R. d'Arge’s research while affiliated with University of Wyoming and other places

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Publications (12)


Bacterial O6-methylguanine-DNA methyltransferase reduces N-methyl-N'-nitro-N-nitrosoguanidine induction of plasminogen activator in Mer- human glioblastoma A1235 cell line
  • Article

July 1998

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12 Reads

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3 Citations

Mutation Research/DNA Repair

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R. d'Arge

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[...]

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J. Soric



A method for valuing global ecosystem services
  • Article
  • Full-text available

February 1998

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444 Reads

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79 Citations

Ecological Economics

The goal of this paper is to provide an investigation of several approaches to valuing ecosystem services and to contribute additional techniques which may be used in evaluating ‘green’ GDP accounts. Our estimates focus on the ecosystem as a productive economic input, not a stock which is depreciated or depleted over time; as such, it differs with other concepts more frequently employed in green GDP accounting. Most of our results are derived from the analytical fiction that a single owner of the biosphere establishes a market for all ecological resources. This monopolist then appropriates all rents from the human population. The maximum amount the monopolist charges is first assumed to be world gross product less the global human subsistence level. In addition, we examine the excess rents available in factor markets using the assumption of weak complementarity between factor inputs and ecosystem services. We also provide more conservative estimates of the value of ecosystem services by investigating the sustainable price the monopolist could charge the global population and by exploring the effects of compensating wage differentials and a non-monopolist owner of the ecosystem.

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Figure 1 Supply and demand curves, showing the definitions of cost, net rent and consumer surplus for normal goods (a) and some essential ecosystem services (b). See text for further explanation.
Figure 2 Global map of the value of ecosystem services. See Supplementary Information and Table 2 for details.
The value of the world’s ecosystem services and natural capital. Nature

November 1996

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44,627 Reads

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3,774 Citations

Nature

The services of ecological systems and the natural capital stocks that produce them are critical to the functioning of the Earth's life-support system. They contribute to human welfare, both directly and indirectly, and therefore represent part of the total economic value of the planet. We have estimated the current economic value of 17 ecosystem services for 16 biomes, based on published studies and a few original calculations. For the entire biosphere, the value (most of which is outside the market) is estimated to be in the range of US1654trillion(1012)peryear,withanaverageofUS16–54 trillion (10 12) per year, with an average of US33 trillion per year. Because of the nature of the uncertainties, this must be considered a minimum estimate. Global gross national product total is around US$18 trillion per year.




Citations (9)


... Ecosystem services (ES) is a concept that has emerged to describe the ability of forests to provide direct and indirect benefits to society (in sensu De Groot, 1992;Costanza et al., 1997;Watson and Zakri, 2005;De Groot et al., 2010). Forest management can alter the quality and supply of forest ES. ...

Reference:

Assessing actor power in the trade-offs between ecosystem services affecting forest management – A case study from Central Slovakia
The Value of the World's Services and Natural Capital’
  • Citing Article
  • January 1998

Ecological Economics

... Notably, both RSa and KT cells also show high sensitivity to cell proliferation inhibition by human interferon-β (HuIFN-β) (3). Coordination between cellular sensitivity to UVC and HuIFN was observed in various human cell lines, but the mechanisms underlying the coordination remain unclear (4)(5)(6). However, cellular chaperone metabolism may be the key for clarifying these mechanisms. ...

Enhancement of XPG mRNA expression by human interferon- in Cockayne syndrome cells
  • Citing Article
  • July 1998

Mutation Research/DNA Repair

... A1235 cells, used in these experiments, do not have MGMT activity, and were shown to increase uPA activity after alkylation damage, like other mer-cells (defined as cells deficient in O 6 -methylguanine lesion repair) (Scudiero et al. 1984;Brdar 1986). In the same experimental model it was demonstrated that the increase in MGMT repair capacity decreased uPA induction upon alkylation (Loncarek and Soric 1998). It was found that several other types of DNA damage also increased uPA activity: exposure of A1235 cells to double-strand break inducer etoposide, as well as UV treatment of Xeroderma pigmentosum fibroblasts (Miskin and Ben-Ishai 1981;Matulic and Brdar 2002). ...

Bacterial O6-methylguanine-DNA methyltransferase reduces N-methyl-N'-nitro-N-nitrosoguanidine induction of plasminogen activator in Mer- human glioblastoma A1235 cell line
  • Citing Article
  • July 1998

Mutation Research/DNA Repair

... Once a large wildfire has been defined, the challenge is to quantify the effects of the fire on the disruption of forest ecosystem functions. The assignment of "value to ecology" is a cross-disciplinary and controversial concept, being differently interpreted by ecologists, natural scientists, and economists [12][13][14][15]. Despite this, the study of post-fire ecosystem conditions and the related disruptions in ecological processes represents the first step in translating the loss of biophysical supply service into the loss of benefits to people, thereby assessing the associated value of the ecosystem service (ES) benefits in areas affected by fire [11]. ...

SPECIAL SECTION: FORUM ON VALUATION OF ECOSYSTEM SERVICES The value of ecosystem services: putting the issues in perspective
  • Citing Article

... Responsibility is inherent in the Golden Rule (do unto others as you would have them do unto you-were you in their position) (Hare 1991), a foundation for a wide array of moral frameworks. All people rely on and benefit from ecosystem services, albeit some much more directly than others (Bawa & Gadgil 1997). Most of us would not want these services degraded, as routinely occurs every day via pressures associated with human consumption of various goods and services, including extraction, production, transportation, etc. (MA 2005). ...

4. Bawa, Kamaljit S. and Gadgil, Madhav. Ecosystem Services in Subsistence Economies and Conservation of Biodiversity in Nature's services: Societal dependence on natural ecosystems. 1997

... While some studies focus on factors affecting the adoption of these practices, emphasizing their significance in mitigating soil and water problems, alongside with increasing their efficient use (Kassie et al., 2013;Teferra et al.,. 2019), others attempt to quantify economic values for ecosystems both at the micro (Sullivan, 1999) and at the macro levels (Alexander et al., 1998). ...

A method for valuing global ecosystem services

Ecological Economics

... However, it is also estimated that kelp forests take up 4.91 megatons of carbon from the atmosphere/ year, highlighting their potential as blue carbon systems for climate change mitigation (James et al. 2024). Regarding this perspective, considering goods and services from mangroves and salt marshes (Friess et al. 2020), Costanza et al. (1997) estimated the global value of recreational services (which was partially calculated from usage fees) to be US$574 billion/year (US$193,843/ha/ year). Involving society, mainly the fractions more vulnerable, actions of conservation and restoration of these ecosystems, besides being ecologically regenerative, can represent an important driver in promoting socioenvironmental justice through the payment of environmental services. ...

The value of the world’s ecosystem services and natural capital. Nature

Nature

... Los Servicios Ecosistémicos (SE), son los benef icios que recibe la sociedad por el buen funcionamiento de los ecosistemas (Costanza et al. 2017). La misión fundamental de la ciencia de los SE es valorar la contribución, muchas veces invisible, que hace la naturaleza al bienestar humano, y sin la cual, ninguna de nuestras acciones humanas y económicas sería posible (Costanza et al. 1998;Gómez-Baggethun et al. 2010). ...

The value of ecosystem services: putting the issue in perspective.

... Debate surrounded the paper's methodology, the accuracy of the final calculated value ($33 trillion USD in 1997), and ultimately the ethics of valuating the biosphere (Norgaard and Bode, 1998;Serafy, 1998). The authors and other proponents of economic valuation of ES readily acknowledged the paper's shortcomings, including assumptions of unrealistic homogeneity across biomes and large uncertainties in the quantitative values used, but maintained that the paper represented a much-needed preliminary effort at valuating the environment (Costanza et al., 1998). Certainly, the study succeeded in opening avenues of study within the context of ES and strengthening both positive and negative interest in ES. ...

The value of ecosystem services: Putting the issues in perspective
  • Citing Article
  • February 1998

Ecological Economics