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The Australian Koala Foundation (AKF) has released the results of research which has established a list of key tree species crucial to the survival of Australia's diminishing Koala population.
Primary Species for Adelaide Hills Council area:
Scientific Name and/or subspecies - Common Name - Preferred soil type and location
E. camaldulensis ssp. camaldulensis River Red Gum
Grows on riverbanks, creeks and the edges of lakes in well-drained or seasonally waterlogged deep clays to sandy clay loams, is suitable for recharge sites, salt, drought and frost tolerant, annual rainfall 325-750 mm.
E. leucoxylon ssp. leucoxylon Yellow gum, Blue-gum, White ironbark
Suitable for a variety of soils, but prefers well-drained heavy soils with a high clay content, drought and frost tolerant, annual rainfall 400-800 mm.
E. leucoxylon ssp. pruinosa Inland blue gum
Prefers heavy clay soils in drier coastal areas with winter waterlogging, tolerant of saltladen coastal winds, annual rainfall 400-800 mm.
E. microcarpa Grey box, Narrow-leaved box, Inland box
On gentle slopes and plains prefers brown loams or heavier alluvial soils, but shallower soils in hill country. Tolerates poor drainage, moderately alkaline soils, frost and drought tolerant, annual rainfall 500-800 mm.
E. viminalis ssp. cygnetensis Rough-barked manna gum
Prefers sandy soils especially along creeks, tolerates salt-laden coastal winds, moderately frost-tolerant, annual rainfall 650-1000 mm.
E. viminalis ssp. viminalis Manna gum
Prefers lower slopes adjacent to major streamlines, well-drained moist alluvial or sandy loam soils with clay subsoils, tolerates heavy frosts, slightly salt-tolerant, annual rainfall 500-1700 mm.
Note: Species shown in bold are Primary Koala Food Trees
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