CIMO - Artigos em Proceedings Não Indexados à WoS/Scopus
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Percorrer CIMO - Artigos em Proceedings Não Indexados à WoS/Scopus por Objetivos de Desenvolvimento Sustentável (ODS) "04:Educação de Qualidade"
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- Enhancing rangeland management through technology: a case study of sheep and goat grazing in Montesinho Natural ParkPublication . Castro, José; Fellahi, Mohamed; Benmellouk, Issam; Castro, Marina; Yessef, MohammedThe advent of advanced technologies offers unprecedented opportunities to improve the sustainability and resilience of rangeland management. This study examines the application of Global Navigation Satellite Systems (GNSS) in monitoring and optimizing the shepherding journeys of sheep and goat pastoralists throughout the rangelands of Montesinho Natural Park, Portugal. Two distinct flocks—sheep and goats—were each equipped with a GNSS collar to monitor their routes across seasons and landscapes from April 2022 to March 2023. The study yielded 186 grazing journeys for the sheep flock and 232 for the goats. The data collected were subsequently analyzed using Geographic Information Systems (GIS) and Principal Component Analysis (PCA). These analytical methods were employed to discern patterns and correlations between grazing journeys and environmental variables, including altitude, topographic wetness, and land use types. The land use types examined encompassed orchards, oak forests, and shrublands. The study elucidates marked discrepancies in the shepherding landscapes of the two species under investigation. The flock of sheep exhibited a distinct preference for agroforestry zones, demonstrating heightened sensitivity to climatic fluctuations, particularly during extreme temperatures. In such conditions, the sheep sought refuge in oak woods, chestnut groves, and riparian forests. Conversely, the goats demonstrated a greater utilization of rangelands and forestlands, indicative of their superior adaptability to varying environmental conditions. Additionally, seasonal variations were pronounced, with both species modifying their grazing strategies in response to the dynamic environmental changes.
- Fármacos en el agua: Sensibilización para la mitigación de sus impactos en los ecosistemas y en la sociedadPublication . Voznakova, Alena; Canle, Moisés; Geraldes, Ana MariaLa creciente presencia de residuos farmacéuticos en los ecosistemas acuáticos ha emergido como un problema ambiental significativo y poco visibilizado. Fármacos de uso común, como antibióticos, analgésicos y betabloqueantes, ingresan al ambiente a través de aguas residuales, desechos industriales y prácticas inadecuadas de disposición de medicamentos, persistiendo en cuerpos de agua superficiales y subterráneos. Los sistemas de tratamiento de aguas convencionales no están diseñados para eliminar completamente estos compuestos, lo que provoca una acumulación gradual con efectos adversos tanto en la biodiversidad y los ecosistemas asociados. Este artículo aborda los efectos de los fármacos en organismos acuáticos, tales como la toxicidad combinada y el desarrollo de resistencias antimicrobianas. Además, se explora el impacto a largo plazo en los ecosistemas, y los riesgos asociados para la salud humana. Finalmente, se subraya el rol fundamental de la educación ambiental en la creación de conciencia pública sobre los impactos de los residuos farmacéuticos y la importancia de promover cambios en los comportamientos sociales.
- FTIR coupled with chemometrics as a non-invasive tool for PDO olive oils’ discriminationPublication . Lamas, Sandra; Ruano, Daniela; Rodrigues, Nuno; Barreiro, Filomena; Peres, António M.; Pereira, José AlbertoQuality schemes protect the diversity of traditional European foods, such as the Protected Designation of Origin (PDO) and the Protected Geographical Indication (PGI). Only the olive oils from extra virgin and virgin commercial categories can be labelled with a PDO or PGI. In Portugal, currently, there are six PDOs. Olive oils labelled as PDO present a superior chemical-sensory quality. Nevertheless, from a commercial point of view it is of paramount importance to be able to identify them according to the correct label, avoiding fraud and ensuring the consumer regarding the exact origin of the purchased oil. Non-invasive and fast techniques, like Fourier transform infrared spectroscopy (FTIR), have been applied to assess olive oil origin and to detect fraud and adulterations. Thus, this work aimed to use FTIR spectra coupled with linear discriminant analysis-simulated annealing algorithm (LDA-SA) to classify commercial olive oils belonging to three Portuguese PDOs, namely, ‘Alentejo Interior’, ‘Beira Interior’, and ‘Trás-os-Montes’. The results showed that a FTIR-LDA-SA model could classify 30 independent oils according to the correct PDO with a sensitivity and specificity of 100% (training, leave-one-out cross-validation) and a sensitivity of 97.5% for the repeated K-fold cross-validation), based on the transmittance values recorded at six selected wavenumbers.
- Interdisciplinary investigations identify local knowledge important for pastoralist adaptation to climate change in Montesinho (Portugal)Publication . Aleixo-Pais, Isa G.; Castro, José; Frazão-Moreira, Amélia; Castro, João Paulo; Castro, MarinaPastoralists are among the most vulnerable groups to climate change and variability, as they depend on bioclimatic conditions for livestock forage biodiversity and production. In the complex socio-ecological system of the mountainous area of Montesinho Natural Park (north-east Portugal, Western Europe), traditional pastoralists are impacted by climate change in their rangelands (e.g. average monthly temperature increase, shifts in precipitation patterns) (Castro et al. 2021; Oliveira 2023). To understand the adaptive responses of local pastoralists to environmental change, this interdisciplinary research applied a three-step method. Firstly, we performed walking ethnographies with shepherds for over two years and used dialogues and observations to identify perceptions and local adaptations. Secondly, adaptive practices from other pastoral groups that could be viable in the study area were identified from the literature. And thirdly, co-participatory consultation workshops with pastoralists and representatives of local and national entities were developed to discuss and assess the adaptive measures for its practicality and sustainability. Shifts in precipitation patterns, drought and higher temperatures in the winter were identified as climate changes by local pastoralists, and several adaptive practices for water provision and conservation, additional fodder supply and livestock thermal comfort were listed by all local stakeholders involved in the project, as feasible solutions to overcome regional ecosystem shocks and trends. Local knowledge and climate perceptions were important for the documentation of adaptations at the rangeland level. This integrative approach, which resulted in a good practices guide, promotes practitioners and decision-makers to identify and discuss measures that will contribute to the resilience of traditional mountain pastoralism in the protected area of Montesinho and similar agro-pastoral systems
- Portuguese consumers' preference regarding the presentation of protected designation of origin transmontano goat cheesePublication . Fernandes, António; Fernando, Sousa; Aveiro, Dina; Ribeiro, Maria IsabelData were collected from a sample of 120 individuals aged between 18 and 84 years old through the application of a questionnaire at the National Agricultural Fair, held from June 3 to 11, 2023, at the National Exhibition Center in Santarém, Portugal. Subsequently, the data were analyzed using descriptive statistics, revealing that the majority of the respondents were male (52.5%), had secondary (25.0%) or higher (41.7%) education qualifications, lived in households of 2 (35.8%) or 3 people (24.2%) with a monthly net income between 501 and 1,000 euros (20.8%) or 1,001 and 3,000 (40.3%) in the districts of Santarém (25.8%), Lisboa (15.8%), or Leiria (9.2%). The majority (84.5%) consumed cheese more than once a week. They preferred cheese made with raw milk (68.3%) from goat (55.0%), with a curing time of around 30 days (55.0%) or 90 days (51.7%). They also preferred the whole cheese (61.7%), certified (59.1%) with Protected Designation of Origin (PDO), Protected Geographical Identification (PGI), or Organic Agriculture (OA). As for the cheese size, the respondents preferred wedges of 220 and 400 g. The most important attribute for consumers proved to be the price, followed by the type of milk (cow, sheep, goat, mixed), curing time, cheese size/portion, presentation form (whole, half, wedge), type of milk (pasteurized, raw), certification (PDO, PGI, OA) and whether the cheese had spices/aromatic herbs. The study reveals that the commercial strategy of the producer group (LEICRAS) should prioritize smaller portions without using spices/aromatic herbs, since opting for smaller-sized cheese entails higher operating costs.
- Projeto Bio Ilhas: Conectando Ciência e Educação para sensibilizar para a importância da conservação dos rios.Publication . Ferreira, Nathália Borges Bartoli; Sá, Isabel; Nogueira, Clotilde; Fachada, Ivone; Calheiros, Cristina Sousa Coutinho; Geraldes, Ana Maria; Pereira, Ana I.O projeto Bio Ilhas, promovido pelo Centro de Ciência Viva de Bragança e financiado pela Fundação La Caixa, representa uma aplicação inovadora de Soluções Baseadas na Natureza (SBN) para a recuperação de ecossistemas aquáticos urbanos através da instalação de ilhas flutuantes artificiais. Este projeto combina ciência, educação e divulgação para promover a conservação dos ecossistemas aquáticos. As ilhas flutuantes têm o objetivo de promover a biodiversidade, mitigar impactos ambientais e melhorar a qualidade da água. No âmbito deste projeto foram instaladas ilhas flutuantes nos rios Fervença, em Bragança, e Côa, próximo ao Museu Côa-Parque, com áreas de 4m² e 3m², respetivamente. Os materiais utilizados na composição das ilhas foram o aglomerado de cortiça e o poliestireno reciclado, suportando plantas aquáticas com capacidade de remover nutrientes e melhorar a qualidade da água. Serão efetuadas monitorizações regulares para avaliar parâmetros como a qualidade da água, a taxa de sobrevivência das plantas, a colonização por macroinvertebrados e a utilização pela fauna terrestre e aquática. As ilhas, para além de contribuírem para o fomento da biodiversidade local, servem também como ferramentas educacionais para envolver a comunidade em atividades de educação ambiental e ciência cidadã. O projeto reforça a importância da integração da natureza em áreas urbanas, com impacto direto na qualidade de vida e no envolvimento social, estimulando a literacia ambiental e incentivando ações de conservação.
- Uso de membranas incorporadas com cortiça para a purificação de biodiesel de óleo residualPublication . Romansina, Bruna Clara; Brito, Paulo; Paschoal, Sirlei M.; Gomes, Maria Carolina SérgiO biodiesel vem ganhando destaque no mundo por possuir matéria-prima renovável, além de ser menos poluente que os combustíveis fósseis. Após a transesterificação, é necessária a separação e purificação dos ésteres, sendo empregadas lavagens aquosas para remover o glicerol. Porém, este processo convencional requer um alto volume de água. O objetivo deste trabalho foi avaliar o processo de separação utilizando membranas poliméricas funcionalizadas com cortiça como alternativa na purificação de biodiesel. O biodiesel foi produzido por transesterificação etílica utilizando óleo de algodão residual e NaOH como catalisador. As membranas foram produzidas pelo método de inversão de fases empregando polietersulfona como polímero, polivinilpirrolidona como copolímero, dimetilacinamida como solvente e cortiça como aditivo. As membranas foram caracterizadas em termos de permeabilidade hidráulica e MEV. O processo de separação foi realizado em um módulo de membranas e avaliou-se a filtração em duas fases distintas da produção do biodiesel. A primeira fase após a transesterificação e a segunda foi após a decantação da mistura reacional, utilizando a fase leve rica em ésteres. A menor concentração de glicerol obtida no permeado foi 0,097 ± 0,006%, na filtração da fase leve contendo os ésteres, representando uma retenção do glicerol pela membrana foi de 99,65%.