Warren bioregion
| Warren bioregion Jarrah-Karri forest and shrublands | |
|---|---|
Karri forest near Pemberton, Western Australia | |
The IBRA regions, with Warren in red | |
| Ecology | |
| Realm | Australasian |
| Biome | Mediterranean forests, woodlands, and scrub |
| Borders | Karri Forest (Southwest Australia woodlands) |
| Geography | |
| Area | 8,273 km2 (3,194 sq mi) |
| Country | Australia |
| State | Western Australia |
| Coordinates | 34°36′S 116°06′E / 34.6°S 116.1°E |
| Conservation | |
| Conservation status | Critical/endangered |
| Protected | 3,871 km² (47%) |
Warren, also known as Karri Forest Region and the Jarrah-Karri forest and shrublands ecoregion, is a biogeographic region in southern Western Australia. Located in the southwest corner of Western Australia between Cape Naturaliste and Albany, it is bordered to the north and east by the Jarrah Forest region. Its defining characteristic is an extensive tall forest of Eucalyptus diversicolor (karri). This occurs on dissected, hilly ground, with a moderately wet climate. Karri is a valuable timber and much of the karri forest has been logged over, but less than a third has been cleared for agriculture. Recognised as a region under the Interim Biogeographic Regionalisation for Australia (IBRA), and as a terrestrial ecoregion by the World Wide Fund for Nature, it was first defined by Ludwig Diels in 1906.