New data of the spider fauna (Araneae) of Navarre, Spain : results from the 7th EDGG field workshop

Multi-taxon investigations are of a great importance in biodiversity research. We sampled spiders during the 7th EDGG Field Workshop aimed to study dry grassland diversity in Navarre, Spain. A total of 99 spider species of 15 families was recorded from 14 localities. Of these, 47 species were new to Navarre. To date, the list of spiders of Navarre accounts for 322 species. During this first dry grassland-specific study of spiders in Spain, 78 species were recorded for the first time in this type of habitats in Navarra, and for 69 species, it is a newly recorded habitat in the Iberian Peninsula. The grasslands growing in the submediterranean humid and supramediterranean upper dry territories, belonging to Festuco-Brometea and Festuco-Ononidetea phytosociological classes, were the richest in terms of inhabiting spiders (26 and 23 species, respectively) while the communities of mesomediterranean semi-arid area (Lygeo-Stipetea and Salicornietea fruticosae classes) were the poorest (four species each)