Composición vegetal de la Estación Biológica de la UCM 'Finca de Ontalba'/Vegetation composition of the UCM Biological Field Station "Finca de Ontalba"

A vegetation study in the Biological Field Station of the Complutense University of Madrid named 'Finca de Ontalba', located in Guadarrama Mountains (North Madrid), was carried out. We identified 12 plant communities grouped in the following seven vegetation types: 1) Hygrophilous and aquatic communities; 2) Meadows; 3) Pioneer community of open disturbed soils; 4) Nitrophilous tall-herb vegetation of forest edge; 5) Forest-edge herbaceous community; 6) Forest-edge scrub community; and 7) Forest vegetation. The interest of the Station for research studies is pointed out. Its scope includes primary succession, amphibious environment, soil moisture gradient, ecotones, and forested environment. Besides, the Biological Station hosts a freshwater habitat type listed in the European Community Directive (92/43/EEC) which corresponds to water courses of plain or montane levels with Ranunculion fluitantis and Callitricho-Batrachion vegetation (habitat code 3260). [PUBLICATION ABSTRACT]