Integration of Biodiversity and Agricultural Production across Australian Temperate Grasslands

The transformation of Australian agriculture over the 20th Century saw the conversion of native pastures to improved pastures, largely through the application of artificial fertilisers. During this time biodiversity conservation was largely confined to iconic scenic reserves on public land. Today, nationally endangered temperate native grassland communities are largely confined to private land. The development of the Landcare Movement in the 1980s highlighted the role that agricultural land managers and agricultural landscapes play in maintaining biodiversity across the continent. Research into on-farm conservation was soon being funded by governments at state and commonwealth levels, as well as industry bodies. These industry bodies generally focused on research into the place of biodiversity in production systems, particularly natural pastures, and more broadly in farm businesses. We present the following: (1) An overview of the research undertaken since 1990 in Tasmania; and (2) The results from a limited survey of graziers assessing the contemporary relevance of this research. We then evaluate the influence of industry-based research on the development of incentive programs targeted at agricultural land managers

Using Expert Knowledge to Develop Management Actions for Tasmanian Lowland Native Grasslands under Climate Change

Climate change projections for Tasmania suggest that the climate in 2070 will be warmer than present, with increasingly variable seasonal rainfall (Grose et al. 2010). Results from climate change modelling suggest that grassland communities may not exist over their current range in the future (Prober et al. 2012). Lowland temperate natural grasslands have been greatly reduced in areal extent since European settlement in the early 1800s. Two ‘Lowland temperate native grassland’ communities are listed as critically endangered under the Environment Protection and Biodiversity Conservation Act (1999): Themeda triandra grasslands and Poa labillardieri grasslands. Careful landscape planning for current and potential future grassland habitat is desirable to reduce negative impacts of climate change on natural grasslands. Experts were gathered at a two-day workshop to discuss potential management options for Tasmanian ecosystems at a range of spatial and temporal scales. This paper reports on the discussion of adaptation actions to allow for the long-term survival of natural grasslands species

Noah's ark conservation will not preserve threatened ecological communities under climate change

Background: Effective conservation of threatened ecological communities requires knowledge of where climatically suitable habitat is likely to persist into the future. We use the critically endangered Lowland Grassland community of Tasmania, Australia a

Mapping Scenario Narratives: A Technique to Enhance Landscape-scale Biodiversity Planning

Developing regional scenarios enables planners to engage land managers in discussions about the future, especially in contexts that are complex, uncertain and difficult to control. Richly-crafted qualitative narratives are an effective way to document future scenarios that integrate social, economic and biophysical attributes. Converting such narratives into spatial representations of future landscapes often relies on computational modelling. This paper presents an alternative technique. Key themes from scenario narratives are translated into spatial representations using simple rule sets within a Geographic Information System (GIS). The technique was applied to a case study exploring future scenarios for biodiversity in a predominantly privately-owned agricultural landscape. Iterative analysis of scenarios and their spatial implications enables land managers to explore outcomes from potential interventions and identify strategies that might mitigate the impact of future issues of environmental concern.This paper is an output from the Landscapes and Policy Research Hub. The hub was supported through funding from the Australian Government’s National Environmental Research Programme and involved researchers from the University of Tasmania, The Australian National University, Murdoch University, the Antarctic Climate and Ecosystems Cooperative Research Centre, Griffith University and Charles Sturt University

Mapping scenario narratives: a technique to enhance landscape-scale biodiversity planning

Developing regional scenarios enables planners to engage land managers in discussions about the future, especially in contexts that are complex, uncertain and difficult to control. Richly-crafted qualitative narratives are an effective way to document future scenarios that integrate social, economic and biophysical attributes. Converting such narratives into spatial representations of future landscapes often relies on computational modelling. This paperpresents an alternative technique. Key themes from scenario narratives are translated into spatial representations using simple rule sets within a Geographic Information System (GIS). The technique was applied to a case study exploring future scenarios for biodiversity in a predominantly privately-owned agricultural landscape. Iterative analysis of scenarios and their spatial implications enables land managers to explore outcomes from potentialinterventions and identify strategies that might mitigate the impact of future issues of environmental concern

Adaptation pathways for conservation law and policy

Globally, biodiversity is under increasing pressure from human activities despite protective measures in conservation laws. Climate change will exacerbate those pressures and the effects of habitat loss and species decline. Current approaches to conservation law in most countries focus on establishing protected areas and limiting activities outside reserves that might affect priority species, habitats, and ecological communities. These measures have had mixed success depending on scale and implementation, but are likely to perform poorly under conditions of future change. To prepare for the future, we consider how conservation law and policy needs to anticipate and manage for future change; widen its scope beyond species and ecological communities that are currently threatened; and support adaptive management of priority areas and species. Using Australian conservation law as a case study, we outline three possible routes by which this shift could occur. The first involves enhancing the adaptiveness of conservation law, the second expands the focus of conservation law from protected areas and listed species to include ecosystems and ecosystem services, while the third attempts to do both simultaneously. We examine the legal mechanisms needed to implement each route, examples of their use in practice, and barriers that must be overcome for successful implementation