23 documents found, page 1 of 3
Enhancing water reuse at a local scale: a constructed wetland case study
Magalhães, J.; Dolbeth, M.; Arenas, F.; Pereira, S.; Tsiamis, G.; Ntougias, S.; Calheiros, C.Constructed Wetlands (CW), as biological treatment systems, mimic the phytoremediation processes found in natural wetlands in an optimized configuration for the improvement of the water quality. They are considered nature-based solutions (NBS) that may support decentralized wastewater treatment providing several ecosystem services, including enhancing water availability and reducing water-related risks. The pre...
Enhancing water reuse at a local scale: a constructed wetland case study
Magalhães, J.; Dolbeth, M.; Arenas, F.; Pereira, S. I. A.; Tsiamis, G.; Ntougias, S.; Calheiros, C.What are Constructed Wetlands? Constructed wetlands (CW) are engineered systems that are inspired by and mimicking processes (physical, biological, and chemical) and functions that occur in natural wetlands. Comprised of several components, impermeabilization liners and substrate, and as the key elements the plants and their associated microorganisms. They were thought primarily for wastewater treatment but now...
Realistic scenarios of environmental disturbance lead to functionally important...
Dolbeth, M.; Crespo, D.; Leston, S.; Solan, M.Changes in community structure concurrent with environmental forcing often form a precursor to changes in species diversity, and can have substantive consequences for ecosystem functioning. Here, we assess the effects of altered levels of evenness that are representative of different levels of eutrophication and changes in salinity associated with altered precipitation patterns, on the mediation of nutrient rel...
Ensemble forecasting of Corbicula fluminea worldwide distribution: Projections ...
Gama, M.; Crespo, D.; Dolbeth, M.; Anastácio, P.M.Global biodiversity is at risk owing to climate change, and freshwater ecosystems are expected to suffer the most. In recent years niche-based models (NBMs) have been used to predict species distribution and are an important tool for conservation and management of aquatic ecosystems. In this work, the current and future climatic suitability areas of the invasive species Corbicula fluminea, which has known adver...
Effect of the alien invasive bivalve Corbicula fluminea on the nutrient dynamic...
Coelho, J. P.; Lillebø, A. I.; Crespo, D.; Leston, Sara; Dolbeth, M.The main aim of this study was to evaluate the impact of the alien invasive bivalve Corbicula fluminea (Müller, 1774) in the nutrient dynamics of temperate estuarine systems (oligohaline areas) under climate change scenarios. The scenarios simulated shifts in climatic conditions, following salinity (0 or 5) and temperature (24 or 30 °C) changes, usual during drought and heat wave events. The effect of the indiv...
Effect of the alien invasive bivalve Corbicula fluminea on the nutrient dynamic...
Coelho, J. P.; Lillebø, A.I.; Crespo, D.; Leston, S.; Dolbeth, M.The main aim of this study was to evaluate the impact of the alien invasive bivalve Corbicula fluminea (Müller, 1774) in the nutrient dynamics of temperate estuarine systems (oligohaline areas) under climate change scenarios. The scenarios simulated shifts in climatic conditions, following salinity (0 or 5) and temperature (24 or 30 °C) changes, usual during drought and heat wave events. The effect of the indiv...
Predicting global habitat suitability for Corbicula fluminea using species dist...
Gama, M.; Crespo, D.; Dolbeth, M.; Anastácio, Pedro M.tNiche-based models (NBMs) are increasingly being used to predict the biological distribution of species,as well as the importance of different environmental variables on their habitat adequability. Here, weinvestigate the reliability of these models in predicting habitat suitability for Corbicula fluminea, an impor-tant freshwater bivalve invasive species. In order to determine the influence of topographic vs....
Long-term functional changes in an estuarine fish assemblage
Baptista, J.; Martinho, F.; Nyitrai, D.; Pardal, M. A.; Dolbeth, M.The functional diversity of the fish assemblages of the Mondego estuary was studied for a discontinuous 30-year period (1988–2012). During this time, hydrological changes occurred due to man-induced alterations and weather extremes. These changes led to alterations in the structure and function of the fish community. Species richness and functional richness decreased over time and the fish community started to ...
Mercury accumulation and tissue-specific antioxidant efficiency in the wild Eur...
Mieiro, C. L.; Dolbeth, M.; Marques, T. A.; Duarte, A. C.; Pereira, M. E.; Pacheco, M.The main goal of this study was to assess both mercury (Hg) accumulation and organs' specific oxidative stress responses of gills, liver and kidney of Dicentrarchus labrax with emphasis on seasonality. Fish were collected in cold and warm periods in three stations: reference, moderated and highly contaminated sites. Our results showed that seasonal factors slightly influenced Hg accumulation between year period...
Recovery trends of Scrobicularia plana populations after restoration measures, ...
Verdelhos, T.; Cardoso, P. G.; Dolbeth, M.; Pardal, M. A.The Mondego estuary (Portugal) went through different ecological scenarios over the last decades. An eutrophication process led to a decline in the ecosystem quality. The ensuing restoration plan resulted into a gradual ecological recovery, which was impaired by the occurrence of successive extreme climate events that affected dynamics and productivity of key species. In this study we assess the response of the...