Browsing by Author "Gabriel, Rosalina"
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- Active aging and intergenerational cooperation in volunteer work: the T- Squads as a pilot intervention on termite pest control in the Azores (Portugal)Publication . Arroz, Ana Margarida Moura; São Marcos, Rita; Silva, Paulo Rogério; Neves, Isabel; Gabriel, Rosalina; Borges, Paulo A. V.Drywood termite is an insect pest that causes great damage by consuming an entire house wood infra-structure. In the Azores it is dangerously well established and its impacts are increased when combined with the region's regular seismic activity. The pest is mainly established in the historical city centers, mostly composed by old housing and inhabited by aged citizens with low socioeconomic, literacy and physical mobility resources.
- AGRUPAI-T - Associar para Gerir o Risco Urbano para o Património Arquitectónico Açoriano Infestado por Térmitas: mediação para uma gestão integrada do risco no controlo de uma praga urbanaPublication . São Marcos, Rita; Arroz, Ana Margarida Moura; Gabriel, Rosalina; Borges, Paulo A. V.Drywood termite Cryptotermes brevis is one of the insect pests that cause more damage. Established in Africa, Australia, Pacific, Indic and the Atlantic Island, South and North America, in the USA, $120 million are accounted for its control costs and untold amount sworld wide. It is a severe, invasive urban pest capable of consuming na entire housewood infra-structure. In the Azores it is dangerously well established, as the seriousness of its impacts are increased when combined with the region’s seismic activity. 16 parishes of 5 islands have been defined as risk areas, now threatening to spread to the entire archipelago. Its first record in Lisbon generates the alarm to be Europe´s doorway to the pest.
- AGRUPAI-T – Como tornar comum um problema de todos nós? Um estudo de caso para a facilitação da participação e envolvimento público na gestão de uma praga urbanaPublication . São Marcos, Rita; Arroz, Ana Margarida Moura; Neves, Isabel; Silva, Paulo Rogério; Gabriel, Rosalina; Borges, Paulo A. V.A Cryptotermes brevis é das pragas de insetos que maiores danos causam ao ser capaz de consumir toda a infraestrutura em madeira de uma habitação. $120 milhões são gastos anualmente nos EUA para o seu controlo e inumeráveis somas no resto do globo.
- Alternative methods to synthetic chemical control of Cynodon dactylon (L.) Pers. A systematic reviewPublication . Soares, Pedro Ribeiro; Galhano, C.; Gabriel, RosalinaABSTRACT: Cynodon dactylon (L.) Pers. is one of the worst agricultural weeds and invasive species in the world, being widely established in many countries. Despite its impact on agriculture and the growing awareness of authorities and consumers about the consequences of synthetic herbicides, alternative control methods for this weed have been poorly reviewed. A systematic review of the literature published over the last 50 years was used to assess the most studied control methods of C. dactylon (excluding synthetic herbicides) and to summarize the trends and knowledge gaps. The major fndings are as follows: (1) the number of publications that studied alternative methods to synthetic chemical control in C. dactylon management has been increasing exponentially since 1972; (2) most of the studies were made under controlled conditions (57%) and lack observations under real production conditions; (3) most of the feld experiments were carried out in Asia (42%), under temperate subtropical and arid climates; (4) the publication of articles studying allelopathy stands out signifcantly (50% of the papers found), with two species from the Poaceae family, rice (Oryza sativa L.) and sorghum (Sorghum bicolor (L.) Moench), showing very high allelopathic inhibitory efects (often above 80%), especially under open feld conditions; and (5) preventive soil tillage is the most studied treatment among indirect weed control treatments, and although there is a high risk of propagation, the results indicate that tillage can signifcantly contribute to control C. dactylon, when compared to no-tillage treatments. Further research is needed to optimize treatments and methods so that they can be applied by farmers under real production conditions.
- O Ambiente não é qualquer coisa! - Diversidade de perspectivas das crianças acerca do ambientePublication . Arroz, Ana Margarida Moura; Gabriel, Rosalina; Neilson, Alison; Rodrigues, Luzia
- O Ambiente no futuro: Representações e preocupações de crianças terceirenses.Publication . Rodrigues, Luzia; Arroz, Ana Margarida Moura; Gabriel, Rosalina; Neilson, Alison
- As áreas naturais protegidas mais conhecidas pelos residentes na Ilha Terceira.Publication . Gabriel, Rosalina; Ramos-Lemoine, Veronica; Orozco-Borgas, Alejandro; Barcelos, Paulo J. M.; Arroz, Ana MouraA CONSERVAÇÃO DA BIODIVERSIDADE é um objectivo central para a sobrevivência dos seres humanos no Planeta Terra. No entanto enfrentamos problemas e desafios complexos no que se refere à sua operacionalização. Como se conservam as espécies? Que espécies conservar primeiro? Que papel pode cada um de nós desempenhar na sua conservação? O declínio da riqueza e também da abundância de espécies – mesmo de espécies comuns – tem sido bem documentado nos últimos anos (ex. Borges, Gabriel & Fattorini, 2020), surgindo até a ideia de que a extinção de espécies a que assistimos marcaria o início de uma nova época – o Antropoceno, conceito proposto em 2000, e caracterizado pelo efeito significativo e duradouro das actividades humanas no planeta Terra (Crutzen & Stoermer, 2000; Mendes, 2020).
- Arthropod co-occurrence networks indicate environmental differences between islands and signal introduced species in Azorean native forest remnantsPublication . Pozsgai, Gabor; Cardoso, Pedro; Rigal, François; Boieiro, Mário; Gabriel, Rosalina; de Azevedo, Eduardo B.; Borges, Paulo A. V.Island biotas are in imminent threat from anthropogenic impacts. Of these impacts, the negative effects of exotic species on the taxonomic and functional diversity of the local fauna are of major concern. Exotics may also have a detrimental effect on interspecific interactions which, in turn, can destabilize ecological networks. Species co-occurrence networks can detect species-to-species associations and are used to predict ecological interaction networks and utilized as tools to assess environmental impacts on community structure. Here, we aim to investigate whether or not topological differences of the arthropod co-occurrence networks among native forest fragments from seven Azorean islands can reveal the influence of the abiotic environment and exotic species on these networks. Co-occurrence networks were sensitive to environmental and community dissimilarities, showing a clear separation between islands and pinpointed differences between indigenous and exotic networks. Most exotics were little connected and exotic networks had a large proportion of unconnected species. The resulting decreased connectance and the increased modularity with the increase of the proportions of exotics in the networks suggest that most exotics have too low prevalence to show associations with other species, and only a few dominants drive co-occurrences. The proportion of negative links, as indicators of competition, did not increase with the increase of exotics in the habitats, suggesting that exotics provided new functional roles when they colonized native forest remnants. However, when the theoretical networks consisting of only indigenous species were investigated, connectance decreased and closeness increased with the increase of exotics, suggesting processes of network degradation. Since our study provides ample evidence for the usefulness of co-occurrence network analysis in studying island ecosystems, we recommend the use of this tool for ecosystem assessments, early warning systems and decision-making in island biodiversity conservation.
- Arthropod diversity in two Historic Gardens in the Azores, PortugalPublication . Arteaga, Alba; Malumbres-Olarte, Jagoba; Gabriel, Rosalina; Ros-Prieto, A.; Casimiro, Pedro; Fuentes-Sánchez, Ana; Albergaria, Isabel Soares de; Borges, Paulo A. V.The aim of our study was to characterise and compare the richness and composition of endemic, native (non-endemic) and introduced arthropod assemblages of two Azorean Historic Gardens with contrasting plant species composition. We hypothesised that Faial Botanic Garden would hold higher arthropod diversity and abundance of native and endemic arthropod species due to its larger native plant community. Species were collected using several arthropod standardised techniques between April 2017 and June 2018. We used the alpha diversity metrics (Hill series) and the partitioning of total beta diversity (βtotal) into its replacement (βrepl) and richness (βrich) components, to analyse the adult and total arthropod community. The orders Araneae, Coleoptera and Hemiptera were also studied separately. Our results show that the number of exotic arthropod species exceeds the number of native and/or the endemic species in both gardens, but the arthropod community of Faial Botanic Garden exhibited a higher density of endemic and native species. Despite some minor exceptions, the geographic origins of plant communities largely influenced the arthropod species sampled in each garden. This study improves our knowledge about urban arthropod diversity in the Azores and shows how well-designed urban garden management and planning contribute to the conservation of native and endemic Azorean species.
- Arthropod diversity patterns in three coastal marshes in Terceira Island (Azores)Publication . Borges, Paulo A. V.; Pimentel, C.; Brito, Mariana dos Reis; Borda-de-Água, Luís; Gabriel, RosalinaThe coastal wet areas of Praia da Vitória (Terceira, Azores) were investigated to describe the ground and aerial (herbaceous and canopy) arthropod communities by comparing patterns of species composition, abundance and diversity. Three wet areas were studied: Paul da Praia da Vitória (PPV), Paul do Belo Jardim (PBJ) and Paul da Pedreira do Cabo da Praia (PPCP). A standardized protocol (based on the COBRA protocol) was performed with day and night sampling of arthropods with a total of 56 samples per site. Common diversity metrics (Hill series) were calculated and abundance patterns were investigated using species abundance distributions (SAD). All investigated communities were dominated by native non-endemic and exotic species; only seven out of the 132 endemic arthropod species and subspecies existing in Terceira Island were found in the area. The logseries described well the communities, with a prevalence of rare species. The three sites seem to work as a complementary network of wet areas with specific arthropod communities possibly related to their specific features. However, Paul do Belo Jardim (PBJ) performed better for many of the investigated indicators, and two IUCN endangered species, the true weevil Drouetius oceanicus oceanicus and the Azorean cone-head grasshopper (Conocephalus chavesi) are relatively abundant there. Due to habitat changes that occurred between 2006 and 2010 in PPV, only one of the three most abundant ground-beetles recorded in 1991-1993 and 2003 was found but only after some additional sampling in a small remnant of the original habitat.