59 documents found, page 1 of 6
Local environment and fragmentation by drought and damming shape different comp...
Martelo, J.; Gkenas, C.; Ribeiro, D.; Alves, M.J.; Ribeiro, F.; Cucherousset, J.; Gago, João; Magalhães, M.F.Pool refuges are critical for maintaining stream fish diversity in increasingly intermittent streams. Yet, the patterns and drivers of beta diversity of native and non-native fish in pool refuges remain poorly known. Focusing on Mediterranean streams, we decomposed beta diversity of native and non-native fish into richness difference (RichDiff) and species replacement (Repl), and local (LCBD, LCBDRichDiff and L...
Livro Vermelho dos Peixes Dulciaquícolas e Diádromos de Portugal Continental
Magalhães, M.F.; Amaral, S.D.; Sousa, M.; Alexandre, C.M.; Almeida, P.R.; Alves, M.J.; Cortes, R.; Farrobo, A.; Filipe, A. F.; Franco, A.; Jesus, J.As Listas Vermelhas de Espécies Ameaçadas da União Internacional para a Conservação da Natureza constituem indicadores importantes do estado da biodiversidade, e são amplamente utilizadas para informar e estruturar as atividades de conservação. Estas Listas, publicadas em Livros Vermelhos, resultam de um rigoroso processo de avaliação, baseado num sistema de categorias e critérios de diagnóstico do risco de ext...
Urinary biomonitoring in firefighters: baseline data of polycyclic aromatic hyd...
Barros, B.; Oliveira, M.; Paiva, M.; Fernandes, A.; Alves, S.; Vaz, J.; Esteves, F.; Slezakova, K.; Alves, M.J.; Madureira, J.; Pereira, M.C.Polycyclic aromatic hydrocarbons (PAHs) are among the most relevant pollutants in the firefighting context and urine the most straightforward and interesting matrix for biomonitoring. Recent studies have found elevated levels of PAH metabolites in firefighters in comparison to the general population. Since Portuguese firefighters are poorly characterized, the aim of this study was to determine the baseline data...
Widespread hybridization between Invasive bleak (Alburnus alburnus) and Iberian...
Curto, M.; Morgado-Santos, M.; Alexandre, C.M.; Alves, M.J.; Gante, H.F.; Gkenas, C.; Medeiros, J.P.; Pinheiro, P.J.; Almeida, P.R.; Magalhães, M.F.Hybridization between native and nonnative fish species is a major conservation issue, especially in ecosystems with high levels of endemism, such as Iberian streams. To date, hybridization with the invasive bleak Alburnus alburnus has been reported for the Iberian chub Squalius alburnoides and S. pyrenaicus and in scattered locations only. However, the bleak is spreading in the region, potentially increasing t...
Widespread hybridization between Invasive bleak (Alburnus alburnus) and Iberian...
Curto, M.; Morgado-Santos, M.; Alexandre, C.M.; Alves, M.J.; Gante, H.F.; Gkenas, C.; Medeiros, J.P.; Pinheiro, J.P.; Almeida, P.R.; Magalhães, M.F.Hybridization between native and nonnative fish species is a major conservation issue, especially in ecosystems with high levels of endemism, such as Iberian streams. To date, hybridization with the invasive bleak Alburnus alburnus has been reported for the Iberian chub Squalius alburnoides and S. pyrenaicus and in scattered locations only. However, the bleak is spreading in the region, potentially increasing t...
Evidence of genetic segregation among meagre (Argyrosomus regius) Atlantic spaw...
Almeida, R.; Mateus, C.S.; Alves, M.J.; Marques, J.P.; Pereira, J.; Prista, N.; Cabral, H.; Almeida, P.R.; Quintella, B.R.The meagre Argyrosomus regius, one of the largest sciaenidae in the world, is a valuable resource for fisheries and aquaculture. Despite its socioeconomic relevance, knowledge about population dynamics and wild stocks is still scarce, and conservation risks are associated with overexploitation. Two genetic distinct groups, one in the North Atlantic Ocean and one in the eastern Mediterranean Sea, were identified...
Mutation rate of SARS-CoV-2 and emergence of mutators during experimental evolu...
Amicone, M.; Borges, V.; Alves, M.J.; Isidro, J.; Zé-Zé, L.; Duarte, S.; Gomes, J. P.; Gordo, I.Background and objectives: To understand how organisms evolve, it is fundamental to study how mutations emerge and establish. Here, we estimated the rate of mutation accumulation of SARS-CoV- 2 in vitro and investigated the repeatability of its evolution when facing a new cell type but no immune or drug pressures. Methodology: We performed experimental evolution with two strains of SARS-CoV-2, one carrying the ...
Occupational Exposure of Firefighters in Non-fire Settings
Slezakova, K.; Esteves, F.; Vaz, J.; Alves, M.J.; Madureira, J.; Costa, S.; Fernandes, A.; Teixeira, João Paulo; Morais, S.; Pereira, M.C.Freshwater pollution is a huge concern. A study aiming to evaluate physico-chemical characteristics, microbiota, occurrence of two groups of persistent environmental pollutants with similar chemical properties (polycyclic aromatic hydrocarbons- PAHs and microplastics - MPs) in Alqueva's surface water was performed during 2021.
West Nile virus transmission potential in Portugal
Lourenço, J.; Barros, S.C.; Zé-Zé, L.; Damineli, D.S.C.; Giovanetti, M.; Osório, H.C.; Amaro, F.; Henriques, A.M.; Ramos, F.; Luís, T.; Duarte, M.D.It is unclear whether West Nile virus (WNV) circulates endemically in Portugal. Despite the country’s adequate climate for transmission, Portugal has only reported four human WNV infections so far. We performed a review of WNV-related data (1966–2020), explored mosquito (2016–2019) and land type distributions (1992–2019), and used climate data (1981–2019) to estimate WNV transmission suitability in Portugal. Se...
Combined detection of molecular and serological signatures of viral infections:...
Albuquerque, D. C.; Martins, V. C.; Fernandes, E.; Zé-Zé, L.; Alves, M.J.; Cardoso, S.The recent worldwide spread of viral infections has highlighted the need for accurate, fast, and inexpensive disease diagnosis and monitorization methods. Current diagnostics tend to focus either on molecular or serological testing. In this work we propose a dual detection assay approach for viral diseases, where both serological and molecular assays are combined in a single analysis performed on a magnetoresis...