152 documents found, page 1 of 16
Invasive dynamics of the signal crayfish Pacifastacus leniusculus in a protecte...
Carvalho, Francisco; Alves, Henrique; Pascoal, Cláudia; Castro, Paulo; Miranda, Fernando Jorge Veloso; Teixeira, Amílcar; Cássio, FernandaInvasive species have been drivers of biodiversity loss and functional changes in aquatic ecosystems, including in protected areas. Therefore, monitoring population invasion dynamics and biological traits is fundamental to better understand their ecological and economic impacts and for management actions development. We followed signal crayfish (Pacifastacus leniusculus) invasion in Rabaçal River upper reach at...
Non-interactive effects drive multiple stressor impacts on the taxonomic and fu...
Lourenço, J.; Gutiérrez-Cánovas, C.; Carvalho, F.; Cássio, Fernanda; Pascoal, Cláudia; Pace, GiorgioFreshwaters are considered among the most endangered ecosystems globally due to multiple stressors, which coincide in time and space. These local stressors typically result from land-use intensification or hydroclimatic alterations, among others. Despite recent advances on multiple stressor effects, current knowledge is still limited to manipulative approaches minimizing biological and abiotic variability. Thus...
Antagonistic potential of Wickerhamomyces anomalus against phytopathogens causi...
Amorim-Rodrigues, Mariana; Cássio, Fernanda; Lucas, CândidaOlive Anthracnose (OA) and Chestnut Ink Disease (CID), caused by eukaryotic organisms such as fungi and oomycetes, pose significant challenges to agricultural production, causing severe yield losses and reduced quality of harvested products. Currently, chemical pesticides are widely used to control these pathogens. However, this approach can be expensive and ineffective, and may have detrimental environmental a...
Yeasts as new powerful bio-tools for sustainable agriculture: Biocontrol of pla...
Lucas, Cândida; Cássio, FernandaCrop diseases caused by fungi or oomycetes are responsible for significant losses in food production worldwide, and are increasingly recognized as a global threat to food security. This crisis derives from concurring factors, which include agricultural practices, global trade and climate change, all of which synergistically impact plants’ fitness, critical to the maintenance of function and services of agro-eco...
Combined per-capita and abundance effects of an invasive species on native inve...
Carvalho, Francisco; Pascoal, Cláudia; Cássio, Fernanda; Teixeira, Amílcar; Sousa, Ronaldo GomesInvasive alien species (IAS) are leading to the homogenisation of taxonomic and functional biodiversity, with negative consequences for key ecosystem processes in fresh water. Invasive signal crayfish (Pacifastacus leniusculus) is expected to disrupt detritus-based food webs by affecting leaf breakdown and/or by decreasing invertebrate density and diversity through predation. The combination of per-capita and a...
Antiparasitic potential of agrochemical fungicides on a non-target aquatic mode...
Machado, Cláudia; Cuco, Ana P.; Cássio, Fernanda; Wolinska, Justyna; Castro, Bruno B.Pesticides are a major anthropogenic threat to the biodiversity of freshwater ecosystems, having the potential to affect non-target aquatic organisms and disrupt the processes in which they intervene. Important knowledge gaps have been recognised concerning the ecological effects of synthetic fungicides on non-target symbiotic aquatic fungi and the ecological processes where they intervene. The goal of this wor...
Remote sensing indicators to assess riparian vegetation and river ecosystem health
Pace, Giorgio; Cánovas, Cayetano Gutiérrez; Henriques, R.; Carvalho-Santos, Claudia; Cássio, Fernanda; Pascoal, CláudiaEnvironmental managers need information to quickly detect which stressor combinations should be addressed to reverse river degradation across large study areas. The pivotal role of riparian vegetation in regulating thermal regimes and inputs of light, nutrients and organic matter has made it a major target of stressor-mitigation and conservation actions. However, due to the dendritic and extensive nature of riv...
Temperature and interspecific competition alter the impacts of two invasive cra...
Carvalho, Francisco André Costa; Sousa, Ronaldo Gomes; Cássio, Fernanda; Pascoal, CláudiaClimate change is expected to alter impacts of invasive alien species (IAS). As omnivores and ectotherms, invasive crayfish species (ICS) can be particularly influenced by altered thermal regimes with possible impacts on native species and key ecosystem processes, such as leaf-litter breakdown. We performed a controlled study using a multi-trophic approach to assess the individual and combined effects between t...
Plastic interactions with pollutants and consequences to aquatic ecosystems: wh...
Cássio, Fernanda; Batista, Daniela; Pradhan, ArunavaPlastics are a group of synthetic materials made of organic polymers and some additives with special characteristics. Plastics have become part of our daily life due to their many applications and uses. However, inappropriately managed plastic waste has raised concern regarding their ecotoxicological and human health risks in the long term. Due to the non-biodegradable nature of plastics, their waste may take s...
Comparative performance and ecotoxicity assessment of Y2(CO3)3, ZnO/TiO2, and F...
Salazar, H.; Martins, P. M.; Batista, Daniela Miranda; Shejale, K. P.; Sharma, R. K.; Krishnapriya, R.; Ferdov, S.; Botelho, GabrielaThe application of nanomaterials to remove arsenic (As) from the water represents one of the 21 most promising remediation methods nowadays. In this study, three active materials, including 22 Y2(CO3)3), ZnO/TiO2, and Fe3O4, with different structural and morphological properties, were 23 evaluated for their As(V) adsorption capacity in contaminated water. Thus, the adsorption 24 behaviour was evaluated, includi...