Numerical analyses of distributions of Iberian and Balearic endemic monocotyledons

• Published in: Journal of biogeography Vol. 25; no. 1; pp. 179 - 194
• Main Authors: Moreno Saiz, J. C., Castro Parga, I, Sainz Ollero, H
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Science Ltd 01.01.1998; Blackwell Science; Blackwell
• Subjects: Animal and plant ecology; Animal, plant and microbial ecology; análisis multivariante; Aspects of European Plant Geography; Balearic Islands; biogeografía; Biogeography; Biological and medical sciences; Endemicidad; Endemism; Flora; Fundamental and applied biological sciences. Psychology; Geographic regions; Iberian Peninsula; islas Baleares; monocotiledóneas; monocotyledons; Mountain ranges; Mountains; multivariate analysis; Ordination; península Ibérica; Plants; Quadrants; Synecology; Taxa; Terrestrial ecosystems; Vegetation; Iberian Peninsula; Balearic Islands; Europe; Spain; Monocotyledones; Numerical analysis; Endemic species; Phytogeography; Geographic distribution; Angiospermae; Biogeography; Spermatophyta; Multivariate analysis
• ISSN: 0305-0270; 1365-2699
• DOI: 10.1046/j.1365-2699.1998.251118.x

Chorological information concerning 182 taxa of monocotyledons endemic to the Iberian Peninsula and Balearic Islands was compiled and related to the$100 \times100 km$, 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.