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Registros recuperados: 43
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A agricultura familiar em Portugal: rupturas e continuidades Rev. Econ. Sociol. Rural
Carmo,Renato Miguel do.
Em Portugal, as ciências sociais têm estudado a agricultura familiar a partir de um modelo de interpretação dualista que acentua as diferenças inter-regionais, marginalizando, até certo ponto, o significado sociológico de algumas continuidades que se estabeleciam (e se estabelecem) entre as zonas do Norte e do Sul ou entre o Litoral e o Interior. O presente estudo pretende, assim, construir uma perspectiva diferente sobre as modalidades de agricultura familiar em Portugal, procurando identificar, num primeiro momento, uma série de proximidades sociológicas entre os diferentes modos de organização (tradicionais e modernos) das famílias agrícolas e, consequentemente, traçar os eixos para um modelo mais complexo na análise dessas mesmas modalidades.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rural; Pluriactividade; Agricultura familiar; Portugal.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032010000100001
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A Multi-Criteria Approach for Irrigation Water Management AgEcon
Saraiva, Joao Paulo; Pinheiro, Antonio Cipriano.
The major implications that the European Union (EU) Water Framework Directive (WFD) may have in irrigated agriculture were analysed using alternative water policy measures. The consequences of policy change were evaluated in a case study (Baixo Alentejo, Portugal), using a Multi-Criteria Decision Making (MCDM) model that simulates farmers’ preferred behaviour. The study compares the effects of water pricing (volumetric and flat tariffs) and consumption quotas, in farmer’s income, water agency revenues, agricultural employment and water demand for irrigation. Model results indicate that the adjustments in farmer’s responses are dependent on the policy strategy enforced and on the policy level.
Tipo: Journal Article Palavras-chave: Water Framework Directive; Flat Pricing; Volumetric Pricing; Multi- Objective Programming; Water Management; Portugal.
Ano: 2007 URL: http://purl.umn.edu/42143
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A new species of Torymus Dalman, 1820 (Hymenoptera: Torymidae), with additions and corrections to the revision of the European species Naturalis
Gijswijt, M.J..
Torymus interruptus spec. nov. from southern Portugal is described. A list of additions and corrections to the revision to the European species (Graham & Gijswijt, 1998) is added. The form of Torymus tipulariarum (Zetterstedt, 1838) and the “species indet.” as mentioned in the key to females, are synonymized with typical T. tipulariarum and the species is redescribed with the use of annotations by the late M. de Vere Graham.
Tipo: Article / Letter to the editor Palavras-chave: Chalcidoidea; Torymidae; Torymus; New species; Portugal; 42.75.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/216028
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A participação do Piigs no mercado lácteo. Infoteca-e
GAMA, D. A.; SIQUEIRA, K. B..
Tipo: Artigo de periódico Palavras-chave: Irlanda; Itália; Grécia; Espanha; Leite; Produto Derivado do Leite; Mercado; Produtividade; Portugal.
Ano: 2011 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/921775
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Assigning dates and identifying areas affected by fires in Portugal based on MODIS data Anais da ABC (AABC)
PANISSET,JESSICA; DACAMARA,CARLOS C.; LIBONATI,RENATA; PERES,LEONARDO F.; CALADO,TERESA J.; BARROS,ANA.
ABSTRACT An automated procedure is here presented that allows identifying and dating burned areas in Portugal using values of daily reflectance from near-infrared and middle-infrared bands, as obtained from the MODIS instrument. The algorithm detects persistent changes in monthly composites of the so-called (V,W) Burn-Sensitive Index and the day of maximum change in daily time series of W is in turn identified as the day of the burning event. The procedure is tested for 2005, the second worst fire season ever recorded in Portugal. Comparison between the obtained burned area map and the reference derived from Landsat imagery resulted in a Proportion Correct of 95.6%. Despite being applied only to the months of August and September, the algorithm is able to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Burned area; MODIS; Portugal; Remote sensing.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401487
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Climate adaptation, transitions, and socially innovative action-research approaches Ecology and Society
Alves, Filipe M; Center for Ecology, Evolution and Environmental Changes (CE3C), University of Lisbon; fmalves@fc.ul.pt; Truninger, Monica; Institute of Social Sciences, University of Lisbon; monica.truninger@ics.ulisboa.pt; Penha-Lopes, Gil; Center for Ecology, Evolution and Environmental Changes (CE3C), University of Lisbon; gppenha-lopes@fc.ul.pt.
Climate change may be a game-changer for scientific research by promoting a science that is grounded in linking the production of knowledge and societal action in a transition toward more sustainable development pathways. Here, we discuss participatory action-research (PAR) as a way of thinking and leading investigations that may promote incremental and transformative changes in the context of climate change adaptation research. Our exploration is addressed in the Portuguese context, where PAR and sustainable transition studies are still marginal, and adaptation processes are a recent topic on political agendas. We describe the characteristics of PAR and use two studies of adaptation to illustrate how research and practice co-evolve through interactive...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptation; Participatory action-research; Portugal; Transitions.
Ano: 2016
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Comparing the Productive Efficiency of Cooperatives and Private Enterprises: The Portuguese Wine Industry as a Case Study AgEcon
Barros, Carlos Pestana; Santos, J.C. Gomes.
This paper compares the efficiency of cooperatives and private enterprises in the Portuguese wine industry, employing data envelopment analysis (DEA). The use of DEA for the analysis of comparative efficiency within a sector is a key tool in evaluating organizational competitiveness. Competitiveness should be based on benchmarking the different types of organizations that comprise the viniculture sector. We conclude that Portuguese wine cooperatives, on average, are more efficient than their private counterparts. Economic implications arising from the study are discussed.
Tipo: Journal Article Palavras-chave: Cooperatives; Private enterprises; Technical efficiency; DEA; Wine industry; Portugal; Agribusiness.
Ano: 2007 URL: http://purl.umn.edu/58683
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Composition en cires, triglycérides, protéines et sucres du mésozooplancton ArchiMer
Alayse-danet, Anne-marie; Daniel, Jean-yves; Le Coz, Jean-rene.
Analyses effectuées sur le zooplancton total des pêches verticales au WP2 et sur des animaux triés à partir des pêches horizontales (Campagne RCA sur les côtes Atlantiques du Portugal). On ne signale pas de différence significative entre la composition biochimique des populations du large et de la côte
Tipo: Text Palavras-chave: Zooplancton; Milieu marin; Composition chimique; Glucide; Cire animale; Triglycéride; Protéine; Océan Atlantique Nord; Upwelling; Méiofaune; Portugal; France; Zone côtière; Zooplankton; Marine environment; Chemical composition; Carbohydrate; Animal wax; Triglyceride; Proteins; North Atlantic; Upwelling; Meiofauna; Portugal; France; Coastal zone.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/00189/29976/28429.pdf
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Consumer and Supply Chain Dynamics in the Portuguese Organic Milk Market AgEcon
Rosa, Rui; Mili, Samir; Briz, Julian.
This study explores consumer demand for organic milk products (OMP) and prospective developments in OMP supply chain in Portugal. Consumer demand is approached through a survey accomplished with a stratified sample of 625 consumers from the Porto Metropolitan area (north Portugal), whose population provides a broad representation of Portuguese. Likely future developments in the Portuguese OMP supply chain are established for 2015 time horizon through the Delphi technique, using a panel of 27 qualified experts from different professional backgrounds. Results show inter alia that there are among consumers significant lack of knowledge and conceptual distortion about the organic notion. Cluster analysis has led to the detection of three differentiated...
Tipo: Conference Paper or Presentation Palavras-chave: Organic milk; Consumer behaviour; Supply chain; Portugal; Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety.
Ano: 2009 URL: http://purl.umn.edu/59208
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Consumer Perceptions and Attitudes Towards Food Safety in Portugal AgEcon
Ventura-Lucas, Maria Raquel.
The recent food crises and its great diffusion through the media had as consequence a reduction of the European consumer's confidence, in general, and of the Portuguese ones in particular, in the products that they buy and consume. These events also served to disclose some of the existing problems in the current marketing chain, in which many sectors result to have low, or no transparency or unknown ones to the consumers. For moreover, these crises had demonstrated that science and technology, in set with the governmental regulation do not offer guarantees that the risks associated with food have acceptable levels. All these questions triggered the interest of researchers to study the impact of food safety related issues on consumer behaviour. The...
Tipo: Conference Paper or Presentation Palavras-chave: Food safety; Consumer behaviour; Perceptions; Attitudes; Portugal; Food Consumption/Nutrition/Food Safety.
Ano: 2004 URL: http://purl.umn.edu/24986
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Coping with ex ante Regulations and ex post Liability Rules for Planting Bt-maize – The Portuguese Experience AgEcon
Skevas, Theodoros; Fevereiro, P.; Wesseler, Justus.
This study investigates the attitude and practices of GM and non-GM maize farmers in Portugal. Thirty seven GM maize farmers were interviewed representing 22.5% of the total number of GM maize notifications in the country. Additionally, 66 non-GM maize farmers were surveyed in an attempt to investigate their opinion on the Bt technology, its viability and its future. The most interesting finding is that almost half of all the surveyed maize farmers (GM and non-GM) stated that the ex ante regulations are rigid and difficult to apply. On the contrary, the ex post tort liability rules are very clear and provide the appropriate security for the continuation of the GM maize cultivation.
Tipo: Conference Paper or Presentation Palavras-chave: Coexistence; Bt-maize; Portugal; Agricultural and Food Policy; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/44189
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Cross-cultural adaptation of Hypertension Knowledge Test into European Portuguese BJPS
Cabral,Ana C.; Moura-Ramos,Mariana; Castel-Branco,Margarida; Caramona,Margarida; Fernandez-Llimos,Fernando; Figueiredo,Isabel V..
ABSTRACT We aim to validate a European-Portuguese version of the Hypertension Knowledge Test (HKT) questionnaire and examine its factorial structure with a confirmatory factor analysis (CFA). A process of translation and back-translation was performed. A cross-sectional study was developed in which all adult patients taking at least one antihypertensive drug were invited to participate. Data on personal and family history were collected, and the HKT, Strelec, and the Batalla questionnaires were administered. We enrolled 304 patients with a mean age of 68.12±10.83 years. The mean score of HKT was 15.33±2.79. CFA indicated that the construct being tested was unidimensional, and Cronbach’s alpha (α=0.65) showed that the instrument had an acceptable internal...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Health Knowledge/attitudes/practice; Hypertension/prevention and control; Psychometrics; Surveys and questionnaires/standards; Portugal.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000400608
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Demand for Organic Milk Products in Portugal AgEcon
Rosa, Rui; Briz, Julian; Mili, Samir.
Milk consumption patterns are changing in Portugal. Factors like convenience, quality and safety increasingly constitute the basis for the Portuguese consumer purchasing decision. Demand for organic milk products (OMP) is emerging while most of these products are supplied by foreign companies. This study explores the demand for OMP in Portugal using both direct market observation and multivariate methods, in particular factor and cluster analysis. It appears that there are specific emerging segments preferring OMP, as they are increasingly concerned by health attributes and environmental protection.
Tipo: Conference Paper or Presentation Palavras-chave: Organic milk consumption; Market segmentation; Portugal; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2008 URL: http://purl.umn.edu/44330
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Digging in the graveyard of synonymy, in search of Portuguese species of Candidula Kobelt, 1871 (Mollusca: Gastropoda Pulmonata: Hygromiidae) Naturalis
Gittenberger, E..
Next to the wide-spread Candidula gigaxii (Pfeiffer, 1848) and C. intersecta (Poiret, 1801), four endemic Candidula species are reported from Portugal and characterized conchologically, viz. C. belemensis (Servain, 1880) (provisionally), C. codia (Bourguignat, 1859), C. olisippensis (Servain, 1880) and C. setubalensis (Pfeiffer, 1850). Several nominal taxa are classified in the synonymy of these six species, after topotypes (that might be syntypes) or lectotypes.
Tipo: Article / Letter to the editor Palavras-chave: Hygromiidae; Candidula; Taxonomy; Portugal; 42.73.
Ano: 1993 URL: http://www.repository.naturalis.nl/record/319316
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Drastic population size change in two populations of the Golden-striped salamander over a forty year period - are eucalypt plantations to blame? Naturalis
Arntzen, J.W..
Over the last half century the Iberian peninsula has seen the large scale planting of exotic gum trees (Eucalyptus sp.) therewith reducing space for native wildlife. An additional effect of the gum tree plantations may be the lowering of the water table in adjacent streams, to which amphibian species with a larval niche in the running sections of small streams would be especially susceptible. In northwestern Iberia that niche is occupied by the Golden-striped salamander, Chioglossa lusitanica. I here report on the demographic trends of two C. lusitanica populations over a forty year period, in two areas of one mountain range near Porto in northwestern Portugal. In both areas advantage was taken of the migration pattern of C. lusitanica to sites for...
Tipo: Article / Letter to the editor Palavras-chave: Amphibian decline; Chioglossa lusitanica; Demographic modelling; Gum tree; Iberia; Monoculture; Portugal; Urodela; Vortex; 42.82.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/569285
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Farm Structure and the Effects of Agri-Environmental Programs: Results from a Matching Analysis for European Countries AgEcon
Pufahl, Andrea; Weiss, Christoph R..
This paper extends previous research (Pufahl and Weiss, 2009) and applies a semi-parametric propensity score matching approach to evaluate the effects of agrienvironment (AE) programs on input use and farm output of individual farms in eight Member States of the European Union. We find substantial differences in treatment effects between countries. The analysis reveals significant effects of AE participation on production (Germany, France) and farm profits (France, Ireland, United Kingdom). AE participation sporadically reduces the intensity of land use as measured by the purchase of farm chemicals (fertilizer, pesticide) and grazing livestock densities. We also find differences in the treatment effect among farms with different farm size (heterogeneous...
Tipo: Conference Paper or Presentation Palavras-chave: Evaluation; Agri-environment programs; Propensity score matching; Germany; Italy; Spain; France; Portugal; United Kingdom; The Netherlands; EU-15; Agribusiness; Agricultural and Food Policy.
Ano: 2009 URL: http://purl.umn.edu/52997
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Field measurements of coastal waves and currents in Portugal and Greece ArchiMer
Paillard, Michel; Prevosto, Marc; Barstow, Sf; Soares, Cg.
The MAST II WAVEMOD Project aimed at improving stochastic modelling of ocean waves and currents in coastal waters. In order to supplement existing data, two measurement campaigns were carried our, one on the Atlantic coast of Portugal, and, secondly, on the northern coast of Crete in the Mediterranean. The Portuguese measurements covered 7 months during winter 1993-1994, while off Crete, measurements started early in February 1994 and continued for 10 months, In both sites, two directional Waveriders and one non-directional Waverider were deployed along a transect our from the coast in water depths between 10 and 100 m. In addition, the Mediterranean site also incorporated measurements of mean current velocities. Available satellite data were analysed to...
Tipo: Text Palavras-chave: Waves; Currents; Portugal; Greece.
Ano: 2000 URL: https://archimer.ifremer.fr/doc/00000/10506/66722.pdf
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Four new species of Pteromalus Swederus (Hymenoptera: Chalcidoidea: Pteromalidae) and redescriptions of three other species Naturalis
Gijswijt, M.J..
A key to the European species of the Pteromalus altus group is presented. The relationship between this group and species of the genus Euphorbia (Euphorbiaceae) is confirmed. One new species: P. villosae, associated with Euphorbia villosa Waldst. & Kit.is presented. Two new species of the albipennis group: Pteromalus almeriensis and P. costulata are presented. In addition one species of the P. vibulenus group: P. tethys is added. Information on P. sylveni Hedqvist, P. osmiae Hedqvist and P. discors Graham is given.
Tipo: Article / Letter to the editor Palavras-chave: Chalcidoidea; Pteromalidae; Pteromalus; New species; Redescriptions; Spain; Portugal; France; Greece; Euphorbia; 42.75.
Ano: 1999 URL: http://www.repository.naturalis.nl/record/215091
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Further observations on North African and South Iberian Bathyporeia (Crustacea, Amphipoda), with the description of a new species Naturalis
Udekem d’Acoz, C. d'; Echchaoui, H.M.C.; Menioui, M..
A new species of amphipod, Bathyporeia watkini sp. nov. from the Atlantic coasts of North Africa is described. This very characteristic species is abundant in some lagoons and estuaries near 28°N. New morphological information on B. elkaimi d’Udekem d’Acoz and Menioui, 2004 is given after specimens that were recently collected on the Atlantic coasts of southern Spain and South Portugal. The male of B. ledoyeri d’Udekem d’Acoz and Menioui, 2004 is described for the first time and new records of North African B. guilliamsoniana (Bate, 1857) and B. chevreuxi d'Udekem d'Acoz and Vader, 2005a are discussed.
Tipo: Article / Letter to the editor Palavras-chave: Bathyporeia; Crustacea; Amphipoda; Taxonomy; North Africa; Spain; Portugal; Eastern Atlantic; 42.74.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/209653
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Gammaridea and Caprellidea (Crustacea — Amphipoda) of the Portuguese south-western continental shelf: taxonomy and distributional ecology Naturalis
Marques, João Carlos; Bellan-Santini, Denise.
Amphipods from the Portuguese south and south-western continental shelf were studied with regard to the species inventory, distribution, and ecology. This study allowed the identification of 113 species, belonging to 52 genera; of these species 28 are recorded for the first time along the Portuguese coast. Two species, Ampelisca heterodactyla Schellenberg, 1925, and A. latifrons Schellenberg, 1925, are redescribed. The latter is different from the Ampelisca named latifrons by Ledoyer in 1972 and 1982. The absolute frequencies and abundances of the species, and their distribution in terms of bathymetry and type of substrate are also analysed. The most frequent and abundant species also presented wide ranges of vertical distribution. In addition, these...
Tipo: Article / Letter to the editor Palavras-chave: Gammaridea; Caprellidea; Taxonomy; Distribution; Ecology; Portugal.
Ano: 1991 URL: http://www.repository.naturalis.nl/record/504578
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