The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Anastasios Xepapadeas - One of the best experts on this subject based on the ideXlab platform.
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valuing biodiversity from an economic perspective a unified economic ecological and Genetic Approach
The American Economic Review, 2003Co-Authors: William A Brock, Anastasios XepapadeasAbstract:We develop a conceptual framework for valuing biodiversity from an economic perspective. We argue for a dynamic economic welfare measure of biodiversity that complements the literature on benefit-cost Approaches and Genetic distance/phylogenic tree Approaches. Using a unified model of optimal economic management of an ecosystem under ecological and Genetic constraints, we identify gains from management policies leading to a more diverse system, using the Bellman state valuation function of the problem. We show that a more diverse system could attain a higher value although the Genetic distance of the species in the more diverse system could be almost zero.
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valuing biodiversity from an economic perspective a unified economic ecological and Genetic Approach
2001Co-Authors: William A Brock, Anastasios XepapadeasAbstract:We develop a conceptual framework for valuing bioversity from an economic perspective. We consider bioversity important because of a number of characteristics or services that it provided of enhances. We attribute bioversity loss to economic activities related to decisions of private optimizing agents that ignore useful characteristics or services associated ecosystems. Using a unified model of economic management of an ecosystem under ecological and Genetic constrains, we compare the optimal value of the social optimization problem where positive externalities associated with bioversity are internalized, to that of a private optimization problem. We obtain an endogenous measure of the bioversity value and relate this measure to ecologically/biologically oriented bioversity metrics (special richness, Shannon or Simpson indices) that correspond to the equilibrium diversities of the social and private optimization problems.
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valuing biodiversity from an economic perspective a unified economic ecological and Genetic Approach
2001Co-Authors: William A Brock, Anastasios XepapadeasAbstract:We develop a conceptual framework for valuing biodiversity from an economic perspective. We consider biodiversity important because of a number of characteristics or services that it provides or enhances. We attribute biodiversity loss to economic activities related to decisions of private optimizing agents that ignore useful characteristics or services associated with diverse ecosystems. Using a unified model of economic management of an ecosystem under ecological and Genetic constraints, we compare the optimal value of the social optimization problem where positive externalities associated with biodiversity are internalized, to that of a private optimization problem. We obtain an endogenous measure of the biodiversity value and relate this measure to ecologically/biologically oriented biodiversity metrics (species richness, Shannon or Simpson indices) that correspond to the equilibrium diversities of the social and private optimization problems.
Ines Sanchezdonoso - One of the best experts on this subject based on the ideXlab platform.
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are farm reared quails for game restocking really common quails coturnix coturnix a Genetic Approach
PLOS ONE, 2012Co-Authors: Ines Sanchezdonoso, Carles Vila, Manel Puigcerver, Dalius Butkauskas, Jose Ramon Caballero De La Calle, Pablo Antonio Moralesrodriguez, Jose Domingo RodriguezteijeiroAbstract:The common quail (Coturnix coturnix) is a popular game species for which restocking with farm-reared individuals is a common practice. In some areas, the number of released quails greatly surpasses the number of wild breeding common quail. However, common quail are difficult to raise in captivity and this casts suspicion about a possible hybrid origin of the farmed individuals from crosses with domestic Japanese quail (C. japonica). In this study we used a panel of autosomal microsatellite markers to characterize the Genetic origin of quails reared for hunting purposes in game farms in Spain and of quails from an experimental game farm which was founded with hybrids that have been systematically backcrossed with wild common quails. The genotypes of these quail were compared to those of wild common quail and domestic strains of Japanese quail. Our results show that more than 85% of the game farm birds were not common quail but had domestic Japanese quail ancestry. In the experimental farm a larger proportion of individuals could not be clearly separated from pure common quails. We conclude that the majority of quail sold for restocking purposes were not common quail. Genetic monitoring of individuals raised for restocking is indispensable as the massive release of farm-reared hybrids could represent a severe threat for the long term survival of the native species.
Toyoaki Anai - One of the best experts on this subject based on the ideXlab platform.
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potential of a mutant based reverse Genetic Approach for functional genomics and molecular breeding in soybean
Breeding Science, 2012Co-Authors: Toyoaki AnaiAbstract:Mutant-based reverse Genetics offers a powerful way to create novel mutant alleles at a selected locus. This Approach makes it possible to directly identify plants that carry a specific modified gene from the nucleotide sequence data. Soybean [Glycine max (L.) Merr.] has a highly redundant paleopolyploid genome (approx. 1.1 Gb), which was completely sequenced in 2010. Using reverse Genetics to support functional genomics studies designed to predict gene function would accelerate post-genomics research in soybean. Furthermore, the novel mutant alleles created by this Approach would be useful Genetic resources for improving various traits in soybean. A reverse Genetic screening platform in soybean has been developed that combines more than 40,000 mutant lines with a high-throughput method, Targeting Local Lesions IN Genome (TILLING). In this review, the mutant-based reverse Genetic Approach based on this platform is described, and the likely evolution of this Approach in the near future.
William A Brock - One of the best experts on this subject based on the ideXlab platform.
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valuing biodiversity from an economic perspective a unified economic ecological and Genetic Approach
The American Economic Review, 2003Co-Authors: William A Brock, Anastasios XepapadeasAbstract:We develop a conceptual framework for valuing biodiversity from an economic perspective. We argue for a dynamic economic welfare measure of biodiversity that complements the literature on benefit-cost Approaches and Genetic distance/phylogenic tree Approaches. Using a unified model of optimal economic management of an ecosystem under ecological and Genetic constraints, we identify gains from management policies leading to a more diverse system, using the Bellman state valuation function of the problem. We show that a more diverse system could attain a higher value although the Genetic distance of the species in the more diverse system could be almost zero.
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valuing biodiversity from an economic perspective a unified economic ecological and Genetic Approach
2001Co-Authors: William A Brock, Anastasios XepapadeasAbstract:We develop a conceptual framework for valuing bioversity from an economic perspective. We consider bioversity important because of a number of characteristics or services that it provided of enhances. We attribute bioversity loss to economic activities related to decisions of private optimizing agents that ignore useful characteristics or services associated ecosystems. Using a unified model of economic management of an ecosystem under ecological and Genetic constrains, we compare the optimal value of the social optimization problem where positive externalities associated with bioversity are internalized, to that of a private optimization problem. We obtain an endogenous measure of the bioversity value and relate this measure to ecologically/biologically oriented bioversity metrics (special richness, Shannon or Simpson indices) that correspond to the equilibrium diversities of the social and private optimization problems.
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valuing biodiversity from an economic perspective a unified economic ecological and Genetic Approach
2001Co-Authors: William A Brock, Anastasios XepapadeasAbstract:We develop a conceptual framework for valuing biodiversity from an economic perspective. We consider biodiversity important because of a number of characteristics or services that it provides or enhances. We attribute biodiversity loss to economic activities related to decisions of private optimizing agents that ignore useful characteristics or services associated with diverse ecosystems. Using a unified model of economic management of an ecosystem under ecological and Genetic constraints, we compare the optimal value of the social optimization problem where positive externalities associated with biodiversity are internalized, to that of a private optimization problem. We obtain an endogenous measure of the biodiversity value and relate this measure to ecologically/biologically oriented biodiversity metrics (species richness, Shannon or Simpson indices) that correspond to the equilibrium diversities of the social and private optimization problems.
Jose Domingo Rodriguezteijeiro - One of the best experts on this subject based on the ideXlab platform.
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are farm reared quails for game restocking really common quails coturnix coturnix a Genetic Approach
PLOS ONE, 2012Co-Authors: Ines Sanchezdonoso, Carles Vila, Manel Puigcerver, Dalius Butkauskas, Jose Ramon Caballero De La Calle, Pablo Antonio Moralesrodriguez, Jose Domingo RodriguezteijeiroAbstract:The common quail (Coturnix coturnix) is a popular game species for which restocking with farm-reared individuals is a common practice. In some areas, the number of released quails greatly surpasses the number of wild breeding common quail. However, common quail are difficult to raise in captivity and this casts suspicion about a possible hybrid origin of the farmed individuals from crosses with domestic Japanese quail (C. japonica). In this study we used a panel of autosomal microsatellite markers to characterize the Genetic origin of quails reared for hunting purposes in game farms in Spain and of quails from an experimental game farm which was founded with hybrids that have been systematically backcrossed with wild common quails. The genotypes of these quail were compared to those of wild common quail and domestic strains of Japanese quail. Our results show that more than 85% of the game farm birds were not common quail but had domestic Japanese quail ancestry. In the experimental farm a larger proportion of individuals could not be clearly separated from pure common quails. We conclude that the majority of quail sold for restocking purposes were not common quail. Genetic monitoring of individuals raised for restocking is indispensable as the massive release of farm-reared hybrids could represent a severe threat for the long term survival of the native species.
