Browsing by Issue Date, starting with "2011-09"
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- The use of Biotopes in Conservation and Management of Marine Protected Areas.Publication . Dal Molin, Juliana; Álvaro, Nuno V.; Neto, Ana I.
- Integrating biological data with substrate and bathymetric information in MPAs in of oceanic islandsPublication . Álvaro, Nuno V.; Prestes, Afonso L.; Dal Molin, Juliana; Neto, Ana I.
- An index based on seaweed communities to monitor coastal ecological quality in Macaronesia.Publication . Wallenstein, Francisco; Neto, Ana I.; Patarra, Rita F.; Prestes, Afonso L.; Álvaro, Nuno V.; Rodrigues, Armindo; Wilkinson, Martin
- Biogeographical kinetics on an island volcano (Capelinhos, Azores) : fast colonisation rates and dominance of arthropod exotic speciesPublication . Fattorini, Simone; Borges, Paulo A. V.1. The aim of this paper was to investigate the arthropod colonisation of a recently erupted volcano in the framework of a general model of colonisation kinetics. 2. We analysed the diversity of arthropod communities at three locations on Faial Island (Azores) using a well-defined disturbance gradient: (i) a site that is new land added by the eruption of Capelinhos Volcano of 1957; (ii) a site moderately affected by this eruption; and (iii) a pristine site not affected.We calculated the recolonisation times at the disturbed sites using species richness at the undisturbed site as an equilibrium value (last erupted 900–1000 years ago). 3. Species with different distributional ranges (endemic, native non-endemic and introduced) have different colonisation kinetics. Introduced exotic species were particularly rapid in colonising the erupted volcano, reaching a number of species greater than that observed in the undisturbed area. By contrast, native non-endemic species had more difficulty in recolonising the erupted area, and no endemic has reached it. The volcano community is dominated by a few species with high abundance and shows low richness and strong dominance in comparison with the undisturbed community. The moderately disturbed site supports a rich and well-balanced arthropod community. 4. Although the erupted volcano has species richness even slightly higher than the undisturbed site, this is a consequence of the high colonisation ability of introduced species, and its arthropod community is strongly disharmonic.
- MPA management in the Azores: integrating biological, depth and geological data.Publication . Álvaro, Nuno V.; Wallenstein, Francisco; Prestes, Afonso L.; Dal Molin, Juliana; Neto, Ana I.
- Potencialidade de conversão das explorações de bovinos de leite na ilha do Faial para o modo de produção biológicoPublication . Branco, Ana I.; Simbine, Lázaro; Cerqueira, Joaquim O.; Borba, Alfredo Emílio Silveira de; Araújo, José P.O presente trabalho tem como objectivo principal avaliar a potencialidade de conversão de explorações de bovinos de leite para o modo de produção biológico (MPB).
- Carrying capacity of two official hiking trails, located in Lagoa do Fogo (Azores, Portugal)Publication . Escudero Aznar, Pablo; Cunha, Regina Tristão da; Ventura, Maria A.The Autonomous Region of the Azores has become a reference in the field of green tourism due to factors like the diversity of its fauna and flora, the awesome sightseeing spots, the mild weather and the vast range of different tourist activities that can be practiced there. One of the most usual and important activities developed in São Miguel island, where this study was conducted, is hiking along the trails of the protected area of Lagoa do Fogo. Overall there are many official and non-official trails embracing different degrees of difficulty, lengths and environments. The aim of this research was to calculate the carrying capacity for the two official trails that cross the protected area of Lagoa do Fogo. The tracks evaluated were: PR32SMI: Monte Escuro – Vila Franca do Campo (temporarily closed). PRC2SMI: Praia – Lagoa do Fogo. Cifuentes´ methodology was used to evaluate the trails’ carrying capacity: Using natural and social factors to calculate the Physical Carrying Capacity we obtained an initial capacity of 20925 visitors/day for PR32SMI, and 18600 for PRC2SMI. After applying some correction factors, we get the Real Carrying Capacity that also needs to be modified in order to achieve the Effective Carrying Capacity, related to the management capacity of the area. The final aim of the research was to get a maximum number of visi¬tors that can daily enjoy the trails, avoiding the degradation of the paths and its surroundings. Our results pointed to 1058 and 1517 visitors/day respectively, far from the first calculations we made. We have also included some actions and conservation measures, in order to improve the quality of the tracks.
- Dating violencePublication . Caldeira, Suzana Nunes; Berenguel, Filipa; Raposo, Maria JoséCompreender a violência nas relações de namoro contribui para desmistificar as crenças dos jovens e prevenir este problema que transcende culturas. Comparando uma amostra açoriana, com uma amostra americana verificou-se uma maior expressão de violência entre os açorianos.
- Designing a survey protocol to overcome the Wallacean shortfall: a working guide using bryophyte distribution data on Terceira Island (Azores)Publication . Aranda, Silvia C.; Gabriel, Rosalina; Borges, Paulo A. V.; Azevedo, Eduardo B.; Lobo, Jorge M.The increasing availability of open access data on species occurrences is leading researchers to generate more hypotheses about patterns of species distributions. However, when all of this information is mapped onto a particular geographical scale, gaps usually appear due to lack of knowledge and sampling spatial bias (the so-called Wallacean shortfall). To overcome these problems as efficiently as possible, field surveys should be designed after distinguishing well-surveyed places from those with incomplete inventories in order to carry out the extra survey effort in those areas not represented environmentally and spatially by the well-surveyed places. This procedure requires (1) gathering, cleaning and standardizing data; (2) selecting environmental variables that are important for the group considered according to field experience and the literature; and (3) making statistical decisions about the number and location of areas that should be surveyed according to the available resources. Here, we summarize most concepts and procedures devoted to the evaluation of biodiversity data, offering some general recommendations on how to use them for optimizing new survey designs. As a practical guide for potential users, we provide an example describing its application to a comprehensive database on bryophyte distribution on Terceira Island (Azores, Portugal). More than 8,000 bryophyte records were gathered, but (i) less than half of the island area has been surveyed at least once and (ii) less than 1% of these have reliable inventories (placed on the few remnants of laurel forests that have been traditionally better surveyed). Nevertheless, surveying just 15 additional localities evenly distributed across the major environmental regions and habitats on Terceira Island seems to represent the existing environmental diversity. We believe that the survey protocol presented here for bryophytes of Terceira Island could be flexibly applied to other taxa or areas.