نتایج جستجو برای: land conservation

تعداد نتایج: 212216  

2009
Florian HARTIG Martin DRECHSLER

Market based instruments such as payments, auctions or tradable permits have been proposed as exible and cost-e ective instruments for biodiversity conservation on private lands. Trading the service of conservation requires to de ne a metric that determines to which extent a conserved site adds to the regional conservation objective. Yet, while markets for conservation are widely discussed and ...

2011
George Holmes

Despite a massive worldwide crisis of biodiversity loss, there have been considerable successes in global conservation.1 An ever-increasing amount of land is contained in protected areas, which now cover over 12 percent of the world’s land surface area, and over 25 percent in some countries.2 International conservation NGOs are growing in size and inouence, and global political structures give ...

2008
Florian Hartig Martin Drechsler

Market-based instruments such as payments, auctions or tradable permits have been proposed as exible and coste ective instruments for biodiversity conservation on private lands. Trading the service of conservation requires one to de ne a metric that determines the extent to which a conserved site adds to the regional conservation objective. Yet, while markets for conservation are widely discuss...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2010
Johan A Oldekop Anthony J Bebbington Dan Brockington Richard F Preziosi

The lack of concrete instances in which conservation and development have been successfully merged has strengthened arguments for strict exclusionist conservation policies. Research has focused more on social cooperation and conflict of different management regimes and less on how these factors actually affect the natural environments they seek to conserve. Consequently, it is still unknown whi...

2015
JONATHAN I. BARNES JAMES MACGREGOR

— Five community wildlife conservation and utilization initiatives, or conservancies, on communal land in Namibia were appraised to determine economic and financial worth. Conservancies are economically efficient and able to contribute positively to national income and the development process. They also provide a channel for the capture of international donor grants (wildlife non-use values) as...

2014
Jacqueline Loos Ine Dorresteijn Jan Hanspach Pascal Fust László Rakosy Joern Fischer

European farmland biodiversity is declining due to land use changes towards agricultural intensification or abandonment. Some Eastern European farming systems have sustained traditional forms of use, resulting in high levels of biodiversity. However, global markets and international policies now imply rapid and major changes to these systems. To effectively protect farmland biodiversity, unders...

2010
Gary W. Luck Lisa Smallbone Simon McDonald Deanna Duffy

Aim To test six hypotheses that could explain or mediate the positive correlation between human population density (HPD) and bird species richness while controlling for biased sampling effort. These hypotheses were labelled as follows: productivity (net primary productivity, NPP); inherent heterogeneity (diversity of vegetation types); anthropogenic heterogeneity (diversity of land uses); conse...

2013
Rebecca Moore

We use a stated choice experiment to estimate household willingness-to-pay for a program providing incentives to private forest land owners in the Red Hills region of southwest Georgia and northwest Florida. The estimated values of various program attributes inform a landscape analysis that identifies high-priority private forest land that could be targeted for conservation incentives. Househol...

2015
Anton Sizo Bram Noble Marc A. Rosen

This paper presents a scenario-based approach to strategic environmental assessment (SEA) for wetland trend analysis and land use and land cover (LUC) modeling in an urban environment. The application is focused on the Saskatoon urban environment, a rapidly growing urban municipality in Canada’s prairie pothole region. Alternative future LUC was simulated using remote sensing data and city spat...

2010
Xingli Giam Corey J.A. Bradshaw Hugh T.W. Tan Navjot S. Sodhi

Rapid land-use and climate changes are projected to cause broad-scale global land-cover transformation that will increase species extinction rates. We assessed the exposure of globally threatened plant biodiversity to future habitat loss over the first half of this century by testing country-level associations between threatened plant species richness and future habitat loss owing to land-use a...

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