نتایج جستجو برای: term conservation

تعداد نتایج: 676103  

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2007
Sarah M Durant Sultana Bashir Thomas Maddox M Karen Laurenson

Although detailed, long-term scientific studies provide potentially crucial information for conservation, they are rare. Moreover, there is often a disjunction between scientists and managers that can affect whether scientific results are applied to help solve conservation problems. Long-term studies can promote increased communication between scientists and managers and hence offer an opportun...

2005
G. J. Gounaris

This talk consists of two parts. In the first, the present experimental bounds on the anomalous couplings of the gauge bosons, based mainly on the LEP and Tevatron experiments, are reviewed. In the second part, the theorem of helicity conservation (HC) is presented, which should be valid in either the Standard Model (SM) or MSSM, for any two-body process at high energies and fixed angles. The e...

2016
JEFFREY S. SCROGGS

The size of the shock-layer governed by a conservation law is studied. The conservation law is a parabolic reaction-convection-diffusion equation with a small parameter multiplying the diffusion term and convex flux. Rigorous upper and lower bounding functions for the solution of the conservation law are established based on maximum-principle arguments. The bounding functions demonstrate that t...

2017
Débora de Oliveira Renato Paiva Débora de Oliveira Prudente

Citation: Prudente DO, Paiva R (2017) Plant Cryopreservation: Biochemical Aspects. J Cell Dev Biol Vol.1 No.1:1 In-vitro conservation consists in the maintenance of living biological material under aseptic conditions and can be carried out in the medium or long term [1,2]. In medium-term conservation, it is possible to highlight the slow-growing technique, in which propagules are kept at reduce...

2002
G. B. Triplett

In 1987, the United States Department of Agriculture (USDA-ARS) National Sedimentation Laboratory, in cooper­ ation with the Mississippi Agricultural and Forestry Experi­ ment Station (MAFES) and the Natural Resources Conservation Service (NRCS), initiated an interdisciplinary research project to develop profitable and environmentally sustainable conservation production systems for silty upland...

2001
Berhanu Gebremedhin Scott M. Swinton

A double hurdle statistical analysis of 250 farms in the Tigray region of Ethiopia reveals different causal factors for soil conservation adoption versus intensity of use. Farmers’ reasons for adopting soil conservation measures vary sharply between stone terraces and soil bunds. Long-term investments in stone terraces were associated with secure land tenure, labour availability, proximity to t...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2007
Katherine J Willis Miguel B Araújo Keith D Bennett Blanca Figueroa-Rangel Cynthia A Froyd Norman Myers

This paper evaluates how long-term records could and should be utilized in conservation policy and practice. Traditionally, there has been an extremely limited use of long-term ecological records (greater than 50 years) in biodiversity conservation. There are a number of reasons why such records tend to be discounted, including a perception of poor scale of resolution in both time and space, an...

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...

2016
Helen Yap Pedro Fidelman Rebecca Weeks Robert L. Pressey Joanne R. Wilson Jamaluddin Jompa

Systematic conservation planning increasingly underpins the conservation and management of marine and coastal ecosystems worldwide. Amongst other benefits, conservation planning provides transparency in decision-making, efficiency in the use of limited resources, the ability to minimise conflict between diverse objectives, and to guide strategic expansion of local actions to maximise their cumu...

2014
Helen Yap Pedro Fidelman Rebecca Weeks Robert L. Pressey Joanne R. Wilson Jamaluddin Jompa

Systematic conservation planning increasingly underpins the conservation and management of marine and coastal ecosystems worldwide. Amongst other benefits, conservation planning provides transparency in decision-making, efficiency in the use of limited resources, the ability to minimise conflict between diverse objectives, and to guide strategic expansion of local actions to maximise their cumu...

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