Resumen de Análisis florístico de las Sierras de María y Orce (provincias de Almería y Granada, España)
Miguel Cueto Romero, Gabriel Blanca López, José Luis González Rebollar
- español
Se realiza un estudio de la flora de las sierras de María y Orce, analizándose los biotipos dominantes, carácter endémico, conservación y presencia por pisos bioclimáticos.
- English
We carried out a floristic analysis of the María and Orce mountain ranges, situated in the north of Almería and Granada provinces, respectively, in a region of continentalized climate with a climatic irregularity of 37.5%. The biological spectrum was compared with other peninsular and north african areas. Being a montane zone, the dominant biotype is hemicryptophytic, but a relatively high proportion of therophytes is also present, which indicates a southeast semiarid peninsular influence. Data obtained from analysis of floristic elements present (mediterranean, 51 %; iberian, 18.5 %; ibero-northafrican, 10.3 %; etc.) allow these mountain ranges to be characterized as an area of conjunction between diverse floras, specifically betic (central and eastern andalusian), eastern peninsular (taxa of the southeastern and eastern peninsular regions which may also be present in the central or southern peninsular regions), and Murcia-Almerian (southeast semiarid). The area possesses 6 local endemics: Brassica repanda (Willd.) DC. subsp. almeriensis Gómez-Campo, Nepeta hispanica Boiss. & Reuter in Boiss, subsp. hispanica, Sideritis stachydioidesV/iWk., Sideritis x sagredoi O. Socorro, J. Molero, M. Casares & F. Pérez Raya, Centaurea mariana Nyman and Centaurea Xpüfontiana Fernández Casas & Susanna. The distribution of taxa in bioclimatic belts was also studied. There was a predominance of those taxa which occur in both the mesomediterranean and the supramediterranean. Analysis of the degree of conservation of the flora according to the categories of the IUCN (25.7% of the flora was found to be threatened to a certain degree) indicates that 85.7% of threatened taxa are present in the supra- and oromediterranean. Lastly, we give the distribution of floristic elements according to the bioclimatic belts, noting that the endemics of most limited range are present in the summit zones, with the exception of the Almenan endemics, whose área of distribution is the basal belt of the semiarid Murcia-Almerian region.
