Country | Australia |
Elevation | 50–400 metres (160–1,310 ft) |
Coordinates | 34°12′S151°01′E / 34.2°S 151.01°E |
Geology | Monzonite |
Climate type | Oceanic climate (Cfb) |
Soil types | Colluvium |
The Illawarra-Shoalhaven subtropical rainforest, or Illawarra Subtropical Rainforest (ISR), is a scattered rainforest community in the Illawarra region of New South Wales, Australia. Occurring just south of Sydney, it spans from the Royal National Park (north of Wollongong) to the Milton-Ulladulla district in the south, albeit in scattered fragments. [1]
A mostly low to moderately tall closed rainforest with a dense mixed tree canopy, it is present on the coastal plain and on foothills beneath the precipitous slopes of the coastal escarpment, on comparatively fertile soils on the slopes and benches of the Illawarra Escarpment and across the Illawarra lowlands on the seaboard, seldom extending onto the upper slopes of the Escarpment.
Most of it is present between Gerringong and Stanwell Park, where it spans south to the Shoalhaven River and west into Kangaroo Valley, where other areas of fertile soils are present (e.g. volcanics, coal measures, or colluvial sediments from the escarpment). It is also found in on rocky scree and in deep gully lines. It is found in Local Government Areas (LGAs) of Kiama, Shellharbour, Shoalhaven, Sutherland and Wollongong; and may be present in contiguous LGAs such as Goulburn, Mulwaree and Wingecarribee. [2]
It is found in an area that is warm and humid, with higher rainfall in autumn, lower rainfall in late winter to spring and little possibility of severe frosts. Mean annual rainfall is greater than 1000 mm. [1]
There is a scarcity of species from the genera Syncarpia, Acacia, Banksia , and Eucalyptus due to the moist, fertile soil. Canopy trees up to 35 m or more in height include Ficus spp., Dendrocnide excelsa, Toona ciliata, Dendrocnide excelsa, Streblus brunonianus , and Alphitonia excelsa .
Other smaller trees and shrubs include Alectryon subcinereus, Alphitonia excelsa, Baloghia inophylla, Brachychiton acerifolius, Citronella moorei, Claoxylon australe, Cryptocarya glaucescens, Cryptocarya microneura, Diospyros australis, Diospyros pentamera, Diploglottis australis, Ehretia acuminata, Elaeodendron australe, Guioa semiglauca, Myrsine variabilis, Pennantia cunninghamii , and Planchonella australis , in addition to climbers, forbs and native grasses. [1]
In addition to native bats, wallabies and possums, birds include Gerygone mouki, Pachycephala pectoralis, Meliphaga lewinii, Rhipidura albiscapa, Sericornis citreogularis, Acanthiza pusilla, Psophodes olivaceus, Monarcha melanopsis, Zosterops lateralis, Rhipidura rufifrons, Sericornis frontalis, Eopsaltria australis, Macropygia amboinensis , and Platycercus elegans .
Reptiles and amphibians include Intellagama lesueurii, Litoria citropa, Litoria peronii, Litoria phyllochroa, Litoria verreauxii , and Eulamprus quoyii . [1]
Wollongong, colloquially referred to as The Gong, is a city located in the Illawarra region of New South Wales, Australia. The name is believed to originate from the Dharawal language, meaning either 'five islands/clouds', 'ground near water' or 'sound of the sea'. Wollongong lies on the narrow coastal strip between the Illawarra Escarpment and the Pacific Ocean, 85 kilometres south of central Sydney. Wollongong had an estimated urban population of 302,739 at June 2018, making it the third-largest city in New South Wales after Sydney and Newcastle and the tenth-largest city in Australia by population. The city's current Lord Mayor is Gordon Bradbery AM who was elected in 2021.
The Illawarra is a coastal region in the southeast of the Australian state of New South Wales. It is situated immediately south of Sydney and north of the South Coast region. It encompasses the two cities of Wollongong, Shellharbour and the coastal town of Kiama. Wollongong is the largest city of the Illawarra with a population of 240,000, then Shellharbour with a population of 70,000 and Kiama with a population of 10,000. These three cities have their own suburbs. Wollongong stretches from Otford in the north to Windang in the south, with Maddens Plains and Cordeaux in the west.
Mount Keira is a suburb and mountain in the Illawarra region of New South Wales, Australia.
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