The mycobiota (Agaricales, Boletales, Russulales) from Andalusia (southern Spain): chorological and biogeographical analysis

نویسندگان

  • A. Ortega
  • F. B. Navarro
چکیده

This study analyses the Andalusian mycobiota (Agaricales, Boletales, Russulales) from a biogeographical standpoint. For this, the best-represented groups of macrofungi have been selected, including ectomycorrhizal and saprotrophic species, to discover whether their chorological behaviour is different or similar. Locations in a number of important chorological sectors in Andalusia have been sampled, namely the Aljíbico, Gaditano-Onubense, Guadiciano-Bacense, Malacitano-Almijarense, Mariánico-Monchiquense, Nevadense, Rondeño and Subbético sectors. A broad, current bibliography on Andalusian mycoflora has been used, as well as material on deposit in the GDA-GDAC (University of Granada) herbarium. Of all the references reviewed in this bibliography, those selected cover 15 genera in the orders of Agaricales, Boletales and Russulales. Correspondence Analyses (CA) have been made to establish the relationships between the different chorological sectors. The chorological sectors Aljíbico and Mariánico-Monchiquense have a greater representation of mycorrhizal than saprotrophic taxa, and this situation is the opposite in the Rondeño, Nevadense, Guadiciano-Bacense, Subbético and Malacitano-Almijarense sectors. The Gaditano-Onubense chorological sector is clearly differentiated from the rest. The Aljíbico and Mariánico-Monchiquense chorological sectors are closely related. With regard to the other areas, there is a certain relation between the Rondeño, Guadiciano-Bacense and Malacitano-Almijarense sectors. The chorological sector Nevadense is differentiated from the other eastern Andalusian sectors. The macrofungi species of any one area or region constitute a good parameter to perform biogeographical studies. The ectomycorrhizal species respond, due to their distribution, above all to the biogeographical characteristics of a region, whilst the saprophytic species respond to the local pluviometric regime.

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تاریخ انتشار 2006