نتایج جستجو برای: conservation value

تعداد نتایج: 827310  

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2010
Sonia Akter R Quentin Grafton

The nonuse (or passive) value of nature is important but time-consuming and costly to quantify with direct surveys. In the absence of estimates of these values, there will likely be less investment in conservation actions that generate substantial nonuse benefits, such as conservation of native species. To help overcome decisions about the allocation of conservation dollars that reflect the lac...

Asghar Mohammadmoradi Gholamreza Japalaghi Hojjatollah Abdi Ardekani,

Any monument that is deemed competent for conservation and restoration, is bringing the values of their creation time and then. Thus with any work which is conserved and restored, in fact, the culture and civilization is maintained. Because of the intrinsic link between “history” and “conservation”, it is necessary to reflect on related factors to the restoration, and the importance and necessi...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2008
Matthew A Bowker Mark E Miller Jayne Belnap Thomas D Sisk Nancy C Johnson

Conservation prioritization usually focuses on conservation of rare species or biodiversity, rather than ecological processes. This is partially due to a lack of informative indicators of ecosystem function. Biological soil crusts (BSCs) trap and retain soil and water resources in arid ecosystems and function as major carbon and nitrogen fixers; thus, they may be informative indicators of ecosy...

2013
Kent Kovacs Stephen Polasky Erik Nelson Bonnie L. Keeler Derric Pennington Andrew J. Plantinga Steven J. Taff

We evaluate the return on investment (ROI) from public land conservation in the state of Minnesota, USA. We use a spatially-explicit modeling tool, the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST), to estimate how changes in land use and land cover (LULC), including public land acquisitions for conservation, influence the joint provision and value of multiple ecosystem serv...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2017
Michael J Manfredo Jeremy T Bruskotter Tara L Teel David Fulton Shalom H Schwartz Robert Arlinghaus Shigehiro Oishi Ayse K Uskul Kent Redford Shinobu Kitayama Leeann Sullivan

The hope for creating widespread change in social values has endured among conservation professionals since early calls by Aldo Leopold for a "land ethic." However, there has been little serious attention in conservation to the fields of investigation that address values, how they are formed, and how they change. We introduce a social-ecological systems conceptual approach in which values are s...

2012
Sandeep Sharma Trishna Dutta Jesús E Maldonado Thomas C Wood Hemendra Singh Panwar John Seidensticker

We investigated the spatial genetic structure of the tiger meta-population in the Satpura-Maikal landscape of central India using population- and individual-based genetic clustering methods on multilocus genotypic data from 273 individuals. The Satpura-Maikal landscape is classified as a global-priority Tiger Conservation Landscape (TCL) due to its potential for providing sufficient habitat tha...

2009
X. Zhou

Soil erosion from agricultural lands can be reduced by adoption of conservation management practices. The objectives of this study were to investigate the effectiveness and cost-benefit of conservation management practices on sediment reduction under a corn–soybean rotation. The experimental site was 6.4 ha (15.8 ac) and located within the Four Mile Creek watershed in eastern Iowa. Management p...

Journal: :Proceedings. Biological sciences 2008
Tien Ming Lee Walter Jetz

Global biodiversity is under significant threat from the combined effects of human-induced climate and land-use change. Covering 12% of the Earth's terrestrial surface, protected areas are crucial for conserving biodiversity and supporting ecological processes beneficial to human well-being, but their selection and design are usually uninformed about future global change. Here, we quantify the ...

2016
Andrew Whitworth Roger Downie Rudolf von May Jaime Villacampa Ross MacLeod

The structure and underlying functions of the majority of the world’s tropical forests have been disrupted by human impacts, but the potential biodiversity and conservation value of regenerating forests is still debated. One review suggests that on average, regenerating tropical forests hold 57% (±2.6%) of primary forest species richness, raising doubt about a viable second chance to conserve b...

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