1 Plant-Environment Interactions and Biodiversity Lab, Forest Research Centre & Associate Laboratory TERRA, Higher School of Agriculture, University of Lisbon, 1349-017 Lisboa, Portugal.
2 GeoBioSciences, GeoTechnologies and GeoEngineering, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Monte de Caparica, Portugal.