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Invasive in many European countries, the American mink (Neovison vison) was introduced in Portugal in the late 1980’s, presumably escaping from Spanish fur farms close to the border. In spite of the biological richness of the invaded area, no study ever addressed the evolution of the invasion process. We aimed to investigate the current distribution and(More)
This system paper presents ULTRA, a light and compact system that applies augmented reality techniques to handheld PCs. ULTRA offers a comfortable and unobtrusive solution that integrates augmented reality functionalities with near-the-eye display, wireless connection and remote support over integrated mobile phone. The application areas of the ULTRA system(More)
Nowadays research institutions develop a significant amount of their activities financed by research grants and scholarships that sustain a constant human capital flow of temporary research labor. In this work and through the usage of Social Network Analysis we will study the impact of such policies in a research institution. This evaluation will be made(More)
Road barrier effect is among the foremost negative impacts of roads on wildlife. Knowledge of the factors responsible for the road barrier effect is crucial to understand and predict species' responses to roads, and to improve mitigation measures in the context of management and conservation. We built a set of hypothesis aiming to infer the most probable(More)
The stone marten is a widely distributed mustelid in the Palaearctic region that exhibits variable habitat preferences in different parts of its range. The species is a Holocene immigrant from southwest Asia which, according to fossil remains, followed the expansion of the Neolithic farming cultures into Europe and possibly colonized the Iberian Peninsula(More)
The Natura 2000 network is the centerpiece of European nature conservation policy but its effectiveness is challenged by ongoing landscape change. Our objective was to assess landscape connectivity between Natura 2000 sites in the biodiversity-rich western Mediterranean region. We used the wood mouse as a focal species with short-range dispersal and(More)
We report a panel of 12 microsatellite markers, including nine novel polymorphic loci isolated in the European polecat and three loci previously developed in closely related species, for genetic studies of polecats and ferrets. We tested the panel at fine geographic scales in polecat and domestic ferret populations of Britain and Portugal and at a broad(More)
This study reports the first set of microsatellite markers for the weasel (Mustela nivalis). We chose to isolate loci with tetranucleotide repeat motifs because they can be scored less ambiguously than the more commonly used dinucleotide loci. All 11 loci showed considerable variation within a population sample of 28 individuals from Portugal, with number(More)
Organ transplantation is a highly complex decision process that requires expert decisions. The major problem in a transplantation procedure is the possibility of the receiver's immune system attack and destroy the transplanted tissue. It is therefore of capital importance to find a donor with the highest possible compatibility with the receiver, and thus(More)