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

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Estuaries inthe Illawarra are managedunder estuarymanagementprograms.EachCouncil isguidedbyan estuarymanagement program which defines priority actions,includingactions relevanttobiodiversity,in theestuaries under its responsibility.Table 19:Estuary ManagementPlansLGAWollongongLGAShellharbour LGAKiama LGAEstuaryManagementPlansEstuary Management Planfor EstuaryManagement Study andPlanfor Fairy,Towradgi, Hewitts andTramway Creeks 2005.Estuary Management Planfor SeveralWollongongCreeksandLagoons2007.This addresses the following estuaries: TomThumbLagoon (includingSpringhillandJ.J.Kelly catchments; BellambiLagoon; BellambiGully (including FarraharsCreek catchment); CollinsCreek; WhartonsCreek; Slacky Creek; FlanagansCreek(including Thomas GibsonCreek); Stoney Creek; Stanwell Creek; andHargravesCreek.ElliotLake Estuary ManagementPlan2003.MinnamurraRiver Estuary ManagementPlan2003.CrookedRiver EstuaryManagementPlan2003.7 PRIORITISING RESTORATIONWORKS ON PUBLICLANDAs partof theStrategy, anassessmentof the biodiversityvaluesof publiclandsunder Council care andcontrol (Community andCrownland)was undertakento identify priority sites forundertaking bushrestoration.Through engagement withthe biodiversity reference group, ahierarchyofvariables wasidentifiedtoprioritise those siteswith the highest biodiversityvalue. Eachof thesevariableswas classifiedtoenableasystematic rankingofsites and their relativevalues.The rankingwas basedonacombinationofvariables includingvegetationtype, connectivity (presence within aregional corridor), patchsize, andtype ofexistingmanagement.Eachvariablewas classified withdifferentscore weightingsas shown inTable 20.Priority vegetationtypes were deemedto havethe highest importance indeterminingpriority sites.Once the priorityvegetation types were identified, these werecombined withthe othervariables.Theexistingmanagementregime was alsoincludedso that current efforts wouldbeacknowledged.Table 20:Assessmentmatrix fordeterminingpriorities for protectionand restorationof publiclandsVariablePriority VegetationScoringapproachPriority1=4Priority2=2= 2 ifintersects withmapped regionalcorridorConnectivityPatchsize >10ha =32-10ha = 1
Table 21:Community LandPriority ScoresScorePriority10 -11 Highest Priority7-9 HighPriority3-6 ModeratePriority10ha.This categorisationisbasedonstudiesthat demonstrate that 2hais the thresholdfor plantsunder whichbiodiversity declinesrapidly (Drinnan2006). Patch size was determinedbyassessing the extentofcontinuousvegetationbeyondproperty boundaries.PrioritySitesAs aresultof the assessment processdescribedabove, arankingof Community andCrownlandsiteswerederivedfor each LGA. Themapsshowingthesepriority sitesareshowninAppendix 13.In summary the highest prioritysites for investmentin the regionare listed in Table 22.Alargernumberof High andModeratePriority sites are also defined, andcanbe seenin the complete setofmapsinAppendix 13.Table 22:Highest priority sites for investmentReserveMinnamurraRiver EstuaryCrookedRiver EstuaryJerraraDamBass PointReserveBlackbuttReserveCroome ReserveBellambiLagoon RecreationAreaIntegral EnergyPark-DarkesRdMt BrownReservePerkinsBeachPuckeysEstatePurrungully WoodlandBardessCrescentReserve,Farmborough HeightsLGAKiamaKiamaKiamaShellharbourShellharbourShellharbourWollongongWollongongWollongongWollongongWollongongWollongongWollongongILLAWARRA BIODIVERSITYSTRATEGYVol.2Background document 32
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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
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Page 24 and 25: 6.3 THREATENED SPECIESThreatenedspe
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Page 28 and 29: • To minimise the impactofdevelop
Page 30 and 31: The CrookedRiverand Seven Mile Beac
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
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