998 resultados para forest futures


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Recent research by a team from Deakin University explored the health and wellbeing benefits of civic environmentalism – voluntary communal actions undertaken to promote ecosystem sustainability, typified by membership of a ‘friends of parks’ group. The research confirmed what was known intuitively: that belonging to such a group and undertaking the activities associated with such a group exposes people not only to the benefits of the natural environment, but also to other people and to opportunities to make a contribution which is socially valued.

On the basis of those findings, a pilot project involving intentional engagement of people suffering depression and related disorders in supported nature-based activities in a woodland environment is being implemented and evaluated. This article reports on that project and discusses the implications of its findings to date, and the findings of the three earlier projects, both for urban woodland/forest managers and for the health sector.

As this contribution indicates, there appears to be potential for the use of civic environmentalism to promote health, wellbeing and social connectedness for individuals and the wider population, as well as for groups with identified health vulnerabilities. However, the realization of the benefits of such an approach will be dependent on co-operation between the environment and health sectors to create and promote opportunities for increased civic environmentalism, and to identify and address the barriers to their effective use.

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This study investigates the diet of six breeding pairs of powerful owls in the Yarra Valley Corridor in Victoria, Australia, and compares prey consumption with prey availability. The six sites represent a continuum of habitats, ranging from urban Melbourne, through the urban fringe interface to a more forested landscape. We found that powerful owls in the Yarra Valley Corridor are reliant almost exclusively on arboreal marsupial prey as their preferred diet, with 99% of their overall diet comprising four arboreal marsupial species. These four species (the common ringtail possum, common brushtail possum, sugar glider and greater glider) were also the most abundant species observed while spotlighting; however, their abundance varied along the continuum. There was a strong positive relationship with the presence of these species in the diet and their site-specific availability, indicating that the powerful owl is a generalist hunter, preying on the most available prey at a given site and in a given season. This study suggests that food resources are high in these disturbed urban fringe sites and it is unlikely that food availability in urban environments will limit the potential survival of urban powerful owls.

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In education, there is much rhetoric about a school's capacity to prepare learners for 'the future'. For example, there have been 'Schools of the future', 'Lighthouse schools of the future' and many claims from schools around the world that their roles encompass 'educating students for the future' and developing 'citizens of the future'. However, as 'futures educators', the questions must be asked: 'whose future?' and 'what future?'. Considering texts which promote this educational premise require tools and philosophical understandings, in order to deconstruct and articulate the future for which we prepare our young. This paper describes the way in which foresight literacy can be developed through engagement with explicit futures education tools and concepts. It highlights a number of futures texts indiscriminately presented within culture and society, and exposes some of the ways in which foresight (futures) understandings can be achieved. This reading, writing and articulation of a multiplicity of futures is referred to as foresight literacy. This paper does not address the 'future of literacy', but rather the way in which futures education equips students to engage with texts assuming, and describing a future.

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In New Times (Hall, 1996), there has been much rhetoric about school’s role in equipping students for the future. Futures education, or futures pedagogy, provides an interdisciplinary approach in which alternative futures may be explored, designed and articulated. Enactivism, as a theory of learning, affirms my contention that it is not enough to talk about the future. Rather, I propose that education must act as an agent of change, in equipping teachers and students alike, to imagine, critique and create possible, preferable and probable futures. This paper, then, explores the co-emergence (Manturana & Varela, 1992) of an explicit futures dimension, and teaching and learning drawing upon case studies of practice in schools.

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In the post-modern world, it has been said that there is now greater uncertainty in life than in any previous period, simply because so much has changed as a result of the speed of technological change.

From the educational view point, Futures education is a necessity as times continue to change, in regards to both the sustainability of the person and that of the environment. It is true that uncertainty will always remain an aspect of thinking about the future, however in order to make what is ahead more accessible to everyone, educators have a duty of care to their students to facilitate or educate in regards to tools, concepts and understandings which will help students to become world shapers, and shapers of their own personal futures. This must occur as part of ongoing educator training.

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This paper investigates time-varying optimal hedge ratios in individual stock futures markets in India. The analysis employs data on individual stock futures from an unexplored but highly traded (both in terms of volume and quantity) emerging market. The hedge ratios derived in this study incorporate mean reversion in volatility, which is an important extension of the bivariate BEKK-GARCH model of Engle and Kroner. This extension generates improved optimal hedge ratios over the traditional BEKK-GARCH model and static error correction type alternatives.

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The primary objective of this article is to investigate volatility transmission across three parallel markets operating on the Sydney Futures Exchange (SFE), both within and out of sample. Half-hourly observations are sampled from transaction data for the share price index (SPI) futures, SPI futures options, and 90-day bank accepted bill (BAB) futures markets, and the analysis is carried out using the simultaneous volatility (SVL) system of equations as well as competing volatility models. The results confirm the poor ability of GARCH models to fit intraday data. This study also applies an artificial nesting procedure to evaluate the out-of-sample volatility forecasts. Implied volatility has very limited (if any) predictive power when evaluated in isolation, whereas the SVL model with implied volatility embedded provides incremental information relative to competing model forecasts.

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Forest management involves multiple objectives, multiple stakeholders, complex socio-ecological and political interactions. Public involvement in forest decision making is a challenging task that involves controversies. Various participatory tools such as public consultation forums, public comment processes, opinion polls are used to consult and to obtain inputs from communities. All these methods can provide useful information but they fail to quantify the trade-offs systematically and offer little help in minimizing conflicts. The Australian Regional Forest Agreement (RFA) program was implemented in response to the decades of conflicts and debate between various stakeholder groups and government over the use and management of forest resources. So far, it has not been able to minimize conflicts in the forestry sector, partly due to its poor incorporation and integration of stakeholder values. This paper uses the value functions approach in modelling stakeholder values in regional forest planning. The results of the study indicate that this method can help to incorporate value preferences effectively into the decision making process. It can also increase the transparency and credibility of the forest planning exercises such as RFA process.

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Forest policy decisions inherently involve multiple attributes and risk and uncertainty as they largely deal with complex biological, ecological, and socio-political systems. Identifying risk preferences and quantifying their inter-relationships and tradeoffs are useful in formulating better forest policy. Often, technocrats and experts deal with risky decisions, but ideally, stakeholder risk characteristics should be explicitly considered in making policy decisions. This paper analysed societal risk preferences on public forest land-use attributes using multi-attribute utility theory (MAUT). The results indicate significant risk-averse behaviour towards old-growth forest conservation and forest-based recreation but less risk-averse behaviour towards native timber extraction. Overall, the respondents preferred a more conservative forest land-use option, which is consistent with their risk attitudes. The method provides insights into risk preferences of forest stakeholders, which could lead to better understanding of forest management conflicts. Moreover, the method explicitly distinguishes the technical and value components of the decision and is useful in unravelling public risk preferences in multiple-use forest planning situations.

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This paper investigates time-varying optimal hedge ratios in individual stock futures markets in India. The analysis employs data on individual stock futures from an unexplored but highly traded (both in terms of volume and quantity) emerging market. The hedge ratios derived in this study incorporate mean reversion in volatility, which is an important extension of the bivariate BEKK-GARCH model of Engle and Kroner. This extension generates improved optimal hedge ratios over the traditional BEKK-GARCH model and static error correction type alternatives.

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The Regional Forest Agreement process has dominated Australian forest policy for the past decade. The RFA process set in place a mechanism by which benchmark conservation values were established for forest  ecosystems, whilst addressing the needs of the timber industry. The outcomes of a number of RFA's have been fraught with controversy. Key stakeholder groups have shown disagreement with processes and  outcomes of methods employed by government both in establishing conservation reserves and areas allocated to timber harvesting. This research uses non-linear techniques to examine the dynamical behavior in stakeholder responses and to identify patterns of behavior that may lead to prediction of stakeholder responses. The method developed in this research provides a bridge between social sciences and Chaos theory.1