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Upper Boat Harbour Creek Wetlands - SA080
|Level of importance:||National - Directory|
|Location:||The listing includes six wetlands within the Upper Boat Harbour Creek Catchment on the southern Fleurieu Peninsula within pine forest, Deep Creek Conservation Park and on private land. The south Australian wetland ID and locations are as follows: S2130 35 degrees 36' 27" S, 138 degrees16' 00" E; S2131 35 degrees 36' 17" S, 138 degrees 17' 00" E; S2141 35 degrees 35' 05" S, 138 degrees 18' 45" E; S2142 35 degrees 35' 47" S, 138 degrees 18' 10" E; S214935 degrees 35' 57" S, 138 degrees 16' 47" E; S2150 35 degrees 36' 03" S, 138 degrees 16' 32" E.|
|Elevation:||220 - 330 m asl.|
|Other listed wetlands in same aggregation:||None.|
|Wetland type:||B15, B13|
|Criteria for inclusion:||1, 2, 5,|
|The site contains six heavily vegetated Fleurieu Peninsula swamps in creek lines of the upper Boat Harbour Creek catchment. Fleurieu Peninsula swamps are a threatened ecological community.|
|Physical features: |
Stream and spring fed swamps, on a rubbly waste mantle of ferruginous gibbers, sandstone and claystone. Mean annual rainfall 800 mm.
|Hydrological features: |
Water course: Boat Harbour Creek. Water Sources: Local runoff, spring and channel fed. Water chemistry: pH 5.14 - 7.4; Conductivity 101 - 227 uS/cm; Dissolved Oxygen c. 7.5 ppm; Temperature 7.9 - 15.5 C.
|Ecological features: |
The sites are composed of closed of wet shrubland and fernland with a range of vegetation assemblages present across the sites. Dominant riparian vegetation includes Leptospermum longitudinale, Leptospermum continentale, Baumea rubiginosa and Lepidosperma longitudinale. Buffer vegetation includes Eucalyptus cosmophylla and Pteridium esculentum.
These pristine swamps support a species rich and structurally diverse assemblage of plants and animals. No major disturbance factors are apparent. Fleurieu Peninsula Swamps are a threatened ecological community (EPBC Act 1999). These swamps support a range of threatened flora and the Southern Brown Bandicoot which is threatened at state and national levels (Sv, Ne) and Mount Lofty Ranges Southern Emu-wren which is endangered at state and national levels (Se, Ne).
|Notable flora: |
These wetlands contain 37 plant species threatened at a regional level and 14 species threatened at a state level, these include:
Boronia parviflora - Sr, Diuris brevifolia - Sr, Drosera binata - Sr, Gonocarpus micranthus ssp. micranthus - Sr, Leucopogon hirsutus - Sr, Microtis atrata - Sr, Myriophyllum amphibium - Sr, Schoenus discifer - Sr, Schoenus laevigatus - Sr, Schoenus lepidosperma ssp. - Sr, lepidosperma - Sr, Sprengelia incarnata - Sr, Viminaria juncea - Sr, Xanthosia tasmanica - Sr, Xyris operculata - Sr.
|Notable fauna: |
Threatened Species: Southern Brown Bandicoot, Isoodon obesulus obesulus (Sv, Ne) and Mount Lofty Ranges Southern Emu-wren Stipiturus malachurus intermedius (Se, Ne).
|Other Fauna: |
See Taxon information.
|Social and Cultural values: |
|Land tenure: |
Tenure on site: Public and Private; Surrounding Public and Private.
|Current land use: |
Onsite: Conservation Park, Vacant/Unused and Grazing (Sheep). Surrounding: Conservation Park, Forestry (Pine) and Grazing (Sheep).
|Disturbance or threat:|
Past/Present: Decreased water regime, fragmentation by roads and nutrient enrichment from agriculture. Potential: Pine forest encroachment, Phytophthora cinnamomi infection.
|Conservation measures taken:|
Swamps in the lower reches of the area are protected within Deep Creek Conservation Park.
|Management authority and jurisdiction:|
SA Department for Environment and Heritage, Forestry SA and Private.
(Harding in press) See SA Reference List
|Compiler & date:|
G Anderson, SA Department for Environment and Heritage, 30/5/05.
South Australian Gulf|