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Pose Significant Challenges (pose + significant_challenge)

Distribution by Scientific Domains

Life Sciences	50%

Selected Abstracts

Social Capital, Collective Action, and Adaptation to Climate Change

ECONOMIC GEOGRAPHY, Issue 4 2003
W. Neil Adger
Abstract: Future changes in climate pose significant challenges for society, not the least of which is how best to adapt to observed and potential future impacts of these changes to which the world is already committed. Adaptation is a dynamic social process: the ability of societies to adapt is determined, in part, by the ability to act collectively. This article reviews emerging perspectives on collective action and social capital and argues that insights from these areas inform the nature of adaptive capacity and normative prescriptions of policies of adaptation. Specifically, social capital is increasingly understood within economics to have public and private elements, both of which are based on trust, reputation, and reciprocal action. The public-good aspects of particular forms of social capital are pertinent elements of adaptive capacity in interacting with natural capital and in relation to the performance of institutions that cope with the risks of changes in climate. Case studies are presented of present-day collective action for coping with extremes in weather in coastal areas in Southeast Asia and of community-based coastal management in the Caribbean. These cases demonstrate the importance of social capital framing both the public and private institutions of resource management that build resilience in the face of the risks of changes in climate. These cases illustrate, by analogy, the nature of adaptation processes and collective action in adapting to future changes in climate. [source]

Bauxite Mining Restoration by Alcoa World Alumina Australia in Western Australia: Social, Political, Historical, and Environmental Contexts

RESTORATION ECOLOGY, Issue 2007
John H. Gardner
Abstract Alcoa World Alumina Australia mines bauxite under lease agreements with the Government of Western Australia. The leases lie in the Darling Range to the east of Perth, the capital and major population center. In addition to bauxite and other mineral ores, the Darling Range is a major potable water source and harbors a species-rich forest dominated by Jarrah (Eucalyptus marginata), a significant commercial timber. Conservation and recreation are important land uses in the region. Social and political pressures have led to stringent governmental requirements for restoration. In addition, a summer drought period, a soil deficient in most nutrients, water management challenges, an introduced disease, caused by Phytophthora cinnamomi Rands, and a post-mining ecosystem that must be conducive to the prescribed burning management of the region pose significant challenges to successful restoration. Alcoa presently mines and restores approximately 550 ha per annum. Although the "footprint" at the end of the life of the mining operations represents only about 4% of the total forest estate, Alcoa is committed to restoring the forest values of the region of all lands impacted by mining. The major objective of restoration is to enhance or maintain forest values by restoring habitat and structural characteristics of the native forest environment. Completion criteria for Alcoa's mine restoration have been developed. The original Alcoa mine at Jarrahdale has been rehabilitated, and in 2005, a 975-ha area received a "certificate of completion" and was returned to the management control of the State of Western Australia. [source]

Curriculum reform: a narrated journey

MEDICAL EDUCATION, Issue 10 2009
Geraldine MacCarrick
Objectives, Curriculum reform poses significant challenges for medical schools across the globe. Understanding the medical educator's personal and lived experience of curriculum change is paramount. This paper illustrates the use of narrative inquiry as a means of exploring the author's own evolving professional identity as a medical educator engaged in planning and leading curriculum reform and in understanding the meanings she and other medical educators attribute to their roles as agents of change in a medical school. Context, In 2002 it was decided to radically reform a school of medicine's (SoM) traditional 6-year medical degree course (converting it to a 5-year, integrated, case-based programme). This followed a decade of adverse external reports by the national accreditation agency. The 2001 accreditation report was the most significant catalyst for change, and drew attention to the School's need for a ,collective will' to introduce a series of specific curriculum reforms. To support this reform, a new curriculum working group (NCWG) supported by a dedicated medical education unit (MEU) was established. In late 2002 the author joined the School as the director of that unit. Methods, This paper draws on a 3-year study which captured the stories of the curriculum planning project between 2002 and 2005, as well as stories of curriculum reform from past deans of the same medical school dating back to 1965. Narrative inquiry is used as a means of probing the author's own lived experience as coordinator of the new curriculum project and the experiences of key members of the NCWG, including the dean, and of former deans from the same medical school over its 40-year history. Conclusions, Through a living, telling and retelling of the story of curriculum change, narrative inquiry has a role to play in both elucidating the individual lived experience of curriculum change and shaping the evolving professional identity of the medical educator as an agent of change. [source]

Monitoring the impact of climate change on biodiversity: The challenge of megadiverse Mediterranean climate ecosystems

AUSTRAL ECOLOGY, Issue 4 2010
IAN ABBOTT
Abstract The Mediterranean climate regions of Western Australia and South Africa are recognized as global hot spots of diversity. Both are threatened by climate changes that are projected to have significant impacts on the quantity and variability of rainfall and affect key ecosystem drivers (e.g. fire regimes). This poses significant challenges to monitoring programs designed to detect these impacts. Effective monitoring of the impact of climate change on biodiversity (rather than individual species) requires a cross-disciplinary, coordinated, focused and integrated approach. Ideally, this should involve a multidisciplinary team of specialists working to a common plan on the same set of plots. The contributions of ,citizen scientists' are potentially useful if well managed. Biodiversity per se (across all kingdoms of life, and including the levels of the gene, population and community) should be monitored, especially key species interactions and processes. Forestcheck is an example of such a program which has been applied in forests in south-west Western Australia since 2001. In concert with measuring the direct impact of climate change on biodiversity and the indirect impact of factors that affect biodiversity (such as disease, invasive species, fire regime and habitat removal), there is a need for a proactive focus on creating, maintaining and monitoring resilience to climate change impacts in ecosystems. It is also necessary to monitor the effectiveness of management actions such as vegetation thinning, changes in fire regimes, species translocations and revegetation of farmland to link isolated protected areas in agricultural landscapes, remnant native vegetation in rangelands and extensive protected areas. A pluralist approach is recommended. This should include natural experiments, matched photographs where available, passive adaptive management, active adaptive management and traditional reductionist scientific investigation. The resultant synthesis of information from this range of sources is likely to be a predictive, robust and credible record of historical change. [source]