968 resultados para Sudoeste peninsular
Resumo:
A sustentabilidade dos recursos marinhos da costa portuguesa tem sido posta em causa de forma crescente devido a variados factores, nomeadamente pelo aumento do esforço da pesca, com consequência na redução de alguns mananciais (por ex. a sardinha ou a pescada), conduzindo a uma grande apreensão na sua gestão. Por outro lado, novos desafios têm surgido na última década, sobretudo no contexto da gestão espacial maritima (Marine Spatial Planning), com particular evidência na costa algarvia. Efectivamente, nesta zona, devido ao aumento das actividades das aquaculturas de mar aberto ou “offshores” e das armações de atum, mas também devido às disputas habituais entre as diferentes frotas, a gestão espacial tem estado cada vez mais na ordem do dia. Estes factos foram em grande medida os principais motivadores e impulsionadores para a execução do presente trabalho. O presente estudo encontra-se integrado no projecto “Mapeamento de bancos de pesca algarvios (PescaMap) do Programa Operacional Pesca 2007-2013 (Promar), co-financiado pelo Fundo Europeu das Pescas (FEP). O projecto conta com os apoios institucionais das câmaras dos oito concelhos do Barlavento algarvio (Vila do Bispo, Aljezur, Lagos, Monchique, Portimão, Lagoa, Silves e Albufeira) e da Cooperativa dos Armadores de Pesca do Barlavento CRL (BarlaPescas). O projecto teve em primeiro lugar como principal propósito, produzir mapas dos principais bancos de pesca da frota do cerco e da frota artesanal. Em segundo lugar, o grupo de investigação do CCMAR comprometeu-se a inventariar a biodiversidade marinha de duas importantes zonas subtidais da costa Algarvia, ambas localizadas no Parque Marinho do Sudoeste Alentejano e Costa Vicentina: uma na costa ocidental que incluiu as Pedras da Agulha e da Carraça e a costa norte adjacente à Praia da Arrifana (concelho de Aljezur) e outra na costa sul, entre a ponta da Piedade e a praia do Barranco (concelhos de Lagos e de Vila do Bispo).
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Introducción Desde el punto de vista tradicional de que el maíz fue la piedra angular de la civilización prehispánica de los mayas de las tierras bajas puede ser erróneo. Investigaciones previas no tomaron en cuenta la posición geográfica peninsular de Yucatán y la riqueza de los recursos marinos disponibles. En este ensayo se examina la evidencia arqueológica, ecológica y documental para demostrar la utilización de subsistencia y religiosa de los recursos marinos, comparándolos con los datos para el recurso maíz y otros alimentos, Nos basamos preferentemente en el trabajo de F. W. Lange, de la Universidad de Winsconsin, ya que él presenta una serie de alternativas viables para suponer que los recursos marinos jugaron un papel determinante en la alimentación de la sociedad maya…
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No dia 29 de março de 2016, em Guapé, região sudoeste de Minas Gerais, às margens da represa de Furnas, foi realizado painel do Projeto Campo Futuro da Aquicultura sobre a tilapicultura em tanquerede. O projeto é uma parceria entre a Confederação da Agricultura e Pecuária do Brasil (CNA) e a Empresa Brasileira de Pesquisa Agropecuária (Embrapa). Este foi o primeiro painel de 2016, que aconteceu no Sindicato Rural de Guapé e contou com oito participantes, entre produtores e demais agentes da cadeia produtiva da tilápia no município. O projeto Campo Futuro da Aquicultura tem como objetivo levantar dados de Custo de Produção da Aquicultura em território nacional, a fim de subsidiar a criação de políticas públicas para o setor e auxiliar os piscicultores na administração de seus empreendimentos aquícolas.
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In this study we have analyzed 853 tokens of the vowel ?ller [e:], extracted from spontaneous speech fragments of 54 male Spanish speakers (North- Central Peninsular variety), each one recorded on two separate sessions. The speakers ? to be compared in a pairwise fashion ? were divided in four groups: 24 monozygotic (MZ) twins, 10 dizygotic (DZ) twins, 8 non-twin brothers and 12 unrelated speakers. From the extracted vowel ?llers, considered long enough for a glottal analysis (around 160 milliseconds), a vector of 68 glottal parameters was created. Our hypothesis that higher similarity values would be found in the intra-pair comparison of MZ twins than in DZ twins, brothers or unrelated speakers was con?rmed, which suggests that the glottal parameters under investigation are genetically in?uenced. This ?nding seems of great forensic importance, as a phonetic parameter is considered forensically robust provided that it exhibits large between-speaker variation while it remains as consistent as possible for each speaker (i.e. small within-speaker variation).
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Paracalanus quasimodo and Temora turbinata are two calanoid copepods prominent in the planktonic communities of the southeastern United States. Despite their prominence, the species and population level structure of these copepods is yet unexplored. The phylogeographic, temporal and phylogenetic structure of P. quasimodo and T. turbinata are examined in my study. Samples were collected from ten sites along the Gulf of Mexico and Florida peninsular coasts. Three sites were sampled quarterly for two years. Individuals were screened for unique ITS-1 sequences with denaturing gradient gel electrophoresis. Unique variants were sequenced at the nuclear ITS-1 and mitochondrial COI loci. Sampling sites were analyzed for pairwise community differences and for variances between geographic and temporal groupings. Genetic variants were analyzed for phylogenetic and coalescent topology. Paracalanus quasimodo is highly structured geographically with populations divided between the Gulf of Mexico, temperate Atlantic and subtropical Atlantic, in addition to isolation by distance. No significant differences were detected between the T. turbinata samples. Both P. quasimodo and T. turbinata are stable within sites over time and between sites within a sampling period, with two exceptions. The first was a pilot sample from Miami taken two years prior to the general sampling whose community showed significant differences from most of the other Miami samples. Paracalanus quasimodo had a positive correlation of Fst with time. The second was high temporal variability detected in the samples from Fort Pierce. Phylogenetically, both P. quasimodo and T. turbinata were in well supported, congeneric clades. Paracalanus quasimodo was not monophyletic, divided into two well-supported clades. Temora turbinata variants were in one clade with insignificant support for topology within the clade and very little intraspecific variation. Paracalanus quasimodo and T. turbinata populations show opposite trends. Paracalanus quasimodo occurs near shore and shows population structure mediated by hydrological features and distance, both geographic and temporal. The phylogeny shows two deeply divergent clades suggestive of cryptic speciation. In contrast, T. turbinata populations range further offshore and show little geographic or temporal structure. However, the low genetic variation detected in this region suggests a recent bottleneck event.
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As it is known (Haverkate 1994, Bravo 1996; 1998, Hernández 2002) in Spanish, interlocutors prefer to choose a more direct and assertive way of saying things, while in English the opposite, i.e. less direct and less assertive seems to be the norm. Therefore, from a cross-cultural perspective, there are direct speech acts that may be considered polite in peninsular Spanish while being considered impolite by members of another cultural group. This thesis presents some answers that might help learners of E/LE, within a British educational context, to avoid misunderstandings in communicative exchange. More specifically, this work studies learners’ perceptions of politeness in relation to the use of direct speech acts. An analysis is developed of the degree to which learners of E/LE, level A2-B1 according to Common European Framework of References for Languages (CEFR), perceive linguistic politeness when interlocutors choose a specific type of linguistic expression in conversations: the imperative mood. The term ‘imperative’ is defined semantically. Nevertheless, the imperative does not always suggest an imposition upon the desires of others. In the majority of occasions the pragmatic perception of the imperative could be inferred as an invitation, permission, warning and suggestion. Teaching pragmatic knowledge through direct speech acts offers learners the inevitable perception of bringing into the classroom linguistic politeness that influences the process of making-meaning and interpretation of the ilocutive act of request in the target language...
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La coyuntura vivida por la población rural en Castilla la Nueva durante la Edad Moderna no ha gozado de una producción historiográfica abundante. Las investigaciones sobre devenir del mundo agrario en este territorio tan vasto e importante del centro peninsular vivieron su apogeo hace varias décadas. No obstante, las contribuciones de los últimos años, relacionadas con la reconstrucción de magnitudes económicas y demográficas en varias zonas de la región, están resultando muy sugestivas. Toledo fue una de las ciudades castellanas más pobladas e importantes a comienzos de la Edad Moderna, y su catedral era la sede de una de las más poderosas archidiócesis de los reinos hispánicos. La citada urbe, como el resto de Castilla, conoció una fase expansiva en el siglo XVI y sufrió una depresión en el siglo XVII. La bibliografía general sobre la Ciudad Imperial y su territorio circundante en esta época es muy extensa, pero relativamente escasa en cuanto a estudios socioeconómicos de larga duración. El principal cometido de esta investigación es reconstruir y analizar la evolución de tres magnitudes coyunturales muy significativas en el Toledo moderno: la población, el coste de la vida y la renta de la tierra. La explotación de las fuentes eclesiásticas y civiles toledanas permite establecer varios objetivos concretos: 1) estudiar el movimiento de la población en la provincia toledana entre los siglos XVI y XIX a través de censos y registros bautismales; 2) construir un índice de precios para la ciudad de Toledo entre 1521 y 1650, que servirá como indicador de la evolución del nivel de vida de los toledanos y como deflactor de las magnitudes expresadas en términos corrientes; y 3) examinar los contratos agrarios y la trayectoria de la renta de la tierra entre 1521 y 1650, a partir de una muestra representativa de posesiones rurales de la catedral toledana. El balance demográfico en la provincia de Toledo fue especialmente pobre entre finales del siglo XVI y mediados del siglo XIX. La tendencia fue positiva en el Quinientos, pero la recuperación posterior al declive del Seiscientos fue exasperante; hasta la segunda mitad del siglo XVIII no se sobrepasarían los niveles máximos de finales del siglo XVI. Torrijos-‐‑La Sagra-‐‑ Toledo y La Mancha, comarcas entonces densamente pobladas y con buena dotación de recursos agrarios, participaron más en la fase depresiva. Por su parte, Talavera y La Jara-‐‑Montes, tuvieron un papel más destacado en la recuperación posterior...
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We analysed the viscera of 534 moles (Ta l p a spp.) from 30 of the 47 provinces of peninsular Spain, including 255 individuals of T. europaea from eight provinces, 154 individuals of T. occidentalis from 20 provinces, and 125 unidentified Ta l p a individuals from two provinces. We identified their helminth parasites and determined parasite species richness. We related parasite species richness with sampling effort using both a linear and a logarithmic function. We then performed stepwise linear regressions to predict mole parasite species richness from a small set of selected predictor variables that included sampling effort. We applied the resulting models to forecast T. euro p a e a, T. occidentalis, and Ta l p a spp. parasite species richness in all provinces with recorded host presence, assuming different levels of sampling eff o r t . F i n a l l y, we used partial regression analysis to partition the variation explained by each of the selected variables in the models. We found that mole parasite species richness is strongly conditioned by sampling effort, but that other factors such as cropland area and environmental disturbance have significant independent effects.
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Bonelli’s eagle, Hieraaetus fasciatus , has recently suffered a severe population decline and is currently endangered. Spain supports about 70% of the European population. We used stepwise logistic regression on a set of environmental, spatial and human variables to model Bonelli’s eagle distribution in the 5167 UTM 10 × 10 km quadrats of peninsular Spain. We obtained a model based on 16 variables, which allowed us to identify favourable and unfavourable areas for this species in Spain, as well as intermediate favourability areas. We assessed the stepwise progression of the model by comparing the model’s predictions in each step with those of the final model, and selected a parsimonious explanatory model based on three variables — slope, July temperature and precipitation — comprising 76% of the predictive capacity of the
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We analysed the viscera of 321 red foxes collected over the last 30 years in 34 of the 47 provinces of peninsular Spain, and identified their helminth parasites. We measured parasite diversity in each sampled province using four diversity indices: Species richness, Marg a l e f’s species richness index, Shannon’s species diversity index, and inverse Simpson’s index. In order to find geographical, environmental, and/or human-related predictors of fox parasite diversity, we recorded 45 variables related to topography, climate, lithology, habitat heterogeneity, land use, spatial situation, human activity, sampling effort, and fox presence probability (obtained after environmental modelling of fox distribution). We then performed a stepwise linear regression of each diversity index on these variables, to find a minimal subset of statistically significant variables that account for the variation in each diversity index. We found that most parasite diversity indices increase with the mean distance to urban centres, or in other words, foxes in more rural provinces have a more diverse helminth fauna. Sampling effort and fox presence probability (probably related to fox density) also appeared as conditioning variables for some indices, as well as soil permeability (related with water availability). We then extrapolated the models to predict these fox parasite diversity indices in non-sampled provinces and have a view of their geographical trends.
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O presente estudo trata da prática política nos diferentes espaços das monarquias ibéricas na primeira metade do século XVIII. Tendo como objecto de análise principal a correspondência de quatro municípios seleccionados como observatórios (Évora, Córdova, Ouro Preto e Quito), pretende-se conhecer com maior detalhe as variações desta mesma prática em função dos contextos. Partindo da ideia de que o modelo político-administrativo implementado na América seria, na essência, decalcado do peninsular, procura-se aqui entender as mutações resultantes desta transferência. Ao longo deste trabalho defender-se-á a ideia de que, apesar das semelhanças entre o aparelho burocrático metropolitano e americano, a prática política nos territórios extra-europeus revestia-se de um conjunto de especificidades que a diferenciavam de forma clara. Neste sentido, argumenta-se que estas mutações condicionavam igualmente quais seriam os interlocutores das coroas nas diferentes regiões. Ou seja, que uma mesma instância teria, nos territórios ultramarinos e peninsulares, graus de participação nos processos de negociação e articulação política consideravelmente diferentes, algo que de que os municípios são um bom exemplo. Para o efeito serão comparados aspectos como os ritmos da comunicação; o relevo de cada instância na comunicação com a coroa; o perfil dos indivíduos que, nos diferentes territórios, ocupavam os ofícios da malha administrativa; as dinâmicas de especialização de competências ou de concentração de funções num mesmo cargo; a conflitualidade institucional e a existência de iniciativas políticas de cariz supramunicipal; Abstract: This study deals with the political practice in different areas of the Iberian monarchies in the first half of the eighteenth century. The main object of study is the correspondence of four selected municipalities (Évora, Cordoba, Ouro Preto and Quito), and it aims to know in greater detail the variations of this same practice on different contexts. Starting from the idea that the political and administrative model implemented in America would, in essence, be modeled on the peninsular, the intent is to understand the changes resulting from this transfer. Throughout this work we will argue that, despite the similarities between the metropolitan and American bureaucracy, political practice in non-European territories possessed a set of characteristics that were very specific. In this sense, it is argued that these mutations would also determine which would be the interlocutors of the crowns in different regions. That is, if the same instance would, in the overseas and peninsular territories, have different levels of participation in the negotiation and in the political articulation processes, something that municipalities are a good example of. For this purpose, aspects such as the rhythms of communication; the importance of each instance in the correspondence with the crown; the profile of the individuals who, in different territories, occupied the offices of the administrative network; the dynamics of specialization or concentration of functions in the same position; the institutional conflicts and the existence of supramunicipal initiatives will be compared.
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Neste estudo pretende-se realizar uma análise da cidade de Évora e do seu mundo rural durante a Antiguidade Tardia. Através de estruturas funerárias e religiosas, e de alguns elementos arquitectónicos, pretendemos contribuir para o aumento de conhecimento da cidade de Évora e do seu território. Ao longo deste estudo irá realizar-se uma análise do cristianismo, dos mártires, dos concílios peninsulares, da cidade durante a época em estudo, da ascensão da Igreja e das aristocracias locais, do mundo rural e das estruturas funerárias e religiosas; Abstract: The Rural World and the Territory of Évora during Late Antiquity In this study it is pretended an analysis of the city of Évora and its rural world during Late Antiquity. Through funerary and religious structures, and some architectonic elements, we pretend to contribute for the augmentation of knowledge of the city of Évora and its territory. Thought this study it’s going to be done an analysis of Christianity, martyrs, the peninsular councils, the city during the studied epoch, the ascension of the Church and the local aristocracies, the rural world and the funerary and religious structures.
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This thesis contributes to the knowledge of temperate rocky shore ecology, with direct implications in the management and conservation of two important local marine resources that inhabit the very edge of subtidal and intertidal habitats on wave-swept rocky shores: the sessile filter feeding stalked barnacle Pollicipes pollicipes and the mobile keystone herbivore sea urchin Paracentrotus lividus. Research was conducted along gradients of wave exposure on rocky shores of Southern Europe. The abundance of P. lividus was four times higher in SW Portugal than in NW Italy. Most of the variation in urchin abundance occurred at small spatial scales, probably shaped by habitat complexity. In SW Portugal, sea urchin attachment forces while in burrows were measured and related to burrow shape, urchin size and habitat. Burrowing behaviour enhances sea urchin attachment force and might be an adaptive response to hydrodynamic stress. Abundance of P. pollicipes in SW Portugal is highly and positively related to wave exposure at local and regional scales. Predation and recruitment processes seem to be important drivers of these abundance patterns. A distribution model of P. pollicipes abundance in relation to wave exposure was developed for the SW coast of Portugal and might be used for improvement of its management and conservation. Growth of P. pollicipes was studied by applying a novel method using fluorescent calcein for marking and to estimate growth. Growth rate decreased with barnacle size and was highly variable amongst individuals, particularly in smaller barnacles. No effect of shore level on barnacle growth was detected. An assessment of the state of the fishery, conservation and management of the stalked barnacle in different regions of continental Portugal was made, highlighting an overall negative tendency of this state and recommending a change into a co-management system; Resumo: Viver no limite intertidal / subtidal: ecologia do percebe Pollicipes pollicipes e do ouriço-do-mar Paracentrotus lividus Esta tese contribui para o conhecimento da ecologia do litoral rochoso e tem implicações diretas na gestão e conservação de dois recursos marinhos locais que habitam o interface subtidal/intertidal de costas rochosas sujeitas a agitação marinha: o percebe Pollicipes pollicipes, animal séssil e filtrador e o ouriço-do-mar Paracentrotus lividus, animal móvel e herbívoro. Foram realizados vários estudos ao longo de gradientes de hidrodinamismo em costas rochosas do sul da Europa. A abundância de P. lividus foi quatro vezes superior no sudoeste de Portugal relativamente ao noroeste de Itália. Grande parte da variação na abundância de P. lividus ocorreu a pequenas escalas espaciais, provavelmente influenciada pela complexidade do habitat. A força com que o ouriço-do-mar se fixa ao substrato foi medida no terreno no sudoeste de Portugal, tendo esta sido relacionada com a forma da depressão que ocupa, o tamanho individual e o habitat. O comportamento escavador desta espécie aumenta a sua força de fixação ao substrato e poderá ser uma resposta adaptativa ao hidrodinamismo.. A abundância de P. pollicipes na costa sudoeste de Portugal, a diferentes escalas espaciais, está relacionada de forma positiva com a agitação marinha, e é influenciada pela predação e pelo recrutamento desta espécie. Foi desenvolvido um modelo de distribuição e abundância de P. pollicipes para esta costa baseado na relação com a agitação marinha, cujos resultados podem ser usados para melhorar a gestão e conservação deste recurso. Um novo método com recurso a calceina fluorescente foi desenvolvido para marcar percebes e estudar o seu crescimento. A taxa de crescimento diminuiu com o tamanho do animal, sendo altamente variável entre indivíduos, sobretudos nos de menores dimensões. O estado da apanha, conservação e gestão do percebe em diferentes regiões de Portugal Continental apresentou uma tendência global negativa, e recomenda-se uma alteração para um sistema de cogestão deste recurso.
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Furacões, Tornados, Sismos, Cheias, Secas, Erupções Vulcânicas, Tsunamis, entre outros, são fenómenos naturais que fazem parte do quotidiano do nosso planeta. Todos eles tem capacidade para devastarem repentinamente qualquer zona do planeta, deixando clara a nossa vulnerabilidade e fragilidade perante estes eventos extremos. É uma vulnerabilidade que em cada ano responde por milhares de mortos, feridos, desaparecidos e desalojados que em cada ano afetam a humanidade e destroem as economias e meios de subsistência. Há que sublinhar que, nas últimas décadas, milhões de pessoas perderam a vida em consequência destes desastres e o quadro tende a agravar-se como indicam as estimativas das Nações Unidas que apontam para que, nos próximos anos, estas catástrofes provoquem, perdas médias anuais, de 100.000 vidas e custos de 250.000 milhões de euros. Os sismos exercem claramente um impacto de grande gravidade, a curto e longo prazo, na vida económica e social das regiões. Os seus efeitos adversos afectam as infra-estruturas, a economia, o património material, natural e cultural, o ambiente e o turismo. Por outras palavras, os sismos têm um impacto negativo global na coesão económica e social das regiões. Em Portugal continental, a sismicidade histórica e instrumental revela-nos a existência de eventos geradores de destruição no território nacional. É uma sismicidade dispersa, reveladora da atividade de algumas das falhas cartografadas. É na região a sudoeste do Cabo de S. Vicente, entre o Banco de Gorringe e a costa oeste Portuguesa que se encontra uma das zonas sismogénicas mais ativas.
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Marine Protected Areas (MPAs) are increasingly being recommended as management tools for biodiversity conservation and fisheries. With the purpose of protecting the region's biodiversity and prevent the over exploitation of marine resources, in February 2011 the no-take MPAs of Ilha do Pessegueiro and Cabo Sard~ao were implemented within the “Parque Natural do Sudoeste Alentejano e Costa Vicentina “(PNSACV) Marine Park, south western coast of Portugal. As such, commercial and recreational fishing became prohibited in these areas. In order to evaluate the effects of these no-take MPAs, the structure of their fish assemblages and of adjacent control areas without fishing restrictions were studied between 2011 (immediately after implementation) and 2013 (two years after implementation). A total of 4 sampling campaigns were conducted (summer 2011, winter 2012, summer 2013 and winter 2013) using trammel nets and bottom trawl. Ichthyofaunal assemblages from the no-take MPAs (treatment) were compared with adjacent areas (controls) and changes evaluated as a function of time since protection. Results revealed significant increase in fish abundance after the implementation of the no-take MPAs. Furthermore, significant differences in the structure of fish assemblages (abundance and fish size) between protected and neighbouring areas were rapidly observed upon the implementation of the no-take MPAs. In addition, specimens of larger size occurred more frequently within Ilha do Pessegueiro no-take MPA in the last year of the study. Overall, despite the young age of these no-take MPAs, changes on the structure of their fish assemblages were already evident after only two years of protection, indicating that management measures such as MPA designation may play an important role to promote fisheries sustainable exploitation as well as to protect species with conservation interest.