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Local Biodiversity Strategy: - Shire of Kalamunda

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In recognition <strong>of</strong> the ecological function <strong>of</strong> waterways, a target for waterways has<br />

been drafted. This target is detailed in Box 8.<br />

Box 8: Preferred Target for Rivers, creeklines and other channel waterways<br />

Retain and protect riparian vegetation and upland vegetation in moderate or<br />

better condition associated with rivers, creeklines, other channel waterways<br />

and floodplain areas. Retain sufficient buffer distance to maintain the<br />

ecological function <strong>of</strong> the watercourse. Where practicable, enhance natural<br />

areas containing waterways to maintain and improve biodiversity values.<br />

8.3 Maintaining Ecological Processes<br />

8.3.1 Ecological Linkages<br />

Ecological linkages are non-contiguous, natural areas that connect larger natural<br />

areas by forming stepping stones that allow the movement, over time, <strong>of</strong> organisms<br />

between larger areas. Habitat fragmentation is a key threatening process leading to<br />

the loss <strong>of</strong> biodiversity (refer to Section 4.4). Survival <strong>of</strong> species within natural<br />

areas will depend on well planned and managed ecological linkages.<br />

Regional ecological linkages link protected Regionally Significant Natural Areas<br />

(RSNAs) by retaining the best condition LNAs available between them that can act as<br />

stepping stones for flora and fauna. This increases the long-term viability <strong>of</strong> the<br />

RSNAs as well as the LNAs in the link. To be effective the linkages should incorporate<br />

the major variation in plant communities and fauna habitat typical <strong>of</strong> the region so<br />

that the widest range <strong>of</strong> flora and fauna possible can use the links.<br />

Regional ecological linkages have been identified by PBP with input from DEC and<br />

DPI. It is proposed that the Regional Ecological Linkages identified by PBP are<br />

accepted for inclusion into the <strong>Local</strong> <strong>Biodiversity</strong> <strong>Strategy</strong>. On-ground assessment<br />

will however be required prior to making planning decisions enforcing the proposed<br />

linkage target.<br />

<strong>Local</strong> ecological linkages are an important part <strong>of</strong> improving the viability <strong>of</strong> natural<br />

areas that may be too small or in too poor shape or condition to be viable on their<br />

own if isolated. The <strong>Shire</strong> <strong>of</strong> <strong>Kalamunda</strong> identified a number <strong>of</strong> local ecological<br />

linkages as part <strong>of</strong> the development <strong>of</strong> the Wildlife Corridors <strong>Strategy</strong> 1998.<br />

<strong>Local</strong> ecological linkages should aim to link protected <strong>Local</strong>ly Significant Natural<br />

Areas (LSNAs) to other LSNAs, protected regionally significant natural areas and<br />

Regional Ecological Linkages. The linkages recognised in the Wildlife Corridors<br />

<strong>Strategy</strong> should be assessed to ensure that these linkages meet current criteria for<br />

local ecological linkages. Regional ecological linkages and wildlife corridors are<br />

detailed in Figure 5.<br />

<strong>Local</strong> <strong>Biodiversity</strong> <strong>Strategy</strong> Page 45

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