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Publications (21)
Despite growing evidence that many invasive plants have impacts at soil level, it is less clear how these changes affect the recovery of invaded systems after their removal.Acacia longifolia is an invasive species in coastal areas around the world; it modifies soil properties and forms a thick layer of litter that can hinder the recovery of native...
A two years’ experiment (2015–2016) was set in a factorial design in which the effect of two application forms of nitrogen (N) (soil and soil + foliar spray) in different doses (0, 25, 50, and 100 kg N ha‐1) on almond (Prunus dulcis Mill. cv. “Masbovera”) was evaluated. Kernel yield, biometric properties, phytochemicals, and antioxidant activities...
Tendo em conta os impactes económicos, ecológicos e sociais das espécies invasoras já dispersas no território nacional é crucial um forte investimento para prevenir a entrada de novas espécies (potencialmente) invasoras e detetar precocemente novos focos de invasão de forma a promover uma gestão eficaz e atempada que limite novas invasões biológica...
WebMapping and citizen science are increasing their importance as tools both in science communication and in gathering abundant data. Nevertheless, gathering good and plentiful data from citizens when the scientific theme is unknown to them is a demanding challenge. Invasoras.pt is a science communication endeavor that targets the general public an...
Invasion by alien plants results in serious adverse impacts on biodiversity, ecosystem services, economy and social welfare, and is an ever-increasing challenge for nature conservation. Control of established invasive species is frequently very difficult and costly. Therefore, predicting which species have risk of becoming invasive is crucial both...
Phenological shifts may play an important role in the success of invasive species. In the coastal regions of continental Portugal, Acacia longifolia is one of the most widespread invasive plants, but there are significant gaps in our understanding and interpretation of its phenology. This study is the first to investigate the phenological variation...
Wood samples of Cupressus arizonica, C. lusitanica, and C. sempervirens were evaluated for chemical, anatomical, and pulp characteristics as raw material for pulp production. Two 17-year-old trees per species were harvested, and wood samples were taken at a height of 2 m. Wood chips from Pinus pinaster (Portugal) and P. sylvestris (Finland) were us...
Field guide about invasive plant species in Portugal. Includes invasive and potentially invasive plants. (in Portuguese)
Sand dune ecosystems are one of the areas most affected by the introduction of invasive species which represents a threat for biodiversity conservation. Their invasion patterns and spread may depend on their salinity tolerance, besides other factors. To test this hypothesis, we investigated the effects of salt stress on seed germination and on the...
The variation in extractives content in sapwood and heartwood was
investigated among 12 trees in each of four commercial plantations of Eucalyptus
globulus in central Portugal. The study was carried out at the 15% height level and
extractions used successively dichloromethane, ethanol and water. At all sites,
heartwood had significantly more extrac...
Urban landscapes support a high and rich diversity often occurring as unusual or unique communities. Urban green areas are a vital part of the urban landscape, providing contact with wildlife and environmental services with additional socio-ecological benefits to the overall quality of life. The composition and diversity of vascular plants and macr...
Salt tolerance of two co-occurring legumes in coastal areas of Portugal, a native species--Ulex europaeus, and an invasive species--Acacia longifolia, was evaluated in relation to plant growth, ion content and antioxidant enzyme activities. Plants were submitted to four concentrations of NaCl (0, 50, 100 and 200 mM) for three months, under controll...
Citizens represent a vector of introduction and spread of invasive alien species (IAS) and, on the other hand, can play a major role in helping to prevent and control IAS. Even though IAS and their consequences are recognised by the Portuguese law since 1999, a large proportion of the population is still unaware
of biological invasions. To reduce...
The amount of heartwood and sapwood in Eucalyptus globulus Labill. wood was determined in commercial pulpwood plantations at harvest age (12 to 15 years) in four ites in central portugal. twelve trees were sampled in each site at nine stem height levels. Heartwood was present in all the trees up to 82%–87% of the total tree height and amounted to 3...
Wood samples from Cupressus lusitanica, C. sempervirens and C. arizonica were evaluated in terms of chemical and anatomical features in order to foresee its aptitude for pulp production. Two 17-year-old trees per species were harvested and wood samples taken at two stem height levels. Extractives and Klason lignin content were determined in the dif...
In this paper we report new data about two wood species that could play a role in the Portuguese forest as raw material for the paper industry: Cupressus arizonica and Cupressus sempervirens. Results on the behaviour of wood samples taken from 16 year-old trees, (two per species and at two height levels), have shown lower kraft pulp yields than ref...
