{"id":"F2020L01603","name":"Amendment to the list of threatened ecological communities under section 181 of the Environment Protection and Biodiversity Conservation Act 1999 (EC149)","slug":"amendment-to-the-list-of-threatened-ecological-communities-under-section-181-of-the-environment-prot","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":130808,"registerId":"commonwealth-F2020L01603-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Minister for the Environment","sectionType":"part","heading":"Minister for the Environment","content":"# Minister for the Environment\n\n  \nSCHEDULE\n\nKarst springs and associated alkaline fens of the Naracoorte Coastal Plain Bioregion\n\nThe Karst springs and associated alkaline fens of the Naracoorte Coastal Plain Bioregion is a type of groundwater dependent wetland limited to the Gambier Limestone formation (Gambier Karst Province). It occurs in the Bridgewater subregion of coastal south-eastern South Australia and south-western Victoria. The ecological community’s primary defining features are the underlying limestone geology, predominantly freshwater karst fed (alkaline) springs, soaks, pools or streams and associated fringing fens which include herblands, peatlands, sedgelands and/or shrubland vegetation.\n\nThe Karst springs and alkaline fens ecological community includes various interconnected habitats: an open water or aquatic zone; a submergent zone that varies with pool depth; and an emergent/fringing zone. Some occurrences have connecting channels between spring pools.\n\nWhen present, the open freshwater aquatic zone typically occur as pools such as in a drowned cave system, sinkhole or lake. The submerged assemblage of aquatic vegetation within spring pools is considered unique to this ecological community. Free-floating macrophytes such as duckweeds (Lemna spp.) are often evident on the surface and may extend into the emergent zone on pool fringes. The pools are generally dominated by Phytoplankton (algae) at depth. Algae in the aquatic zone include species from the genera Anabaena, Batrachospermum, Cladophora, Enteromorpha, Lyngbya, Oscillatoria, and Spirogyra.\n\nIn the submergent zone vascular plant species vary with water depth, the degree of the pool floor slope and substrate type. True aquatic plant species become evident with increasing depths beyond three metres. In some locations where water depth is generally less than six metres and the pool floor quite broad, extensive beds of macrophytes can occur. Macrophytic species can occur down to six metres and include species such as Cycnogeton procerum, Triglochin striata (Water Ribbons), Ruppia polycarpa (Sea Tassel), Hydrocotyle spp. (Pennywort) and Ranunculus inundatus (River Buttercup). Some species may extend to greater depth due to water clarity and sediment substratum, for example Myriophyllum spp. (Water-Milfoil) and Stuckenia pectinata (Fennel Pondweed). Mosses, such as Cratoneuropsis relaxa, Distichophyllum microcarpum and Fissidens rigidens, may be present on limestone outcrops and floors of submerged caverns to depths exceeding 15 metres. Epiphytic algal growth can also occur on genera such as Ranunculus, particularly when reduced water flow occurs.\n\nThe fringing soils support vegetation that ranges from reedbeds, sedgelands and herblands to shrublands. The inundated emergent zone occurs as a dense herbaceous verge of reeds, sedges and rushes which include macrophytic species, such as twig-rushes (Baumea spp.), Cladium procerum (Leafy Twig-rush), Cyperus laevigatus (Boredrain Sedge), Eleocharis gracilis (Slender Spike Sedge), Phragmites australis (Common Reed), Selliera radicans (Swamp Weed), Schoenoplectus pungens (Three-square), Schoenus nitens (Shiny Bog-sedge) and Typha domingensis (Bull-rush).\n\nAs sedgeland transitions to shrubland, the overstorey becomes typically dense with Leptospermum lanigerum (Silky Tea-tree/Woolly Tea-tree/Punung/Wiriyu) the common dominant canopy species. Other shrub species tolerant of waterlogging which may occur in the canopy include Melaleuca squarrosa (Scented Paperbark), M. ericifolia (Swamp Paperbark) and Ozothamnus ferrugineus (Tree Everlasting). Large tree species such as Eucalyptus ovata (Swamp Gum) can sporadically occur.\n\nThe understorey of the fringing zone may be dominated by tall tussock sedges such as Gahnia trifida (Cutting Grass) and Gahnia clarkei (Tall Saw-sedge) and also includes herbaceous plants such as Acaena novae-zelandiae (Bidgee-widgee), Brachyscome graminea (Grass Daisy), Centella cordifolia, Epilobium billardiereanum subsp. billardiereanum (Variable Willow-herb), Lobelia anceps (Angled Lobelia), Samolus repens (Creeping Brookweed), Senecio biserratus (Fireweed), Viola hederacea (Australian Native Violet) and genera such as Cotula, Hydrocotyle and Cycnogeton. Orchids such as Pterostylis tenuissima (Swamp Greenhood) may also be present in the fringing zone. As the shrub canopy density increases, the groundlayer can become sparse due to shading and competition.\n\nThe Karst springs and alkaline fens provides diverse habitats for a range of aquatic, terrestrial and volant animals that rely on these permanent to near permanent wetlands. The diverse aquatic habitats associated with the Karst springs and alkaline fens also provide resources for migratory waders and waterbirds in addition to refuge for birds from more arid regions.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument performs exactly the function contemplated by section 181 of the EPBC Act: listing a specific threatened ecological community. The detailed scientific description serves the statutory purpose of identifying what is being protected, without expanding beyond the original legislative intent."},"complexity_factors":["Single, discrete administrative action: adding one named ecological community to a statutory list","No operative provisions, penalties, or enforcement mechanisms—merely descriptive text identifying the ecological community","Extensive scientific description (habitat zones, species lists, geology) but this is evidentiary/identification material, not legal complexity","No cross-references, defined terms, or conditional logic within the instrument itself","Relies entirely on external statutory framework (EPBC Act section 181) for legal effect"],"plain_english_summary":"The Karst springs and associated alkaline fens of the Naracoorte Coastal Plain Bioregion have been listed as a threatened ecological community under the Environment Protection and Biodiversity Conservation Act 1999. That means groundwater‑fed limestone springs and their unique underwater and fringing vegetation in coastal south‑east South Australia and south‑west Victoria now receive federal protection—so activities like development, mining or agriculture that could significantly impact them may need federal approval and face penalties if they cause deliberate destruction."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"This amendment expands the set of communities listed under section 181 by adding a new, specifically described ecological community (karst springs and alkaline fens in the Naracoorte Coastal Plain Bioregion), thereby widening the EPBC Act’s coverage to include these groundwater‑dependent wetlands in the Gambier Limestone formation across parts of South Australia and Victoria."},"complexity_factors":["Technical ecological detail: extensive species lists (aquatic, fringing, shrub and tree taxa) and specific habitat descriptions increase identification and assessment difficulty.","Hydrological dependency: reliance on karst groundwater (Gambier Limestone) requires hydrogeological data for mapping and impact assessment.","Habitat heterogeneity: multiple interconnected zones (open water, submergent, emergent/fringing, channels, peatlands) create variable management needs.","Geographic and jurisdictional scope: occurs across coastal south‑eastern South Australia and south‑western Victoria, requiring cross‑jurisdictional coordination.","Detection and monitoring challenges: deep submerged vegetation and cavernous features (vegetation to >15 m depth) complicate ecological surveys.","Regulatory linkage: amendment operates via section 181 of the EPBC Act, so legal/approval consequences attach but require policy and administrative action to implement."],"plain_english_summary":"This instrument adds the “Karst springs and associated alkaline fens of the Naracoorte Coastal Plain Bioregion” to the list of threatened ecological communities under section 181 of the Environment Protection and Biodiversity Conservation Act 1999. It identifies a groundwater-dependent wetland type in the Gambier Limestone (Bridgewater subregion across coastal south‑eastern South Australia and south‑western Victoria) and matters because listing brings the community within the Act’s regulatory framework, affecting landholders, water users, developers and agencies whose activities may impact these wetlands."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/amendment-to-the-list-of-threatened-ecological-communities-under-section-181-of-the-environment-prot","history":"/api/acts/amendment-to-the-list-of-threatened-ecological-communities-under-section-181-of-the-environment-prot/history","analysis":"/api/acts/amendment-to-the-list-of-threatened-ecological-communities-under-section-181-of-the-environment-prot/analysis","conflicts":"/api/acts/amendment-to-the-list-of-threatened-ecological-communities-under-section-181-of-the-environment-prot/conflicts","importantCases":"/api/acts/amendment-to-the-list-of-threatened-ecological-communities-under-section-181-of-the-environment-prot/important-cases","documents":"/api/acts/amendment-to-the-list-of-threatened-ecological-communities-under-section-181-of-the-environment-prot/documents"}}