Unveiling the Patterns of Wild Bee‐Plant Interactions on a Large and Mostly Unexplored Mediterranean Island (Sardinia, Italy)

(Warncke, 1991), here reported for the first time from Italy, and six additional species newly recorded for Sardinia, highlighting the still incomplete exploration of the island's bee fauna. Bee diversity varied across sites, with higher richness at greater habitat heterogeneity, and at temporal scale, with consistent peaks of richness and diversity in May-July, likely according to variation in plant species richness but not in plant abundance. All bee-plant networks (divided by site and seasonal period) were highly specialized, modular, and non-nested, indicating low stability and potential vulnerability to disturbances. Network-level specialization, but not species-level specialization, varied among sites and also peaked in May-July, while marginally decreasing with plant species richness in the whole community. Since habitat heterogeneity was positively associated with percentage of both crop and urban cover, the observed patterns preliminarily suggested a role of anthropogenic disturbance on bee communities but not, or weakly, on network topology. Broader sampling across Sardinia will refine our understanding of habitat-driven effects.