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Resultados de la búsqueda

Mostrando ítems 1 a 9 de 13.
  1. Library Resource
    Artículos de revistas y libros
    Diciembre, 2016
    Australia

    CONTEXT: Tropical forest regeneration is increasingly prominent as agro-pastoral lands are abandoned. Regeneration is characterised as favouring ‘marginal’ lands; however, observations of its drivers are often coarse or simple, leaving doubt as to spatial dynamics and causation. OBJECTIVES: We quantified the spatial dynamics of forest regeneration relative to marginality and remnant forest cover in a 3000 km² pastoral region in northern tropical Australia.

  2. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015
    Australia

    Minimising the spread and impact of alien plants is a crucial component of land management for biodiversity conservation. Alien plant management typically focuses on either controlling selected alien species (‘species-led’), or on minimizing invasions within selected biodiversity or cultural assets (‘asset-led’). Here, we compare and combine species- and asset-led approaches to prioritise alien plant management activities in the world’s largest Mediterranean-climate woodland, located in south-western Australia.

  3. Library Resource
    Artículos de revistas y libros
    Diciembre, 2015
    Australia

    CONTEXT: The identification of habitat structures with biologically meaningful links to habitat quality has enabled an increased understanding of wildlife distributions in fragmented landscapes. However, knowledge is lacking of where these structures occur in the landscape. OBJECTIVES: For a broad-scale agricultural landscape, we investigated how the occurrence and abundance of wildlife habitat structures is related to abiotic conditions and land management practices, and whether this differed between old growth and regrowth woodland.

  4. Library Resource
    Artículos de revistas y libros
    Diciembre, 2010
    Australia

    Unusually intense wildfires in south east Australia in early February 2009 led to the deaths of 173 people in Victoria and massive loss of property, with several towns essentially obliterated. More than 450,000 ha were burned. The severity of those fires has led to calls for massively increased planned burning for fuel reduction, with a Government Enquiry (a Royal Commission) currently considering all aspects of the fires and future policy, to help safeguard life and property.

  5. Library Resource
    Artículos de revistas y libros
    Diciembre, 2007
    Australia

    Forest policy decisions are often a source of debate, conflict, and tension in many countries. The debate over forest land-use decisions often hinges on disagreements about societal values related to forest resource use. Disagreements on social value positions are fought out repeatedly at local, regional, national, and international levels at an enormous social cost. Forest policy problems have some inherent characteristics that make them more difficult to deal with. On the one hand, forest policy decisions involve uncertainty, long time scales, and complex natural systems and processes.

  6. Library Resource
    Artículos de revistas y libros
    Diciembre, 2006
    Australia

    Should north Australia's extensive populations of feral animals be eradicated for conservation, or exploited as a rare opportunity for Indigenous enterprise in remote regions? We examine options for a herd of banteng, a cattle species endangered in its native Asian range but abundant in Garig Gunak Barlu National Park, an Aboriginal land managed jointly by traditional owners and a conservation agency in the Northern Territory of Australia.

  7. Library Resource
    Artículos de revistas y libros
    Diciembre, 2010
    Australia

    Extensive research has been conducted globally into conceptual frameworks for ecosystem services, the most notable being the Millennium Ecosystem Assessment (Millennium ecosystem assessment: ecosystems and human well-being; a framework for assessment. World Resources Institute, Washington, DC, pp 51, 53-55, 2005).

  8. Library Resource
    Artículos de revistas y libros
    Diciembre, 2008
    Australia

    Degradation of farmland caused by salinisation is a major environmental issue in Australia. To combat salinisation a community-based approach has been adopted. This paper reviews the nature and effectiveness of this approach, describing its rationale, strengths and weaknesses. The community-based approach is shown to have been highly successful in raising awareness and providing education about the problem of dryland salinity in Australia, and has encouraged group participation in managing the problem.

  9. Library Resource
    Artículos de revistas y libros
    Diciembre, 2008
    Australia

    We present a new mathematical programming framework that is adaptable to a variety of spatially explicit landscape problems in environmental investment, conservation, and land-use planning, transport planning, and agriculture. As part of capturing spatial interdependencies, the framework considers decision variables at two levels, finely spaced grid cells and landholdings. We applied the framework to an environmental investment problem using objective functions representing biodiversity and carbon sequestration.

  10. Library Resource
    Artículos de revistas y libros
    Diciembre, 2012
    Australia

    Traditional regression techniques such as ordinary least squares (OLS) are often unable to accurately model spatially varying data and may ignore or hide local variations in model coefficients. A relatively new technique, geographically weighted regression (GWR) has been shown to greatly improve model performance compared to OLS in terms of higher R 2 and lower corrected Akaike information criterion (AICC).

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