A Specialist in an Urban Area: Are Cities Suitable to Harbour Populations of the Oligolectic BeeCentris(Melacentris)collaris(Apidae: Centridini)?

Although bees have been demonstrated to be abundant and species-rich in cities, several studies pointed out that oligolectic species are scarce in those urban landscapes. Oligolectic species are those whose females collect pollen from a few closely related plant species or from some species belonging to the same or related plant families. We studied three nest aggregations of the oligolectic bee Centris collaris (Apidae) in an urban area. Nest...