Naracoorte woodlands

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Naracoorte woodlands
Naracoorte Coastal Plain
Sheep and vines.JPG
Sheep and vines, Limestone Coast wine region
IBRA 6.1 Naracoorte Coastal Plain.png
Map of the ecoregion
Ecology
Realm Australasian
Biome Mediterranean forests, woodlands, and scrub
Borders Murray-Darling woodlands and mallee and Southeast Australia temperate forests
Geography
Area24,431 km2 (9,433 sq mi)
Country Australia
States South Australia and Victoria
Coordinates 36°57′S140°21′E / 36.95°S 140.35°E / -36.95; 140.35 Coordinates: 36°57′S140°21′E / 36.95°S 140.35°E / -36.95; 140.35
Conservation
Conservation status Critical/endangered
Protected2,326 km² (10%) [1]

The Naracoorte woodlands is an ecoregion in southern Australia. It covers the Naracoorte coastal plain in southeastern South Australia and southwestern Victoria. It is coterminous with the Naracoorte Coastal Plain IBRA region. Only 10% of the ecoregion's area still has its original vegetation; most has been converted to agriculture and pasture. [2] [3] [4] [5]

Contents

Location and description

The topography is generally low, either flat or gently undulating. There are extensive coastal dunes with saltwater, brackish, and freshwater lakes and wetlands. Many of the soils are sandy. Others areas are made up of calcrete; the area is known as the Limestone Coast. [2]

The ecoregion is bounded on the southeast by the Southeast Australia temperate forests ecoregion, and the Mount Gambier area is a western outlier of that ecoregion. The Murray-Darling woodlands and mallee lies to the north and east, and includes the Murray River estuary which bounds the Naracoorte woodlands on the north. The Great Australian Bight lies to the south and west.

Climate

The ecoregion has a mild Mediterranean climate with a strong maritime influence that moderates temperature extremes. Rainfall ranges from 850 mm in the wetter southern areas to 400 mm in the driest inland and northern areas. [2]

Flora

The original vegetation includes open sclerophyll forests in areas with higher rainfall and well-drained soils, and open woodlands and shrublands in drier areas. low shrubland (heath) grew in sandy soils and stabilized dunes. Open woodlands of river red gum (Eucalyptus camaldulensis) are found in seasonally-waterlogged areas. Swamps and wet meadows of the tussock sedge Gahnia grow in the wettest areas. [2]

Fauna

The ecoregion's extensive wetlands and coastal lakes are important habitat for migratory and resident water birds.

The ecoregion has few endemic or near-endemic species. The endangered orange-bellied parrot (Neophema chrysogaster) overwinters in the vegetated coastal dunes and saltmarshes. The endangered swift parrot (Lathamus discolor) and regent honeyeater (Anthochaera phyrigia) have been mostly extirpated from habitat loss. [2]

Protected areas

A 2017 assessment found that 2,326 km2, or 10%, of the ecoregion is in protected areas. [1] Most of the protected areas are small, and preserve coastal dunes and wetlands. The more extensive ones include Coorong National Park, Messent Conservation Park, Canunda National Park, and Mount Richmond National Park.

Related Research Articles

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California interior chaparral and woodlands Mediterranean forests, woodlands, and scrub ecoregion in California, United States

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Carpentaria tropical savanna

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Mulga Lands

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Wide Bay Military Reserve

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Iberian sclerophyllous and semi-deciduous forests

The Iberian sclerophyllous and semi-deciduous forests is a Mediterranean forests, woodlands, and scrub ecoregion in southwestern Europe. It occupies the interior valleys and plateaus of the Iberian Peninsula. The ecoregion lies mostly in Spain, and includes some portions of eastern Portugal.

Northeastern Spain and Southern France Mediterranean forests

The Northeastern Spain and Southern France Mediterranean forests is a Mediterranean forests, woodlands, and scrub ecoregion in southwestern Europe. It occupies the Mediterranean coastal region of northeastern Spain and Southern France, and the Balearic Islands.

Southeastern Iberian shrubs and woodlands

The Southeastern Iberian shrubs and woodlands is a Mediterranean forests, woodlands, and scrub ecoregion in southwestern Europe. It lies southwestern coastal Spain, along the Mediterranean Sea.

Southeast Australia temperate forests Terrestrial ecoregion in Australia

The Southeast Australia temperate forests is a temperate broadleaf and mixed forests ecoregion of south-eastern Australia. It includes the temperate lowland forests of southeastern Australia, at the southern end of the Great Dividing Range. Vegetation ranges from wet forests along the coast to dry forests and woodlands inland.

References

  1. 1 2 Dinerstein, Eric; Olson, David; et al. (June 2017). "An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm". BioScience. 67 (6): 534–545. doi: 10.1093/biosci/bix014 . PMC   5451287 . PMID   28608869.CS1 maint: date and year (link) Supplemental material 2 table S1b.
  2. 1 2 3 4 5 "Naracoorte woodlands". Terrestrial Ecoregions. World Wildlife Fund.
  3. "Map of Ecoregions 2017". Resolve. Retrieved 20 August 2021.
  4. "Naracoorte woodlands". Digital Observatory for Protected Areas. Retrieved 20 August 2021.
  5. "Naracoorte woodlands". The Encyclopedia of Earth. Retrieved 20 August 2021.