Habitat differentiation between groups of Risso's dolphins as evidence of coastal nursery areas

26th Annual Conference of the European Cetacean Society, Galway, Ireland 26-28 March 2012.

Adam Smith on power and maritime trade

Copyright © 2014 The Pennsylvania State University, University Park, PA.

Efficiency of sampling methods and effort to assess arthropod diversity in Azorean native forests

The BALA project (Biodiversity of Arthropods of Laurisilva of the Azores) is a research initiative to quantify the spatial distribution of arthropod biodiversity in native forests of the Azores archipelago. Arthropods were collected using a combination of two techniques, targeting epigean (ground dwelling) and canopy (arboreal) arthropods: pitfall traps (with Turquin and Ethylene solutions) and beating samples (using the three most dominant plant species). A total of 109 transects distributed amongst 18 forest fragments in seven of the nine Azorean islands were used in this study. The performance of alternative sampling methods and effort were tested. No significant differences were found in the accumulated number of species captured whether an alternative method was used or whether another transect with similar effort was established in another location within the same fragment. A combination of Ethylene and Turquin traps captured more species per individual, Turquin and beating captured more species per sample, and Turquin captured more species per unit time. An optimization exercise was performed and we found that the protocol applied during recent years is very close to optimal, allowing its future replication with confidence. The minimum combinations of sampling effort and methods, in order to monitor or to inventory diversity, taking into account different proportions of sample completeness are discussed.

Dispersão de preços e concorrência no mercado de transporte aéreo intraeuropeu : uma análise empírica

Dissertação de Mestrado em Ciências Económicas e Empresariais.

Cultura política, actores e discursos nos alvores do Liberalismo : revisitar a revolução de 1821 nos Açores

O presente estudo consiste numa análise da cultura política no início do Liberalismo em Portugal, centrada sobre os deputados micaelenses nas Cortes Portuguesas que emergiram da revolução liberal de 1820 e, por outro lado, numa revisitação da revolução de 1821 em Ponta Delgada. Nesse contexto, a proposta de projecto apresentada por um dos deputados que visava a abolição dos vínculos na ilha de São Miguel e nos Açores foi o mote para esta dissertação. Visitamos a conjuntura de outro espaço atlântico na mesma época, a Madeira, de modo a conduzirmos uma avaliação comparativa, mantendo o quadro atlântico em perspectiva. Recorremos, por fim, à biografia de um deputado para obtermos uma escala de observação mais próxima da dinâmica política.

Avaliação da necessidade em cal em andossolos da ilha Terceira - Açores

Dissertação de Mestrado, Engenharia Agronómica, 16 de Outubro de 2015, Universidade dos Açores.