Impact of Phytophthora cinnamomi on Plant Communities

Mount Leseur National Park north of Perth, Western Australia. Note ‘autumn' colours associated
with Phytophthora cinnamomi. Grasstrees (blue arrow), banksias (yellow arrow) and epacrids
(black arrow) being killed.
Phytophthora cinnamomi impacted banksia heathland in the Fitzgerald National Park in the
South - West of Western Australia. Note ‘dieback' front (arrow), plant community in foreground
changing from Proteaceae to rushes and sedges.
Banksia woodland being killed by Phytophthora cinnamomi.
Banksia Heathland in Kwongan near Eneabba
Healthy Heathland in Stirling Ranges National Park
Picture Sarah Barrett
Dead and dying montane vegetation from Phytophthora cinnamomi. The pathogen would have been
introduced on the boots of bush walkers. Note the ‘grey' areas (blue arrows) showing change in
vegetation type along streamzones due to P. cinnamomi.
Picture Sarah Barrett
Banksia woodland with dying trees caused by Phytophthora cinnamomi. Note the
dieback front (blue arrow) and the huge loss of woody plants in the foreground.
Impact of Phytophthora cinnamomi in the jarrah forest.

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