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Appendix 2 - Vegetation Communities and Regional Ecosystems

Appendix 2 - Vegetation Communities and Regional Ecosystems

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<strong>Vegetation</strong> Community 5n: This community is restricted to alluvial terraces on North-West<br />

Creek where it forms an extensive flood plain type. Eucalyptus platyphylla dominates the canopy<br />

attaining maximum heights of 27m, with sub-dominant species including Eucalyptus tetrodonta,<br />

Corymbia nesophila <strong>and</strong> Erythrophleum chlorostachys. Sub-canopy is generally sparse, although<br />

Erythrophleum chlorostachys is prominent in association with Eucalyptus spp. <strong>and</strong> Corymbia<br />

spp. typical of the canopy. Ground cover is dominated by Heteropogon contortus, Imperata<br />

cylindrica <strong>and</strong> Themeda tri<strong>and</strong>ra. The community is represented in Photograph 84.<br />

5.2.39 <strong>Regional</strong> Ecosystem 3.3.42<br />

Description: Melaleuca viridiflora low woodl<strong>and</strong> in drainage areas.<br />

Status: Not of Concern<br />

<strong>Vegetation</strong> <strong>Communities</strong>: 13a, 13b, 13c, 14b, 14m, 14r, 11b<br />

Reference Sites: 23 Quaternary<br />

Photograph 84. <strong>Vegetation</strong><br />

community 5n on an alluvial terrace<br />

of North-West Creek. The<br />

community, sampled in this location<br />

is located at PW061.<br />

<strong>Vegetation</strong> communities falling under the classification of RE3.3.42 form one of the most<br />

extensive <strong>and</strong> variable vegetation groups in the Torres Strait Isl<strong>and</strong>s. Melaleuca viridiflora forms<br />

the pivotal species in a group whose distribution <strong>and</strong> ecology is largely controlled by soil<br />

drainage <strong>and</strong> to a lesser extent, soil fertility.<br />

<strong>Vegetation</strong> Community 13a: <strong>Vegetation</strong> Community 13a represents the most abundant of the<br />

variations, common on the Inner Isl<strong>and</strong> <strong>and</strong> Near Western Isl<strong>and</strong> groups, with a floristic<br />

composition <strong>and</strong> structural form that is largely consistent with the type description of RE sub-unit<br />

3.3.42a. Melaleuca viridiflora dominantes the shrub layer with heights between 4m to 10m.<br />

P<strong>and</strong>anus sp. is a common sub-dominant species <strong>and</strong> a range of myrtaceous species may be<br />

associated, although at no stage are these associated species dominant. The community also<br />

includes scattered shrubl<strong>and</strong>s of Melaleuca acacioides on Moa Isl<strong>and</strong> which mix on the margins<br />

of salt flats <strong>and</strong> mangrove wetl<strong>and</strong>s. It occupies areas of limited surface drainage, generally on<br />

silty outwash plains with infertile clay loam soils.<br />

3d Environmental – Torres Strait <strong>Regional</strong> Ecosystem Mapping Project – August 2008<br />

98

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