The preservation of High Nature Value farmland (HNVf) is essential for meeting many of the new European Union (EU) Green Deal targets, as they correspond to production systems which respect the preservation of natural resources and support multiple ecosystem services. However, most of the farming systems on which HNVf rely cannot survive without support from public policies. Typically, these are low intensity a...
Cockles are amongst the most exploited bivalve species in Portugal, playing an important ecological and socioeconomic role in coastal ecosystems. Two sympatric species of cockles, Cerastoderma edule (Linnaeus, 1758) and Cerastoderma glaucum (Bruguiere, 1789-1792) may co-occur in estuaries and coastal lagoons in mixed populations along the European Atlantic coast, namely in Portugal, France and the United Kingdo...
The present work aims to identify changes in the macroinvertebrate community of the Tagus estuary (Portugal) due to improvements in water quality and to climate change. Data was collected over a period of 16 years (1998–2014) from different sites located along the estuarine gradient. The AZTI Marine Biotic Index (AMBI) was used to assess the ecological quality status based on benthic invertebrate communities an...
Em disciplinas de programação, os alunos devem estar sempre atentos e concentrados nos conceitos, sintaxe de código e na lógica dos algoritmos para que se possa tornar um bom programador. Uma grande quantidade de informações é apresentada aos alunos nas aulas, tornando assim muito importante a aplicação de exercícios práticos para melhorar o aprendizado em programa- ção. Afinal, segundo Piaget, o aprendizado es...
The present study focused on the use of benthic macroinfauna to assess the ecological quality status of two specific areas in the Tagus estuary (Portugal), after the improvement in the sanitation infrastructures discharging in those areas. The sampling campaigns were held in summer of 2009, 2010 and 2011 in a set of impact and control stations. Multivariate analysis was used to determine the evolution of spatia...
Sediment microbial communities are responsible for several ecosystem key-processes such as decomposition. However, these communities depend on aerobic respiration making them a source of CO2 to the atmosphere. Since sediments are a known important carbon sink, it becomes important to address the factors that modulate sediment respiration and therefore CO 2 efflux to the atmosphere. Therefore, the present work a...
texto completo: acesso restrito. p. 51–61; Submitted by Ana Valéria de Jesus Moura (anavaleria_131@hotmail.com) on 2012-03-12T18:32:16Z No. of bitstreams: 1 Blockade of 5-HT(3) receptors at septal area increase blood pressure in unanaesthetized rats.pdf: 740792 bytes, checksum: 264d5fdca076a624308c08798be42a59 (MD5); Made available in DSpace on 2012-03-12T18:32:16Z (GMT). No. of bitstreams: 1 Blockade of 5-HT(3...