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The role of holm oak edges in the control of disturbance and conservation of pl...
Azevedo, João; Possacos, Anabela; Aguiar, Carlos; Amado, Anabela; Miguel, Luis; Dias, Rui; Loureiro, Carlos; Fernandes, Paulo M.Holm oak (Quercus rotundifolia) woodlands have been able to persist in fire-prone landscapes in northern Portugal where they seem to play a relevant role in community and landscape level patterns and processes, namely in the control of disturbance events and in the maintenance of biodiversity. In this research we tested the following hypotheses: (i) holm oak woodlands affect fire behavior, mainly by disrupting ...
Exploring the potential of vegetation corridors in forest fire hazard reduction...
Azevedo, João; Possacos, Anabela; Dias, Rui; Marrão, Rosalina; Loureiro, Carlos; Fernandes, Paulo M.In north-eastern Portugal, holm oak (Quercus rotundifolia) woodlands have persisted in the landscape despite the occurrence of frequent fires. The hypothesis that these elements have a role in fire related processes has been proposed by foresters and scientists but only recently it has been addressed. In this research we analysed the current distribution of holm oak remnants in the region in terms of features s...
Herbaceous plant diversity across fire created edges in continental holm oak wo...
Azevedo, João; Fernández-Núñez, E.; Miguel, Luis; Amado, Anabela; Possacos, Anabela; Aguiar, CarlosWe analyzed herbaceous plants distribution across edges of holm oak (Quercus rotundifolia) woodlands created and maintained by fire in order to describe plant community structure across edges and to evaluate the role of fire in the patterning of plant diversity at the patch scale. We recorded abundance in twelve 60 m long sampling lines placed perpendicularly to the woodlands boundary at 1, 5, ...
Influência de manchas de azinhal na dinâmica espacial de fogos florestais
Possacos, Anabela SilvaO presente trabalho pretende testar a hipótese de que a resistência dos azinhais ao fogo depende da distribuição de combustíveis ao longo do gradiente exterior – interior dos azinhais (orlas). Com base na descrição quantitativa do complexo combustível, pretende ainda criar modelos de combustível para o azinhal e analisar o comportamento do fogo potencial, de acordo com os parâmetros do modelo de propagação do f...
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