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Appendix 2 - Vegetation Communities and Regional Ecosystems

Appendix 2 - Vegetation Communities and Regional Ecosystems

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occurs on drainage swamps, it has been classified as RE3.3.14 (VC7b), which is discussed in the<br />

following section.<br />

5.2.33 <strong>Regional</strong> Ecosystem 3.3.14<br />

Photograph 74. Livistona muelleri<br />

forming a prominent sub-canopy<br />

layer to Melaleuca saligna open<br />

forest (VC7bs). Horn Isl<strong>and</strong> Site<br />

HI5.<br />

Description: Melaleuca saligna ± M. viridiflora, Lophostemon suaveolens woodl<strong>and</strong> on<br />

drainage swamps.<br />

Status: Not of Concern<br />

<strong>Vegetation</strong> <strong>Communities</strong>: 7b, 7e, 13g, 7fs<br />

Reference Sites: 9 Quaternary<br />

<strong>Regional</strong> Ecosystem 3.3.14 represents Melaleuca saligna dominant open forests occurring in<br />

drainage swamps. There is some degree of overlap with RE3.3.13 which occupies outwash plains<br />

adjacent to salt flats, most prominently on Horn Isl<strong>and</strong>.<br />

<strong>Vegetation</strong> Community 7b: Although occurring on the same L<strong>and</strong> Zone, RE3.3.14 has been<br />

classified where VC7b occurs in drainage depressions <strong>and</strong> represents a much more extensive<br />

expression of Melaleuca saligna dominant open forest, occurring on the majority of isl<strong>and</strong>s in the<br />

Inner Isl<strong>and</strong> Group, as well as Mabuiag <strong>and</strong> Moa Isl<strong>and</strong>. Whilst Melaleuca saligna is the<br />

dominant canopy species, it mixes with Melaleuca leucadendra, Livistona muelleri <strong>and</strong> Alstonia<br />

spectabilis on Friday Isl<strong>and</strong>. The sub-canopy is generally sparse, although Livistona muelleri <strong>and</strong><br />

P<strong>and</strong>anus sp. are generally prominent.<br />

<strong>Vegetation</strong> Community 13g & 7e: The RE classification also includes VC13g <strong>and</strong> VC7e,<br />

occurring on Zuna <strong>and</strong> Moa Isl<strong>and</strong>s respectively. <strong>Vegetation</strong> Community 13g represents a low<br />

closed shrubl<strong>and</strong> of Melaleuca saligna which forms a narrow (although mappable) fringe to an<br />

Eleocharis dominated swampl<strong>and</strong> community on Zuna Isl<strong>and</strong>. <strong>Vegetation</strong> Community 7e<br />

represents an open forest community with a canopy composed of Melaleuca dealbata, Melaleuca<br />

saligna <strong>and</strong> Livistona muelleri. The community, which occupies a broad drainage depression on<br />

the south coast of Moa Isl<strong>and</strong>, was identified during helicopter survey <strong>and</strong> was not subject to<br />

detailed on-ground investigation.<br />

<strong>Vegetation</strong> Community 7fs: Minor areas of Melaleuca leucadendra dominant swamp forest<br />

was observed during helicopter traverse fringing saline flats on Badu Isl<strong>and</strong>. This community,<br />

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

91

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