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- Novas ocorrências de Sphagnum auriculatum no Sul de Portugal. Significado paleobiogeográficoPublication . Neto, C.; Arsénio, Pedro; Monteiro-Henriques, T.; Sérgio, C.; Costa, José Carlos
- Sintra vegetation and landscapePublication . Mesquita, S.; Arsénio, Pedro; Lousã, M.; Monteiro-Henriques, T.; Costa, José CarlosThe field trip to Sintra region, as part of the 48th IAVS Symposium, aims to illustrate well-preserved and representative plant communities of Sintra municipality. It consists of two short field stops and a 3 km walk
- A methodological approach to potential vegetation modeling using GIS techniques and phytosociological expert-knowledge: application to mainland PortugalPublication . Capelo, J.; Mesquita, S.; Costa, José Carlos; Arsénio, Pedro; Neto, C.; Monteiro-Henriques, T.; Aguiar, C.; Honrado, J.; Espírito-Santo, Maria Dalila; Lousã, M.An attempt to obtain a consistent spatial model of natural potential vegetation (NPV) for the mainland Portuguese territory is reported. Spatial modeling procedures performed in a Geographic Information System (GIS) environment, aimed to operationalize phytosociological expert-knowledge about the putative distribution of potential zona1 forest communities dominam in the Portuguese continental territories. The paradigm for NPV assumed was that of RIVAS-MARTINE(1Z9 76) and RIVAS-MARTINEeZt al. (1999), which presupposes, for a given territory, a univocal correspondence between a uniform combination of bioclimatic stage and lithology' gi ven a biogeographical context, and a unique successional sequence leading to a single climax community (i. e. a vegetation series (VS)). Information issued from both literature and a team of phytosociologists possessing detailed knowledge about Portuguese vegetation, namely about forests and its seria1 vegetation, was acknowledged as a starting point for the construction of such a habitat-vegetation correspondence model. First, a bioclimatic map concerning the "Worldwide Bioclimatic Classification System" (WBCS) of RIVAS-MARTINE(1Z9 81 -2004), obtained by multivariate grostatistical interpolation issuing from the work of MESQUITA(2 005), was set. Severa1 partia1 matrices, one for each biogeographical Province, combined such habitat statements to VS. Initial incoherence due to vagueness of statements led to an important amount of both superimposition of VS and habitat gaps in the matrices. Further rearrangement of the table according to known field distribution of VS by experts allowed setting an approximate univocal correspondence VS-habitat. Finally, an intersection of bioclimatic, lithology and biogeographic maps yielded over a thousand habitat combinations to be associated each to a single VS through implementation of the matrices as a set of rules. Again, inconsistencies were solved likewise, but this time by direct observation of the map by experts. Keeping of phytosociological consistency and fidelity to information on actual vegetation field distribution was always mandatory during the process
- The landscape and plant communities of Serra da ArrábidaPublication . Costa, José Carlos; Capelo, J.; Arsénio, Pedro; Monteiro-Henriques, T.The field trip takes place in the biogeographic territories of the Sadensean-Dividing Portuguese Subprovince (Coastal Lusitan- Andalusian Province, Mediterranean Region), throughout the upper thermomediterranean thermotype and subhumid ombrotype.
- Guia geobotânico da excursão ALFA 2009 ao litoral alentejanoPublication . Arsénio, Pedro; Neto, C.; Monteiro-Henriques, T.; Costa, José CarlosThe organization of the Geobotanical Excursion by ALFA (Associação Lusitana de Fitossociologia) is yet another contribution for the enhancement and addition of scientific knowledge regarding the flora and vegetation of the Portuguese territory. This field guide is, thus, a synthetic description of the flora and vegetation occurring in the Coastal Vincentine biogeographical district. Considering both the richness and relevance of its flora (including many endemic species, in particular along its dune fields and rocky cliffs), as well as the diversity of its plant communities, it is clear that we are before one of the most valuable territories regarding nature conservation and biodiversity. Consequently, the locations described in the present field trip guide try to include a large array of habitats (and respective plant communities) occurring in the study region, although with no pretension of being complete. For each community enumerated an ecological characterization is presented, focusing on its hydrology, pedology, geology and geomorphology, as well as bioclimate. Some new syntaxa are presented, which resulted from the field survey undertaken. Lastly, the altitudinal cliseries of the study area is presented.
- Finding the boundary between Eurosiberian and Mediterranean salt marshesPublication . Costa, José Carlos; Arsénio, Pedro; Monteiro-Henriques, T.; Neto, C.; Pereira, E.; Almeida, T.; Izco, J.
- The application of the Habitats Directive in PortugalPublication . Costa, José Carlos; Monteiro-Henriques, T.; Neto, C.; Arsénio, Pedro; Aguiar, C.A succinct review of the application of the Habitats Directive in Portugal is presented. Since 1971 until 2000 Portugal has defined approximately 8,8% of its territory as national protected areas. With the application of the Habitats Directive nature conservation policies extended to more than 17,4 % of the territory increasing by 98% and the knowledge on vegetation community’s habitats was certainly deepened. Including special protection areas (Birds Directive) the Portuguese territory under one or more conservation status totals 21,5%. Finally, the support given by the Portuguese Phytosociology Association – ALFA in the detailed description of the Directive habitats is divulged, showing the importance, usefulness and efficacy of phytosociologic studies.