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Registros recuperados: 41
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Socioeconomics, Policy, or Climate Change: What is Driving Vulnerability in Southern Portugal? Ecology and Society
Moors, Eddy J.; ALTERRA; eddy.moors@wur.nl; Fraser, Evan D. G.; Department of Geography, University of Guelph; University of Leeds ; frasere@uoguelph.ca.
Tipo: Peer-Reviewed Reports Palavras-chave: Climate change; Drought; Portugal; System dynamics modeling; Vulnerability.
Ano: 2011
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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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Human–Nature Relationship in Mediterranean Streams: Integrating Different Types of Knowledge to Improve Water Management Ecology and Society
Clemente, Adelaide; Environmental Biology Centre, Faculty of Sciences, University of Lisbon; maclemente@fc.ul.pt; Nielsen, Kurt Aagaard; Department of Environmental, Social and Spatial Change, University of Roskilde; aagaard@ruc.dk; Branquinho, Cristina; Environmental Biology Centre, Faculty of Sciences, University of Lisbon; cmbranquinho@fc.ul.pt.
The social and ecological systems of Mediterranean streams are intrinsically linked as a result of long human occupation. In this region, these links vary greatly across small distances due to geomorphology, resulting in great diversity across space, which poses particular challenges for understanding and managing these systems. This demands (i) interdisciplinary integration of knowledge that focuses on the social–ecological interactions, while according due consideration to the whole; and also (ii) transdisciplinary integration, integrating lay and expert knowledge to understand local specificities. To address these needs—a focus on interactions and local knowledge—the research presented here studies the...
Tipo: Peer-Reviewed Reports Palavras-chave: Co-evolution; Ecological indicators; Interdisciplinary; Local knowledge; Natural resource management; Portugal; Social– Ecological systems; Transdisciplinary.
Ano: 2009
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Oak Persistence in Mediterranean Landscapes: The Combined Role of Management, Topography, and Wildfires Ecology and Society
Holmgren, Milena; Resource Ecology Group, Wageningen University; milena.holmgren@wur.nl; Mohren, Godefridus M.J.; Forest Ecology and Forest Management Group, Wageningen University; frits.mohren@wur.nl.
Mediterranean ecosystems have been shaped by a history of human and ecological disturbances. Understanding the dynamics of these social-ecological systems requires an understanding of how human and ecological factors interact. In this study, we assess the combined role of management practices and biophysical variables, i.e., wildfire and topography, to explain patterns of tree persistence in a cork oak (Quercus suber L.) landscape of southern Portugal. We used face-to-face interviews with landowners to identify the management practices and the incentives that motivated them. We used aerial photographs and a Geographic Information System (GIS) to classify vegetation patch-type transitions over a period of 45 years (1958-2002) and logistic regression to...
Tipo: Peer-Reviewed Reports Palavras-chave: Agroforestry system; Alternative ecosystem state; Cistus ladanifer; Land degradation; Mediterranean; Portugal; Shrub encroachment; Succession; Quercus suber; Vegetation transition.
Ano: 2010
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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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Water column and recent sediment data on diatoms and coccolithophorids, off Portugal, confirm sediment record of upwelling events ArchiMer
Abrantes, F; Moita, Mt.
Diatom and coccolithophorid abundance and diatom assemblage composition found in the water column along the Portuguese margin, during upwelling and non-upwelling conditions, are compared to the distribution patterns observed in the recent sediments from the same area. The water column results indicate a one order of magnitude increase in phytoplankton biomass during upwelling conditions (summer), with diatoms being the most important contributors. Coccolithophorids, on the contrary, dominate the phytoplankton in winter (non-upwelling), The comparison of the upwelling and non-upwelling spatial distribution of these phytoplankton groups to their sedimentary record reveals the sediment record as a reflection of the upwelling situation, preserving most of its...
Tipo: Text Palavras-chave: Upwelling; Portugal; Diatomée; Colonne d'eau; Sédiment; Upwelling; Portugal; Diatom; Water column; Sediment.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43630/43253.pdf
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Phylogeographic study of the dwarf oyster, Ostreola stentina, from Morocco, Portugal and Tunisia: evidence of a geographic disjunction with the closely related taxa, Ostrea aupouria and Ostreola equestris ArchiMer
Lapegue, Sylvie; Ben Salah, Ines; Batista, Frederico; Heurtebise, Serge; Neifar, L; Boudry, Pierre.
Despite the economic importance of oysters due to the high aquaculture production of several species, the current knowledge of oyster phylogeny and systematics is still fragmentary. In Europe, Ostrea edulis, the European flat oyster, and Ostreola stentina, the Provence oyster or dwarf oyster, are both present along the European and African, Atlantic and Mediterranean, coasts. In order to document the relationship not only between O. stentina and O. edulis, but also with the other Ostrea and Ostreola species, we performed a sequence analysis of the 16S mitochondrial fragment (16S rDNA: the large subunit rRNA-coding gene) and the COI fragment (COI: cytochrome oxidase subunit I). Oysters were sampled from populations in Portugal (two populations), Tunisia...
Tipo: Text Palavras-chave: Tunisia; Portugal; Marocco; Ostreola stentina; Ostreola equestris; Ostrea aupouria; Phylogeographic study.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1912.pdf
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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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Trends and drivers of marine fish landings in Portugal since its entrance in the European Union ArchiMer
Bueno-pardo, Juan; Pierce, Graham J; Cabecinha, Edna; Grilo, Catarina; Assis, Jorge; Valavanis, Vasilis; Pita, Cristina; Dubert, Jesus-pedreira; Leitão, Francisco; Queiroga, Henrique.
Marine landings in Portugal have decreased at a higher rate than fishing effort in the last 20 years. Identifying the variables driving the quantity and composition of landings is pivotal to understand the dynamics of the fisheries sector, which entails complex social and environmental aspects. In this study, we investigate the main drivers of marine fish landings in continental Portugal between 1989 and 2014. To identify common trends in time series, and quantify the importance of environmental factors, we applied a dynamic factor analysis considering four regions and three types of gear (trawling, purse-seine, and a multi-gear fishery). Our results show the importance of fishing effort as the most relevant factor driving marine landings in Portugal, both...
Tipo: Text Palavras-chave: Fisheries; Landings; Landings per unit effort; Portugal; Purse-seine; Trawling.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00609/72090/70918.pdf
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Water column and recent sediment data on diatoms and coccolithophorids, off Portugal, confirm sediment record of upwelling events ArchiMer
Abrantes, F; Moita, Mt.
Diatom and coccolithophorid abundance and diatom assemblage composition found in the water column along the Portuguese margin, during upwelling and non-upwelling conditions, are compared to the distribution patterns observed in the recent sediments from the same area. The water column results indicate a one order of magnitude increase in phytoplankton biomass during upwelling conditions (summer). with diatoms being the most important contributors. Coccolithophorids, on the contrary, dominate the phytoplankton in winter (non-upwelling). The comparison of the upwelling and non-upwelling spatial distribution of these phytoplankton groups to their sedimentary record reveals the sediment record as a reflection of the upwelling situation, preserving most of its...
Tipo: Text Palavras-chave: Upwelling; Portugal; Diatomée; Colonne d’eau; Sédiment; Upwelling; Portugal; Diatom; Water column; Sediment.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43613/43915.pdf
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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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Rapport de mission sur les récifs artificiels en Espagne et au Portugal - 12-23 avril 1999 ArchiMer
Dao, Jean-claude; Lacroix, Denis; Veron, Gerard.
L'Espagne et le Portugal sont de gros consommateurs de produits de la mer avec 42 et 60 kg par habitant et par an, respectivement. Ces deux pays accueillent également un important flux de tourisme, principalement sur les régions côtières. Enfin, comme le reste des pays européens, l'Espagne et le Portugal sont confrontés à une stagnation des apports de la pêche malgré l'accroissement de l'effort, y compris dans les petits fonds (moins de 50 m), normalement interdits de chalutage. C'est dans ce contexte que l'Espagne et le Portugal ont engagé depuis une douzaine d'années des programmes d'immersion de récifs à une échelle importante: - 87 projets réalisés, plus une dizaine en cours de mise en oeuvre - environ 973 km2 de zones protégées du chalutage illégal -...
Tipo: Text Palavras-chave: Récif artificiel; Repeuplement; Espagne; Portugal.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00142/25302/23374.pdf
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Local fishermen's perceptions of the usefulness of artificial reef ecosystem services in Portugal ArchiMer
Ramos, Jorge; Lino, Pedro G.; Himes-cornell, Amber; Santos, Miguel N..
Proponents of artificial reef (AR) deployment are often motivated by the usefulness of such structures. The usefulness of ARs is related to their capability of providing ecosystem services/additional functions. We present two distinct Portuguese AR case studies: (1) The Nazare reef off the central coast of Portugal and (2) the Oura reef off the Algarve coast. Semi-structured interviews were conducted with local fishermen in the fishing towns of Nazare and Quarteira pre-and post-AR deployment. The main focus of the interviews was to understand fishermen's perception of AR usefulness (or lack thereof) in terms of nine ecosystem services/additional functions potentially provided by the ARs. We tested the null hypothesis that ARs do not provide additional...
Tipo: Text Palavras-chave: Artificial reefs; Direct use value; Stakeholders; Ecosystem services; Indirect use value; Local fishermen; Likert scales; Portugal; Perception.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00479/59041/62432.pdf
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Supply and larval traits at metamorphosis of a coastal marine invertebrate with a bi-phasic life cycle under contrasting oceanographic conditions ArchiMer
Rey, Felisa; Silva Neto, Gina M.; Bueno-pardo, Juan; Bispo, Regina; Calado, Ricardo.
Patterns of larval supply and larval condition at metamorphosis play key roles in the structure and dynamics of marine populations. Hence, biological and environmental conditions driving the dispersion of larval individuals, shape early life phenotypes, and influence their survival and post-settlement success. We performed a study over two consecutive years at Ria de Aveiro (Portugal), a coastal lagoon influenced by upwelling regimens in the North-eastern Atlantic. This study assessed the effect of contrasting oceanographic conditions on larval supply and larval traits at metamorphosis of the green crab Carcinus maenas. Crab megalopae were daily sampled and monitored in the laboratory until metamorphosis. Environmental conditions experienced by larvae in...
Tipo: Text Palavras-chave: Carcinus maenas; Bi-phasic life cycles; Invertebrate larvae; Phenotypic variations; Time series; Upwelling; East Atlantic; Portugal; Ria de Aveiro.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00514/62599/66957.pdf
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Speciation in Cyprinidae of the Iberic Peninsula. ArchiMer
Almaca, Carlos.
Coming from Oriental Asia and Siberia, the Cyprinidae reached the Iberic Peninsula probably at the end of the Oligocene. Their populations bore speciation processes which led to the formation of a fauna rich in endemic species and subspecies. Populations of two of the genera Barbus and Pseudophoxinus reached Northwestern African forming there several endemic species. Concerning the speciation forms, it is probable that the allopatric form, whether by foundation effect or by subdivision, played an important part. Pyrenees and Mediterranean Sea settled probably efficient barriers for the Iberic Cyprinidae isolation. The present geographical repartition of Cyprinidae in Iberic Peninsula suggests that altitude lines and glaciations which reached the north of...
Tipo: Text Palavras-chave: Portugal; Spain; Cyprinidae; Biogeography; Speciation.
Ano: 1976 URL: http://archimer.ifremer.fr/doc/1976/publication-1997.pdf
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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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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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On Cernuella virgata (Da Costa, 1778) and two Iberian Xerosectaspecies (Mollusca: Gastropoda Pulmonata: Hygromiidae) Naturalis
Gittenberger, E..
On the basis of a conchological study, taking anatomical data from the literature into account, four hygromiid species, sensu Ortiz de Zarate y Lopez, are reduced to three, viz. Cernuella virgata (Da Costa), Xerosecta promissa (Westerlund) and X. reboudiana (Bourguignat). Diagnostic shell characters are discussed and illustrated, and synonymy lists are given.
Tipo: Article / Letter to the editor Palavras-chave: Hygromiidae; Cernuella; Xerosecta; Taxonomy; Spain; Portugal; 42.73.
Ano: 1993 URL: http://www.repository.naturalis.nl/record/318631
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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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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
Registros recuperados: 41
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