Appendix 2 - Vegetation Communities and Regional Ecosystems

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Island/Island Group Cooktown-Crab Island (Prince of Wales, Thursday Group) Torres Strait Island – Coconut Island Boigu Island 74 Project Aerial Photography Saibai Island Photography 1 Year Scale Negative Quality 1992 1:50 000 Colour 3d Environmental – Torres Strait Regional Ecosystem Mapping Project – August 2008 Excellent 1975 1:37 800 B&W Excellent 1974 1:10 000 B&W Excellent 1974 1:10 000 B&W Excellent Two sources of satellite imagery were provided to the project by TSRA. Of these, satellite imagery sourced from Ikononos was by far the most usable, supplied in a single false colour image for a number of the individual islands including Saibai and Boigu. Quickbird imagery for the majority of the larger continental islands, including the Inner and Near Western Island Groups, was provided in a number of separate tiles. The full satellite image coverage of Muralug for example consisted of 40 individual unreferenced tiles of different sizes and shapes. The spectral signatures of these tiles lacked consistency, requiring a high degree of image manipulation to ensure spectral signatures could be matched between tiles, and matching could not always be achieved. Due to the enormous processing power required, it was not possible to load more than a limited number of tiles at any time, and this did not allow for an overview of the broader landscape as is required in a regional mapping exercise. For this reason Quickbird imagery proved unsuitable for the supplied purpose other than to provide a basis for aerial photograph rectification. The data format provided for the Quickbird imagery resulted in considerable time being used to reference tiles, and added greatly to the time taken for the digital processing (8-10 days). The usefulness of both Ikononos and Quickbird imagery was hindered by considerable cloud cover and resulting shadow in some areas, particularly on Muralug, Dauan, Mabuiag and Saibai Islands. 3.3 Site Locations Aerial photography was analysed stereoscopically in an initial phase of pre-survey interpretation designed specifically to: a) target a representative range of habitats within the study area; b) sample those communities that are useful for provision of reference condition, or ‘best type examples’ of specific vegetation types, and; c) direct detailed sampling towards those communities that could not be adequately categorised through API, or were considered critical to a range of significant flora species. Further sites were added opportunistically during the field survey to provide a more complete data coverage and allow a verification of the mapping units to standard herbarium procedure. The locations of field survey sites is spatially illustrated in Figure 2a to 2e. A summary of islands and sites provided in Table 5 indicates 1 372 sites completed during the field survey. This comprised 74 secondary level sites, 2 tertiary level sites and 1 296 quaternary level sites. 1 Aerial photography for the southern portion of Saibai Island only. 10
Table 5. Site survey effort in Stage 1 and broader study areas Island Quaternary Sites Secondary Sites Tertiary Sites Total Sites per Island Aureed* 3 - - 3 Badu 2 43 4 - 47 Boigu** 96 2 - 98 Buru* 1 - - 1 Dauan 50 6 - 56 Erub (Darnley) 51 11 - 62 Gaboy* 1 - - 1 Giralug (Friday) 26 - - 26 Gebar** 34 - - 34 Iama (Yam) 30 4 - 34 Keriri (Hammond)** 40 - - 40 Layoak* 2 - - 2 Masig (Yorke) 5 11 - 16 Mabuiag 51 7 - 58 Mawai (Wednesday) 21 - - 21 Mer (Murray) 32 4 - 36 Mer/Duaur* 10 - - 10 Moa** 178 9 2 189 Muralug (PoW)** 222 3 - 225 Morilug (Little Adolphus)* 8 - - 8 Morilug (Mt Adolphus)* 27 - - 27 Naghir** 11 - - 11 Ngurupai (Horn)** 65 - - 65 Palilug (Goode) 9 - - 9 Possession* 4 - - 4 Saibai** 185 12 - 197 Sassie** 9 1 - 10 Tudu** 8 - - 8 Waibene (Thursday) 13 - - 13 Warraber (Sue)* 6 - - 6 Warral (Hawkesbury)** 25 - - 25 Zagai* 10 - - 10 Zuna (Entrance) 20 - - 20 Total Sites * indicates helicopter survey only 1296 74 2 1372 ** indicates on ground sites supplemented by helicopter sites 2 Badu Is. sites limited to Council managed lands in close vicinity to community. 3d Environmental – Torres Strait Regional Ecosystem Mapping Project – August 2008 11
Page 1 and 2: Vegetation Communities and Regional
Page 3 and 4: Acknowledgments This project was fu
Page 5 and 6: 5.2.6 Regional Ecosystem 3.1.7 (New
Page 7 and 8: 1. Introduction Three (3)d Environm
Page 9 and 10: Waral Kawa (Deliverance) Is. ARAFUR
Page 11 and 12: Photograph 1. A deflation scar in t
Page 13 and 14: 3. Methods 3.1 Desktop Literature R
Page 15: Plant taxonomy and distributional d
Page 19 and 20: Legend Quaternary Ugar (Stephens) I
Page 21 and 22: TORRES 0 5 10 15 20 N O T E : S Kil
Page 23 and 24: 3.4 Field Survey Procedure The exec
Page 25 and 26: Queensland’s Vegetation Managemen
Page 27 and 28: 3.6 Scale of Survey In vegetation s
Page 29 and 30: cover on both satellite formats cre
Page 31 and 32: structural variations have been dif
Page 33 and 34: Vegetation Community Description se
Page 35 and 36: Vegetation Community Description Ge
Page 41 and 42: Regional Ecosystem Component Vegeta
Page 43 and 44: Regional Ecosystem 3.3.14b 7fs 3.3.
Page 45 and 46: Regional Ecosystem 3.12.20 3.12.21a
Page 47 and 48: 5.1.3 Land Zone 3 Difficulties with
Page 49 and 50: corestones above the surface of wha
Page 51 and 52: Zone classification more robust. Th
Page 53 and 54: The mapping of VC24a as a complex r
Page 55 and 56: Photograph 11. Mangrove woodland do
Page 57 and 58: also forms a component of VC26b, ma
Page 59 and 60: Eleocharis dulcis often with an eva
Page 61 and 62: Photograph 20. The broken canopy ty
Page 63 and 64: of Heritiera littoralis, Xylocarpus
Page 65 and 66: Acacia crassicarpa woodland (RE3.2.
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Photograph 29. Open forest with dom
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5.2.11 Regional Ecosystem 3.2.5 Des
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Vegetation Community 14t/16c: This
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Photograph 39. Maximum development
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5.2.14 Regional Ecosystem 3.2.8 Pho
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5.2.15 Regional Ecosystem 3.2.10c D
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are similarly sparse, dominated by
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are also mapped on Badu Island wher
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community where it is mapped as com
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5.2.23 Regional Ecosystem 3.2.27 De
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5.2.26 Regional Ecosystem 3.3.5c De
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Photograph 61. Tall notophyll fores
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5.2.29 Regional Ecosystem 3.3.9 Des
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glauca, Rhodamnia macrocarpa, Sterc
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occurs on drainage swamps, it has b
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5.2.35 Regional Ecosystem 3.3.20c P
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5.2.37 Regional Ecosystem 3.3.27 Ph
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Photograph 85. Shrubland dominated
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Photograph 88. Low woodland/shrubla
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RE is supported, which provides som
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Photograph 99. Maximum development
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5.2.47 Regional Ecosystem 3.3.70 (N
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not differentiated from the broader
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Photograph 106. Vegetation Communit
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5.2.52 Regional Ecosystem 3.5.19a D
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That this community is marginal to
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Photograph 117. Grassland community
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Vegetation Community 2j: Vegetation
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Pandanus sp, contribute roughly equ
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distinctive structural components.
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canopy species in most locations, a
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Photograph 131. Lighter coloured cr
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5.2.63 Regional Ecosystem 3.12.13 P
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Photograph 137. Low rise in acid vo
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exposed to prevailing trade winds a
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Photograph 142. Vine Thicket Commun
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Vegetation Community 2x: A represen
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5.2.69 Regional Ecosystem 3.12.29 P
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The extensive mosaic of grassland a
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Photograph 155. Shrubland community
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extent of this community greatly re
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Photograph 161. Bare pavements with
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Vegetation Community 2h: This commu
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idgelines, Acacia polystachya may f
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It is envisaged, as is the general
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Photograph 170. Evergreen notophyll
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This habitat is unique in the natio
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canopy forms a poorly defined strat
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Vegetation Community 5u: Similar to
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5.3 Retrospective Classifications L
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RE: Native Regrowth Communities: Na
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5.5 Other Classifications Areas Rep
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Regional Ecosystem Pre-clearing Are
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clarksoniana, Eucalyptus brassiana
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This includes 196 (15%) naturalised
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Species Island Ipomoea hederifolia
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Table 16. Summary of survey records
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Species Known Distribution Survey R
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Photograph 187. Regrowth mangrove s
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Saibai Island grasslands and other
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10. Bibliography Abrahams, H., Mulv
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Galloway, R. W. and E. Löffler (19
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University, Darwin, Australia. 13-1
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Client Scale Legend Evergreen vine
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Melaleuca dominant open forests Cli
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Legend Successional vine forest com
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Legend - Land Zones of the Torres S
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Family_Name Botanical_Name BRI C’
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Appendix 2 - Vegetation Communities and Regional Ecosystems

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