ILLAWARRA BIODIVERSITY STRATEGY Vol. 2 - Wollongong City ...

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There are anumberofother pestanimalspecies present in the region; howeverthese have notbeenlistedas theyare considered to have lesssignificant impactsonbiodiversity (DECC 2007a).Rusa, RedandFallowdeerare themostsignificantcurrent threat.Wide ranging impactsacrosstheIllawarraEscarpment include destructionof understorey vegetation.In recentyears, they have migratedfrom theRoyal NationalPark to Ulladulla, and havethe potentialtosignificantlyexpand their rangefurther south(DECC 2007a).6 BIODIVERSITY VALUESThe landformsofthe Illawarraregiongivesrisetoahighlevelof biodiversity. TheIllawarra Councilscover an areaapproximately 108,000 hectares in size.Approximately halfof thisis vegetated. Mostofthe retainedvegetationis foundon the Illawarra Escarpmentslopes and sandstone plateauwestof theescarpment,whichis largely watercatchmentland. The Illawarracoastalplain however, hasmostlybeencleared, leavingmostly isolatedremnantsof vegetationvulnerable to anumberofongoingthreats.Biodiversityvaluesappliedin the Strategy aremore fully describedbelow.6.1 ENDANGERED ECOLOGICAL COMMUNITIESThere are19 EndangeredEcological Communities (EECs)listedas threatenedunder the NSW TSC Actorthe CommonwealthEPBC Act in the Illawarra. Some are distributedacrossallthreeLGAs,others arerestrictedto particular LGAs as indicatedin Table 12.Due tothe highlevelofvegetationclearingon the coastal plainforagriculture industry and residentialdevelopment, mostvegetation typesthatoccuronthe Illawarracoastal plainare nowlistedas EECs.Other EECs alsooccuron the IllawarraEscarpment,WoronoraPlateauand MossValeTablelands. Table12 providesalistof the EECsand the prioritisationofthosecommunitiesbasedonanassessmentof thelevelof threatto thecommunity, andpopulationstatus. This assessmentmethodwas adoptedfromDECC(2008b), however, withafocuson the Illawarraregion.Appendix 3provides further informationon the distributionofEECs.Table 12:EndangeredEcologicalCommunities (EECs) of theIllawarraEndangered EcologicalCommunity(EEC)TSCActEPBCActWollongongLGAShellharbourLGAKiamaLGAPrioritiesBangalay Sand Forest yes * * * HighCoastalSaltmarsh yes * * * HighFreshwater Wetlandson Coastal yes * * * HighFloodplainsIllawarraLowlands GrassyWoodland yes * * * Highestin the Sydney BasinBioregionIllawarraSubtropicalRainforest in yes * * * HighestSydney BasinBioregionLittoral Rainforest (TSCAct); LittoralRainforest andCoastalVine Thicketsof Eastern Australia(EPBCAct)yes yes * * * HighILLAWARRA BIODIVERSITYSTRATEGYVol.2Background document 21
Melaleucaarmillaris TallShrubland yes * * HighestO'Hares Creek Shale Forest yes * HighestRiver-flat Eucalypt ForestonCoastal yes yes * * HighFloodplainsRobertsonBasaltTallOpen-forest yes * * HighRobertsonRainforest yes * * HighShale/ SandstoneTransition Forest yes yes * HighSouthernHighlands ShaleWoodlands * HighSouthernSydney ShelteredForest yes * HighestSwampOak FloodplainForest yes * * * HighSwamp Sclerophyll ForestonCoastalFloodplainsyes * * * HighSydney Freshwater Wetlands in the yes * * HighestSydney BasinBioregionTemperate HighlandPeat yes * HighThemeda Grassland onseacliffs andcoastalheadlandsyes * * High6.2 ENDANGERED POPULATIONSThe NSWTSC Actallows for the listingofendangeredpopulations.Thereare currently 35listedpopulations in NSW, withthreeoccurring in the Illawarra. Table 13detailsthe Illawarrapopulations.Table 13: ListedEndangered Populationsof the IllawarraPopulation Description LGALespedezajuncea.Knownfrom just one roadside populationsouthofDapto.Disjunct from other populations inWestern Sydney, far southcoastandsouthern tablelands.WollongongChorizemaparvilorum.Callitrisendlicheri,WoronoraPlateauPopulation.This populationhas beenrecorded from betweenAustinmerandAlbionPark.It typically occupies woodlandor forest dominatedby ForestRedGum (Eucalyptus tereticornis) and/orWoollybutt(E. longifolia).At Austinmer, the speciesis recordedfromacoastalheadland.This populationrepresent the easternlimitof the species, and isdisjunct fromotherknownpopulations.The Woronorapopulationisrestricted toasingle sandstoneoutcropapproximately twohectarein area.ShellharbourandWollongongWollongongThe Lespedeza and Chorizema populations aremost at risk, particularly as they are withinfragmentedhabitats that willface increasing threats withproposedfuture urban expansionof West Dapto/YallahCalderwood area. The Callitrisendlicheri populationisactivelymanagedbythe NationalParksandWildlife Serviceas partofDharawal Nature Reserve.ILLAWARRA BIODIVERSITYSTRATEGYVol.2Background document 22
Page 2: IllawarraBiodiversityStrategy2011Aj
Page 7 and 8: 3.2 FEDERAL LEGISLATION AND POLICYA
Page 10 and 11: developerseekingapproval toclearveg
Page 12 and 13: 3.3.11 NSW WetlandsManagement Polic
Page 14 and 15: 3.4.4 IllawarraNRMPlan2010The Illaw
Page 16 and 17: 4.2 DATA GAPSThe dataaudithighlight
Page 18 and 19: IntroductionofalienspeciesDiseasesA
Page 20 and 21: • Behavioural changesinfauna popu
Page 24 and 25: 6.3 THREATENED SPECIESThreatenedspe
Page 26 and 27: Extantvegetationfiguresin Table15 a
Page 28 and 29: • To minimise the impactofdevelop
Page 30 and 31: The CrookedRiverand Seven Mile Beac
Page 32 and 33: Estuaries inthe Illawarra are manag
Page 34 and 35: 8 GUIDING PRINCIPLESFORTHE MANAGEME
Page 36 and 37: 9.3 INDUSTRYAND INVESTMENT NSW-FISH
Page 38 and 39: DECC(2008b) Threatenedspecies prior
Page 40: NSW ScientificCommittee (2005) Fina

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