Maam Water Reserve
The Maam Water Reserve, is a small 7 hectare public land area in Allansford, just 6km north-east of Warrnambool. The reserve encompasses a number of vegetation communities, including the endangered Plains Grassy Woodland and Swamp Scrub, as well as a number of wetland communities including Plains Grassy Wetland, Plains Sedgy Wetland, and Aquatic Herbland. These wetland communities are likely to be fed by groundwater emerging from a freshwater spring.
There are a number of significant flora populations within the reserve, including the Basalt Leek-orchid (Prasophyllum viretrum) which is endemic to the Western Volcanic Plains, only known to a handful of grassland sites. The ongoing management of woody weeds present Maam reserve such as Gorse (Ulex europeaus) and non-indigenous Coast Wattle (Acacia longifolia spp.) will be important in providing an open ground cover structure to promote the growth and recruitment of this rare orchid, as well as many other native grassland species present.
The Warrnmabool Society of Growing Native Plants (SGAP) group have played a key role in promoting conservation management at the reserve, already being successful in sourcing funding through government agencies for the completion of comprehensive vegetation surveys and development of management recommendations, undertaken by Ecology Australia. Nature Glenelg Trust will continue to work collaboratively with the Warrnambool SGAP group in the current conservation project.
Mortlake Common Flora Reserve
The Mortlake Common Flora Reserve represents one of the largest and most herb-rich grasslands within the Western Volcanic Plains region, approximately 300 hecatares in size. The reserve encompasses Plains Grassland/Plains Grassy wetland mosaics, and formerly Grassy Woodland, as indicated by the presence of scattered River Red Gums (Eucalyptus camaldulensis) and Tree Everlasting (Ozothamnus ferrugineus).
A number of Leek-orchid populations occur within the reserve, including the Basalt Leek-orchid, as well as the undescribed Western Gaping Leek-orchid (Prasophyllum sp. aff. correctum), with the latter known only to this site. The management of invasive species such as Gorse, as well as Phalaris (Phalaris aquatica) will be undertaken to promote an open and functioning grassland system, and increase the habitat condition for these rare flora species.
Lake Linlithgow and Lake Bulrush Lake Reserve
Lake Linlithgow and Lake Bulrush Lake Reserve (L.R) encompasses a number of volcanic lakes, formed by the moulding and weathering of basalt lava flows. These formations are very unique rare landforms in the western district, and create habitats critical to waterbirds of the region. Lake Linlithgow, most significant in size (over 1400Ha), is comprised of a number of vegetation communities including Plains Grassland, Brackish Wetland and saltmarsh communities.
The Vunerable (EPBC Act 1999) Salt Lake Tussock-grass (Poa sallacustris) occurs within the reserve, in a distinct littoral zone around the lake fringes. This small, spreading grass only reaches 30cm when in flower, and is thought to have the ability to spread rhizomatously in response to inundation and soil property changes around the lake. Invasive weeds such as the Spiny Rush (Juncus acutus), Tall Wheat Grass (Thinopyrum ponticum), and Phalaris are encroaching into the habitat of the Salt Lake Tussock-grass along the lake shores, competing with and shading out the low lying native vegetation.
The Hamilton Field Naturalists Club (HFNC) have been actively promoting restoration and conservation of the lake reserve over a number of decades, including the removal of grazing which has seen impressive recovery of the native vegetation. Nature Glenelg Trust will be working with the HFNC, as well as land managers Parks Victoria and the Southern Grampians Shire Council to undertake strategic management of the threatening weeds, and promote conservation of the site to the wider community.
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