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Appendix A - Flora and Fauna Survey - Grange Resources

Appendix A - Flora and Fauna Survey - Grange Resources

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along the alignment are currently grazed <strong>and</strong> as such disturbed, these coastal granites are also<br />

continuous along the coastal area <strong>and</strong> the section disturbed by the alignment is not considered to be a<br />

unique habitat type. Generally, the habitats disturbed by the alignment are well represented within the<br />

local area.<br />

Given the existing environment <strong>and</strong> limited extent of further disturbance, further SRE assessments are<br />

not considered necessary.<br />

4.5 Dieback<br />

The Study Area is considered to be in an area susceptible to the pathogen, Phytophthora cinnamomi,<br />

commonly known as Dieback. Dieback is found throughout the southern extent of Western Australia in<br />

areas with susceptible plant species that receive rainfall in excess of 400 mm/year (Dieback Working<br />

Group, 2005).<br />

Dieback infestations spread through bushl<strong>and</strong> either naturally, through soil water movement, or artificially<br />

through vector movement of soil on vehicles, during fencing or firebreak track maintenance <strong>and</strong><br />

occasionally via foot traffic.<br />

22

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