Byron Flora and Fauna Study 1999 - Byron Shire Council

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BYRON FLORA AND FAUNA STUDY, 1999 Forest Red Gum was located at Marshalls Ridges on metasediments (Site P3). The upper stratum was dominated by Forest Red Gum with Grey Ironbark Eucalyptus siderophloia, Brush Box and Small-fruited Grey Gum also present. The midstratum comprised Forest Red Gum, Grey Ironbark and Brush Ironbark Wattle. The ground stratum included Kangaroo Grass, Windmill Grass Chloris sp., a kidney weed Dichondra repens, Mistweed and Crofton Weed. Grey Ironbark-Pink Bloodwood (gIB) (Sites PS17, PS25) The small areas of Grey Ironbark-Pink Bloodwood mapped during the survey are probably a conservative estimate of the actual extent of this association in Byron Shire. Most of the area mapped was on metasediments with a small area recorded on sediments. A site was located in Grey Ironbark forest on metasediments at Old Bangalow Rd (PS17). Brush Box was also present in the upper stratum. The midstratum comprised Brush Box and Forest Oak. Umbrella Cheese Tree and Sessile Burrawang were present in the lower stratum and the ground stratum was dominated by Harsh Ground Fern and a grass tree Xanthorrhoea macronema. Grey Ironbark was also recorded with Pink Bloodwood on metasediments at Cape Byron (PS25). Brush Box, Pink Bloodwood and Broad-leaved Lilly Pilly dominated the midstratum. Tuckeroo, Sweet Pittosporum and Umbrella Tree dominated the lower stratum and the ground stratum included Spiny-headed Mat-rush, Cabbage Palm and Lantana. Mixed eucalypt spp. (mE1) (Site P5) Mixed eucalypt forest included various combinations of the following species as co-dominants – Forest Red Gum, White Mahogany, Tallowwood, Pink Bloodwood, Grey Ironbark, Red Mahogany, Small-fruited Grey Gum and Blackbutt. Most of the area mapped was on sediments with smaller areas mapped on metasediments, basalt, alluvium and aeolian influenced soils. Site P5 was located at Yelgun on metasediments. White Mahogany, Blackbutt, Red Mahogany, Pink Bloodwood and Tallowwood were present in the upper stratum. The midstratum was dominated by Turpentine with Pink Bloodwood and Paperbark present but not common. Sweet Pittosporum dominated the lower stratum and the ground stratum included Many-flowered Mat-rush, an unidentified grass tree Xanthorrhoea sp. and Blue Flax Lily. Pink Bloodwood (pBW) (Sites H7, PS27, P12, H19, H20, P13) The area mapped is unlikely to reflect the true extent of this association in Byron Shire. A small area of Pink Bloodwood was mapped on sediments. Small areas on rhyolite and on metasediments were recorded but were too small (less than 1ha) to be identified during mapping. Pink Bloodwood commonly occurs as a subdominant canopy species in most other eucalyptus associations in Byron Shire. At Old Bangalow Rd on sediments Pink Bloodwood dominated the upper stratum with Brush Box, Flooded Gum, Tallowwood and Forest Oak also present (Site PS27). The midstratum was dominated by Pink-tipped Bottlebrush, Brown Kurrajong and Camphor Laurel. Rainforest species in the lower stratum included Rose Myrtle, Steelwood Sarcopteryx stipata and Guioa. The ground stratum was dominated by Gristle Fern. Pink Bloodwood was recorded on the summit of the western spur of Mt Chincogan on rhyolitic soils (Site H7). Pink Bloodwood dominated the upper stratum with Forest Red Gum and Brush Box sub-dominant. A grass-tree Xanthorrhoea malacophylla, Broad-leaved Palm Lily Cordyline petiolaris and Tree Bitter Pea were present in the midstratum. The ground stratum was dominated by the introduced Molasses Grass Melinis minutiflora. Site H19 at Mullumbimby Creek was located on rhyolitic soils. Pink Bloodwood was dominant with Brush Box also present. The midstratum was dominated by Brush Box, Sweet Pittosporum and Tree Heath. The 49
A GREENPRINT FOR A SUSTAINABLE FUTURE sparse lower stratum included a grass tree Xanthorrhoea sp. and Sandfly Zieria. The ground stratum included a grass Entolasia sp., a mat-rush, Native Ginger and Climbing Guinea Flower. At Coorabell, Site H20 was on rhyolitic soils with basaltic influence. Pink Bloodwood was the only species in the upper stratum. The mid and lower strata included Brush Box, Forest Oak, and rainforest species including Eumundi Quandong, Mango Bark Canarium australasicum, Jackwood Cryptocarya glaucescens, Bangalow Palm, Walking Stick Palm and Crabapple. Gristle Fern and Spiny-headed Mat-rush comprised the ground stratum. Scribbly Gum (sG) (Site PS8) Scribbly Gum was recorded mainly on rhyolitic soils with small areas recorded on basalt, metasediments and on aeolian influenced soils (Photo 3). At Skinners Shoot, Site PS8 on Pleistocene sands comprised Scribbly Gum with Turpentine sub-dominant. The midstratum included Turpentine and Hard Corkwood. The lower stratum included Baeckea stenophylla, Leucopogon lanceolatus and Sandfly Zieria. Spiny-headed Mat-rush and Midgen Berry dominated the ground stratum. Scribbly Gum-Bloodwood (sGB) (Sites LE770, BB13) Scribbly Gum-Red Bloodwood was recorded on aeolian sands and on sediments at Broken Head. Only 2.74 ha of this association were recorded in Byron Shire. It is likely that other areas exist (some smaller than 1 ha and not included in the mapping) and other small areas not identified during mapping. Nevertheless, it is probable that only small areas exist in Byron Shire. West of Taylors Lake, Scribbly Gum-Red Bloodwood forest was recorded on coastal sand. Wallum Banksia and Leptospermum polygalifolium dominated the midstratum. The ground stratum was comprised of Xanthorrhoea johnsonii and Leucopogon leptospermoides. At Wanganui, Scribbly Gum-Pink Bloodwood was recorded on rhyolitic soils (Site H10). The midstratum was dominated by Forest Oak with Forest Maple and Tree Heath also present. The ground stratum was dominated by Spiny-headed Mat-rush and a grass Entolasia sp. Scribbly Gum-Pink Bloodwood were not mapped during the survey. 4.7.7 Wattle/Mixed regrowth forest and shrubland Mixed regrowth (mr)/Wattle (W) (Sites H25, BB39, BB42, PS6, H18, H22) Blackwood was common throughout all regrowth vegetation on most soil types (Photo 9). Brush Ironbark Wattle formed dense stands in the north of the Shire on metasediments, e.g. at Marshalls Ridges. Site PS6 comprised Blackwood with Paperbark on sand at the Ewingsdale wetlands. Blackwood and Paperbark were co-dominant in the upper stratum. Blackwood, Paperbark and Heath-leaved Banksia Banksia ericifolia were present in the midstratum. Blackwood, Paperbark and Tree Shaggy Pea Oxylobium robustum dominated the lower stratum. The ground stratum included Swamp Water Fern Blechnum indicum, Feather Plant Restio tetraphyllus and Bracken Fern. Blackwood was recorded on rhyolite at Wilsons Creek with Red Ash and Brush Box also present in the upper stratum (H25). Rainforest species in the mid and lower strata included Brown Kurrajong, Bangalow Palm, Five-leaf Water Vine Cissus hypoglauca, Small-leaved Privet, Corky Prickle-vine Caesalpinia subtropica, Cudgerie, Guioa and the Vulnerable Red Boppel Nut. The ground stratum comprised Mistweed and Harsh Ground Fern. Blackwood (Site H22) was located on basalt soils at Upper Coopers Creek. Guioa and Blue Quandong were also present in upper stratum. Cudgerie, Bangalow Palm, Pencil Cedar Polyscias murrayi, Twin-leaved Coogera, Small-leaved Privet and Red Boppel Nut were recorded in the mid and lower strata. The ground stratum 50
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Byron Flora and Fauna Study 1999 - Byron Shire Council

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