Numerical analyses of distributions of Iberian and Balearic endemic monocotyledons
Abstract:Chorological information concerning 182 taxa of monocotyledons endemic to the Iberian Peninsula and Balearic Islands was compiled and related to the 100×100 km, 50×50 km and 10×10 km UTM grids. Distributions were analysed using multivariate methods (two-way indicator species analysis and detrended correspondence analysis) for each scale. Comparison of results allows recognition of several floristic elements and sectors (i.e. Balearic, Murcian-Almerian, south western) common to all three scales, whereas other regions are assigned to different sectors depending on the grid size considered. As a consequence of the increase in detail, characteristics such as number of sectors, the outline of boundaries and continuity or fragmentation of the areas also change. These factors are discussed.
Keywords: Balearic Islands; Endemicidad; Endemism; Iberian Peninsula; análisis multivariante; biogeografía; biogeography; islas Baleares; monocotiledóneas; monocotyledons; multivariate analysis; península Ibérica
Document Type: Original Article
Affiliations: , Departamento de Interuniversitario de Ecología, Universidad Autónoma de Madrid, E-28049-Madrid, Spain
Publication date: 1998-01-01