Percorrer por autor "Vieira, Joana"
A mostrar 1 - 2 de 2
Resultados por página
Opções de ordenação
- Drivers of degradation and other threatsPublication . Doblas Miranda, Enrique; Attorre, Fabio; Azevedo, João; Belen, Ismail; Alcalde, Elsa Enríquez; Freitas, Helena; Garavaglia, Valentina; Hódar, José Antonio; Iritas, Özlem; Karaaslan, Yakup; Khater, Carla; Koutsias, Nikos; Lahlou, Mehdi; Malkinson, Dan; Mansour, Sophie; Pettenella, Davide; Picard, Nicolas; Pino, Joan; Vieira, Joana; Vitale, MarcelloForests in the Mediterranean region have been subject to environmental changes since time immemorial. The region’s geography and location has made it a conducive environment between biomes, resulting in significant biodiversity. Since the beginning of human history, forests have adapted to pressures caused by human development, resulting in a complex socio-ecological balance. These pressures, however,have never been more extreme than they are today. Global change, understood as the wide range of global forces resulting from human activity, is affecting the entire Mediterranean basin (Doblas-Miranda et al., 2017). The threats caused by global change pose particular risks to the principal characteristics of Mediterranean forests and forested habitats described in previous chapters: 1. Mediterranean forests and shrublands are highly sensitive to global atmospheric changes due to their proximity to arid regions; 2. a long history of land-use change may result in more frequent and intense fires, water scarcity and land degradation and; 3. a singular biota is linked to a higher vulnerability to global change-induced extinction. Moreover, the wide range of socioeconomic conditions and government policies that characterize the Mediterranean basin affect the intensity and dynamics of these threats.This chapter outlines the different threats to Mediterranean forest landscapes, structured according to indirect and direct causes of degradation. The anthropogenic origin of current global changes directly affecting Mediterranean forests is considered the underlying cause of degradation. Although in many cases these human forces have a global impact (such as greenhouse gas emissions caused by climate change), this chapter will consider their effect on the Mediterranean region in particular. This chapter will also consider the consequences of direct and indirect threats and the combination of both.
- Microbial water quality of public swimming pool in the district of BragançaPublication . Pires, Bruno; Afonso, Andrea Luísa Fernandes; Gonçalves, Cátia; Vieira, Joana; Afonso, Eugénia; Nogueira, António José M.; Teixeira, CristinaThe poor water quality of recreational and rehabilitation pools,has been correlated to insufficient disinfection or human contamination, and can be a vehicle for transmitting diseasesto users. Because people with different characteristics attendpublic swimming pools with different purposes, the pool water quality control is essential to minimize hazards related tounsafe water.MethodsThis study was based on data collection of 144 samples between 2018 and 2020 in therapeutic and recreational pools(indoor and outdoor) in the Braganca district. The proportionof the number of bathers were estimated, as well as the microbial parameters: Total coliforms,Escherichia coli, enterococci, Pseudomonas aeruginosa, total Staphylococcus,Staphylococcus coagulase-positive and mesophilic microbial count. Results: The E. coli, enterococci and mesophilic microbial count werenot found in any sample. Unsafe pool water was mainly contaminated by both photogenicP. aeruginosa(6.3%) and total Sthaphylococcus (10.4%). Levels ofP. aeruginosaintherapeutic pools was greater than in recreational pools (indoor and outdoor) (10.5% vs 6.8% and 4.5%, respectively),while total Sthaphylococcus was absent in therapeutic pools and represent 13.6% and 10.6% of positivity in indoor and outdoors wimming pools, respectively. The bathers number medium of therapeutic, indoor and outdoor pools was 4.8, 3.4 and 6.9,respectively. Conclusions: Overall, the results endorse the good water quality of theseswimming pools, mainly by the absent of faecally-derivedbacteria. The presence of P. aeruginosain therapeutic pools canbe explained by the type of users, while the high number of bathers may promote the growth of some microorganisms,particularly in outdoor pools