2 resultados para road network

em Repositório Científico da Universidade de Évora - Portugal


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A UE tem manifestado em matéria de turismo, a necessidade de serem criados novos produtos turísticos, com base na oferta total e única de cada uma das localidades. Se existirem recursos naturais, recursos culturais, bem como uma oferta de serviços complementares que incluam uma rede viária de fácil acesso e aeroporto nas imediações, alojamento e restauração existem as condições necessárias para desenvolver (novos) produtos locais. Viana do Castelo, cidade do nordeste português localizada no topo do país, reúne os recursos naturais, culturais e os serviços descritos atrás, razão pela qual foi alvo da concepção de um guia turístico virtual, com o objectivo de desenvolver e promover os seus produtos (turísticos) na comunidade local. Denominado "MWC", Museu Virtual Viana do Castelo, o guia turístico virtual estará escrito em português. Pretende ser traduzido noutros idiomas, inclusive para língua gestual e Braille. ABSTRACT; EU defends the creation of new touristic products, underlining each country has its own potentialities. To create new touristic products, mean to develop the local opportunities there are to be worked out. If there are natural resources, cultural resources, as well services supported by a good road network including airport nearby, several kind of accommodation and catering services it is possible to create new (local) products. Viana do Castelo is a Portuguese city, located in the Norwest top of Portugal. It meets all the resources mentioned above and other more, the reason why it is being conceived a virtual touristic guide, to develop and to promete its products among its local community. Named "MWC”, the Viana do Castelo Virtual Museum will be written in Portuguese language and later on in another language, sign languages and Braille.

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Context Understanding connectivity patterns in relation to habitat fragmentation is essential to landscape management. However, connectivity is often judged from expert opinion or species occurrence patterns, with very few studies considering the actual movements of individuals. Path selection functions provide a promising tool to infer functional connectivity from animal movement data, but its practical application remains scanty. Objectives We aimed to describe functional connectivity patterns in a forest carnivore using path-level analysis, and to explore how connectivity is affected by land cover patterns and road networks. Methods We radiotracked 22 common genets in a mixed forest-agricultural landscape of southern Portugal. We developed path selection functions discriminating between observed and random paths in relation to landscape variables. These functions were used together with land cover information to map conductance surfaces. Results Genets moved preferentially within forest patches and close to riparian habitats. Functional connectivity declined with increasing road density, but increased with the proximity of culverts, viaducts and bridges. Functional connectivity was favoured by large forest patches, and by the presence of riparian areas providing corridors within open agricultural land. Roads reduced connectivity by dissecting forest patches, but had less effect on riparian corridors due to the presence of crossing structures. Conclusions Genet movements were jointly affected by the spatial distribution of suitable habitats, and the presence of a road network dissecting such habitats and creating obstacles in areas otherwise permeable to animal movement. Overall, the study showed the value of path-level analysis to assess functional connectivity patterns in human-modified landscapes.