Eyre Yorke Block

Description 

The Eyre Yorke Block bioregion extends throughout the Eyre and Yorke Peninsulas in the mid-southern part of South Australia. This bioregion is made up of hilly plains, rocky outcrops and sands. There are also scattered salt lakes which sometimes dry out completely.The Eyre Yorke Block bioregion extends throughout the Eyre and Yorke Peninsulas in the mid-southern part of South Australia. This bioregion is made up of hilly plains, rocky outcrops and sands. There are also scattered salt lakes which sometimes dry out completely.

Details

Area 
6,120,409 ha
Climate 
Climate varies from north to south. The northern section of the bioregion has a semi-arid and arid climate with hot dry summers and cool mild winters. Rainfall in the north is unreliable and erratic. The southern part of the bioregion has a Mediterranean climate with warm to hot summers and cool moist winters. Rainfall in the bioregion is winter dominant with mean annual totals between 250 to 650 mm. Rainfall is more reliable in the south and higher areas of the Mt Lofty Ranges can receive over 1000 mm per year. Native grassland occurs predominantly in areas receiving less than 600 mm per year.
Grassland communities 
Isolated occurences of Iron-grass Natural Temperate Grasslands of South Australia