Appendix 2 - Vegetation Communities and Regional Ecosystems
Appendix 2 - Vegetation Communities and Regional Ecosystems
Appendix 2 - Vegetation Communities and Regional Ecosystems
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<strong>Regional</strong><br />
Ecosystem<br />
Pre-clearing Area<br />
(ha)<br />
Area (2007 Coverage-ha) % Remaining<br />
3.7.1x1b 19.19 0.77 0.4<br />
L<strong>and</strong> Zone 8 - Basalt escarpments <strong>and</strong> terraces/Volcanic cones formed on ash <strong>and</strong> scoria<br />
3.8.4 530.45 519.3 97.9<br />
3.8.5 484.00 284.67 58.8<br />
L<strong>and</strong> Zone 12 – Acid volcanic <strong>and</strong> plutonic rocks including hornfelsed granite parent rocks<br />
3.12.4 6049.01 5896.87 97.5<br />
3.12.8 1664.26 1628.43 97.8<br />
3.12.9 785.84 779.46 99.2<br />
3.12.11 7998.49 7798.93 97.5<br />
3.12.13 360.49 240.37 66.7<br />
3.12.16 1795.76 1786.14 99.46<br />
3.12.18 96.83 96.83 100.0<br />
3.12.20 5660.53 5660.53 100.0<br />
3.12.21a 365.18 328.58 89.9<br />
3.12.23 2252.69 2252.69 100.0<br />
3.12.29 927.73 909.03 97.9<br />
3.12.30 489.68 488.15 99.7<br />
13.12.31x1a 1408.50 1408.39 100.0<br />
3.12.33 29.36 29.36 100.0<br />
3.12.34 1833.99 1833.99 100.0<br />
3.12.35 1156.18 1092.06 94.45<br />
3.12.36 494.78 491.68 99.9<br />
3.12.37 503.42 474.70 94.3<br />
3.12.38 1661.64 1661.5 100.0<br />
Total 84613.2 83684.85 98.9<br />
7.0 Significant <strong>Vegetation</strong> <strong>and</strong> Flora<br />
7.1 Summary of Significant <strong>Vegetation</strong><br />
The following section identifies vegetation types which have a restricted occurrence in the study<br />
area, recognising a number of vegetation communities potentially unique to the Torres Strait<br />
Isl<strong>and</strong>s. <strong>Vegetation</strong> which provides habitat to significant flora species including EVR’s, disjunct<br />
populations <strong>and</strong> species at the limits of geographical range are also recognized.<br />
1. <strong>Regional</strong> Ecosystem 3.1.1 (Closed forest of Rhizophora stylosa ± Bruguiera gymnorhiza)<br />
is described as a highly complex <strong>and</strong> variable RE occupying intertidal areas, generally on<br />
the seaward fringe of mangroves where tidal exchange is greatest. This RE includes<br />
small areas of Nypa forest on North-West Creek (Muralug) mapped as VC12a. The<br />
occurrence of Nypa forest on Muralag represents an extension of geographical range of<br />
the species north from the Jardine River mouth, being the only known occurrence<br />
between Cape York <strong>and</strong> PNG.<br />
2. <strong>Regional</strong> Ecosystem 3.1.7 is a previously unrecognised unit describing Schoenoplectus<br />
spp. sedgel<strong>and</strong>s in brackish estuarine environments. This ecosystem unit incorporates<br />
low open sedgel<strong>and</strong> (VC 27a) <strong>and</strong> tall sedgel<strong>and</strong>/estuarine wetl<strong>and</strong> mosaics (VC 27b), the<br />
latter forming where freshwater drainage mixes with estuarine waters, generally on the<br />
3d Environmental – Torres Strait <strong>Regional</strong> Ecosystem Mapping Project – August 2008<br />
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