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Interim Biogeographic Regionalisation for Australia

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IBRA version 7 map

The Interim Biogeographic Regionalisation for Australia (IBRA) is a biogeographic regionalisation of Australia developed by the Australian government's Department of Sustainability, Environment, Water, Population, and Communities. It was developed for use as a planning tool, for example for the establishment of a national reserve system. The first version of IBRA was developed in 1993–94 and published in 1995.[1]

Within the broadest scale, Australia is a major part of the Australasia biogeographic realm, as developed by the World Wide Fund for Nature. Based on this system, the world is also split into 14 terrestrial habitats, of which eight are shared by Australia. The Australian land mass is divided into 89 bioregions and 419 subregions. Each region is a land area made up of a group of interacting ecosystems that are repeated in similar form across the landscape.

IBRA is updated periodically based on new data, mapping improvements, and review of the existing scheme. The most recent version is IBRA7, developed during 2012, which replaced IBRA6.1.

IBRA regions and subregions

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This is a list of region and subregions under IBRA7. Region codes are given in parentheses, followed by area, where known. Images of regions are from IBRA6.1, pending creation of maps for IBRA7.

IBRA 6.1 regions map

A

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Arnhem Coast ARC 3,335,669 hectares (8,242,620 acres) NT
Murgenella ARC01 113,180 ha (279,700 acres)
Maningrida ARC02 1,741,376 ha (4,303,030 acres)
Nhulunbuy ARC03 1,159,659 ha (2,865,580 acres)
Groote ARC04 268,735 ha (664,060 acres)
Wessels ARC05 52,720 ha (130,300 acres)
Arnhem Plateau ARP 2,306,023 hectares (5,698,310 acres) NT
Alligator ARP01 1,038,621 ha (2,566,490 acres)
Mainoru ARP02 1,267,401 ha (3,131,820 acres)
Australian Alps AUA 1,232,981 hectares (3,046,760 acres) NSW, Vic
Snowy Mountains AUA01 713,114 ha (1,762,140 acres)
Victorian Alps AUA02 519,866 ha (1,284,620 acres)
Avon Wheatbelt AVW 9,517,104 hectares (23,517,280 acres) WA
Merredin AVW01 6,524,175 ha (16,121,590 acres)
Katanning AVW02 2,992,929 ha (7,395,690 acres)

B

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Ben Lomond BEL 657,500 hectares (1,625,000 acres) Tas
Ben Lomond (subregion) BEL01
Brigalow Belt North BBN 33,790,510 hectares (83,498,200 acres) Qld
Townsville Plains BBN01 763,495 ha (1,886,640 acres)
Bogie River Hills BBN02 1,054,392 ha (2,605,460 acres)
Cape River Hills BBN03 747,393 ha (1,846,850 acres)
Beucazon Hills BBN04 95,821 ha (236,780 acres)
Wyarra Hills BBN05 397,935 ha (983,320 acres)
Northern Bowen Basin BBN06 1,316,957 ha (3,254,270 acres)
Belyando Downs BBN07 1,772,127 ha (4,379,020 acres)
Upper Belyando Floodout BBN08 466,275 ha (1,152,190 acres)
Anakie Inlier BBN09 382,284 ha (944,640 acres)
Basalt Downs BBN10 1,274,731 ha (3,149,930 acres)
Isaac-Comet Downs BBN11 2,693,397 ha (6,655,530 acres)
Nebo-Connors Ranges BBN12 449,269 ha (1,110,170 acres)
South Drummond Basin BBN13 1,009,244 ha (2,493,900 acres)
Marlborough Plains BBN14 1,250,611 ha (3,090,330 acres)
Brigalow Belt South BBS 27,219,776 hectares (67,261,530 acres) Qld / NSW
Claude River Downs BBS01 1,026,214 ha (2,535,830 acres)
Woorabinda BBS02 749,785 ha (1,852,760 acres)
Boomer Range BBS03 220,541 ha (544,970 acres)
Mount Morgan Ranges BBS04 1,275,970 ha (3,153,000 acres)
Callide Creek Downs BBS05 30,133 ha (74,460 acres)
Arcadia BBS06 715,288 ha (1,767,520 acres)
Dawson River Downs BBS07 982,807 ha (2,428,570 acres)
Banana-Auburn Ranges BBS08 1,547,555 ha (3,824,090 acres)
Buckland Basalts BBS09 281,306 ha (695,120 acres)
Carnarvon Ranges BBS10 2,263,686 ha (5,593,690 acres)
Taroom Downs BBS11 652,005 ha (1,611,140 acres)
Southern Downs BBS12 4,264,666 ha (10,538,220 acres)
Barakula BBS13 1,301,712 ha (3,216,600 acres)
Dulacca Downs BBS14 162,442 ha (401,400 acres)
Weribone High BBS15 966,510 ha (2,388,300 acres)
Tara Downs BBS16 511,339 ha (1,263,550 acres)
Eastern Darling Downs BBS17 1,697,945 ha (4,195,710 acres)
Inglewood Sandstones BBS18 1,219,008 ha (3,012,230 acres)
Moonie-Commoron Floodout BBS19 750,661 ha (1,854,920 acres)
Moonie-Barwon Interfluve BBS20 765,231 ha (1,890,930 acres)
Northern Basalts BBS21 624,671 ha (1,543,600 acres)
Northern Outwash BBS22 700,241 ha (1,730,330 acres)
Pilliga Outwash BBS23 535,392 ha (1,322,980 acres)
Pilliga BBS24 1,732,137 ha (4,280,200 acres)
Liverpool Plains BBS25 941,752 ha (2,327,120 acres)
Liverpool Range BBS26 521,960 ha (1,289,800 acres)
Talbragar Valley BBS27 203,894 ha (503,830 acres)
Narrandool BBS28 303,754 ha (750,590 acres)
Broken Hill Complex BHC 5,635,422 hectares (13,925,430 acres) SA / NSW
Barrier Range BHC01 1,802,996 ha (4,455,300 acres)
Mootwingee Downs BHC02 630,694 ha (1,558,480 acres)
Scopes Range BHC03 260,806 ha (644,470 acres)
Barrier Range Outwash BHC04 1,954,973 ha (4,830,840 acres)
Bimbowrie BHC05 279,258 ha (690,060 acres)
Curnamona BHC06 706,696 ha (1,746,280 acres)
Burt Plain BRT 7,379,719 hectares (18,235,680 acres) NT
Yuendumu BRT01 2,931,061 ha (7,242,810 acres)
Atartinga BRT02 3,531,111 ha (8,725,570 acres)
Mount Chapple BRT03 390,981 ha (966,140 acres)
Dulcie BRT04 526,567 ha (1,301,180 acres)

C

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Cape York Peninsula CYP 12,256,457 hectares (30,286,360 acres) Qld
Coen - Yambo Inlier CYP01 2,312,126 hectares (5,713,390 acres)
Starke Coastal Lowlands CYP02 512,498 hectares (1,266,410 acres)
Cape York - Torres Strait CYP03 94,367 hectares (233,190 acres)
Jardine - Pascoe Sandstones CYP04 1,444,223 hectares (3,568,750 acres)
Battle Camp Sandstones CYP05 504,409 hectares (1,246,420 acres)
Laura Lowlands CYP06 1,791,228 hectares (4,426,220 acres)
Weipa Plateau CYP07 2,848,753 hectares (7,039,420 acres)
(Northern) Holroyd Plain CYP08 2,464,074 hectares (6,088,860 acres)
Coastal Plains CYP09 284,780 hectares (703,700 acres)
Carnarvon CAR 8,430,172 hectares (20,831,410 acres) WA
Cape Range CAR01 2,380,498 hectares (5,882,340 acres)
Wooramel CAR02 6,049,674 hectares (14,949,070 acres)
Central Arnhem CEA 3,462,433 hectares (8,555,860 acres) NT
Wilton CEA01 3,137,973 hectares (7,754,100 acres)
Parson CEA02 324,460 hectares (801,800 acres)
Central Kimberley CEK 7,675,587 hectares (18,966,790 acres) WA
Pentecost CEK01 4,397,260 hectares (10,865,900 acres)
Hart CEK02 2,324,667 hectares (5,744,380 acres)
Mount Eliza (Kimberley) CEK03 953,661 hectares (2,356,550 acres)
Central Mackay Coast CMC 1,464,208 hectares (3,618,140 acres) Qld
Whitsunday CMC01 89,179 hectares (220,370 acres)
Proserpine - Sarina Lowlands CMC02 466,498 hectares (1,152,740 acres)
Clarke - Connors Ranges CMC03 631,985 hectares (1,561,670 acres)
Byfield CMC04 127,697 hectares (315,550 acres)
Manifold CMC05 67,885 hectares (167,750 acres)
Debella CMC06 80,964 hectares (200,070 acres)
Central Ranges CER 10,164,044 hectares (25,115,900 acres) WA, NT, SA
Mann-Musgrave Block CER01 9,214,685 hectares (22,769,980 acres)
Wataru CER02 423,360 hectares (1,046,100 acres)
Everard Block CER03 525,998 hectares (1,299,770 acres)
Channel Country CHC 30,409,437 hectares (75,143,360 acres) NT, Qld, NSW, SA
Toko Plains CHC01 2,825,712 hectares (6,982,490 acres)
Sturt Stony Desert CHC02 8,945,360 hectares (22,104,500 acres)
Goneaway Tablelands CHC03 5,182,219 hectares (12,805,540 acres)
Diamantina-Eyre CHC04 1,456,544 hectares (3,599,200 acres)
Cooper-Diamantina Plains CHC05 4,136,121 hectares (10,220,580 acres)
Coongie CHC06 1,736,594 hectares (4,291,220 acres)
Lake Pure CHC07 1,204,027 hectares (2,975,220 acres)
Noccundra Slopes CHC08 1,798,759 hectares (4,444,830 acres)
Tibooburra Downs CHC09
Core Ranges CHC10 139,224 hectares (344,030 acres)
Bulloo CHC11 1,077,480 hectares (2,662,500 acres)
Bulloo Dunefields CHC12 1,326,712 hectares (3,278,380 acres)
Central Depression CHC13 580,685 hectares (1,434,900 acres)
Cobar Peneplain COP 7,385,346 hectares (18,249,590 acres) NSW
Boorindal Plains COP1 400,236 hectares (989,000 acres)
Barnato Downs COP2 1,773,542 hectares (4,382,520 acres)
Canbelego Downs COP3 2,001,425 hectares (4,945,630 acres)
Nymagee COP4 2,070,061 hectares (5,115,230 acres)
Lachlan Plains COP5 1,140,082 hectares (2,817,200 acres)
Coolgardie COO 12,912,209 hectares (31,906,760 acres) WA
Mardabilla COO1 1,843,125 hectares (4,554,460 acres)
Southern Cross COO2 6,010,838 hectares (14,853,100 acres)
Eastern Goldfields COO3 5,058,246 hectares (12,499,200 acres)
Coral Sea COS 17,167 hectares (42,420 acres)

D

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Daly Basin DAB 2,092,229 hectares (5,170,010 acres) NT
Daly Basin DAB01
Dampierland DAL 8,360,871 hectares (20,660,160 acres) WA
Fitzroy Trough DAL01 3,432,084 hectares (8,480,860 acres)
Pindanland DAL02 4,928,787 hectares (12,179,300 acres)
Darling Riverine Plains DRP 10,699,769 hectares (26,439,710 acres) Qld / NSW
Culgoa-Bokhara DRP01 1,354,799 hectares (3,347,780 acres)
Warrambool-Moonie DRP02 1,151,637 hectares (2,845,760 acres)
Castlereagh-Barwon DRP03 4,500,355 hectares (11,120,620 acres)
Bogan-Macquarie DRP04 1,999,951 hectares (4,941,990 acres)
Louth Plains DRP05 276,573 hectares (683,430 acres)
Wilcannia Plains DRP06 504,562 hectares (1,246,800 acres)
Menindee DRP07 653,935 hectares (1,615,910 acres)
Great Darling Anabranch DRP08 147,138 hectares (363,590 acres)
Pooncarie-Darling DRP09 110,819 hectares (273,840 acres)
Darwin Coastal DAC 2,843,199 hectares (7,025,700 acres) NT
Darwin Coastal DAC01
Davenport Murchison Ranges DMR 5,805,108 hectares (14,344,730 acres) NT
Ashburton Range DMR01 1,218,621 hectares (3,011,280 acres)
Davenport DMR02 1,589,590 hectares (3,928,000 acres)
Barkly DMR03 2,996,897 hectares (7,405,490 acres)
Desert Uplands DEU 6,941,095 hectares (17,151,820 acres) Qld
Prairie-Torrens Creeks Alluvials DEU01 1,580,384 hectares (3,905,210 acres)
Alice Tableland DEU02 2,866,760 hectares (7,083,900 acres)
Cape-Campaspe Plains DEU03 1,007,026 hectares (2,488,420 acres)
Jericho DEU04 1,486,926 hectares (3,674,270 acres)

E

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Einasleigh Uplands EIU 11,625,726 hectares (28,727,790 acres) Qld
Georgetown - Croydon EIU01 1,041,407 hectares (2,573,370 acres)
Kidston EIU02 2,929,528 hectares (7,239,020 acres)
Hodgkinson Basin EIU03 1,607,221 hectares (3,971,530 acres)
Broken River EIU04 3,309,590 hectares (8,178,200 acres)
Undara - Toomba Basalts EIU05 2,076,208 hectares (5,130,420 acres)
Herberton - Wairuna EIU06 661,771 hectares (1,635,270 acres)
Esperance Plains ESP 2,921,327 hectares (7,218,760 acres) WA
Fitzgerald ESP01 1,577,938 hectares (3,899,170 acres)
Recherche ESP02 1,343,390 hectares (3,319,600 acres)
Eyre Yorke Block EYB 6,120,409 hectares (15,123,860 acres) SA
Southern Yorke EYB01 438,470 hectares (1,083,500 acres)
St Vincent EYB02 1,093,789 hectares (2,702,810 acres)
Eyre Hills EYB03 1,172,576 hectares (2,897,500 acres)
Talia EYB04 1,096,175 hectares (2,708,710 acres)
Eyre Mallee EYB05 2,319,398 hectares (5,731,360 acres)

F

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Finke FIN 7,267,416 hectares (17,958,180 acres) NT / SA
Henbury FIN01 2,257,063 hectares (5,577,320 acres)
Finke River FIN02 1,601,516 hectares (3,957,430 acres)
Tieyon FIN03 2,505,610 hectares (6,191,500 acres)
Pedirka FIN04 903,228 hectares (2,231,920 acres)
Flinders Lofty Block FLB 6,615,765 hectares (16,347,910 acres) SA / NSW
Mount Lofty Ranges FLB01 300,580 hectares (742,700 acres)
Broughton FLB02 1,032,918 hectares (2,552,400 acres)
Olary Spur FLB02 1,745,479 hectares (4,313,170 acres)
Southern Flinders FLB04 728,317 hectares (1,799,710 acres)
Northern Flinders FLB05 1,846,804 hectares (4,563,550 acres)
Central Flinders FLB06 961,667 hectares (2,376,330 acres)
Furneaux FUR 537,543 hectares (1,328,300 acres) Tas / Vic
Wilsons Promontory FUR01 41,144 hectares (101,670 acres)
Flinders FUR02 496,398 hectares (1,226,630 acres)

G

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Gascoyne GAS 18,075,257 hectares (44,664,930 acres) WA
Ashburton GAS01 3,687,030 hectares (9,110,800 acres)
Carnegie GAS02 4,718,656 hectares (11,660,050 acres)
Augustus GAS03 9,669,571 hectares (23,894,030 acres)
Gawler GAW 12,002,883 hectares (29,659,770 acres) SA
Myall Plains GAW01 1,088,767 hectares (2,690,400 acres)
Gawler Volcanics GAW02 1,556,182 hectares (3,845,410 acres)
Gawler Lakes GAW03 2,049,193 hectares (5,063,670 acres)
Arcoona Plateau GAW04 1,089,865 hectares (2,693,120 acres)
Kingoonya GAW05 1,922,414 hectares (4,750,390 acres)
Torrens GAW06 1,439,093 hectares (3,556,080 acres)
Roxby GAW07 1,409,305 hectares (3,482,470 acres)
Commonwealth Hill GAW08 1,448,062 hectares (3,578,240 acres)
Geraldton Sandplains GES 3,142,149 hectares (7,764,420 acres) WA
Geraldton Hills GES01 1,969,997 hectares (4,867,970 acres)
Leseur Sandplain GES02 1,172,152 hectares (2,896,450 acres)
Gibson Desert GID 15,628,918 hectares (38,619,900 acres) WA
Lateritic Plain GID01 12,714,805 hectares (31,418,970 acres)
Dune Field GID02 2,914,114 hectares (7,200,930 acres)
Great Sandy Desert GSD 39,486,135 hectares (97,572,360 acres) NT / WA
McLarty GSD01 12,316,754 hectares (30,435,360 acres)
Mackay GSD02 25,698,395 hectares (63,502,120 acres)
Ehrenberg GSD03 375,668 hectares (928,300 acres)
Amedeus GSD04 722,845 hectares (1,786,190 acres)
Lake Bennett GSD05 289,541 hectares (715,470 acres)
Lake Lewis GSD06 82,932 hectares (204,930 acres)
Great Victoria Desert GVD 42,246,564 hectares (104,393,530 acres) SA / WA
Shield GVD01 4,741,854 hectares (11,717,380 acres)
Central GVD02 12,590,867 hectares (31,112,710 acres)
Maralinga GVD03 11,460,762 hectares (28,320,160 acres)
Kintore GVD04 4,961,542 hectares (12,260,240 acres)
Tallaringa GVD05 3,663,149 hectares (9,051,840 acres)
Yellabinna GVD06 4,828,389 hectares (11,931,210 acres)
Gulf Coastal GUC 2,711,718 hectares (6,700,800 acres) NT
Limmen GUC01 12,714,805 hectares (31,418,970 acres)
Pellews GUC02 2,914,114 hectares (7,200,930 acres)
Gulf Fall and Uplands GFU 11,847,909 hectares (29,276,820 acres) NT / Qld
McArthur GFU01 9,330,938 hectares (23,057,250 acres)
Nicholson GFU02 2,516,971 hectares (6,219,570 acres)
Gulf Plains GUP 22,041,825 hectares (54,466,540 acres) NT / Qld
Karumba Plains GUP01 1,057,366 hectares (2,612,810 acres)
Armraynald Plains GUP02 1,589,437 hectares (3,927,580 acres)
Woondoola Plains GUP03 2,375,110 hectares (5,869,000 acres)
Mitchell-Gilbert Fans GUP04 5,262,816 hectares (13,004,700 acres)
Claraville Plains GUP05 3,738,013 hectares (9,236,830 acres)
Holroyd Plain-Red Plateau GUP06 2,208,468 hectares (5,457,240 acres)
Doomadgee Plains GUP07 1,831,823 hectares (4,526,530 acres)
Donors Plateau GUP08 2,449,964 hectares (6,053,990 acres)
Gilberton Plateau GUP09 1,403,937 hectares (3,469,200 acres)
Wellesley Islands GUP10 124,893 hectares (308,620 acres)

H

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Hampton HAM 1,088,198 hectares (2,689,000 acres) SA, WA
Hampton HAM01

I

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Indian Tropical Islands ITI 27,329 hectares (67,530 acres)
Christmas Island ITI01 13,664 hectares (33,760 acres)
Cocos Islands ITI02 1,463 hectares (3,620 acres)
Timor Sea Coral Islands ITI03 12,203 hectares (30,150 acres)

J

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Jarrah Forest JAF 4,509,074 hectares (11,142,160 acres) WA
Northern Jarrah Forest JAF01 1,898,799 hectares (4,692,030 acres)
Southern Jarrah Forest JAF02 2,610,275 hectares (6,450,130 acres)

K

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Kanmantoo KAN 812,415 hectares (2,007,520 acres) SA
Kangaroo Island KAN01 441,685 hectares (1,091,430 acres)
Fleurieu KAN02 370,730 hectares (916,100 acres)
King KIN 425,567 hectares (1,051,600 acres) Tas
King KIN01

L

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IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Little Sandy Desert LSD 11,089,857 hectares (27,403,630 acres) WA
Rudall LSD01 991,277 hectares (2,449,500 acres)
Trainor LSD02 10,098,580 hectares (24,954,100 acres)

M

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
MacDonnell Ranges MAC 3,929,444 hectares (9,709,870 acres) NT
McDonnell MAC01 1,483,959 hectares (3,666,940 acres)
Watarrka MAC02 1,092,782 hectares (2,700,320 acres)
Hartz Range MAC03 1,352,702 hectares (3,342,600 acres)
Mallee MAL 7,397,559 hectares (18,279,770 acres) WA
Eastern Mallee MAL01 3,415,839 hectares (8,440,720 acres)
Western Mallee MAL02 3,981,720 hectares (9,839,000 acres)
Mitchell Grass Downs MGD 33,468,761 hectares (82,703,110 acres) NT / Qld
Sylvester MGD01 1,153,283 hectares (2,849,820 acres)
Barkly Tableland MGD02 9,479,612 hectares (23,424,630 acres)
Georgina Limestone MGD03 2,292,026 hectares (5,663,720 acres)
Southwestern Downs MGD04 3,715,454 hectares (9,181,090 acres)
Kynuna Plateau MGD05 2,293,311 hectares (5,666,890 acres)
Northern Downs MGD06 435,263 hectares (1,075,560 acres)
Central Downs MGD07 9,378,817 hectares (23,175,560 acres)
Southern Wooded Downs MGD08 4,720,995 hectares (11,665,830 acres)
Mount Isa Inlier MII 6,778,263 hectares (16,749,450 acres) Qld
Southwestern Plateaus and Floodouts MII01 1,333,519 hectares (3,295,200 acres)
Thorntonia MII02 802,892 hectares (1,983,990 acres)
Mount Isa MII03 4,641,851 hectares (11,470,260 acres)
Mulga Lands MUL 25,188,333 hectares (62,241,730 acres) NSW / Qld
West Balonne Plains MUL01 1,991,194 hectares (4,920,350 acres)
Eastern Mulga Plains MUL02 1,563,269 hectares (3,862,920 acres)
Nebine Plains, Block Range MUL03 1,898,731 hectares (4,691,870 acres)
North Eastern Plains MUL04 660,369 hectares (1,631,810 acres)
Warrego Plains MUL05 2,492,085 hectares (6,158,080 acres)
Langlo Plains MUL06 1,290,484 hectares (3,188,860 acres)
Cuttaburra-Paroo MUL07 1,703,985 hectares (4,210,640 acres)
West Warrego MUL08 4,790,087 hectares (11,836,560 acres)
Northern Uplands MUL09 1,147,549 hectares (2,835,660 acres)
West Bulloo MUL10 2,852,104 hectares (7,047,700 acres)
Urisino Sandplains MUL11 2,007,350 hectares (4,960,300 acres)
Warrego Sands MUL12 479,471 hectares (1,184,800 acres)
Kerribree Basin MUL13 399,576 hectares (987,370 acres)
White Cliffs Plateau MUL14 1,074,309 hectares (2,654,680 acres)
Paroo Overflow MUL15 301,217 hectares (744,320 acres)
Paroo-Darling Sands MUL16 536,556 hectares (1,325,860 acres)
Murchison MUR 28,120,554 hectares (69,487,400 acres) WA
Eastern Murchison MUR01 21,135,040 hectares (52,225,800 acres)
Western Murchison MUR02 6,985,514 hectares (17,261,580 acres)
Murray Darling Depression MDD 19,958,349 hectares (49,318,150 acres) NSW, SA, Vic
South Olary Plain MDD01 5,439,224 hectares (13,440,620 acres)
Murray Mallee MDD02 5,037,583 hectares (12,448,140 acres)
Murray Lakes and Coorong MDD03 249,191 hectares (615,760 acres)
Lowan Mallee MDD04 2,391,719 hectares (5,910,070 acres)
Wimmera MDD05 2,145,380 hectares (5,301,300 acres)
Darling Depression MDD06 3,662,438 hectares (9,050,080 acres)
Braemer MDD07 1,032,815 hectares (2,552,140 acres)

N

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Nandewar NAN 2,701,977 hectares (6,676,730 acres) NSW / Qld
Nandewar Northern Complex NAN01 962,254 hectares (2,377,780 acres)
Inverell Basalts NAN02 230,854 hectares (570,450 acres)
Kaputar NAN03 78,307 hectares (193,500 acres)
Peel NAN04 1,430,562 hectares (3,535,000 acres)
Naracoorte Coastal Plain NCP 2,458,215 hectares (6,074,380 acres) SA / Vic
Bridgewater NCP01 463,723 hectares (1,145,880 acres)
Glenelg Plain NCP02 554,775 hectares (1,370,880 acres)
Lucindale NCP03 731,656 hectares (1,807,960 acres)
Tintinara NCP04 708,061 hectares (1,749,660 acres)
New England Tablelands NET 3,002,213 hectares (7,418,630 acres) NSW
Bundarra Downs NET01 151,867 hectares (375,270 acres)
Beardy River Hills NET02 24,625 hectares (60,850 acres)
Walcha Plateau NET03 473,825 hectares (1,170,850 acres)
Armidale Plateau NET04 290,577 hectares (718,030 acres)
Wongwibinda Plateau NET05 106,929 hectares (264,230 acres)
Deepwater Downs NET06 97,773 hectares (241,600 acres)
Glenn Innes-Guyra Basalts NET07 277,299 hectares (685,220 acres)
Ebor Basalts NET08 35,709 hectares (88,240 acres)
Moredun Volcanics NET09 117,461 hectares (290,250 acres)
Severn River Volcanics NET10 150,795 hectares (372,620 acres)
Northeast Forest Lands NET11 206,492 hectares (510,250 acres)
Tenterfield Plateau NET12 139,242 hectares (344,070 acres)
Yarrowyck-Kentucky Downs NET13 65,135 hectares (160,950 acres)
Binghi Plateau NET14 64,555 hectares (159,520 acres)
Stanthorpe Plateau NET15 267,999 hectares (662,240 acres)
Eastern Nandewars NET16 319,096 hectares (788,500 acres)
Tingha Plateau NET17 78,461 hectares (193,880 acres)
Nightcap NET18 113,767 hectares (281,120 acres)
Round Mountain NET19 20,606 hectares (50,920 acres)
Northern Kimberley NOK 8,420,100 hectares (20,807,000 acres) WA
Mitchell NOK01 5,970,915 hectares (14,754,450 acres)
Berkeley NOK02 2,449,185 hectares (6,052,070 acres)
NSW North Coast NNC 3,996,591 hectares (9,875,790 acres) NSW
Washpool NNC01 59,377 hectares (146,720 acres)
Cataract NNC02 121,338 hectares (299,830 acres)
Dalmorton NNC03 316,458 hectares (781,980 acres)
Chaelundi NNC04 188,279 hectares (465,250 acres)
Yuraygir NNC05 45,815 hectares (113,210 acres)
Coffs Coast and Escarpment NNC06 308,115 hectares (761,370 acres)
Macleay Hastings NNC07 729,170 hectares (1,801,800 acres)
Carrai Plateau NNC08 20,100 hectares (50,000 acres)
Macleay Gorges NNC09 153,349 hectares (378,930 acres)
Upper Manning NNC10 83,181 hectares (205,540 acres)
Comboyne Plateau NNC11 123,315 hectares (304,720 acres)
Mummel Escarpment NNC12 400,916 hectares (990,690 acres)
Barrington NNC13 110,903 hectares (274,050 acres)
Tomalla NNC14 227,615 hectares (562,450 acres)
Ellerston NNC15 113,183 hectares (279,680 acres)
Upper Hunter NNC16 232,750 hectares (575,100 acres)
Karuah Manning NNC17 602,423 hectares (1,488,620 acres)
Rocky River Gorge NNC18 86,829 hectares (214,560 acres)
Guy Fawkes NNC19 73,477 hectares (181,570 acres)
NSW South Western Slopes NSS 8,681,126 hectares (21,451,530 acres) NSW / Vic
Inland Slopes NSS01 4,640,857 hectares (11,467,810 acres)
Lower Slopes NSS02 3,938,809 hectares (9,733,010 acres)
Capertee Valley NSS03 101,460 hectares (250,700 acres)
Nullarbor NUL 19,722,774 hectares (48,736,040 acres) SA / WA
Carlisle NUL01 5,788,547 hectares (14,303,810 acres)
Nullarbor Plain NUL02 12,785,260 hectares (31,593,100 acres)
Yalata NUL03 1,148,966 hectares (2,839,160 acres)

O

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Ord Victoria Plain OVP 12,540,703 hectares (30,988,750 acres) NT / WA
Purnululu OVP01 3,233,873 hectares (7,991,070 acres)
South Kimberley Interzone OVP02 7,728,296 hectares (19,097,040 acres)
Gregory OVP03 74,982 hectares (185,280 acres)
Camfield OVP04 828,712 hectares (2,047,790 acres)

P

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Pacific Subtropical Islands PSI 5,817 hectares (14,370 acres)
Lord Howe Island PSI01 1,909 hectares (4,720 acres)
Norfolk Island PSI02 3,908 hectares (9,660 acres)
Pine Creek PCK 2,851,777 hectares (7,046,890 acres) NT
Pine Creek PCK01
Pilbara PIL 17,823,126 hectares (44,041,900 acres) WA
Chichester PIL01 8,374,728 hectares (20,694,400 acres)
Fortescue PIL02 1,951,435 hectares (4,822,100 acres)
Hamersley PIL03 5,634,727 hectares (13,923,710 acres)
Roebourne PIL04 1,862,236 hectares (4,601,690 acres)

R

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Riverina RIV 9,704,469 hectares (23,980,270 acres) NSW, SA, Vic
Lachlan RIV01 2,377,523 hectares (5,874,990 acres)
Murrumbidgee RIV02 2,946,813 hectares (7,281,730 acres)
Murray Fans RIV03 1,952,238 hectares (4,824,090 acres)
Victorian Riverina RIV04 1,890,627 hectares (4,671,840 acres)
Robinvale Plains RIV05 162,003 hectares (400,320 acres)
Murray Scroll Belt RIV06 375,266 hectares (927,300 acres)

S

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Simpson Strzelecki Dunefields SSD 27,984,283 hectares (69,150,670 acres) NSW, NT, Qld, SA
Andado SSD01 1,355,195 hectares (3,348,760 acres)
Simpson Desert SSD02 12,962,073 hectares (32,029,980 acres)
Dieri SSD03 5,152,029 hectares (12,730,940 acres)
Warriner SSD04 1,032,165 hectares (2,550,540 acres)
Strzelecki Desert SSD05 7,482,821 hectares (18,490,450 acres)
South East Coastal Plain SCP 1,749,237 hectares (4,322,460 acres) Vic
Gippsland Plain SCP01 1,246,995 hectares (3,081,390 acres)
Otway Plain SCP02 237,799 hectares (587,610 acres)
Warrnambool Plain SCP03 264,443 hectares (653,450 acres)
South East Corner SEC 2,532,053 hectares (6,256,840 acres) NSW / Vic
East Gippsland Lowlands SEC01 623,515 hectares (1,540,740 acres)
South East Coastal Ranges SEC02 1,734,517 hectares (4,286,080 acres)
Bateman SEC03 174,020 hectares (430,000 acres)
South Eastern Highlands SEH 8,375,961 hectares (20,697,450 acres) ACT, NSW, Vic
Highlands-Southern Fall SEH01 1,196,334 hectares (2,956,210 acres)
Highlands-Northern Fall SEH02 1,415,806 hectares (3,498,530 acres)
Otway Ranges SEH03 149,857 hectares (370,300 acres)
Strzelecki Ranges SEH04 342,045 hectares (845,210 acres)
Murrumbateman SEH06 630,454 hectares (1,557,890 acres)
Bungonia SEH07 431,185 hectares (1,065,480 acres)
Kanangra SEH08 131,310 hectares (324,500 acres)
Crookwell SEH09 466,523 hectares (1,152,800 acres)
Oberon SEH10 293,164 hectares (724,420 acres)
Bathurst SEH11 161,486 hectares (399,040 acres)
Orange SEH12 284,172 hectares (702,200 acres)
Hill End SEH13 504,377 hectares (1,246,340 acres)
Bondo SEH14 541,990 hectares (1,339,300 acres)
Kybeyan-Gourock SEH15 479,221 hectares (1,184,180 acres)
Monaro SEH16 1,267,543 hectares (3,132,170 acres)
Capertee Uplands SEH17 80,494 hectares (198,910 acres)
South Eastern Queensland SEQ 7,804,921 hectares (19,286,380 acres) NSW / Qld
Burnett-Curtis Hills and Ranges SEQ01 962,583 hectares (2,378,590 acres)
Moreton Basin SEQ02 784,969 hectares (1,939,700 acres)
Burringbar-Conondale Ranges SEQ03 630,616 hectares (1,558,290 acres)
Sunshine Coast-Gold Coast Lowlands SEQ04 351,123 hectares (867,640 acres)
Brisbane-Barambah Volcanics SEQ05 806,778 hectares (1,993,590 acres)
South Burnett SEQ06 563,866 hectares (1,393,340 acres)
Gympie Block SEQ07 859,020 hectares (2,122,700 acres)
Burnett-Curtis Coastal Lowlands SEQ08 700,181 hectares (1,730,180 acres)
Great Sandy SEQ09 356,502 hectares (880,940 acres)
Scenic Rim SEQ10 614,729 hectares (1,519,030 acres)
Woodenbong SEQ11 325,603 hectares (804,580 acres)
Clarence Sandstones SEQ12 327,829 hectares (810,080 acres)
Clarence Lowlands SEQ13 520,901 hectares (1,287,170 acres)
Southern Volcanic Plain SVP 2,440,340 hectares (6,030,200 acres) SA / Vic
Victorian Volcanic Plain SVP01 2,356,147 hectares (5,822,170 acres)
Mount Gambier SVP02 84,194 hectares (208,050 acres)
Stony Plains STP 13,166,372 hectares (32,534,810 acres) SA
Breakaways STP01 2,444,385 hectares (6,040,210 acres)
Oodnadatta STP02 2,593,717 hectares (6,409,210 acres)
Murnpeowie STP03 2,910,385 hectares (7,191,720 acres)
Peake-Dennison Inlier STP04 158,623 hectares (391,970 acres)
Macumba STP05 693,282 hectares (1,713,140 acres)
Witjira STP06 1,677,111 hectares (4,144,230 acres)
Baltana STP07 2,688,870 hectares (6,644,300 acres)
Sturt Plateau STU 9,857,531 hectares (24,358,490 acres) NT
Renehan STU01 1,938,959 hectares (4,791,270 acres)
Newcastle STU02 4,333,836 hectares (10,709,140 acres)
Birdum STU03 3,584,736 hectares (8,858,080 acres)
Subantarctic Islands SAI 49,164 hectares (121,490 acres) NSW / Vic
Heard and McDonald Islands SAI01 36,764 hectares (90,850 acres)
Macquarie Island SAI02 12,400 hectares (31,000 acres)
Swan Coastal Plain SWA 1,525,798 hectares (3,770,330 acres) WA
Dandarragan Plateau SWA01 383,465 hectares (947,560 acres)
Perth SWA02 1,142,334 hectares (2,822,770 acres)
Sydney Basin SYB 3,629,597 hectares (8,968,930 acres) NSW
Kerrabee SYB01 437,384 hectares (1,080,800 acres)
Hunter SYB02 461,515 hectares (1,140,430 acres)
Wollemi SYB04 687,622 hectares (1,699,150 acres)
Yengo SYB05 461,327 hectares (1,139,960 acres)
Wyong SYB06 211,494 hectares (522,610 acres)
Pittwater SYB07 148,389 hectares (366,680 acres)
Cumberland SYB08 275,693 hectares (681,250 acres)
Burragorang SYB09 257,572 hectares (636,470 acres)
Sydney Cataract SYB10 153,839 hectares (380,140 acres)
Moss Vale SYB11 96,903 hectares (239,450 acres)
Illawarra SYB12 122,752 hectares (303,330 acres)
Ettrema SYB13 179,126 hectares (442,630 acres)
Jervis SYB14 135,981 hectares (336,020 acres)

T

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Tanami TAN 25,997,277 hectares (64,240,670 acres) NT / WA
Tanami Desert TAN01 20,769,151 hectares (51,321,690 acres)
Wycliffe TAN02 1,600,893 hectares (3,955,890 acres)
Sandover TAN03 3,627,233 hectares (8,963,090 acres)
Tasmanian Central Highlands TCH 767,849 hectares (1,897,400 acres) Tas
Central Highlands TCH01
Tasmanian Northern Midlands TNM 415,445 hectares (1,026,590 acres) Tas
Northern Midlands TNM01
Tasmanian Northern Slopes TNS 623,103 hectares (1,539,720 acres) Tas
Northern Slopes TNS01
Tasmanian South East TSE 1,131,822 hectares (2,796,790 acres) Tas
South East TSE01
Tasmanian Southern Ranges TSR 757,228 hectares (1,871,150 acres) Tas
Southern Ranges TSR01
Tasmanian West TWE 1,565,077 hectares (3,867,390 acres) Tas
West TWE01
Tiwi Cobourg TIW 1,010,580 hectares (2,497,200 acres) NT
Tiwi TIW01 748,927 hectares (1,850,640 acres)
Coburg TIW02 261,652 hectares (646,560 acres)

V

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Victoria Bonaparte VIB 7,301,242 hectares (18,041,760 acres) NT / WA
Keep VIB01 6,441,592 hectares (15,917,520 acres)
Hermit Creek VIB02 170,646 hectares (421,680 acres)
Angalarri VIB03 689,004 hectares (1,702,570 acres)
Victorian Midlands VIM 3,469,789 hectares (8,574,040 acres) Vic
Goldfields VIM01 1,326,133 hectares (3,276,950 acres)
Central Victorian Uplands VIM02 1,217,922 hectares (3,009,550 acres)
Greater Grampians VIM03 237,416 hectares (586,670 acres)
Dundas Tablelands VIM04 688,318 hectares (1,700,870 acres)

W

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Warren WAR 844,771 hectares (2,087,470 acres) WA
Warren WAR01
Wet Tropics WET 1,989,107 hectares (4,915,190 acres) Qld
Herbert WET01 220,920 hectares (545,900 acres)
Tully WET02 162,958 hectares (402,680 acres)
Innisfail WET03 195,200 hectares (482,000 acres)
Atherton WET04 177,037 hectares (437,470 acres)
Paluma-Seaview WET05 233,751 hectares (577,610 acres)
Kirrama-Hinchinbrook WET06 257,594 hectares (636,530 acres)
Bellenden Ker-Lamb WET07 271,062 hectares (669,810 acres)
Macalister WET08 112,652 hectares (278,370 acres)
Daintree-Bloomfield WET09 357,932 hectares (884,470 acres)

Y

[edit]
IBRA regions and subregions: IBRA7
IBRA region / subregion IBRA code Area States Location in Australia
Yalgoo YAL 5,087,577 hectares (12,571,680 acres) WA
Edel YAL01 1,588,634 hectares (3,925,600 acres)
Tallering YAL02 3,498,943 hectares (8,646,080 acres)

See also

[edit]

Further reading

[edit]
  • Haque, Md. Mohasinul; Nipperess, David A.; Gallagher, Rachael V.; Beaumont, Linda J. (2017). "How well documented is Australia's flora? Understanding spatial bias in vouchered plant specimens". Austral Ecology. 42 (6): 690–699. doi:10.1111/aec.12487. ISSN 1442-9985. (Discusses IBRA regions most likely to benefit from targeted floral sampling)

References

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Additional references

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