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Remnant vegetation survey : Darwin to Palmerston region : a report to Greening Australia N.T.



Remnant vegetation survey : Darwin to Palmerston region : a report to Greening Australia N.T.


Brock, John 1951-


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Made available via the Publications (Legal Deposit) Act 2004 (NT).; Remnant vegetation is defined as an area of land which contains native vegetation in a natural state. Much remnant vegetation has been lost or seriously degraded as a result of urban expansion, clearing and development. Poor land management practices have also contributed to long term deterioration of native bushland. Factors causing negative impact include uncontrolled fires, weed intrusion, stormwater runoff, unformed tracks with subsequent erosion, and indiscriminate dumping of household and industrial waste. The main aim of this survey was to identify, describe and map areas of native remnant vegetation and to both determine and graphically represent their significance.




Vegetation surveys -- Northern Territory -- Darwin Region; Plants -- Northern Territory -- Darwin Region; Vegetation, Remnant

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Greening Australia?

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Darwin (N.T.)


43 leaves ; 30 cm.

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. , vulnerable to erosion and disturbance and are stabilised by the vegetation cover. At site 62, on lower footslopes on the southern side of the area, an interesting prostrate vine, Dendrolobium sp. (ref. A77t6 N. T. Herbarium), was identified as a co-dominant in the ground layer vegetation. Recorded previously from the Pine Ck. and Litchfield Park areas, it is uncommon in the Darwin Municipality. Near site 63 on south-eastern bottom slopes, a Whife-breasted Sea Eagle was sighted with nest perched in tall MeIaieuoa touoadendra tree adjacent to hinging mangroves. Located on the eastern side of the 'block' (site 54 and 54a) is a permanent billabong fed by a seasonal creek, which forms small pools just upstream of the billabong. A Paperbark and Black Wattle forest surrounds it, with mixed rainforest vegetation in the understorey, 'including Carallia brachiata, EUodia erreryana, ^:'Iaeocarpus amhemious and Melastoma affine, with occasional Carpentaria aouminata. Exotic species occur as co-dominants in the upper layer (Phyllanthus emblioa) and inid layer (Mimosa pigra), and Mission Grass is dense in the grassy margins. Removal of exotics, fire management and protection could restore this area to a healthy natural habitat. . 6.8.2 Hinterland 'island' (site .49) Slightly elevated land approx. '0.5 kms south of uplands area, surrounded by mangroves and salt flats. Gravelly soil with rocks on surface. Dry coastal monsoon rainforest 'thicket (Unit 2) covers the site, with somewhat open canopy to loin, thicker understorey 5-7m, and dense tangled ground layer dominated by vines Flagellaria indica and Capparis sepiaria. Upper layer codominants are Mimusops e/engi, Acacia auriculiformis and Storeulia quadrifida. Strychnos lucida, Oroton amhemious and Canthium sp. 055756 (ref. Darwin Herbarium) are co-dominants in the inid-layer, while Diospyros calyoantha, F1aoourtia territorialis, Premna odorata, AMophyllus o0bbe and Vitex aouminata are also present. Vines are dominant in the ground layer. Limited weed outbreaks of Lantana Gainara are present, with minor Pennisetum pedioillatum and Hyptis suaveo1ens on the , . ~ 36