Since then The National Trust has acquired a total of 28 reserves.
	Central Region: Engelbrook Reserve, H K Fry Reserve, Nurrutti Reserve,Watiparinga Reserve
	Mid North: Burra Mine Site Grasslands
	Southern/Hills: Fraser Reserve, Malcolm Wicks Reserve, Nurragi Conservation Reserve, Roachdale Reserve, Sandison Reserve, Willunga Courthouse Reserve
	Yorke Peninsula: Agery Reserve and Rocky Bend Reserve, Mulbura Park.
	Riverland: Lenger Reserve, Bery Bery Reserve, Wilabalangaloo, Woolmer and Memdelbuik Reserve, Cadell Reserve, DB Mack and Doris Odgers, Cave Cliff Reserve, Overland Corner Reserve, Heron’s Bend Reserve, Loveday Reserve, Margaret Dowling Reserve
	South-east: Sherriff Reserve, Mary Elizabeth Mc Arthur Park

The conservation value of many of these areas has increased dramatically following widespread land clearance for agriculture.

The National Trust manages these reserves to conserve their biodiversity. They contain:
	a valuable diversity of plant communities.
	a number of rare and threatened species.
	sites of geological and of Aboriginal significance.

Thirteen of the reserves have Heritage Agreements awarded under the Native Vegetation Act 1991 (SA) and a further ten are being assessed. Fourteen are on the Register of the National Estate and three more have been nominated. Eleven Riverland nature reserves are included in the Bookmark Biosphere.

The management of these reserves is overseen by the Natural Heritage Manager through a volunteer network and is funded by:
	membership subscriptions to the National Trust of South Australia.
	donations and bequests.
	State and Federal Government Grants.
	sponsorship.

A sound reputation in nature conservation in South Australia has been established by the National Trust through its involvement in:
	active restoration programs within its reserve system.
	scientific documentation.
	education and community programs.
	advocacy.
Getting involved:
Volunteer working bees are held at most reserves during the year. Volunteers assist in restoring bushland by removing weeds and pests, putting up fencing where necessary and monitoring vegetation diversity and health. The National Trust of South Australia follows the Minimum Disturbance Approach when working in bushland. For more information download our working bee timetable or contact the Natural Heritage Manager on 8212 1133.
	Volunteer timetable (2007 Working Bees) Word document
	Volunteer timetable (2007 Working Bees) PDF document
	Minimum Disturbance Approach brochure PDF document