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Percorrer por autor "Morais, Lurdes"

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  • Long-Term Vegetation Recovery on Berlenga Island Following Conservation Measures
    Publication . Mouga, Teresa; Crisóstomo, Paulo; Mourato, Eduardo; Morais, Lurdes
    The Berlengas archipelago, a UNESCO Biosphere Reserve, is home to unique endemic plant species, making its conservation vital. However, invasive species, human activities, and environmental pressures have severely impacted its native vegetation. Since 2014, control measures, including the removal of invasive species (Carpobrotusedulis, black rats, and rabbits) have been implemented to restore the island’s ecosystem. This study assesses the long-term changes in vegetation on the island’s plateau until 2024. Exclusion zones were established to protect areas domi-nated by the endangered Armeria berlengensis and other native species from seagull disturbance. Results reveal a slow recovery of A. berlengensis, with a non-significant increase in its cover within the exclusion zones where the species already existed. Meanwhile, nitrophilous species such as Echium rosulatum and Calendula suffruti-cosa subsp. algarbiensis, along with species from the Poaceae family continue domi-nant in unprotected areas. These findings highlight the need for ongoing management to safeguard the island’s biodiversity and support the recovery of its endemic flora.
    2026Capítulo de livro Acesso restrito Ver mais
  • Recent Efforts to Recover Armeria berlengensis, an Endemic Species from Berlengas Archipelago, Portugal
    Publication . Mouga, Teresa; Mendes, Susana; Franco, Inês; Fagundes, Ana Isabel; Oliveira, Nuno; Crisóstomo, Paulo; Morais, Lurdes; Afonso, Clélia
    Berlengas archipelago is a UNESCO world heritage site and the only location where Armeria berlengensis is found. This species faces various threats, namely, human disturbance, the presence of Carpobrotus edulis, yellow-legged gull, common-rabbit, and black-rat populations. Thus, exclusion areas were installed, which blocked the access of most Gulls, aiming to promote the recovery of A. berlengensis. Additionally, rabbits and rats were removed from the island. After six years of surveys, there has been an increase in the number of individuals of A. berlengensis in the exclusion areas, and a clear shift in the size structure of the A. berlengensis population. Significant changes in the height and diameter of the individuals were also noted. These findings indicate that the population of A. berlengensis is changing and becoming a healthier population. Principal component analysis results show a straightforward dissimilarity between the areas with A. berlengensis and those without the species and allowed the clustering of two groups: the rupicolous species and the nitrophilous species. A. berlengensis produces few seeds (seed set 3.4%), which raises concern regarding the long-term survival of the species. Thus, further conservation efforts must be implemented, such as the control of invasive species, gulls, and ruderals, to allow for the recovery of A. berlengensis.
    2021-03-07Artigo científico Acesso aberto Ver mais
  • The vegetation of Berlengas’ island: an attempt to promote the recovery of Armeria berlenguensis (Plumbaginaceae)
    Publication . Mendes, Susana; Franco, Inês; Fagundes, Isabel; Oliveira, Nuno; Crisóstomo, Paulo; Morais, Lurdes; Afonso, Clélia; Mouga, Teresa
    2018Documento de conferência Acesso aberto Ver mais