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In the present article, the proposal of a new suballiance, Lavandulo luisieri-Cistenion albidi, is presented, constituted by chamaephytic and nanophanerophytic communities in eroded decarbonated soils derived from limestones (leptosols, chromicluvisols and cambisols) in the dry to lower hyperhumid, thermo-mesomediterranean bioclimatic levels. It is distributed throughout the western Iberian Peninsula in the Coastal Lusitan- Andalusian and Lusitan-Extremadurean biogeographical territories. It is positioned in the Ulici argentei-Cistion ladaniferi, Lavanduletalia stoechadis, Cisto-Lavanduletea. The new associations Anthyllido maurae-Ulicetum jussiaei, Sedo albi-Cistetum crispi and Thymetum congesti are also described. The multivariate analysis confirmed the segregation of this new suballiance, as well as the new associations., En este artículo, se presenta una nueva subalianza Lavandulo luisieri-Cistetum albidi, constituida por un conjunto de comunidades vegetales arbustivas (camafíticas y nanofanorofíticas) características de los suelos descarbonatados y erosionados, derivados de las calizas (leptosoles, luvisoles crómicos y cambisoles). Se tratan de comunidades vegetales que se dan en el oeste de la Península Ibérica, en los territorios biogeográficos costeros lusitano-andaluces y luso-extremadurenses y en los pisos bioclimáticos secos a hiperhúmedos inferiores del termo-mediterráneos. Estas comunidades forman parte de la siguiente syntaxa: Ulici argentei-Cistion ladaniferi, Lavanduletalia stoechadis, Cisto-Lavanduletea. Además de la nueva subalianza, se describen también tres nuevas asociaciones: Anthyllido maurae-Ulicetum jussiaei, Sedo albi-Cistetum crispi y Thymetum congesti. El análisismultivariado confirmó la segregación de la nueva subalianza descrita, así como las nuevas asociaciones., No presente artigo apresentamos uma nova subaliança Lavandulo luisieri-Cistetum albidi, constituída por um conjunto de comunidades vegetais arbustivas (camefíticas e nanofanerofíticas) características de solos descarbonatados e submetidos a erosão, derivados de calcários (leptossolos, luvissolos crómicos e cambissolos). Tratam-se de comunidades vegetais que ocorrem no ocidente da Península Ibérica, nos territórios biogeográficos Costeiro Lusitano-Andaluz e Luso-Extremadurense e nos andares bioclimáticos termo-mesomediterrânico seco a hiper-húmido inferior. Estas comunidades vegetais inserem- se nos seguintes syntaxa: Ulici argentei-Cistion ladaniferi, Lavanduletalia stoechadis, Cisto-Lavanduletea. Para além da nova subaliança, são, também, descritas três novas associações: Anthyllido maurae-Ulicetum jussiaei, Sedo albi-Cistetum crispi e Thymetum congesti. A análise multivariada confirmou a segregação da nova subaliança descrita assim como das novas associações.

Background High-quality data is crucial for guiding decision making and practicing evidence-based healthcare, especially if previous knowledge is lacking. Nevertheless, data quality frailties have been exposed worldwide during the current COVID-19 pandemic. Focusing on a major Portuguese surveillance dataset, our study aims to assess data quality issues and suggest possible solutions. Methods On April 27th 2020, the Portuguese Directorate-General of Health (DGS) made available a dataset (DGSApril) for researchers, upon request. On August 4th, an updated dataset (DGSAugust) was also obtained. The quality of data was assessed through analysis of data completeness and consistency between both datasets. Results DGSAugust has not followed the data format and variables as DGSApril and a significant number of missing data and inconsistencies were found (e.g. 4,075 cases from the DGSApril were apparently not included in DGSAugust). Several variables also showed a low degree of completeness and/or changed their values from one dataset to another (e.g. the variable ‘underlying conditions’ had more than half of cases showing different information between datasets). There were also significant inconsistencies between the number of cases and deaths due to COVID-19 shown in DGSAugust and by the DGS reports publicly provided daily. Conclusions The low quality of COVID-19 surveillance datasets limits its usability to inform good decisions and perform useful research. Major improvements in surveillance datasets are therefore urgently needed - e.g. simplification of data entry processes, constant monitoring of data, and increased training and awareness of health care providers - as low data quality may lead to a deficient pandemic control.

Conducting Action and Design Research within organizations - with the objective of solving multidimensional problems, promoting effective change, developing useful artifacts, and generating actionable knowledge - involves the iterative application of a rigorous set of integrated processes. In a previous publication - based on empirical work, on a comprehensive literature review, and the practice of applying it to teach graduate students on qualitative research methods - a high-level conceptual model for Action & Design Research has been developed and published. It has identified - through the presentation of a tri-dimensional perspective, under the form of a cube - the essential processes and data components, emerging from the Organization Development, Engineering, and Science perspectives. Based on that high-level conceptual view, the objective of the current article is to detail a pragmatic approach to the main activities which are involved in the Action and Design Science Research approaches - under the form of high-level Process Meta-Models. info:eu-repo/semantics/publishedVersion

Developing Action and Design Research (ADR) interventions involves the application of a rigorous set of processes, and the production of explicit data to support the whole process, evidencing its base, intermediate, and final results. In a previous publication – based on empirical work, a comprehensive literature review, and the practice of its application teaching graduate students on qualitative research – a conceptual model for ADR has been developed. It has presented a tri-dimensional perspective, emergent from the Organization Development, Engineering and Science approaches, identifying its core processes and data. Based on that view, a high-level Process Meta-Model has been produced, detailing the main processes involved in ADR interventions and the associated data flows. Progressing within this structured line of research, the objective of this publication is to present a pragmatic approach to ADR main data structures – under the form of a high-level Data Model – evidencing the core data involved in the design, planning, development, and evaluation of this kind of initiatives. It includes the associated data structure diagram and the relevant details of the respective data components, which will act as researchers’ facilitators for documenting the whole process. info:eu-repo/semantics/publishedVersion

Apresenta-se um estudo dos arrelvados naturais vivazes da bacia hidrográfica do rio Paiva, em particular das classes: 1) Festucetea indigestae; 2) Stipo giganteae-Agrostietea castellanae; 3) Molinio-Arrhenatheretea e 4) Nardetea. Com base em inventários realizados desde 2004, bem como em trabalhos publicados onde se estudou o território em causa, reconhecem-se oito associações e uma comunidade enquadráveis nas referidas classes, respectivamente: 1) Polytricho-Agrostietum truncatulae, Diantho langeani-Festucetum summilusitanae ass. nova; 2) Arrhenathero bulbosi-Armerietum beiranae ass. nova, com. de Armeria beirana e Arrhenatherum sardoum; 3) Peucedano lancifolii-Juncetum acutiflori, Agrostio castellanae-Arrhenatheretum bulbosi, Anthemido nobilis-Cynosuretum cristati; 4) Centaureo lusitanae-Pseudarrhenatheretum longifolii ass. nova, Genisto anglicae-Nardetum strictae. Apresenta-se ainda uma associação vegetal casmofítica original, enquadrável na classe Phagnalo-Rumicetea indurati, encontrada no decorrer do presente trabalho, que aqui se descreve dado o seu valor para a conservação da natureza, dominada pelo endemismo do centro de Portugal continental Anarrhinum longipedicellatum (Anarrhinetum longipedicellati ass. nova). Destaca-se o caso particular do arrelvado Arrhenathero bulbosi-Armerietum beiranae, hoje com grande expressão no território em estudo, ocupando parte considerável das áreas graníticas meso a supratemperadas, húmidas a hiper-húmidas, das serras do Montemuro, Leomil e Lapa. A expansão deste arrelvado está indiscutivelmente ligada quer ao abandono da agricultura e do pastoreio – que levaram a uma redução considerável das áreas cultivadas, bem como das comunidades de Molinio-Arrhenatheretea e de Nardetea – quer à elevada frequência de incêndios, dado que se trata de uma comunidade subserial dos carvalhais de Holco mollis- Quercetum pyrenaicae e, pontualmente, de Rusco aculeati-Quercetum roboris quercetosum roboris info:eu-repo/semantics/publishedVersion

Os lameiros são pastagens seminaturais de flora indígena dependentes de uma gestão antrópica por pastoreio e/ou corte. Nas regiões de clima mediterrânico ou submediterrânico são constituídos por mosaicos complexos de comunidades vegetais. Os trabalhos clássicos do Eng.o Agrón. A. N. Teles nas décadas de 1960 e 1970 demonstraram que a maior parte da biomassa dos lameiros é produzida em comunidades de Arrhenatheretalia. Com menos biomassa, mas de enorme relevância na diversidade específica dos lameiros, participam nestes mosaicos comunidades de turfeiras minerotróficas (Scheuzerio-Caricetea fuscae), juncais (Molinietalia), vários tipos de vegetação seminitrófila anual (Geranio purpureae-Cardaminetalia hirsutae) ou perene (Galio- Alliarietalia) e, nos espaços mediterrânicos, ervaçais mesófilos de Agrostion castellanae (Stipo-Agrostietea castellanae), frequentemente dominantes nos lameiros de secadal. Uma revisão da taxonomia dos lameiros transmontanos efetuada no âmbito do projeto Interreg SUDOE SOS-Lameiros SOE1/P5/E0376 mostrou que estão por descrever duas comunidades de lameiro, de grande expressão territorial, concretamente, uma vicariante temperada da associação clássica Agrostio-Arrhenatheretum e uma associação de Festuca rothmaleri, com afinidades com a vegetação de Nardetea strictae. Observações efetuadas pelos autores nas últimas duas décadas indiciam que a comunidade de Festuca rothmaleri está em franca expansão à custa de um retrocesso de comunidades mais produtivas e com erva de melhor qualidade nutricional. Dados ainda preliminares mostram que esta comunidade pronuncia um processo de alteração do maneio e que está associada a solos oligotróficos e ácidos, com desequilíbrios nutricionais, possivelmente em consequência de uma história recente de exportação de nutrientes pelo feno sem a necessária reposição através de estrumes ou fertilizantes químicos. info:eu-repo/semantics/publishedVersion

The construction of big dams usually cause a severe environmental change at a local level, producing a considerable visual impact that must be remedied and the disturbed area must be rehabilitated and recovered, approaching the landscape prior to the dam construction. In this work, several assays were tested, with the purpose of finding a treatment for fresh cut granite that could be used as a general rock treatment for visual impact of fresh excavated rocks. Some organic mixtures were tried, using autochthonous lichens and moss, as well as chemical treatments, like acid or paint. Granite blocks were selected and five different treatments were applied to cover the fresh granitic blocks and trigger their colonization and aging. The experiment has been established on two groups of blocks, one submitted to irrigation three times a week and the other without irrigation. Each treatment had two repetitions per group. Two blocks for control were also established in each group to interpret the gaps of variation in comparison to the treated blocks. All the stone blocks were maintained in a greenhouse, with controlled temperature and humidity. The monitoring of the treatment was done by taking pictures every 20 days, that were analyzed using RGB color characteristics and parameters that shows the evolution of pigmentation of the blocks. The results of this study show that three or at least two out of the five tested treatments are recommended to use in the disturbed areas. Irrigation can be more useful for the first two to three weeks after treatments info:eu-repo/semantics/submittedVersion

Agricultural abandonment is a major driver of change in rural landscapes. Assumed to provide beneficial results to the environment and the conservation of biota, rural abandonment triggers landscape and biotic homogenization and loss of valuable species and habitats. This article focuses on the ecological effects and conservation challenges of shifts in extensive grazing regimes on marginal pastureland of Mediterranean mountains. We conceptualize a navigated socioecological transition toward conservation-oriented management after the collapse of historical land systems. The article provides examples from the LIFE+ project “Higro,” developed in mountainous protected areas in Portugal, of how management for conservation could sustain disturbance-dependent habitats. We argue that actively and regularly managing large habitat areas should be envisaged as a short-term approach to limit the immediate effects of rural abandonment. A gradual integration of conservation targets with other activities in changing rural economies is necessary to foster long-term conservation of species and habitats, building on the link between conservation-oriented habitat management and ecosystem services in rural landscapes. Conservation goals should run alongside recovery of social systems and innovation applied to traditional sources of income. This parallel development would contribute to building up social-ecological resilience by maintaining a diversity of social and ecological capital in rural areas. info:eu-repo/semantics/publishedVersion

We present a bioclimatological diagnosis of mainland Portugal, namely the thermotype and ombrotype maps following Rivas-Martínez’s worldwide bioclimatic classi$cation system. In order to obtain this diagnosis, we produced maps of bioclimatological indices using, as base data, geostatistical interpolations of air temperature and precipitation.We performed uncertainty propagation obtaining uncertainty measures for the produced maps: mean absolute errors and root mean squared errors. For the non-linear indices, besides the usual approximation using Taylor expansion, we devised error formulae, for which we showed that the propagated uncertainties are upper bounds on the true uncertainty measures. We compared the obtained uncertainty measures to those reported on a previously published work, which used a different methodological framework to obtain the same diagnosis. Although the approach we used here implies a great number of interpolations and subsequent calculation steps, it permitted the use of a large amount of data relative to precipitation. An F-test showed that the estimated mean squared errors for the maps of ombrothermic indices were signi$cantly lower than those produced by the former methodological framework. info:eu-repo/semantics/publishedVersion

Introdução e objectivo: A dengue é uma entidade que historicamente vem descrita na literatura desde pelo menos o século XVIII. Nos últimos anos houve uma intensificação da transmissão viral assim como um aumento da incidência de febre hemorrágica da dengue a nível mundial potenciado por uma urbanização crescente, um aumento populacional e da sua mobilidade, e por alterações climáticas. O vector de transmissão da doença é o mosquito Aedes aegypti. A maioria das infeções são subclínicas. Existem três fases de doença: febril, crítica e de recuperação. Os sinais e sintomas mais frequentes são: febre, flushing facial, mialgias, artralgias, dor retro -orbitária, fotofobia e cefaleias. As manifestações hemorrágicas podem também ocorrer. Analiticamente os achados mais característicos são: trombocitopenia, leucopenia e disfunção hepática (aumento de enzimas e prolongamento do INR). Os autores apresentam os casos de dengue com necessidade de internamento no Hospital Central do Funchal durante a 1ª epidemia europeia de casos não importados de dengue do século XXI. O objectivo do estudo foi avaliar as características demográficas, evolução clínica da doença, suas manifestações e alterações analíticas. Material e métodos: estudo retrospectivo dos casos diagnosticados de dengue no período entre Setembro e Dezembro de 2012 e que necessitaram de internamento em enfermaria, através da análise dos respectivos processos clínicos. Resultados: Foram internados 67 doentes, quarenta e três mulheres e vinte e quatro homens. A idade média foi de 44 anos. A média de dias de evolução de doença até à procura de cuidados de saúde foi de 3,4 dias. Os sintomas que mais motivaram a procura de cuidados de saúde foram: mialgias (31 doentes / 42,3%), náuseas (18 doentes / 26,9%), cefaleias (17 doentes / 25,4%), dor abdominal (7 doentes / 10,4%), exantema (5 doentes / 7,5%), diarreia (3 doentes / 4,5%) e artralgias (3 doentes / 4,5%). Analiticamente a disfunção hepática foi frequente, estando presente em 88% dos doentes. A trombocitopenia e a leucopenia foram outro achado frequente, sendo objectivados em 86,5% e 80,6% dos doentes respectivamente. O tempo médio de internamento hospitalar foi de 5 dias. Todos os doentes realizaram terapêutica de suporte, não havendo complicações major. Conclusão: A apresentação clínico-laboratorial da população por nós estudada é semelhante a algumas séries publicadas, apesar de na ilha da Madeira estar apenas presente o serotipo 1 do vírus da dengue. A ausência da co-existência de diferentes serotipos poderá explicar o facto de não terem sido registados casos graves de dengue (febre hemorrágica). O tratamento é de suporte. Um novo surto de dengue poderá provocar infeções secundárias, devendo a Madeira estar preparada para abordá-las da melhor maneira possível., Medicina Interna, Vol. 21 N.º 3 (2014): Julho/ Setembro

Submitted by Margarida Galamba (galamba@isa.utl.pt) on 2015-01-26T16:57:21Z No. of bitstreams: 1 REP-2015-jccosta-v22n1a09.pdf: 141008 bytes, checksum: 87d76fd8721adefdfd28669a35d9eaaf (MD5) Made available in DSpace on 2015-01-26T16:57:21Z (GMT). No. of bitstreams: 1 REP-2015-jccosta-v22n1a09.pdf: 141008 bytes, checksum: 87d76fd8721adefdfd28669a35d9eaaf (MD5) Previous issue date: 2014

In this work we propose a syntaxonomic scheme, according to the Code of Phytosociological Nomenclature for the vegetation of Portugal: continental and the Azores and Madeira archipelagos. The scheme encompasses 827 associations (4 communities), 245 alliances, 116 orders, and 64 vegetation classes. The 58 suballiances, 2 suborders and 4 subclasses, are also mentioned, as auxiliary ranks. For the higher syntaxa down to suballiance level, succinct ecological, physiognomic and chorological diagnosis has been made, and the characteristic species are related. New syntaxa names and corrections are described and listed in Annex I. It is also presented a floristic catalogue sheet with the syntaxonomic optimal for each taxon (Annex III). This list contains 2930 taxa.

In this paper we propose a syntaxonomic scheme, according to the Code of Phytosociological Nomenclature for the vegetation of Portugal: continental and the Azores and Madeira archipelagos. The scheme encompasses 827 associations (4 communities), 245 alliances, 116 orders, and 64 vegetation classes. The 58 suballiances, 2 suborders and 4 subclasses, are also mentioned, as auxiliary ranks. For the higher syntaxa down to suballiance level, succinct ecological, physiognomic and chorological diagnosis has been made, and the characteristic species are related. New syntaxa names and corrections are described and listed in Annex I. It is also presented a floristic catalogue sheet with the syntaxonomic optimal for each taxon (Annex III). This list contains 2930 taxa.

Regulated alternative polyadenylation is an important feature of gene expression, but how gene transcription rate affects this process remains to be investigated. polo is a cell-cycle gene that uses two poly(A) signals in the 3' untranslated region (UTR) to produce alternative messenger RNAs that differ in their 3'UTR length. Using a mutant Drosophila strain that has a lower transcriptional elongation rate, we show that transcription kinetics can determine alternative poly(A) site selection. The physiological consequences of incorrect polo poly(A) site choice are of vital importance; transgenic flies lacking the distal poly(A) signal cannot produce the longer transcript and die at the pupa stage due to a failure in the proliferation of the precursor cells of the abdomen, the histoblasts. This is due to the low translation efficiency of the shorter transcript produced by proximal poly(A) site usage. Our results show that correct polo poly(A) site selection functions to provide the correct levels of protein expression necessary for histoblast proliferation, and that the kinetics of RNA polymerase II have an important role in the mechanism of alternative polyadenylation.

Due to their complexity, vegetation phenomena are not understandable without a consistent conceptual framework. A few indispensable concepts to explore the northeastern Portuguese ultramafic vegetation are set out in Tables 9 and 10. Association. The Phytosociology fundamental abstract unit is the association or associatio. The concept of association comprises an ecological-taxonomic model of the reality. Therefore, the association includes the notion of a plant community (biological information: floristic, physiognomic etc.) that occupies a particular biotope (chorologic information) where a specific set of environmental conditions can be found, i.e. the habitat (environmental information). The taxonomic element is mainly supported on the floristic composition, which is characteristic and statistically constant between associations. The development of a hierarchical syntaxonomic system (synsystem) is based above all on floristic, but also on environmental, biogeographic and physiognomic characters. Although the association concept is not a true synonym of phytocoenosis the two terms are often used interchangeably, which may result abusive

Frequently climate is considered the first factor influencing flora, and consequently, vegetation distribution (Walter 1986; Woodward & B. G. Williams 1987; Capelo 2003; Peinado et al. 2007). Bioclimatology is the science that investigates the relationship between climate and the distribution of organisms. Rivas-Martínez’s Worldwide Bioclimatic Classification (RMWBC) has been developed by Rivas-Martínez with a number of approaches since 1982 (Rivas-Martínez 1996; 2008), with close reference to vegetation distribution, and is currently the most widely applied classification by Iberian phytosociologists, as well as from other Mediterranean countries. Based on the RMWBC, Monteiro-Henriques (2010) produced a set of bioclimatological maps for mainland Portugal (1960-1990) using the climatic statistical interpolations of Silva (2005) and Nicolau (2002) as base data. Using these bioclimatological maps of Monteiro-Henriques (2010) we present thermotype and ombrotype maps for mainland Portugal following the latest version of the RMWBC (Rivas-Martínez 2008), with particular focus on the Morais-Bragança area (Figure 5 and 6).

The mesophilous woods dominated by Quercus faginea subsp. faginea or Acer monspessulanum thriving on neutral to alkaline deep clayish soils have been collected under the alliance Aceri granatensis-Quercion fagineae (Rivas Goday, Rigual & Rivas-Martínez in Rivas Goday, Borja, Esteve, Galiano, Rigual & Rivas-Martínez 1960) Rivas-Martínez 1987. Punctually, woods dominated by Q. faginea subsp. alpestris, Corylus avellana or Acer granatensis have also been ascribed to this alliance. In the Iberian Peninsula, these mesophilous woods are mainly found within the Western Mediterranean region, mainly in the eastern half of the Iberian Peninsula and occasionally in the Majorcan northern mountains, generally in mountainous areas under meso to supramediterranean, sub-humid to humid, euoceanic to semicontinental bioclimates (Rivas-Martínez et al. 2002). This alliance belongs to the Quercetalia pubescentis order from the Querco-Fagetea class, and was not represented in Portugal until the actual moment. We present two new associations, one dominated by Quercus faginea subsp. faginea and a second one dominated by Acer monspessulanum for the Portuguese territory. We analysed 188 Iberian vegetation relevés ascribed to the Aceri granatensis-Quercion fagineae alliance using a cluster analysis (both agglomerative and k-means clustering). The results were generally consistent with the phytosociological unit, but minor changes are proposed. A subsequent analysis of the indicator value (of Dufrêne & Legendre) of species is presented, highlighting the species with higher indicator values resulting statistically significant on the permutation test.

The invaluable commented checklist of the vascular flora of the ultramafic rocks of northeastern Portugal of Pinto da Silva (1970) has been recently reviewed by Aguiar and Monteiro-Henriques (ined.). These authors’ accept 568 taxa, 29% of which (164 taxa) are new additions to the original catalogue of Pinto da Silva (1970). A subset of it with the most frequent and floristically relevant species is presented in Table 6. New additions have been highlighted with an asterisk (*). The most noticeable neophytes have been included and marked with an open rhombus (◊). A few synonyms have been added to facilitate the reading of the list of Pinto da Silva (1970). Familiar circumscription and higher taxa are according, respectively, to APG III (2009) and Chase & Reveal (2009). The main sources of infrafamiliar taxonomic information were the Flora Iberica (Castroviejo 1981+), Nova Flora de Portugal (Franco 1971; 1984; Franco & Rocha Afonso (1994; 1998), The Checklist of the Portuguese Vascular Flora (Sequeira et al. 2011) and, among others, the taxonomic revisions of Romero et al. (1988) (Agrostis), Díaz Lifante & Valdés (1996) (Asphodelus), La Guardia & Blanca (1987) (Scorzonera), Schippmann (1991) and Voght (1991) (Leucanthemum). We followed different taxonomic or nomenclatural criteria from Flora Iberica or Nova Flora de Portugal in Armeria langei subsp. marizii, Anthyllis sampaioana, A. vulneraria subsp. lusitanica, Alyssum serpyllifolium subsp. lusitanicum, Asplenium adiantum-nigrum subsp. corunnense, Carlina hispanica, Centaurea langei, Festuca elegans subsp. merinoi, Helianthemum apenninum subsp. rothmaleri, Tuberaria guttata and Trifolium striatum var. brevidens. The preparation of a checklist of ultramafic vascular flora is a difficult task. First of all, flora checklists are unfinished assignments because plants come and go with time. On the other hand, the northeastern Portugal ophiolites lithology is heterogeneous and complex. Peridotites, and similar ultramafic rocks, appear in stretched outcrops dispersed among macromorphologically similar basic rocks. The soils that have covered the ultramafic rocks many times catch materials from nearby mafic and leucocratic rocks. Finally, deep soils, rich in organic matter, derived from ultramafic rocks, usually have a similar flora to other nearby lithologies. The serpentine effect is in practice impossible to spatialize and quantify; consequently an ultramafic vascular flora checklist brings together plants of rather diverse ecology, and is by itself of limited scientific value.

Submitted by Margarida Galamba (galamba@isa.utl.pt) on 2014-10-24T09:23:32Z No. of bitstreams: 1 REP-Espirito-Santo, D.-Final-1.pdf: 6873589 bytes, checksum: 2ae1ea676a78569cc26e0ad82c593664 (MD5) Made available in DSpace on 2014-10-24T09:23:32Z (GMT). No. of bitstreams: 1 REP-Espirito-Santo, D.-Final-1.pdf: 6873589 bytes, checksum: 2ae1ea676a78569cc26e0ad82c593664 (MD5) Previous issue date: 2011-01

A subaliança Fraxino angustifoliae-Ulmenion minoris (Populion albae, Populet alia albae, Salici purpureaePopuletea nigrae) reúne os bosques climácicos tempori higrófilos das zonas mais elevadas das margens dos rios - raramente inundadas - bem como de cabeceiras de linhas de água - onde o caudal não chega a ser permanente. Com base em inventários realizados desde 2004, são propostos dois novos sintáxones no âmbito desta subaliança : Hedero hibernicae Fraxinetum angustifoliae omphalodetosum nitidae e Clematido campanifloraeCeltidetum australis. Por fim, apresenta-se uma análise de agrupamento (cluster analysis) com todas as comunidades pertencentes a esta subaliança, com presença reconhecida em Portugal continental. Tal análise revelou que a sintaxonomia - actual e proposta - é consistente, discriminando claramente os sintáxones em causa.

No presente trabalho descreve-se uma nova associação Cytiso grondiflori-Arbutetum unedonis (Quercetea ilicis, Pistacio lentisci-Rhamnetalia alaterni, Erician arboreae) que representa a primeira etapa de substituição, ou orla, dos sobreirais de Physospermo cornubiensis Quercetum suberis quercetosum jagineae e dos carvaIhais de Hedero hibernieae-Quercetum /agineae, no sector Lusitano-Duriense.

Submitted by Margarida Galamba (galamba@isa.utl.pt) on 2013-03-21T14:57:57Z No. of bitstreams: 1 Neto et al. (2009) - Novas ocorrências de Spahgnum auriculatum no sul de Portugal.pdf: 822133 bytes, checksum: 74f697a2c3bbcefdfa41a1a70be5b0f0 (MD5) Made available in DSpace on 2013-03-21T14:57:57Z (GMT). No. of bitstreams: 1 Neto et al. (2009) - Novas ocorrências de Spahgnum auriculatum no sul de Portugal.pdf: 822133 bytes, checksum: 74f697a2c3bbcefdfa41a1a70be5b0f0 (MD5) Previous issue date: 2009

An attempt to obtain a consistent spatial model of natural potential vegetation (NPV) for the mainland Portuguese territory is reported. Spatial modeling procedures performed in a Geographic Information System (GIS) environment, aimed to operationalize phytosociological expert-knowledge about the putative distribution of potential zona1 forest communities dominam in the Portuguese continental territories. The paradigm for NPV assumed was that of RIVAS-MARTINE(1Z9 76) and RIVAS-MARTINEeZt al. (1999), which presupposes, for a given territory, a univocal correspondence between a uniform combination of bioclimatic stage and lithology' gi ven a biogeographical context, and a unique successional sequence leading to a single climax community (i. e. a vegetation series (VS)). Information issued from both literature and a team of phytosociologists possessing detailed knowledge about Portuguese vegetation, namely about forests and its seria1 vegetation, was acknowledged as a starting point for the construction of such a habitat-vegetation correspondence model. First, a bioclimatic map concerning the "Worldwide Bioclimatic Classification System" (WBCS) of RIVAS-MARTINE(1Z9 81 -2004), obtained by multivariate grostatistical interpolation issuing from the work of MESQUITA(2 005), was set. Severa1 partia1 matrices, one for each biogeographical Province, combined such habitat statements to VS. Initial incoherence due to vagueness of statements led to an important amount of both superimposition of VS and habitat gaps in the matrices. Further rearrangement of the table according to known field distribution of VS by experts allowed setting an approximate univocal correspondence VS-habitat. Finally, an intersection of bioclimatic, lithology and biogeographic maps yielded over a thousand habitat combinations to be associated each to a single VS through implementation of the matrices as a set of rules. Again, inconsistencies were solved likewise, but this time by direct observation of the map by experts. Keeping of phytosociological consistency and fidelity to information on actual vegetation field distribution was always mandatory during the process

Os sobreirais da bacia ceno-antropozóica do Tejo (Província Lusitano-Andaluza Litoral), Portugal. A análise das características das formações litológicas de enchimento da bacia do Tejo, com idades que vão do Miocénico ao Plistocénico, permitiu compreender melhor o mosaico de sobreirais potenciais, pertencentes respectivamente ao Oleo sylvestris-Quercetum suberis e ao Asparago apphylli-Quercetum suberis. A composição granulométrica, a coesão das partículas e o efeito da distribuição dos dois sobreirais potenciais e nas respectivas etapas subseriais. A acção antrópica sobre as formações areníticas promove a libertação e a acumulação das areias. Este processo permite a entrada de espécies psamofílicas e desta forma a vegetação potencial primitiva (Asparago apphylli-Quercetum suberis) é substituída pela série psamofílica do sobreiro (Oleo sylvestris-Quercetum suberis).

Submitted by Margarida Galamba (galamba@isa.utl.pt) on 2013-03-22T10:09:46Z No. of bitstreams: 1 Costa et al. (2005) - The Landscape and Plant Communities of Serra da Arrábida.pdf: 2371841 bytes, checksum: a0cd0546ba382b1196c106364390d5e2 (MD5) Made available in DSpace on 2013-03-22T10:09:46Z (GMT). No. of bitstreams: 1 Costa et al. (2005) - The Landscape and Plant Communities of Serra da Arrábida.pdf: 2371841 bytes, checksum: a0cd0546ba382b1196c106364390d5e2 (MD5) Previous issue date: 2005

Submitted by Margarida Galamba (galamba@isa.utl.pt) on 2013-03-22T10:02:10Z No. of bitstreams: 1 Mesquita et al. (2005) - Sintra Vegetation and Landscape.pdf: 3522198 bytes, checksum: 4ccf2480d49c88c08373762586cf2d00 (MD5) Made available in DSpace on 2013-03-22T10:02:10Z (GMT). No. of bitstreams: 1 Mesquita et al. (2005) - Sintra Vegetation and Landscape.pdf: 3522198 bytes, checksum: 4ccf2480d49c88c08373762586cf2d00 (MD5) Previous issue date: 2005