Abstract: Although ecological restoration is widely used to combat environmental degradation, very few studies have evaluated the cost-effectiveness of this approach. We examine the potential impact of forest restoration on the value of multiple ecosystem services across four dryland areas in Latin America, by estimating the net value of ecosystem service benefits under different reforestation scenarios. The values of selected ecosystem services were mapped under each scenario, supported by the use of a spatially explicit model of forest dynamics. We explored the economic potential of a change in land use from livestock grazing to restored native forest using different discount rates and performed a cost–benefit analysis of three restoration scenarios. Results show that passive restoration is cost-effective for all study areas on the basis of the services analyzed, whereas the benefits from active restoration are generally outweighed by the relatively high costs involved. These findings were found to be relatively insensitive to discount rate but were sensitive to the market value of carbon. Substantial variation in values was recorded between study areas, demonstrating that ecosystem service values are strongly context specific. However, spatial analysis enabled localized areas of net benefits to be identified, indicating the value of this approach for identifying the relative costs and benefits of restoration interventions across a landscape.
The primacy of the metaphoric process in the literary schools of Romanticism and symbolism has been repeatedly acknowledged, but it is still insufficiently realized that it is the predominance of metonymy which underlies and actually predetermines the so-called 'realistic' trend, which belongs to an intermediary stage between the decline of Romanticism and the rise of symbolism and is opposed to both. Following the path of contiguous relationships, the realistic author metonymically digresses from the plot to the atmosphere and from the characters to the setting in space and time. He is fond of synecdochic details. In the scene of Anna Karenina 's suicide Tolstoy's artistic attention is focused on the heroine's handbag; and in War and Peace the synecdoches "hair on the upper lip" or "bare shoulders" are used by the same writer to stand for the female characters to whom these features belong. 
A gene is the fundamental, physical, and functional unit of heredity. It is because a gene is comprised of nucleotides (on a specific site on a chromosome ) that is responsible for the physical and heritable characteristics or phenotype of an organism . It therefore specifies the structure of a protein , and an RNA molecule . The genes make up the sequences of DNA (genotypes). The genotypes, together with the other factors (. environmental factors), determine the phenotypic trait of an organism. These changes in the genes drive evolution and natural selection.