Capacity reduction, quota trading and productivity: the case of a fishery *

We present the first ex post study that quantitatively analyses the effects of a licence buy-back and enhanced quota trading on the profitability and productivity of individual vessels in a fishery. Using firm-level data and a profit index decomposition method, we find that small and large vessels and three different trawler fleets all experienced substantial productivity gains in the year immediately following a licence buy-back and the establishment of a quota brokerage service. The apparent ongoing benefits of the buy-back and increased quota trading over the sample period are in stark contrast to the generally unfavourable long-term outcomes commonly associated with vessel buy-backs in input-controlled fisheries. Copyright Australian Agricultural and Resource Economics Society Inc. and Blackwell Publishing Ltd 2006.

Modelling changes in the distribution of the critical food resources of a specialist folivore in response to climate change

Aim An important consideration when planning to conserve a species under climate change is to understand how the distribution of its food resources may also contract or shift under those same climatic conditions. Here, we use a case study to demonstrate a spatial conservation planning approach to inform decisions about where, under climate change, to protect and restore critical food and habitat resources for highly specialized species. Location Eastern Australia. Methods We developed fitted models for the koala (Phascolarctos cinereus) and five of its key eucalypt food trees using the maximum entropy algorithm available in Maxent. We then projected these models using a range of IPCC A1FI climate change scenarios and identified areas with a higher probability of occurrence. We calculated where the koala and its food trees may co-occur under future climate change. Results The koala and its food trees experienced significant range contractions as climate change progressed, sometimes to regions outside their current distributions. The inland species Eucalyptus camaldulensis and Eucalyptus coolabah contracted from the more arid interior, which is outside the koala range, but persisted in the eastern regions of the koalas range, while Eucalyptus viminalis, Eucalyptus populnea and Eucalyptus tereticornis contracted eastwards and southwards, with a fragmented distribution. The highest probabilities of overlap between koalas and their food trees were identified in fragmented coastal and southern regions of the koalas current range. Main conclusions The application of a robust species distribution modelling decision support tool identified important changes, under climate change, in the distribution of a specialist species and its key food trees. These distributions did not change in complete synergy and therefore areas of overlap varied, depending on the food tree species modelled. This is of particular importance in a conservation planning context, when considering targeted protection and restoration of species-specific habitat resources

The coupling of rural communities with their economic base: agriculture, localism and the discourse of self-sufficiency

In the context of the changing socio-economic position of agriculture, this paper is concerned with the governmental relations associated with managing the decoupling of society from economy and the ensuing question about how the economic base can be adequately utilised to ensure continued material sustenance for the community. Central to these challenges is the role of social policy in co-ordinating processes of change against society's capacity for change, taking into account the increasing realisation that the both the capacity of the planet and its economies are finite. Localism is increasingly being promoted as a key social strategy which communities can use to address their needs to secure material sustenance. Under this form of localism, communities are required to secure their own socio-economic sustainability by taking an entrepreneurial approach to developing their local assets and resources. Societies are facing questions about the viability of both interventionist and market-based approaches for ensuring the continued sustenance of given communities. But, since localism does not have the capacity effectively to deal with the question of the carrying capacity of the economic or environmental base at a societal level, one must query the extent to which faith can be maintained in localism as an effective strategy for the future