· Biomass reduction by grazing needs to be managed to enhance the range of grassland values, including rare plants, stony knolls and riparian verges.
The Craigieburn Grassland Interim Mangagement Statement, produced in 1998, includes much relevant information.
An area of approximately 100 ha of open space along and surrounding Merri Creek between Barry Rd and Cooper St including the 52.6 ha Bababi Marning (Cooper St Grassland) Reserve managed by Parks Victoria. (It is one of four grassland sites along Merri Creek that together form a proposed Parks Victoria park to be called Marran Baba, or "body of the mother.")
The Plains Grassland area is of national significance as habitat for two nationally significant species. The grassland was rated as having State (floral) significance (DCE 1990) and is one of the largest areas of relatively undisturbed native grasslands in the Melbourne area.
The Merri Creek and the River Red Gums along the escarpment are rated as State significance on the basis that the trees infrequently provide habitat for endangered species.
Bababi Marning, together with Galgi Ngarrk (Craigieburn Grassland) and the link between, is listed on the Register of the National Estate (Australian Heritage Commission 1998). The listing was on the basis that the
Maintain intact riparian link upstream to Galgi Ngarrk (Craigieburn Grassland) and downstream to Galada Tamboore.
DCE (1990) listed Cooper St Grassland (now Bababi Marning), as one of eight highly significant grasslands in the Melbourne area in private ownership. It recommended investigating its purchase by the government and reservation for conservation.
A small section (22 ha) was subsequently acquired by the state government as a Crown Land Reserve and is managed for conservation. A further 21 ha was added to the reserve in compensation for construction of the Craigieburn Bypass, and the Merri Creek frontage was transferred to Crown Land as part of a deal with the Istra Social Club which owned it as part of the title to their Clubroom area.
Approximately 40 ha of the grassland was lost in 2007-8 to industrial development.
At the southern end of the site there is a stream and floodway zone managed by Melbourne Water. In 2003 a group of wetlands were constructed on part of this site for stormwater treatment.
Strong consideration must be given to acquiring the creek frontage east side adjacent to the reserved land (and linking adjacent sites) from the private owners. In addition to protection of the important species and communities occurring there, and maintaining the habitat corridor - having control of the creek-line is important for protecting the reserved areas from incursions such as the infamous "Jerilderie Cattle Invasion of Merri Creek" of Nov 2002 - late April 2003. (Friends of Merri Creek 2003, p. 4-5)
There is less than 2% of Victoria’s original volcanic plains grasslands remaining. These grasslands are listed as critically endangered by the Federal Government.
This is why galgi ngarrk (Craigieburn Grassland) Nature Reserve is so important. The Wurundjeri Woi-wurrung people have named the reserve galgi ngarrk meaning "Back Bone." It's the largest native grassland in the new marram baba Merri Creek Parklands (marran baba means "body of mother"). The grassland covers approximately 400 hectares between Craigieburn Rd East and OHerns Rd in Melbourne's outer north. It contains Nationally Significant endangered plants such as the Matted Flax-lily Dianella amoena and Curly Sedge Carex tasmanica. The grassland is also home to habitat for Nationally significant fauna such as the Striped Legless Lizard, the Plains-wanderer and the Golden Sun Moth.
To visit galgi ngarrk (Craigieburn Grassland), permission must first be obtained from Parks Victoria.
The Golden Sun Moth is a sun loving moth that is found at galgi ngarrk. The moth was rediscovered in this area in 2003. Individuals start emerging from their cocoons around mid-November and are rarely seen later than mid-February. They live out their short adult life span in only a few days. See the Golden Sun Moth Lifecycle.
This critically endandered animal has made a friend in the Friends of Merri Creek who have planted 7,500 small wallaby grasses in the galgi ngarrk Reserve. These wallaby grasses are the favoured food for the Golden Sun Moth caterpillar . The female is thought to lay her eggs in the base of the grasses.
The grasses also provide a playground for the mating dance, with the male moth patrolling the grasslands between 11am and 2pm on sunny days, flying rapidly about a metre above the grass searching for females to mate with while dodging predatory dragonflies and birds.
Females rarely fly. They sit on the ground and flash their brilliantly coloured wings of metallic gold to attract the male (photo above: female Golden Sun Moth).
The Friends of Merri Creek and Merri Creek Management Committee have undertaken surveys of this critically endangered species. See this detailed report on the Golden Sun Moth surveys (pdf).
More detail on galgi ngarrk (Craigieburn Grasslands) can be found here.
galgi ngarrk is made up of Plains Grassland, Grassy Wetland, Stony Knoll Grasslands and Escaprment Shrublands
The Plains Wanderer is a small, rare ground-dwelling bird found in lowland grasslands, such as Galgi Ngarrk.
Moomba Park consists of approximately 30 hectatres of open space on the western side of Merri Creek, in Fawkner. The park was the site of Merri Creek Managment Committee’s bicentennial (1988) planting project at which many thousands of indigenous trees and shrubs were planted in hundreds of plots across the landscape. These plots now provide, extensive woodland habitat across the landscape, supporting woodland birds and animals such as the Crested Shrike-tit and visiting Yellow-tailed Black Cockatoos. | |
Moomba Park is now a valuable habitat site (photo from 2006) |
However this site is still under threat from patches of un-managed land within the park which harbour weeds such as blackkberry and pest animals such as rabbits that threaten existing native remnants and revegetation plantings.
The Fawkner and the Reservoir communities that surround the Merri Creek in Moomba Park are notable for being a community with a highly diverse ethnic background, including a high proportion of recently arrived migrants. Moomba Park Primary School has also been engaged in many environmental activities at this site.
To find out about the geology of this site click here.
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