CASE STUDY — TERRESTRIAL ECOSYSTEMS — SOUTH AUSTRALIA Assessing Native Vegetation Condition using the Bushland Condition Monitoring Method and South Australian Biodiversity Assessment Tool (SABAT) Description The South Australian State of the Environment Report 2003 (Nicholson et al 2003), noted that there was a ‘critical shortcoming’ in ‘scientific techniques for measuring the condition of key vegetation communities’. The Nature Conservation Society of South Australia (NCSSA) Bushland Condition Monitoring Program and the South Australian Biodiversity Assessment Tool (SABAT) address this shortcoming, and provide an innovative approach to building community capacity in vegetation management. The program allows conservation volunteers, landholders and extension professionals to conduct an effective evaluation of the outcomes of on-ground activities on the condition of remnant vegetation. It will also allow Natural Resource Management (NRM) boards and state agencies to quantify the biodiversity return from investment in regional revegetation and vegetation management projects, and as such has a high degree of public benefit. Current levels of investment in on-ground works are high and justification that the money was well spent is essential to the ongoing success of conservation efforts. The projects and methods Every land manager and volunteer involved in the restoration and management of South Australia’s biodiversity wants to know that their efforts are making a difference. Until the NCSSA developed the Bushland Condition Monitoring Program, no cost-effective tools were available for conservation volunteers, land managers or NRM professionals to measure their progress and evaluate their efforts in conservation of native vegetation. The problem of monitoring the condition of native vegetation is one of science and capacity. Traditional methods have required high levels of expertise (usually beyond the capability of volunteers) and intensive sampling efforts which have high cost and cover only small areas. These methods have not been available for use by volunteers, land managers and even many trained extension professionals. The NCSSA method has been designed specifically for use by volunteers and land managers, because no one else can take information about vegetation condition and act to manage the vegetation in the long term, especially on private land. With non-professionals as the target user, the NCSSA has developed a method designed to detect ecologically significant changes with minimal training and effort on the part of managers and volunteers. Putting this tool in the hands of the managers of native vegetation has the potential to radically influence vegetation management as it becomes increasingly evidence-based. The low cost, low expertise approach of the NCSSA method engages community capacity and will result in unprecedented knowledge of the condition of native vegetation in South Australia, and as yet unseen levels of direct feedback and reward to the managers of native vegetation. Without funding support, the NCSSA (a volunteer-managed non-government organisation) developed the ‘Bushland Condition Monitoring Manual for the Southern Mount Lofty Ranges’ (Croft et al 2005). The project has since expanded to develop similar Manuals for the Upper South East, Murray Darling Basin, Northern and Yorke Districts, and Eyre Peninsula NRM regions. The program has become the basis of South Australia’s first full-scale market-based biodiversity stewardship project (BushBids) and is used by Trees for Life and other volunteer agencies to measure change in native vegetation condition. The project crosses the boundary between community capacity and science. It delivers outcomes on two fronts: it builds the capacity of conservation volunteers, managers and extension professionals to understand and manage native vegetation through a training and support program it is the only tool that has been developed that will enable reporting of the condition of native vegetation in South Australia at a regional and state scale and is compatible with the approach to the monitoring of native vegetation condition for the National Native Vegetation Condition Indicator (Crossman and Smith 2006). The Manual provides a cost effective method to identify, assess and score key environmental indicators of bushland condition. The indicators are: Plant Species Diversity, Weed Abundance & Threat, Structural Diversity, Tree Habitat Features, Regeneration, Tree & Shrub Health, Feral Animals, Total Grazing Pressure, Fauna Species Diversity. These indicators are benchmarked using available data and provide objective and instantaneous measures of change in the condition of vegetation. The indicators measure dynamic attributes of bushland that tell us something about its current condition. Regular scoring of each indicator will demonstrate how bushland is changing, the magnitude of such changes, and if the condition or health of the bushland is improving, deteriorating or remaining stable. Only a moderate level of expertise is required to score the indicators (as the user is guided through the process with interpretive diagrams and descriptive text) and so the monitoring manual is useful to both community members and skilled professionals. The South Australian Department for Water, Land and Biodiversity Conservation has (DWLBC) developed the South Australian Biodiversity Assessment Tool around the NCSSA method. The South Australian Biodiversity Assessment Tool (SABAT) was originally developed to allow assessment of the biodiversity value of native vegetation for 2 ASSESSMENT OF AUSTRALIA’S TERRESTRIAL BIODIVERSITY 2008 the Upper South East Dryland Flood and Salinity Program, using the core methodologies described in the Bushland Condition Monitoring Manual. It has since been used by the Bushbids Eastern Mount Lofty Ranges Biodiversity Stewardship Initiative to assess sites along the eastern flanks of the Mount Lofty Ranges as part of the Australian Government Department of Environment, Water, Heritage & the Arts (DEWHA) ‘Maintaining Australia’s Biodiversity Hotspots (MABH)’ program. It is a powerful tool that has the capacity to: At an individual site level: provide site based reports on current vegetation condition within a site provide reports on change of vegetation condition within a site. At a regional/state scale provide a central repository for Bushland Condition Monitoring data collate and report regional data on a number of attributes related to vegetation condition. Outcomes As of 2008, data has been collected from over 500 sites across these five different NRM regions. The program has also trained over 300 people from 42 different community groups and organisations. Over 180 of these people have evaluated Bushland Condition Monitoring training. Over 85 per cent agreed that they had learnt new skills and concepts, and over 75 per cent indicated they would change their actions as a result of the course. Strong partnerships with other NGOs and community groups have been developed, particularly Trees for Life, who alone have had 49 different volunteers and staff participate in training, and who are currently monitoring in excess of 20 sites. The MABH Bushbids Eastern Mount Lofty Ranges Biodiversity Stewardship Initiative in the Eastern Mount Lofty Ranges has been able to use the NCSSA method to assess more than 160 native vegetation sites and provided information on monitoring to more than 70 private owners of high conservation value native vegetation. Recommendations and future actions The NCSSA and DWLBC are working collaboratively to continue training and support data entry from volunteers, landholders and extension staff. The NCSSA will also continue to develop protocols for undertaking regional monitoring with DWLBC and the regional NRM Boards. The data collected to date in the Mount Lofty Ranges of South Australia has shown significant trends in vegetation condition, namely ASSESSMENT OF AUSTRALIA’S TERRESTRIAL BIODIVERSITY 2008 3 feral animal impacts are higher in vegetation communities with open shrub and grassy understoreys than those with sclerophyll shrub understoreys weed threat is greater in gully forests than other vegetation community types the availability of tree hollows is higher in grassy woodlands than in forests and woodlands with sclerophyll shrub understorey species recruitment was higher in forests and woodlands with dense shrub understorey than those with an open shrub understorey forests and woodlands with sclerophyll shrub understorey had higher relative plant species diversity and better vegetation structure relative to benchmarks than grassy vegetation communities (O’Connor et al 2009). These data may provide support for sub-regional planning for threats to native vegetation condition. The NCSSA is also testing and evaluating the methodologies contained within the Manual to help evaluate the power of the method to detect change, and to appropriately refine and modify the methods used, and training provided. This forms part of an ongoing commitment to refining and improving the Bushland Condition Monitoring program. Preliminary analysis of data collected from testing surveyor consistency indicates that the method provides valuable and reliable data that can be used to assess and monitor changes of interest in specific attributes of bushland that are well accepted surrogates for biodiversity value (Milne 2008). Volunteers undertaking bushland condition monitoring training in coastal vegetation Photographer Janet Pedler 4 ASSESSMENT OF AUSTRALIA’S TERRESTRIAL BIODIVERSITY 2008 Volunteers undertaking bushland condition monitoring assessment in coastal vegetation, Waitpinga SA. Photographer Janet Pedler Volunteers with a variety of skill levels being trained to assess native vegetation using the Bushland Condition Monitoring Method. Photographer Janet Pedler ASSESSMENT OF AUSTRALIA’S TERRESTRIAL BIODIVERSITY 2008 5 References Croft SJ, Pedler JA and Milne TI (2005). Bushland Condition Monitoring Manual: Southern Mount Lofty Ranges. Nature Conservation Society of South Australia Inc., Adelaide. Crossman SE and Smith F (2006). South Australian Native Vegetation Condition Indicator Pilot Project Report. Department for Environment and Heritage, Adelaide unpublished report. Milne T (2008). Can I tell if my bush is changing using the Bushland Condition Monitoring Method? Preliminary analysis of field results. Xanthopus 26(1). Nature Conservation Society of South Australia, Adelaide. Nicolson C, Payne J. and Wallace J (2003). The State of Our Environment. State of the Environment Report for South Australia 2003. Environment Protection Authority, Adelaide. O’Connor PJ, Milne TI and Bierman P (2009) Bushland Condition Monitoring in the Mount Lofty Ranges. Nature Conservation Society of South Australia Inc, unpublished report. 6 ASSESSMENT OF AUSTRALIA’S TERRESTRIAL BIODIVERSITY 2008