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Registros recuperados: 25 | |
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Wagner, Sven; Chair of Silviculture, TU-Dresden; wagner@forst.tu-dresden.de; Nocentini, Susanna; Department of Agricultural, Food and Forestry Systems, University of Florence; susanna.nocentini@unifi.it; Huth, Franka; Chair of Silviculture, TU-Dresden; mario@forst.tu-dresden.de; Hoogstra-Klein, Marjanke; Forest and Nature Conservation Policy Group, Wageningen University; Marjanke.Hoogstra@wur.nl. |
The issue of rapid change in environmental conditions under which ecosystem processes and human interventions will take place in the future is relatively new to forestry, whereas the provision of ecosystem services, e.g., timber or fresh water, is at the very heart of the original concept of forest management. Forest managers have developed ambitious deterministic approaches to provide the services demanded, and thus the use of deterministic approaches for adapting to climate change seem to be a logical continuation. However, as uncertainty about the intensity of climate change is high, forest managers need to answer this uncertainty conceptually. One may envision an indeterministic approach to cope with this uncertainty; but how the services will be... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Climate change; Ecological resilience; Ecosystem services; Forest management strategies; Flexibility; Forest structure; Uncertainty. |
Ano: 2014 |
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Johnson, Barry L; USGS, Upper Midwest Enviromental Sciences Center; barry_johnson@usgs.gov. |
In making resource management decisions, agencies use a variety of approaches that involve different levels of political concern, historical precedence, data analyses, and evaluation. Traditional decision-making approaches have often failed to achieve objectives for complex problems in large systems, such as the Everglades or the Colorado River. I contend that adaptive management is the best approach available to agencies for addressing this type of complex problem, although its success has been limited thus far. Traditional decision-making approaches have been fairly successful at addressing relatively straightforward problems in small, replicated systems, such as management of trout in small streams or pulp production in forests. However, this success... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive management; Decision making; Ecological resilience; Ecosystem management; Flexibility; Replicated systems; Resource management agencies; Stakeholders.. |
Ano: 1999 |
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Rouze, Heloise; Lecellier, Gael J.; Saulnier, Denis; Planes, Serge; Gueguen, Yannick; Wirshing, Herman H.; Berteaux-lecellier, Veronique. |
The adaptative bleaching hypothesis (ABH) states that, depending on the symbiotic flexibility of coral hosts (i.e., the ability of corals to “switch” or “shuffle” their algal symbionts), coral bleaching can lead to a change in the composition of their associated Symbiodinium community and, thus, contribute to the coral’s overall survival. In order to determine the flexibility of corals, molecular tools are required to provide accurate species delineations and to detect low levels of coral-associated Symbiodinium. Here, we used highly sensitive quantitative (real-time) PCR (qPCR) technology to analyse five common coral species from Moorea (French Polynesia), previously screened using only traditional molecular methods, to assess the presence of... |
Tipo: Text |
Palavras-chave: Corals; French polynesia; Clade B; Symbiodinium; QPCR; Flexibility; Generalist; Faithful clade. |
Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00365/47652/47683.pdf |
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Han, Zhi-cheng; Li, Xiao-xiang; Li, Zhi-xian. |
According to the household consumption data of urban residents in Guangxi Statistical Yearbook in the year 2009, the ELES (Extended Linear Expenditure System) is used to analyze the consumption structure, the propensity to consume, and the consumer flexibility of urban residents in Guangxi Zhuang Autonomous Region of China in the year 2008. Result shows that urban residents in Guangxi has relatively low propensity to consume. And their consumption, especially the middle and low-income families, is mostly concentrated in food, cloth, lodging and other basic necessities of life, which account for more than a half of their income. Based on this, corresponding suggestions are put forward to enlarge the consumption demand of urban residents in Guangxi, such as... |
Tipo: Journal Article |
Palavras-chave: Consumption structure; ELES Model; Propensity to consume; Flexibility; China; Agribusiness. |
Ano: 2011 |
URL: http://purl.umn.edu/108404 |
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Renner, Swetlana; Pieniadz, Agata. |
Agricultural enterprises in transition countries face dynamic changes in the prevailing economic, legal and political conditions. The success of an enterprise depends on its ability to adjust its farming system in response to these changing conditions. To meet this challenge, flexible and adaptable production technology is required. Thus, the farm’s choice of technology is an important decision which determines its future performance. Although the concept of a firm’s flexibility is widely analysed in microeconomics literature, there is no comprehensive framework to facilitate the analysis of family farms’ flexibility, especially considering market imperfections and other obstacles associated with the transition process. In this paper we formulate the... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Flexibility; Output price risk; Family farms; Farm Management. |
Ano: 2008 |
URL: http://purl.umn.edu/44126 |
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BurnSilver, Shauna; Mwangi, Esther. |
This paper leverages datasets and results from two separate studies carried out across eight Kajiado group ranches and offers a unique opportunity to look at emergent pre- and post-subdivision trends from an interdisciplinary framework that combines ecological, political, and human-ecological research perspectives. It provides insights into the following issues: the loss of flexibility and mobility for Maasai herders’ dues to subdivision, the nature of collective activities that individuals pursue after subdivision, and the emergence of pasture sharing arrangements. NDVI profiles show that forage options for individual herders decrease dramatically under privatization, but rebound somewhat when parcels are shared between households located adjacent to each... |
Tipo: Journal Article |
Palavras-chave: Kajiado; Mobility; Flexibility; Pastoralism; Collective Action; Subdivision; Group Ranches; Livestock Production/Industries. |
Ano: 2007 |
URL: http://purl.umn.edu/47825 |
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Engel, Eduardo M.R.A.; Fischer, Ronald; Galetovic, Alexander. |
This paper reviews the Latin American experience with highway privatization during the last decade. Based on evidence from Argentina, Colombia and Chile, we find that private financing of new highways freed up fewer public resources than expected because public funds were often diverted to bail out franchise holders. Furthermore, many of the standard benefits of privatization did not materialize because of pervasive contract renegotiations. We argue that the disappointing performance of highway privatization in Latin America was due to two fundamental design flaws. First, countries followed a privatize now, regulate later approach. Second, most concessions were awarded as a fixed-term franchise, thereby creating a demand for guarantees and contract... |
Tipo: Working or Discussion Paper |
Palavras-chave: Build-operate-and-transfer (BOT); Concessions; Cost-of-funds; Flexibility; Franchising; Government subsidies; Present-value-of-revenue (PVR); Regulation; Renegotiation; Public Economics; H21; L51; L91. |
Ano: 2003 |
URL: http://purl.umn.edu/28456 |
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Michele, Moretto; Gianpaolo, Rossini. |
The main aim of the paper is to highlight the relation between flexibility and vertical integration. To this purpose, we go through the selection of the optimal degree of vertical disintegration of a flexible firm which operates in a dynamic uncertain environment. The enterprise we model enjoys flexibility since it can switch from a certain amount of disintegration to vertical integration and viceversa. This means that the firm never loses vertical control, i.e., the ability to produce all inputs even when it buys them in the market. This sort of flexibility makes for results which are somehow contrary to the Industrial Organization recent literature and closer to the Operations Research results. In this sense we provide a bridge between the two approaches... |
Tipo: Working or Discussion Paper |
Palavras-chave: Vertical Integration; Outsourcing; Entry; Flexibility; L24; G 31; C61. |
Ano: 2008 |
URL: http://purl.umn.edu/36759 |
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Buysse, Jeroen; Van der Straeten, Bart; Claeys, Dakerlia; Lauwers, Ludwig H.; Marchand, Fleur L.; Van Huylenbroeck, Guido. |
To explain over- and underuse of available quota, Buysse et al. (2007) have integrated the shadow cost of the quota constraint in a quota flexibility function in a positive mathematical programming model. This method and central hypothesis, formulated and tested for the case of Belgian sugar beet farms, is in current paper extended and confirmed for the cases of Flemish dairy quota and manure emission rights. Despite the different organisation, objectives and implementations of the diverse quota systems, the results are similar. A higher utilisation of quota is significantly driven by the quota rent, but farm characteristics are also important and the effect declines with increasing quota rent. Regardless the quota, the dairy quota flexibility behaviour of... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Quota; Flexibility; Positive Mathematical Programming; Farm model; Common Agricultural Policy; Agricultural and Food Policy; Demand and Price Analysis; Research Methods/ Statistical Methods. |
Ano: 2008 |
URL: http://purl.umn.edu/6640 |
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Registros recuperados: 25 | |
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